Intro to Motion - Combined Flashcards
1
Q
Compare slopes at A and B
A
Both slopes are large and negative. A has a higher slope.
2
Q
A
3
Q
What would be the net force upon this object?
A
1 Newton to the right.
4
Q
m/s SouthEast
Is a unit of?
A
Velocity
5
Q
grams x miles/hr
Is a unit of?
A
Momentum
6
Q
Describe the Slope
A
This is a medium constant negative slope.
7
Q
Describe the velocity at E.
A
The velocity has decreased until it is amost zero.
8
Q
Describe the Slope or Steepness.
A
Medium, Positive, and Constant Slope or Steepness.
9
Q
Compare slopes at C and D.
A
Slopes at C and D are both large and negative. The slope at D is larger.
10
Q
In linear motion, the difference between
-55 mph
and
+55 mph
is?
A
Direction only
11
Q
Linear Motion
A
Motion along a line
12
Q
What would be the net force upon this object?
A
10 N to the left.
13
Q
Describe the Slope of this graph
A
Begins with a large positive slope.
The slope gradually decreases until the slope is equal to zero.
14
Q
Acceleration can mean….
A
Speeding up
Slowing down
or
Turning
(Basically, anything you could feel while you were in a car would indicate acceleration)
15
Q
Gravitational Field Strength near the Earth’s surface
A
9.8 newtons/kilogram
16
Q
The amount of matter in an object.
A
Mass
17
Q
Describe the position at D
A
Positive
18
Q
Slope or Steepness at A is…..
A
The slope at A is large and negative
19
Q
As you go along the curve from A to E, the slope
A
Decreases
It goes from large negative to zero.
20
Q
Describe the Slope
A
This is a medium constant negative slope.
21
Q
Velocity
Vector Quantity or not?
A
Vector Quantity
50 mph - North has both magnitude (50) and direction (North).
So, its a vector or vector quantity.
22
Q
m/s
Is a unit of?
A
Speed
23
Q
As you go from A to D, the slope
A
Increases.
It goes from a slope of zero to a large negative slope.
24
Q
Describe the Slope
A
Medium Slope
Negative Slope
Constant Slope
25
Compare slopes at A and B
Both slopes are large and negative. A has a higher slope.
26
The slope at C is...
The slope at C is medium and positive
27
Describe the Steepness
Medium, Constant, Negative Steepness
28
Describe the Slope
The graph starts with a small positive slope. The slope increases until point "c" Then the slope begins to decrease.
The slope is positive at all times in this graph.
29
Describe the slope or steepness at B
Small negative slope
30
Compare slopes at C and D.
Slopes at C and D are both large and negative. The slope at D is larger.
31
In a motion graph, how do we decide which variable to put on the horizontal axis?
"Time"
Always goes on the horizontal axis for motion graphs in Mr. Bixel's physical science class.
32
Describe the Slope
Medium, Constant, Positive.
33
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
34
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
35
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
36
Inertia
VERY close in meaning to "mass"
BUT
Inertia is usually used when you are talking about stopping a moving object or making a stationary object start moving.
37
Describe the slope
The graph starts with a large positive slope. The slope decreases to zero. Then, the slope becomes increasingly negative.
38
Describe the slope or steepness at A.
Zero
39
Describe the slope at point D
Small positive slope
40
41
Describe the position at C
Positive
42
Compare slopes at C and D.
Slopes at C and D are both large and negative. The slope at D is larger.
43
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
44
Displacement
How far you are from where you started, and in what direction.
45
Describe Slope at C
Slope at C is medium and negative
46
Describe the steepness or slope at A
Zero
47
Describe the slope
Negative Slope
Decreasing Slope
(We say the slope is "decreasing" when the "hill" is getting less steep.)
48
True or False?
This object changes direction.
True!
It started out moving in the positive direction, changed directions at point C, and later moves in the negative direction.
49
Describe the Slope or Steepness of this graph
Small, Positive and Constant
50
*x*
the symbol for position
(X marks the spot)
51
Any object experiencing zero net force will ALWAYS have \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Zero Acceleration
52
Scaler
A quantity that has a magnitude (size) but no direction.
Examples:
Temperature. 78 degrees tells you how "big" the temperature is, but there is no direction to 78 degrees.
53
"s" is a unit of
time
"s" means "seconds"
54
Describe the position at E
Positive
55
If an object is not accelerating, you can be absolutely positive that it is experiencing \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Zero Net Force
56
The slope at C is...
The slope at C is medium and positive
57
The study of motion
Kinematics
58
The symbol for acceleration
*a*
59
"m/s" is a unit of
speed
(Units of speed will always have a distance over a time)
60
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
61
The slope(steepness) at D is...
The slope at D is large and positive.
62
When they describe the "top velocity" of a type of airplane, the reference object they would typically use would be what?
The air the plane is flying in.
63
Describe the velocity at A
High Positive Velocity
(Remember, the slope of a position time graph **IS** the velocity.)
