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Review of Physics

Total questions: 61

Worksheet time: 56mins

Name
Class
Date
1.

It's an example of vector quantity

a)

Distance

b)

Displacement

c)

Energy

d)

Mass

2.

Which one of these options is NOT a vector quantity

a)

Force

b)

Displacement

c)

Momentum

d)

Energy

3.

Vector F in the x-component is ....

a)

F sin 30o

b)

F cos 30o

c)

F sin 60o

d)

F tan 60o

4.

Vector F in the y-component is ....

a)

F sin 30o

b)

F cos 30o

c)

F cos 60o

d)

F tan 30o

5.
A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  
a)
40 metres, South
b)
50 metres, South
c)
50 metres, North
d)
40 metres, North 
6.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
7.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
8.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
9.

Instantaneous rate of change of displacement is a definition of

a)

Instantaneous velocity

b)

Instantaneous acceleration

c)

Instantaneous displacement

d)

velocity

10.

Describe this graph

a)

constant acceleration

b)

constant deceleration

c)

object move to the left

d)

constant velocity

11.

How can we find distance traveled?

a)

calculate area under v-t graph

b)

calculate area under a-t graph

c)

calculate area under s-t graph

12.
When one object is travelling with a constant velocity, its acceleration will be 
a)
decreasing
b)
increasing
c)
constant
d)
zero
13.
The distance travelled by an object with a constant speed of 2 ms-1 in a time of 6 s is 
a)
3 m
b)
6 m
c)
9 m
d)
12 m
14.
A van has travelled 10 m in 2 seconds. If the acceleration was 2 ms-2, its initial velocity would be 
a)
0 m s-1
b)
3 m s-1
c)
5 m s-1
d)
6 m s-1
15.

A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?

a)

4.29 m/s3

b)

4.29 m/s2

c)

4.29 m/s1

d)

4.29 m/s

16.

If a ball is thrown downward at 30 m/s, what will its speed be at 4 s? (Assume no air resistance)

a)

40 m/s

b)

70 m/s

c)

50 ms

d)

10 m/s

17.
If you drop a ball from the top of a building, how fast will it be moving after 6 seconds?
a)
10 m/s
b)
10 m/s/s
c)
60 m/s
d)
60 m/s/s
18.

An object free falls for 3.5 seconds. How far does it fall?

a)

120.05 m

b)

17.15 m

c)

60.03 m

d)

34.3 m

19.

Which of the dot diagrams best describe the motion of a free-falling object that is dropped from rest?

a)

Diagram A

b)

Diagram B

c)

Diagram C

20.

At what point is vy= 0 m/s?

a)

A

b)

B

c)

C

d)

D

e)

None of these points

21.

At what point is vx= 0 m/s?

a)

A

b)

B

c)

C

d)

D

e)

None of these points

22.

In the absence of air resistance, the angle at which a thrown ball will go the farthest is?

a)

90°

b)

30°

c)

60°

d)

45°

23.

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

a)

0s

b)

1s

c)

3s

d)

4s

24.

The path followed by a projectile is also known as its

a)

trajectory

b)

range

c)

height

d)

vertical displacement

25.

A force is ____.

a)

a push or pull that can cause movement

b)

a magnet

c)

when someone does not work

26.

Work is _____.

a)

using force to move an object

b)

when a magnet attracts metals

c)

not doing homework

27.
What type of force is shown in the picture?
a)
The Cat force
b)
Star Wars Force
c)
Unbalanced force
d)
Balanced  force
28.

A 50-kg crate is pushed with a horizontal acceleration of 20 m/s2. What net force is acting on the crate?

a)

2.5 N

b)

0.4 N

c)

1000 N

d)

30 N

29.

A 20-N net force acts on an object with a mass of 2.0 kg. What is the object's acceleration?

a)

10 m/s2

b)

0.1 m/s2

c)

40 m/s2

d)

22 m/s2

30.

A 10-kg crate is pushed across a frictionless surface with a force of 30 N. What is its acceleration?

a)

300 m/s2

b)

3 m/s2

c)

20 m/s2

d)

0.33 m/s2

31.

(Using Fnet=ma), What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg?

a)

6,000 N

b)

1,500 N

c)

3,002 N

d)

2,998 N

32.

The acceleration of an object is proportional to...

a)

the net force acting on it

b)

its displacement

c)

its velocity

d)

its mass

33.

