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Savvas Physical Sci Unit 3 Energy, Motion, Force, and Work

Total questions: 115

Worksheet time: 2hrs 44mins

Name
Class
Date
1.

A push or a pull are examples of

a)

force

b)

motion

c)

weight

d)

mass

2.
If I kick a soccer ball across the field, what vocabulary word tells me why the ball would slow down in the grass?
a)
acceleration
b)
friction
c)
gravity
3.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
4.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
5.

The change in a objects position is________.

a)

Force

b)

Motion

c)

Reaction

d)

Movement

6.
This game of tug of war is an example of _________ forces. 
a)
unbalanced
b)
balanced
c)
potential
d)
net zero
7.

This motion graph represents:

a)

constant speed

b)

acceleration

c)

object at rest

d)

slowing down

8.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
9.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
10.

If the net force is 0 the object will ...

a)

CHANGE its motion

b)

STAY the SAME, NOT Move

11.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
12.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
13.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
14.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
15.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
16.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
17.

An Orange falls off a tree and lands on the ground. What force caused the orange to fall?

a)

friction

b)

heat

c)

gravity

d)

wind

18.

The support force exerted upon an object that is in contact with another stable object.

a)

Gravity

b)

Electrical Force

c)

Normal Force

19.

A force exerted by a compressed or stretched spring upon any object that is attached to it.

a)

Spring Force

b)

Tension Force

c)

Elastic Force

20.

The force that is transmitted through a string, rope, cable or wire when it is pulled tight.

a)

Spring Force

b)

Tension Force

c)

Elastic Force

21.

The ability to do work or cause change:

a)

work

b)

energy

c)

momentum

d)

power

22.

Energy in the form of motion.

a)

mechanical energy

b)

potential energy

c)

kinetic energy

d)

momentum

23.

Stored energy in the form of position or condition.

a)

potential energy

b)

kinetic energy

c)

momentum

d)

mechanical energy

24.

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

a)

12 J

b)

8 J

c)

20 J

d)

5 J

25.

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

a)

18 m

b)

4 m

c)

10 m

d)

6 m

26.

What is mechanical energy?

a)

total kinetic energy

b)

the energy of motion

c)

total kinetic and potential energy

d)

temperature plus heat

27.

Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?

a)

100 watts

b)

400 watts

c)

104 watts

d)

50 watts

28.

If a 1300-kg car has been lifted so it has 19500 J of potential energy, it was lifted up ---.

a)

1.5 m

b)

150 m

c)

15 m

d)

0.67 m

29.

What is the potential energy of a 3kg ball that is on the ground?

a)

0 J

b)

3 J

c)

9.8 J

d)

29.4 J

30.

If the mass of the cart is 15kg, how much is the potential energy of the cart?

a)

0J

b)

1.2J

c)

6J

d)

58.8J

31.

If the mass of the cart is 8.12kg, what is the kinetic energy of the cart?

a)

0J

b)

1.2J

c)

6J

d)

58.8J

32.

Which is the correct unit for work?

a)

Joules

b)

Newton

c)

meter

d)

Watts

33.

Newtons are the correct unit for which of the following?

a)

Force

b)

Work

c)

Power

d)

Acceleration

34.

What is the correct unit for power?

a)

Watt

b)

Joules

c)

Newtons

d)

seconds

35.

It took 50 Joules to push a chair 5 meters across the floor. With what force was the chair pushed?

a)

10 N

b)

0.1 N

c)

250 N

d)

1 N

36.

What is the power of a kitchen blender if it can perform 3,750 Joules of work in 15 seconds?

a)

250 W

b)

0.004 W

c)

56,250 W

d)

25 W

37.

If a 100 N force acts on a 50 kg car, what will be the acceleration of the car?

a)

2 m/s2

b)

0.5 m/s2

c)

5,000 m/s2

d)

50 m/s

38.

A force of 100 Newtons was necessary to lift a rock. A total of 150 Joules of work was done. How far was the rock lifted?

a)

1.5 m

b)

0.4 m

c)

15,000 m

d)

15 in

39.

How much work is done using a 500-watt microwave oven for 1 minute? (Hint: Use seconds as the unit for time.)

a)

30,000 J

b)

500 J

c)

8.3 J

d)

0.12 J

40.

What is the force on a 2.4 kg skateboard accelerating at a rate of 2 m/s2?

a)

4.8 N

b)

1.2 N

c)

0.83 N

d)

2 N

41.

How much power is used if a force of 35 Newtons is used to push a box a distance of 10 meters in five seconds? (Hint: Solve for work first. This is a 2-step problem.)

a)

70 W

b)

3.5 W

c)

7 W

d)

350 J

42.

It took 500 Newtons of force to push a car four meters. How much work was done?

a)

2000 J

b)

125 J

c)

0.008 J

d)

500 J

43.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2. What is the mass of the object?

a)

50 g

b)

1250 g

c)

0.02 g

d)

25 g

44.