64
True or False?
This object changes direction.
True.
The initial velocity of the object is negative. The object changes direction somewhere between C and D, and then moves in the positive direction.
65
66
As you go from A to E, the slope...
Decreases
67
*a*
The symbol for acceleration
68
As you go from A to E, the slope...
Decreases
69
Describe the slope of this graph
Slope is positive and decreases all the way down to zero slope. Then, the slope becomes increasingly negative
70
Describe the Slope of the Blue Line
Constant Slope of Zero
71
The slope at D is....
Large and Negative
72
Air Friction
The force of friction impeding the motion of an object fighting its way through the air.
(It has to bump the air molecules out of the way)
73
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
74
More mass means more \_\_\_\_\_\_\_\_\_\_\_.
Inertia
75
Describe the Slope
Constant
Medium
Positive
76
Compare slopes at A and B
Both slopes are large and negative. A has a higher slope.
77
True/False
The entire time between when this cannonball
leaves the cannon until it hits the ground,
the cannonball is in
"Free Fall."
True.
Once it leaves the cannon, the only force acting upon the cannonball is gravity.
78
Describe Slope at C
Slope at C is medium and negative
79
What quantity is this device used to measure?
Time
80
Objects with bigger mass have more \_\_\_\_\_\_\_\_\_
Inertia
81
Newton's First Law
Objects in motion stay in motion
Objects at rest stay at rest
If its moving, it will keep moving in a straight line, at the same velocity, FOREVER, unless acted upon by a net force.
82
Describe the position and velocity at point A
Position is negative
Velocity is large and positive
83
Describe the Slope
The graph has a Constant Large Negative Slope
84
Slope at E is....
Zero
85
Describe the steepness or slope at A
Zero
86
Describe the Slope
Medium Slope
Negative Slope
Constant Slope
87
Velocity
The speed and direction an object is travelling.
88
Describe the position and velocity at point E
Object has reached the reference point and has come to a stop.
89
What is secret # 4 for understanding these graphs
Secret #4
Just use the word "Steepness" instead of Slope when you write down your description o fthe graph.
Then, go back and erase the word "Steepness" and write in the word slope.
90
Describe the Slope
Contant zero slope
91
Position at A is..
High positive
92
Acceleration = (8 mph) / second
Another way of saying that someone is accelerating in such a fashion that each second they were going 8 mph faster than the second before?
93
Describe the position at point A
The position at point A is zero. The object is at the reference point.
94
Compare slopes at C and D
Both are negative slopes
C has a higher slope
95
Describe the Slope of this graph
Begins with a large positive slope.
The slope gradually decreases until the slope is equal to zero.
96
cm/day
Is a unit of?
Speed
97
The position at A is
Zero.
It is at the reference point.
98
Describe the Slope
Medium, Constant, Positive.
99
Describe the position at A
Positive
100
Describe the Slope of the Red Line
The slope is infinite.
Some may describe this as "undefined."
101
Describe the Slope of this Graph
Starts with medium positive slope.
Slope gradually increases until it is quite steep.
102
What would be the net force upon this object?
30 N to the right.
103
As you go from A to E, the slope...
Decreases
104
Describe the slope at point E.
Zero
105
If a graph has a positive steepness, how would you describe the slope
The graph has positive slope.
(Just replace the word steepness with slope)
106
What would the net force be upon this object?
2 N to the right
107
Definition of Mass
The amount of matter in an object.
(Each time you add an atom to an object, you add mass)
108
Three most common types of interaction
Touch
Gravity
Friction
109
The slope(steepness) at D is...
The slope at D is large and positive.
110
"hr" is a unit of
time
111
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
112
The slope at B is....
The slope is small and positive at point B
113
What are these things?
Ball Bearings
114
Slope at E is....
Zero
115
m/s - North
Is a unit of?
Velocity
116
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
117
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
118
In linear motion, how will we show the direction an object is travelling?
With a "+" sign or a "-" sign.
The plus would mean one direction, and the minus would mean in the exact opposite direction.
119
Describe the velocity at A.
Large Negative Velocity
120
A letter written smaller and below the rest of the writing.
*vt*
Here the " *t* " is subscripted
Subscript
121
Interaction
When two objecst have an effect upon each other.
122
In order to describe the velocity of an object, you must always refer to a ___________ \_\_\_\_\_\_\_\_\_\_\_\_\_.
reference object
123
Position at clock reading = zero
*x*0
124
newton
Is a unit of?
Force
125
Describe the motion of the object at D
At D, the object is moving quite fast in the negative direction.
126
Describe the Slope
Contant zero slope
127
Slope or Steepness at A is.....
The slope at A is large and negative
128
Force
Vector Quantity or not?
Vector
50 newtons downward has both magnitude (50) and direction (downward).
So, its a vector or vector quantity.
129
Describe the slope of this graph.
The slope starts out medium and positive and is fairly constant.
Then, the slope rapidly decreases to zero and then becomes increasingly negative.
