Kinematics

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55 Terms

1
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What is displacement

distance moved in a particular direction

2
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what is velocity

rate of change of displacement of an object

3
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what is acceleration

rate of change of velocity on object

4
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what does the gradient of a displacement - time graph give

velocity

5
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what does the sign of the gradient of a displacement - time graph mean

direction of velocity

6
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what does zero gradient mean on displacement - time graph mean

object is at rest

7
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what does a constant gradient on a displacement - time graph mean

object is moving at constant velocity

8
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what does a decreasing gradient on a displacement - time graph mean

object is decelerating

9
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what does an increasing gradient of a displacement - time graph mean

object is accelerating

10
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what does the gradient of a velocity - time graph give

acceleration

11
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what does the area under a velocity - time graph give

displacement

12
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what does zero gradient on a velocity - time graph give

object moving with constant velocity

13
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what does a constant gradient mean on a velocity - time graph give

zero acceleration

14
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what does a decreasing gradient of a velocity - time graph give

decreasing acceleration

15
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what does an increasing gradient of a velocity - time graph give

increasing acceleration

16
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what is the first step of finding the gradient of a curve

find the tangent

17
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what is kinematics about

describing the motion of objects but not the cause

18
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how do you find an area under the curve

using geometrical shapes to estimate the area

19
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what is a scalar quantity

A physical quantity that has only magnitude

20
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what is a vector quantity

A physical quantity that has both magnitude and direction.

21
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<p>what is this graph showing?</p>

what is this graph showing?

constant velocity

22
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<p>what is this graph showing </p>

what is this graph showing

decreasing velocity

23
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<p>what is this graph showing </p>

what is this graph showing

non-constant accelerating velocity

24
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<p>what is this graph showing</p>

what is this graph showing

zero acceleration

25
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<p>what is this graph showing </p>

what is this graph showing

constant acceleration

26
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<p>what is this graph showing </p>

what is this graph showing

increasing acceleration

27
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<p>what is the answer</p>

what is the answer

B

28
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<p>what is the answer</p>

what is the answer

C

29
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<p>what is the answer</p>

what is the answer

B

30
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<p>what is the answer</p>

what is the answer

A

31
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<p>what is the answer</p>

what is the answer

A

32
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<p>what is the answer</p>

what is the answer

A

33
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<p>what is the answer</p>

what is the answer

A

34
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<p>what is the answer </p>

what is the answer

A

35
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<p>what is the answer</p>

what is the answer

A

36
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<p>what is the answer </p>

what is the answer

C

37
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<p>what is the answer </p>

what is the answer

D

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<p>what is the answer </p>

what is the answer

D

39
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<p>what is the answer </p>

what is the answer

A

40
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<p>what is the answer </p>

what is the answer

B

41
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<p>what is the answer </p>

what is the answer

D

42
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<p>what is the answer</p>

what is the answer

D

43
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<p>what is the answer </p>

what is the answer

D

44
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<p>what is the answer </p>

what is the answer

C

45
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<p>what is the answer</p>

what is the answer

B

46
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<p>what is the answer </p>

what is the answer

B

47
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<p>what is the answer </p>

what is the answer

A

48
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<p>what is the answer</p>

what is the answer

A

49
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how do you calculate speed

distance / time

50
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what is the unit for speed

ms ^-1

51
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how do you define speed

distance moved along the path divided by the time taken

52
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what is relative speed

speed of an object as observed from the perspective of another moving object

53
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how do you calculate relative speed in the same direction

v1 - v2

54
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how do you calculate relative speed in the opposite direction

v1 + v2

55
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how do you calculate velocity

displacement / time