Chap 2 - 1DM Flashcards
(65 cards)
1
Q
xf
A
final position
1
Q
vy
A
velocity in y direction
1
Q
Instantaneous acceleration
A
The acceleration at a single instant in time.
2
Q
speed
A
how fast an object is travelling (independent of direction)
2
Q
dx
A
a really really small change in x
2
Q
A
2
Q
A
2
Q
A
4
Q
xo
A
position at time = 0
5
Q
A
6
Q
A
7
Q
uniform linear motion
A
traveling at a constant velocity (in a line)
8
Q
Linear Motion
A
Motion along a line
9
Q
instantaneous velocity
A
velocity at a single instant of time
10
Q
vx
A
velocity in x direction
11
Q
A
12
Q
Inclined plane
A
a flat surface that is on an angle.
13
Q
uniform motion
A
traveling at a constant velocity (in a line)
13
Q
A
14
Q
uniformly accelerated motion
A
motion with a constant acceleration
16
Q
A
16
Q
A
average acceleration
17
Q
A
18
Q
turning point
A
the point where an object changes direction. At this point, the instantaneous velocity will equal zero.
19
19
19
21
22
23
24
distance
How far you have travelled
25
the slope of a y/t graph is equal to the
velocity in the y direction
27
t
time
29
kinematics
The study of motion
30
32
the area under an v/t graph is equal to the
change in position
33
dy
a really really small change in y
34
36
The derivative of a sum is equal to the
sum of the derivatives
37
38
39
40
41
43
the slope of an x/t graph is equal to the
velocity in the x direction
44
45
dt
a really really small change in time
46
48
displacement
how far you are from where you started
49
50
52
The area under an a/t graph is equal to the
change in velocity
53
54
instantaneous acceleration
55
the derivative of x with respect to t
56
free fall
moving under the influence of one and only one force ... gravity
57
58
g
free fall acceleration
59
**"limit as** **delta t goes to zero"**
what happens when the change in time gets really, really small
60
Vector or Scaler?
VELOCITY
Velocity is a vector
61
Vector or Scaler
SPEED
Speed is a scaler
62
A ____________ contains both magnitude and direction.
vector
63
Constant Velocity
Traveling in such a fashion that you are not speeding up, slowing down, or turning.
64
Constant Speed
Traveling in such a fashion that you are not speeding up or slowing down.
(Turning would be allowed as long as you maintained your speed)
65
In both of our models so far,
(Constant Velocity and Uniform Linear Acceleration)
the direction of the force is...
Perfectly parallel to the direction of motion.
(Either in the same direction or in exactly the opposite direction)