At the end, the slope is medium, constant and negative.
130
What quantity is this device used to measure?
Mass
(Note, mass is different than weight)
Scales measure weight
Balances measure mass
131
Average Speed
A **_single speed_** that can be used to represent an object's speed during a period of time, even if the object is changing speeds.
132
Sliding Fricition means...
The force of friction impeding the motion of an object sliding across a surface.
133
"mm/yr" is a unit of
Speed
(Units of speed will always have a distance over a time)
134
*d*
the symbol for distance
135
All of the red lines are ____________ to the red curve.
"Normal"
136
Describe the slope at point D
Small positive slope
137
Describe the steepness or slope at A
Zero
138
In motion along a line, what is the difference between the following two "velocities?"
**17 m/s**
**-17 m/s**
The objects are traveling at the same speed, but in opposite directions.
In linear motion, we can use plus and minus to represent different directions.
139
What can this tell you about mass and weight?
The Earth's gravity applies a force of
9.8-Newtons to a 1-kg mass
140
Describe the slope
Negative Slope
Decreasing Slope
(We say the slope is "decreasing" when the "hill" is getting less steep.)
141
The size of the force of air friction is dependant upon
\_\_\_\_\_\_\_\_\_\_\_\_\_\_
and
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
The size and shape of an object
and
The speed at which the object is moving relative to the air.
142
143
In a motion graph, how do we decide which variable to put on the horizontal axis?
"Time"
Always goes on the horizontal axis for motion graphs in Mr. Bixel's physical science class.
144
Describe the Slope
The slope is constant and it is zero.
145
Acceleration
That rate at which you change your velocity.
Example:
Every second, he was going 5mph faster than the second before.
146
The slope at B is....
The slope is small and positive at point B
147
The slope at D is....
Large and Negative
148
Describe the slope or steepness at A.
Zero
149
Describe the Slope
Zero
| (I guess its constant too)
150
This is called a
Motion Map
151
Slope at E is....
Zero
152
Which object is moving faster?
A car going +10 mph
A moped going - 10 mph
Neither.
They are both going the same speed, but in different directions.
153
Is the following a description of a distance or a displacement?
He travelled 20 miles North.
Displacement
(Magnitude = 20 miles)
(Direction = North)
154
Describe the Slope
Initially, the slope is large and positive. The slope then decreases until it is small and positive.
155
Velocity at A is ...
At A, the velocity is large and negative.
156
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
157
"Free Fall"
When the ***_ONLY_*** force acting upon an object is gravity.
This can be after an object is dropped.
It can also be after an object is thrown up.
It can even be after an object is thrown sideways.
In all these situations, the only force acting upon the object is gravity.
158
What quantity is this device used to measure?
Volume
159
True/False
The soccer ball shown in the picture is in "Free Fall."
True.
It doesn't matter if the ball is going up, down, or sideways. As long as the only force acting upon the ball is gravity, it is in "Free Fall."
160
Tell me about this object at point E.
It is now quite far from the reference point in the negative direction, but the object has come to a stop.
161
How would you describe the slope (steepness) at point A?
High Positive Slope
162
Gravity
A force between any two objects with mass
163
Describe the Slope
The slope is constant and it is zero.
164
What word can be used in the exact same place as the word slope?
Steepness
165
Distance
Vector Quantity or not?
Not
25 meters does not have a direction.
No direction, not a vector.
166
Is "speed" a scaler or a vector?
It is a scaler. Speed has a magnitude (size) but no direction.
Example: 50 mph.
167
Electrical charges can apply a \_\_\_\_\_\_\_\_\_
Force
(Think of static electricity pulling a sock onto your shirt when you take them out of dryer.)
168
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
169
The slope at D is....
Large and Negative
170
*v*
the symbol for velocity
171
What is the formula for finding
**Average Speed**
172
Is velocity a vector or a scaler?
Velocity is a vector.
It has both magnitude (size) **_AND_** direction.
Example:
Her velocity was 30 mph north.
173
Slope or Steepness at A is.....
The slope at A is large and negative
174
The angle of a line on a graph
Slope
175
meter
Is a unit of?
Distance
176
Why hasn't Mr. Bixel written my assignments down on the Moodle calendar for the past few days?
Because, something is wrong with the server, and he does not have access to Moodle.
177
Describe the slope at point E.
Zero
178
Describe the slope at point E.
Zero
179
Mass and Weight mean ____________ things.
Different
180
"m/s North" is a unit of
Velocity
(notice that it has a direction included)
181
Velocity at clock reading = t
*vt*
182
As you go from A to D, the slope
Increases.
It goes from a slope of zero to a large negative slope.
183
Describe the steepness or slope at A
Zero
184
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
185
Describe the Slope
Starts with a small positive slope. The slope increases until it is medium and positive.
186
187
Compare slopes at C and D
Both are negative slopes
C has a higher slope
188
What word can be used in the exact same place as the word slope?
Steepness
189
miles East
Is a unit of?