Two objects experience an the amount of net force. However, object A is twice as massive as object B. How do their accelerations compare?

a)

Object A and Object B will have the same acceleration

b)

Object A will have a greater acceleration that Object B.

c)

Object B will have a greater acceleration that Object A.

d)

Neither object will accelerate.

34.

Which inclined plane requires the most effort to push the ball to the top?

a)
b)
c)
d)
35.

Energy is

a)

how fast you do something.

b)

the ability to do work.

c)

confusing.

d)

how fast you lift something.

36.

If you use 30 J of energy to move an object, you have done ____ J of work.

a)

3

b)

10

c)

30

d)

0

37.

You push a crate with a force of 100 N for 5 meters. How much work did you do?

a)

500 J

b)

100 J

c)

50 J

d)

5 J

38.

How much power was generated from 0-4 seconds?

a)

1100 W

b)

4 W

c)

267 W

d)

1600 W

39.

How much work is done?

a)

9 J

b)

18 J

c)

27 J

d)

36 J

40.

If it took 9 seconds for the object to move 6 meters, what's the power?

a)

81 W

b)

27 W

c)

3 W

d)

6 W

41.

The unit for work (aka Newton-meter)

a)

Watt

b)

Power

c)

Work

d)

Joule

42.

________________ is the rate at which work is done.

a)

Power

b)

Work

c)

Time

d)

Energy

43.

The unit of power (aka Joule per second)

a)

Joule

b)

Minute

c)

Watt

d)

Pound

44.

Energy that is stored and held in readiness

a)

Kinetic

b)

Mechanical

c)

Work

d)

Potential

45.

Kinetic energy is the energy of ___________.

a)

Distance

b)

Motion

c)

Work

d)

Roman

46.

What is the formula for work?

a)

F = M(A)

b)

KE = 1/2M (V)2

c)

W = F(D)

d)

Power = W/T

47.

If there is no friction on this track, at which point would the coaster have the most kinetic energy?

a)

A

b)

B

c)

C

d)

D

48.

How high up is a 3200-kg plane if it has 960000 J of potential energy?

a)

10 m

b)

30 m

c)

307200000 m

d)

300 m

49.
Harry Potter waved his .23 m wand with .069 Nm of torque. How much force did Harry apply to rotate his wand?
a)
.4
b)
.5
c)
.3
d)
.16
50.
Which represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
51.
Which of the following depict the speed of the blowing ball?
a)
A
b)
B
c)
C
d)
D
52.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?
a)
9
b)
18
c)
72
d)
144
53.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if one of the masses were doubled?
a)
9
b)
18
c)
72
d)
144
54.

moving or tending to move toward a center...

a)

centripetal force

b)

centrifugal force

c)

Tangent

d)

Curvature

55.

Which bucket has more inertia?

a)

The bucket on the left because it has less mass

b)

The bucket on the right because it has more mass

c)

They have the same inertia

d)

The bucket on the right because it has less mass

56.
Where is the net force when the rollercoaster is at the top of the loop?
a)
Towards the sky
b)
Towards the Right
c)
Towards the left
d)
Towards the ground
57.

What is happening to the ice skater?

a)

Decreased Angular velocity, decreased rotational inertia

b)

Decreased Angular velocity, increased rotational inertia

c)

Increased Angular velocity, increased rotational inertia

d)

Increased Angular velocity, decreased rotational inertia

58.

Find the angular momentum for a 5 kg solid cylinder with a 20 cm radius rotating at 3 rad/s.

a)

3000 kg-m2/sec

b)

0,3 kg-m2/sec

c)

0,6 kg-m2/sec

d)

1.2 kg-m2/sec

59.
A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
a)
9.6 rad/s/s
b)
4.8 rad/s/s
c)
3.1 rad/s/s
d)
1.6 rad/s/s
60.
A fan spins with a constant angular speed of 500 radians/second. How long will it take to cover an angle of 2π radians (one revolution)?
a)
0.013 s
b)
0.002 s
c)
76.9 s
d)
6.28 s
61.
A merry go round starts from rest, and reaches an angular speed of 2 radians/second in 3 seconds. What is its angular acceleration, and through what angle does it sweep in the 3 second time interval? 
a)
α = 3/2 rad/s2,   θ=27/4 rad
b)
α = 2/3 rad/s2, θ=3 rad
c)
α = 2/3 rad/s2, θ=6 rad
d)
α = 6 rad/s2, θ=27 rad

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