kinematics

Question 1

kinematics

Answer 1

the concepts needed to describe motion

Question 2

dynamics

Answer 2

the effect that forces have on motion

Question 3

scalar

Answer 3

quantities that only describe magnitude

Question 4

magnitude

Answer 4

how much there is of something

Question 5

vectors

Answer 5

quantities that describe both magnitude and direction

Question 6

is 5m scalar or vector?

Answer 6

scalar

Question 7

is 30m/s, east scalar or vector?

Answer 7

vector

Question 8

is distance scalar or vector?

Answer 8

scalar

Question 9

distance

Answer 9

refers to how total ground an object has covered

Question 10

is displacement scalar or vector?

Answer 10

vector

Question 11

displacement

Answer 11

refers to how far out of place and object is
-change in objects position

Question 12

average speed

Answer 12

distance/time
-scalar quantity
-(m/s)

Question 13

average velocity

Answer 13

displacement/time
-vector quantity
-(m/s)

Question 14

acceleration

Answer 14

when a change in velocity is combined with the time at which the change occurred

Question 15

5 kinematic variables

Answer 15

1. displacement (x)
2. acceleration (a)
3. final velocity (v)
4. initial velocity (v0)
5. time (t)

Question 16

when not given v0 or t0 assume?

Answer 16

0m/s and 0s

Question 17

y-axis on distance v. time graph

Answer 17

position(displacement) or distance (m)

Question 18

x-axis on distance v. time graph

Answer 18

time (s)

Question 19

on distance v. time graph slope =?

Answer 19

slope = velocity

Question 20

on a distance v. time graph the steeper the slope?

Answer 20

the faster velocity

Question 21

on a distance v. time graph when there is no slope?

Answer 21

velocity=0
staying still

Question 22

positive direction (d v t)

Answer 22

positive slope, moving away (right)

Question 23

negative direction (d v t)

Answer 23

negative slope, moving towards(left)

Question 24

constant velocity shown on a distance v. time graph

Answer 24

linear graph

Question 25

constant acceleration shown on a distance v. time graph

Answer 25

parabola

Question 26

constant velocity shown on velocity v. time graph

Answer 26

horizontal line

Question 27

constant acceleration shown on a velocity v. time graph

Answer 27

linear

Question 28

velocity changes when... (3 things)

Answer 28

1. an object speeds up 2. an object slows down 3. an object changes directions

Question 29

on a velocity v. time graph you can see an object is slowing down because...

Answer 29

it is headed towards the x-axis where velocity=0

Question 30

on velocity v. time graph how can you tell which direction the object is traveling?

Answer 30

if the line is above the x-axis it is traveling away from you (right) , if the line is under the x-axis it is traveling towards you(left)

Question 31

on a distance v. time graph how can you tell which direction the object is traveling?

Answer 31

positive slope= traveling away from you (right) negative slope= traveling towards you (left)

Question 32

When asked what object is ahead or their placement on a velocity v. time graph find the ______ of both and...

Answer 32

displacement of both and the larger displacement= the further away

Question 33

area under the curve on a velocity vs time graph gives you...

Answer 33

displacement

Question 34

area under the curve on an acceleration vs time graph gives you...

Answer 34

change in speed (final velocity)

Question 35

If constant speed is used use what formula...

Answer 35

m/s= m/t m/s= constant speed m= distance

Question 36

an object falling for twice the time will ___ times the distance

Answer 36

4

Question 37

displacement is proportional to

Answer 37

time squared

Question 38

with air resistance an object being thrown will have _____ acceleration throughout

Answer 38

the same

Question 39

free falling acceleration equals..

Answer 39

-9.8m/s2

Question 40

constant acceleration on a distance vs time graph of an object slowing down will be...

Answer 40

will be a parabola headed towards the x- axis ln ish

Question 41

when a distance vs time graph has a negative parabola that means...

Answer 41

positive acceleration in a negative direction

Question 42

+, +, + +, -, + +,+, - +,-,- -,+,+ -,-,+ -,+,- -,-,- position, velocity, acceleration

Answer 42

right, away, speeding up right, towards, slowing down right, away, slowing down right, towards, speeding up left, towards, speeding up left, away, slowing down left, toward, slowing down left, away, speeding up

Question 43

when velocity and acceleration have different signs the object is

Answer 43

slowing down

Question 44

when velocity and acceleration have the same sign the object is

Answer 44

speeding up