Displacement
190
*v0*
Velocity at clock reading = zero
191
A force is a
Push or a Pull
192
Describe the Steepness
Medium, Constant, Negative Steepness
193
Distance
How far you have travelled.
194
Describe the Steepness
Constant Medium Positive Steepness (Slope)
195
In which direction would the net force be upon this object?
To the left.
196
the symbol for position
*x*
197
Describe the slope at point E.
Zero
198
The slope at B is....
The slope is small and positive at point B
199
Describe the steepness
Negative Steepness
Decreasing Steepness
(We say the slope is "decreasing" when the "hill" is getting less steep.)
200
Describe the slope at point D
Small positive slope
201
As you go from A to D, the slope
Increases.
It goes from a slope of zero to a large negative slope.
202
What would be the net force upon this object?
30 N to the right
203
Mass means pretty much the same thing as \_\_\_\_\_\_\_\_
Inertia
204
An object in motion will stay in motion in a straight line, forever, unless acted upon by an unbalanced force.
Half of Newton's First Law
205
Constant Speed
Not speeding up or slowing down
206
207
Time
Vector Quantity or not?
Not
3 seconds does not have a direction.
No direction, not a vector.
208
Velocity at A?
High Positive.
(Its a velocity graph!!!)
209
The slope at C is...
The slope at C is medium and positive
210
Describe position and velocity at pont A
The object is at the reference point and has not yet started to move.
211
A quantity that has both magnitude and direction.
Example:
Forces are vectors because if you push or pull on something, there is a **magnitude** (size) of your push, and there is always a direction of your push.
Vector
212
An object at rest will remain at rest unless acted upon by an unbalanced force
The other half of Newton's First Law
213
The slope at C is...
The slope at C is medium and positive
214
Describe the slope of this graph
Slope is positive and decreases all the way down to zero slope. Then, the slope becomes increasingly negative
215
"miles" is a unit of
distance
216
Velocity at clock reading = zero
*v0*
217
Inertia means almost the same thing as \_\_\_\_\_\_\_\_\_\_
Mass
218
Compare slopes at A and B
Both slopes are large and negative. A has a higher slope.
219
Describe the slope at point D
Small positive slope
220
You can reduce the friction between to sliding surfaces by coating the surfaces with a \_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Lubricant
(oil, grease. etc)
221
Position at clock reading = "t"
*xt*
222
30 meters is a **_distance_**, so its a **_scalar_** quantity.
If you add a direction so it reads
30 meters north, then it becomes
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ which is a \_\_\_\_\_\_\_\_\_\_\_\_\_\_
If you add a direction so it reads
## Footnote
30 meters north, then it becomes
**_displacement_** which is a **_vector_**.
223
Describe the motion of the object at D.
The object is slowing down, and has almost stopped. It is still moving slowly in the negative direction.
224
Magnetism can apply a \_\_\_\_\_\_\_\_\_\_
Force
225
Describe the Slope
Slope = Infinity
or
The slope is undefined.
226
Describe the velocity at D
At D, the object is moving quite fast and in the positive direction.
227
Describe the Slope
Starts with a small positive slope. The slope increases until it is medium and positive.
228
Two definitions of acceleration
Change in speed or direction
or
Change in Velociy
229
Describe the Slope of the Red Line
The slope is infinite.
Some may describe this as "undefined."
230
miles/hr - West
Is a unit of?
Velocity
231
If you took this thingy to the moon and looked at it, the mass would \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_?
Stay the same.
The 1-kg label on th object will still say 1-kg, and it will still be correct.
232
Describe the Slope
Slope = Infinity
or
The slope is undefined.
233
Describe the Slope or Steepness.
Medium, Positive, and Constant Slope or Steepness.
234
Velocity
## Footnote
Vector or Scaler?
Vector
235
*xt*
Position at clock reading = "t"
236
Describe the position of this object at point A.
HOGWASH!!!!!
This is a velocity graph. It tells me nothing about position!!!!!
237
Describe the slope or steepness at A.
Zero
238
Describe the Slope
The slope is zero
The slope is constant
239
240
Describe the slope at point D
Small positive slope
241
Normal
Perpendicular
242
Change in Momentum
Impulse
243
Compare slopes at C and D.
Slopes at C and D are both large and negative. The slope at D is larger.
244
Look carefully at the following graph. Does this show and object that is moving or standing still.
This shows an object that is moving at a very steady speed.
[![]()](http://s3.amazonaws.com/brainscape-prod/system/cm/002/046/089/q_image_card.png?1347224568)
(Make sure you understand why)
245
"m" is a unit of
distance
246
Speed
Vector Quantity or not?
Not
50 mph does not have a direction.
No direction, not a vector.
247
Distance
Vector or Scaler?
Scaler
| (Distance has magnitude only)
248
Velocity at C
Negative velocity
249
How can you determine the direction in which friction acts upon a moving object
Friction will act in the direction opposite of the motion of the object.
250
inch
Is a unit of?
Distance
251
Describe the steepness or slope at A
Zero
252
If objects in motion tend to stay in motion, forever, unless acted upon by a net force, why do we seem to always see objects slowing down on their own?
Friction
(This is the force usually slowing down objects, and it is hard to actually see where the friction is coming from)
253
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
254
What happens between B and C?
The object turns around.
(It was going in the negative direction, now it is going in the positive direction.
255
Describe the Slope or Steepness of this graph
Small, Positive and Constant
256
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
257
*t*
The symbol for time
258
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
259
Gravity can apply a \_\_\_\_\_\_\_\_\_\_\_
Force
260
Speed
## Footnote
Vector or Scaler?
Scaler
| (has only magnitude)
261
If you say a ball is 30 feet up, what would typically be your reference point.
The ground below the ball.
(The ball would be 30 feet away from the reference point or ground in this case)
262
What would be the net force upon this object?
10 Newtons to the left.
263
Describe the Slope
The slope of a vertical line is infinity
(Some would say the slope is "undefined")
264
In Newton's Third Law, which happens first, the action or the reaction.
Neither!
The "action" and "reaction" forces always happen at the exact same time.
265
The slope(steepness) at D is...
The slope at D is large and positive.
266
kilogram
Is a unit of?
Mass
267
Describe the Slope of this Graph
Positive and Increasing
268
Describe the position and velocity at point D.
The object is moving quite fast in the negative direction and is far from the reference point.
269
Describe the position at A
High positive position
270
Describe the Slope
The slope is medium, positive, and constant.
271
Describe the steepness
Negative Steepness
Decreasing Steepness
(We say the slope is "decreasing" when the "hill" is getting less steep.)
272
Describe the Slope of the Purple Line
Medium Positive Constant Slope
273
Describe the slope at point D
Small positive slope
274
Describe the velocity at A.
The velocity at A is large and positive.
(Check the Axes!!)
275
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
276
What is this object doing at point A?
This object is at the reference point and is moving quite fast in the negative direction.
277
Describe the slope or steepness at B
Small negative slope
278
As you go along the curve from A to E, the slope
Decreases
It goes from large negative to zero.
279
Reference object
An object that can be used as a reference for both position and for velocity.
280
Describe the slope at point E.
Zero
281
Describe the slope of this graph
positive and increasing
282
The word slope means \_\_\_\_\_\_\_\_\_\_\_\_\_\_
Steepness
283
The slope at B is....
The slope is small and positive at point B
284
As you go along the curve from A to E, the slope
Decreases
It goes from large negative to zero.
285
Slope or Steepness at A is.....
The slope at A is large and negative
286
Air Friction
The force impeding the motion of an object traveling through the air.
287
Describe the motion of the object at E.
The object is moving quite fast in the negative direction.
288
The slope at D is....
Large and Negative
289
As you go from A to E, the slope...
Decreases
290
Acceleration
Vector Quantity or not?
Vector
**- 5 m/s****2** has both magnitude (5) and direction (negative).
So, its a vector or vector quantity.
291
Describe the Slope
The slope is constant and zero
292
As you go from A to D, the slope
Increases.
It goes from a slope of zero to a large negative slope.
293
Instantaneous Speed
How fast an object is going at an instant in time. It is what is shown on the speedometer of a car.
294
What can this thingy tell you about weight?
Weight is a force.
295
The word slope means \_\_\_\_\_\_\_\_\_\_\_\_\_\_
Steepness
296
Net Force
The overall force acting upon an object.
297
Describe the overall motion of this object.
Starts at rest in a negative position. It speeds up in the positive direction and passes the reference point.
298
What quantity is this device used to measure?
Length
299
Describe the slope or steepness at A.
Zero
300
m/s2
Is a unit of?
Acceleration
301
The slope at C is...
The slope at C is medium and positive
302
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
303
What would happen to your weight if you left Earth and went to Jupiter?
Your weight would go up.
Jupiter has a much stronger gravitational field than the Earth. Weight is the pull of gravity upon an object.
304
What is this thing?
(scroll down and look at entire picture)
Your secret weapon to get 4 questions right on the upcoming test.
305
The word "static" means....
at rest
306
Describe the steepness of this graph
positive and increasing
307
the symbol for velocity
*v*
308
Normal Force means a force ___________ to a surface
Perpendicular
309
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
310
A point or exact location that can be used to help describe the location of some other point or object.
Reference Point
311
Compare slopes at C and D
Both are negative slopes
C has a higher slope
312
Describe the slope or steepness at B
Small negative slope
313
The slope(steepness) at D is...
The slope at D is large and positive.
314
"mm/yr East" is a unit of
Velocity
## Footnote
(notice that it has a direction included)
315
What is the formula for calculating momentum?
Momentum = Mass x Velocity
316
Slope = rise/run
The formula for calculating the slope of a line.
317
When we make a motion graph, what variable will ALWAYS be on the horizontal axis?
Time
(Even if time is the dependent variable, we will always put it on the horizontal axis in motion graphs.)
318
The force of gravity upon an object
weight
319
You walk all the way around a typical high school track. Its about 400 meters.
Your Distance = \_\_\_\_\_\_\_\_\_\_\_
Your Displacement = \_\_\_\_\_\_\_\_\_\_\_\_\_
Your Distance = \_\_\_\__400-m\_\_\_\_\_\_\__
Your Displacement = \_\_\_\__\_0-m\__\_\_\_\_\_\_\_
Distance is how far you travel.
Displacement is how far you end up from the starting point.
320
How would you describe the slope (steepness) at point A?
High Positive Slope
321
The slope at D is....
Large and Negative
322
How would you describe the slope (steepness) at point A?
High Positive Slope
323
Describe the Slope of this Graph
Positive and Increasing
324
Newton's Third Law
For every action, there is an equal and opposite reaction.
325
Describe the Slope
The slope is medium, positive, and constant.
326
Describe the velocity of the object at E.
At E, the object has stopped, so it has zero velocity.
327
Describe the Slope
The slope is constant and zero
328
What is secret # 4 for understanding these graphs
Secret #4
Just use the word "Steepness" instead of Slope when you write down your description o fthe graph.
Then, go back and erase the word "Steepness" and write in the word slope.
329
Another way to say perpendicular
Normal
330
In order to describe the position of an object, you must always refer to a ___________ \_\_\_\_\_\_\_\_\_\_\_\_\_.
Reference Point
(or reference object)
331
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
332
"days" is a unit of
333
"inches / day2" is a unit of
acceleration
## Footnote
(notice the the units on the bottom is **_days squared_**)
334
Mass
How much "stuff" there is in an object.
(or how much matter)
(each added atom or molecule adds mass)
335
acceleration / time graph
A motion graph with time on the horizontal axis and acceleration on the vertical axis.
336
Describe the Slope
Medium
Constant
Negative
337
The symbol for time
*t*
338
Compare slopes at C and D.
Slopes at C and D are both large and negative. The slope at D is larger.
339
Describe the slope or steepness at A.
Zero
340
If all the forces on an object are balanced, then there is no net force. In this case, we say the object is in \_\_\_\_\_\_\_\_\_\_\_\_
**Equilibrium**
341
That rate at which you change your velocity.
Example:
Every second, he was going 5mph faster than the second before.
Acceleration
342
Slope at E is....
Zero
343
Position
The location of an object in relation to some "reference point"
344
Describe the Slope of the Purple Line
Medium Positive Constant Slope
345
Describe the slope
Initial large positive slope.
Slope
346
You are about to go outside to take measurements necessary to calculate your top running speed. What measurments would you need to take.
Distance
and
Time
(because S = d/t )
347
Another way of saying that someone is accelerating in such a fashion that each second they were going 7 meters per second faster than the second before?
Acceleration = (7 m/s) / s
or
7m/s2
348
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
349
Compare slopes at C and D.
Slopes at C and D are both large and negative. The slope at D is larger.
350
Compare slopes at C and D
Both are negative slopes
C has a higher slope
351
Describe the Steepness
Constant Medium Positive Steepness (Slope)
352
m / s2 is a unit of
acceleration
(notice the the units on the bottom is seconds _squared_)
353
Describe the Slope
Zero
| (I guess its constant too)
354
Slope or Steepness at A is.....
The slope at A is large and negative
355
As you go along the curve from A to E, the slope
Decreases
It goes from large negative to zero.
356
Describe the Slope
Medium
Constant
Negative
357
kg m/sec
Is a unit of?
Momentum
358
Vector
A quantity that has both magnitude and direction.
Example:
Forces are vectors because if you push or pull on something, there is a **magnitude** (size) of your push, and there is always a direction of your push.
359
Describe the slope
The graph starts with a large positive slope. The slope decreases to zero. Then, the slope becomes increasingly negative.
360
Subscript
A letter written smaller and below the rest of the writing.
*vt*
Here the " *t* " is subscripted
361
Which object is moving the fastest?
A
The steepest line on a position/time graph represent the fastest moving object.
(A is moving the opposite direction from B and D)
362
What would happen to your mass if you left Earth and went to Jupiter?
Nothing.
Mass is a measure of how much "stuff" or matter there is in an object.
363
Describe Slope at C
Slope at C is medium and negative
364
Slope or Steepness at A is.....
The slope at A is large and negative
365
366
Describe the velocity of the object at A.
The velocity of the object at point A is zero.
367
Describe the slope
Initial large positive slope.
Slope
368
Compare slopes at C and D
Both are negative slopes
C has a higher slope
369
Slope
The angle of a line on a graph
370
Describe the general motion of this object.
This object starts out "at rest." It then gradually picks up speed as it passes the reference point moving in the negative direction.
371
Describe the slope or steepness at B
Small negative slope
372
Describe the velocity at E
Velocity at E is zero.
(the slope of a position/time graph **IS** the velocity)
373
In linear motion, the "+" and the "-" symbols are used to show what?
Direction
374
Slope at E is....
Zero
375
Describe Slope at C
Slope at C is medium and negative
376
When we refer to the "trace" on a graph, we are talking about ...
The best fit line or curve on the graph.
377
Compare slopes at C and D
Both are negative slopes
C has a higher slope
378
As you go along the curve from A to D, the slope...
Becomes increasingly positive.
379
Kinematics
The study of motion
380
Tension
A force exerted by a string or rope.
381
How would you describe the slope (steepness) at point A?
High Positive Slope
382
As you go from A to D, the slope
Increases.
It goes from a slope of zero to a large negative slope.
383
"miles North" is a unit of
Displacement
(Displacement is a vector, so it has both magintude and direction.)
384
Describe the Slope
The slope of a vertical line is infinity
(Some would say the slope is "undefined")
385
The formula for calculating the slope of a line.
Slope = rise/run
386
The slope at B is....
The slope is small and positive at point B
387
Describe the position at point A
At point A, the object is:
* Far from the reference point.
* In a negative position
388
Describe the Slope
The graph starts with a small positive slope. The slope increases until point "c" Then the slope begins to decrease.
The slope is positive at all times in this graph.
389
Describe Slope at C
Slope at C is medium and negative
390
Definition of Weight
The force of gravity upon an object.
391
*vt*
Velocity at clock reading = t
392
If there is no air friction, which would experience a greater acceleration when dropped off a cliff, a large rock or a small rock?
Neither, both would accelerate at the same rate, and both would reach the ground at the same time.
393
Describe the slope at point E.
Zero
394
Magnitude
How big something is.
395
Describe the Slope
Zero
396
True or False
This motorcycle rider is in "Free Fall."
True.
Once he goes off the jump, the only force acting upon him is the force of gravity. (Until he lands of course)
397
Describe the Slope
The slope is zero
The slope is constant
398
Position/Time graph
A motion graph with "time" on the horizontal axis and "position" on the vertical axis.
This graph shows the motion of 4 objects.
399
Describe the Slope
Initially, the slope is large and positive. The slope then decreases until it is small and positive.
400
Describe the Slope of the Blue Line
Constant Slope of Zero
401
Describe the general motion of this object over the period of time graphed.
This object starts with a very high initial positve velocity, and a negative position. It slows down as it passes the reference point and eventually comes to rest at point E.
402
If a graph has a positive steepness, how would you describe the slope
The graph has positive slope.
(Just replace the word steepness with slope)
403
The slope(steepness) at D is...
The slope at D is large and positive.
404
Compare the slope of the line at points A and B.
Both have a high positive slope, but A has the highest slope.
405
Formula for finding Weight
Weight = ___________ x \_\_\_\_\_\_\_\_\_\_\_\_
Weight = mass x gravity
406
If an object is experiencing an unbalanced force, we know that the _________ \_\_\_\_\_\_\_\_\_\_\_\_\_ is not zero.
Net Force
407
Is **_displacement_** a vector or a scalar?
Displacement is a vector. It has both magnitude and a direction.
408
Describe the steepness or slope at A
Zero
409
miles/hr
Is a unit of?
Speed
410
Describe the slope or steepness at A.
Zero
411
Another way of saying that someone is accelerating in such a fashion that each second they were going 8 mph faster than the second before?
Acceleration = (8 mph) / second
412
Describe the steepness of this graph
positive and increasing
413
True/False
This fighter jet is in "Free Fall."
False.
This fighter jet has more forces acting upon it than just gravity. It is experiencing the following forces:
* Gravity
* "Lift" (from the air on the wings)
* "Thrust" (generated by the afterburners)
414
"cm/day" is a unit of
speed
(Units of speed will always have a distance over a time)
415
milliNewtons
Is a unit of?
Force
416
Speed
How fast an object is traveling.
| (Direction is not important)
417
Touch
Gravity
Friction
The three things we often think about when we are looking for forces.
418
If you took this thingy to the moon and looked at it, the weight would \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_?
Go down.
The moon has less gravity, so the red needle would only point to about 2.
419
Formula for acceleration
Accleration =
Acceleration = change in velocity/change in time
can also be written as:
a = Δv / Δt
420
Velocity at A
Zero
(remember, the slope of a position/time graph **IS** the velocity)
421
How fast an object is traveling.
| (Direction is not important)
Speed
422
How would you describe the slope (steepness) at point A?
High Positive Slope
423
As you go along the curve from A to E, the slope
Decreases
It goes from large negative to zero.
424
Pounds
Is a unit of?
Force
425
The location of an object in relation to some "reference point"
Position
426
As you go from A to E, the slope...
Decreases
427
The slope at D is....
Large and Negative
428
"cm/hr West" is a unit of
Velocity
## Footnote
(notice that it has a direction included)
429
Another name for Newton's First Law
Law of Inertia
430
The slope at B is....
The slope is small and positive at point B
431
What can you tell about this object at point A?
It is "at rest" and it is quite far from the reference point. Its position is negative.
432
433
The blue line could also be consider to be ______________ to the red surface
"Normal"
434
"cm West" is a unit of
435
Impulse
Change in Momentum
436
Describe the position at B.
Positive
437
What control or controls in a car is often used to cause the car to accelerate?
Gas Pedal
Brakes
Steering Wheel
(Remember, an acceleration can mean speeding up, slowing down, or turning)
438
How big something is.
Magnitude
439
Describe the slope or steepness at B
Small negative slope
440
"cm" is a unit of
distance
441
When you describe the velocity of a car, your typical reference object would be what?
The surface of the road beneath the car.
442
As you go from A to E, the slope...
Decreases
443
Compare slopes at A and B
Both slopes are large and negative. A has a higher slope.
444
A **_single speed_** that can be used to represent an object's speed during a period of time, even if the object is changing speeds.
Average Speed
445
Position at E is....
The position at E is almost zero
| (it is very slightly positive)
446
Describe the overall motion of this object.
Starts in a positive position with a high negative velocity. It passes the reference point while gradually slowing to a stop.
447
Newton's Second Law
A = F/M
(Acceleration = Force divided by Mass)
448
Describe the Slope
Slope = 0 at the start.
Abruptly changes to constant negative medium slope.
Abruptly changes back to a slope of zero.
449
Compare the slopes at points B and C
B has a high positive slope
C has a medium positive slope
450
The definition of "Displacement" is "how far you are from the reference point and in what direction."
Displacement can also often be thought of as:
How far you are from where you started. (and in what direction)
451
The slope at C is...
The slope at C is medium and positive
452
m/(s x s)
Is a unit of?
Acceleration
453
*x*0
Position at clock reading = zero
454
Describe the slope of this graph
positive and increasing
455
A quantity that has a magnitude (size) but no direction.
Examples:
Temperature. 78 degrees tells you how "big" the temperature is, but there is no direction to 78 degrees.
Scaler
456
Describe the velocity at point A
The velocity at point A is zero.
| (This is a velocity graph!)
457
The slope(steepness) at D is...
The slope at D is large and positive.
458
How would you describe the slope (steepness) at point A?
High Positive Slope
459
Velocity/Time graph
A motion graph with time on the horizontal axis and velocity on the vertical axis.
460
Describe the Slope
The graph has a Constant Large Negative Slope
461
Static Friction means
The force of friction preventing a motionless object from moving.
462
Describe Slope at C
Slope at C is medium and negative
463
Temperature
Vector Quantity or not?
Not
37 degrees does not have a direction.
No direction, not a vector.
464
As you go from A to D, the slope
Increases.
It goes from a slope of zero to a large negative slope.
465
Describe the slope of this graph.
The slope starts out medium and positive and is fairly constant.
Then, the slope rapidly decreases to zero and then becomes increasingly negative.
At the end, the slope is medium, constant and negative.
466
How does the slope at point C compare to the slope at point D?
Both are postive slopes, but C has a higher slope.
467
Describe the velocity at point E.
The velocity at point E is high and positive.
(Its a velocity graph!!!)
468
kiloNewtons
Is a unit of?
Force
469
Reference Point
A point or exact location that can be used to help describe the location of some other point or object.
470
What is meant by the acronym:
A.U.T.O.graph
When we look at graphs, we will always think about:
A - the axes
U - the units
T - the trace
O - the origin
471
What would be the net force upon this object?
100 Newtons upward
472
Describe the Slope
Slope = 0 at the start.
Abruptly changes to constant negative medium slope.
Abruptly changes back to a slope of zero.
473
Which object is not moving?
C
474
True or false.
This object is moving at a constant speed.
False
475
Slope at E is....
Zero
476
"in" is a unit of
distance
477
the symbol for distance
*d*
478
Describe the Slope of this Graph
Starts with medium positive slope.
Slope gradually increases until it is quite steep.
479
480
What is happening at point D
The object has reached quite a high positive velocity and is about to blow past the reference point.
481
Describe the Slope
Zero
482
Displacement
Vector or Scaler?
Vector
483
As you go along the curve from A to E, the slope
Decreases
It goes from large negative to zero.
484
Describe the slope or steepness at B
Small negative slope
485
What mathematical calculation would you do to determine the net force upon the skydiver shown here?
Net Force = (Force of Gravity) - (Force of Air Friction)
486
Is the following a description of a distance or a displacement?
He traveled 30 meters.
Distance
It has no direction, so it cannot be a displacement.
487
Describe the Slope
Constant
Medium
Positive
488
489
Compare slopes at A and B
Both slopes are large and negative. A has a higher slope.
490
How fast an object is going at an instant in time. It is what is shown on the speedometer of a car.
Instantaneous Speed
491
"Uniform Linear Motion"
is just a physicsy way of saying....
"Moving in a straight line at a steady speed."