At which point is potential energy greatest?

a)

W

b)

X

c)

Y

d)

Z

45.

What kind of energy is stored energy?

a)

Potential

b)

Kinetic

c)

None of the above

d)

All of the above

46.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

same

47.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
48.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
49.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
50.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
51.
What kind of energy is in a person climbing a ladder?
a)
Potential
b)
Kinetic
c)
Both
52.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
53.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
54.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
d)
leaves rolling down a hill 
55.
Click to look at the picture. 
The picture is an example of _____ .
a)
gravity
b)
potential energy
c)
kinetic energy
d)
friction
56.
Click to look at the picture.
The picture is demonstrating an example of ______ . 
a)
gravity
b)
speed
c)
kinetic energy
d)
potential energy
57.

Potential energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Speed

d)

Friction

58.

Which point has the most potential energy?

a)

G

b)

F

c)

B

d)

A

59.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

60.

__________ is stored energy.

a)

Potential

b)

Kinetic

61.

Holding a marble at the top of a ramp

a)

Potential

b)

Kinetic

62.

A slinky moving down a set of stairs

a)

Potential Energy

b)

Kinetic Energy

63.

A boy standing on top of a slide

a)

Potential Energy

b)

Kinetic Energy

64.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
65.
A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?
a)
43982.4 J
b)
63982.3 J
c)
43962.4 J
d)
83942.4 J
66.
A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?
a)
65.35 J
b)
87.25 J
c)
23.45 J
d)
65.25 J
67.
A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?
a)
65.35 J
b)
87.25 J
c)
23.45 J
d)
65.25 J
68.
2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
a)
1
b)
2
c)
3
d)
4
69.

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv2)

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

70.

Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball? (KE = 1/2mv2)

a)

567 J

b)

900 J

c)

945 J

d)

30 J

71.

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have? (KE = 1/2mv2)

a)

5.4 J

b)

1.8 J

c)

3 J

d)

6 J

72.

If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy? (KE = 1/2mv2)

a)

2.7

b)

5.4

c)

3.6

d)

9

73.

A 5 Kg body is having a Kinetic energy of 250 J. What is the velocity (or speed) of the body?

a)

10 m/s

b)

15 m/s

c)

20 m/s

d)

40 m/s

74.

What is the mass of a ball that has a kinetic energy of 115 J and is traveling at a speed of 9 m/s?

a)

1035 kg

b)

23.5 kg

c)

12.8 kg

d)

2.84 kg

75.

A exercise ball is on a table 2.5 m above the ground. What is the mass of the ball if it has a GPE of 56.8 J?

a)

71 kg

b)

22.72 kg

c)

142 kg

d)

2.32 kg

76.

What kind of energy does a marble at the top of a hill have?

a)

gravitational potential

b)

chemical potential

c)

kinetic

d)

thermal

77.

If the marble had a mass of 0.3kg and the hill was 2.3 m tall, how much potential energy did it have at the top of the ramp?

a)

2.3 J

b)

0.23 J

c)

6.9 J

d)

5.2 J

78.

What is the correct unit for energy?

a)

meters (m)

b)

kilogram meters per second (kg m/s)

c)

Newtons (N)

d)

Joules (J)

79.

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?

a)

5.4 J

b)

1.8 J

c)

3 J

d)

6 J

80.

What does conservation of energy mean?

a)

Total energy increases

b)

Total energy decreases

c)

Total energy in the universe stays the same

81.

If the marble had 6.9 J of (potential) energy at the top of the hill and 5.4 J of (kinetic) energy at the bottom of the hill, was energy conserved and why?

a)

No because total energy in the universe decreased

b)

Yes because the total energy in the universe changed

c)

Yes because the total energy in the system stayed the same

d)

Yes, but energy left the system

82.

If the marble hits a basketball which makes the tennis ball roll across the lab table, what kind of energy transfer happened?

a)

kinetic-potential

b)

kinetic-kinetic

c)

kinetic-electrical

d)

kinetic-thermal

83.

If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy?

a)

2.7

b)

5.4

c)

3.6

d)

9

84.

What does conservation of energy mean?

a)

Total energy increases

b)

Total energy decreases

c)

Total energy stays the same

85.

The marble had 5.4 J of kinetic energy and then hit the stationary basketball. The basketball started rolling and the marble stopped rolling. The rolling basketball now has 5.4 J of kinetic energy. Was energy conserved and why?

a)

Yes because the total energy stayed the same

b)

Yes because the total energy changed

c)

No because the total energy stayed the same

d)

No because the total energy changed

86.

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

a)

200 J

b)

20.0 J

c)

100 J

d)

10 J

87.

Factors that determine work are

a)

size of the force, the displacement, and the angle between the force and the displacement

b)

size of the force, and type of force

c)

mass, and displacement

88.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
89.

If you do 40 joules of work lifting a 10N box, how high is the shelf you moved it to.

a)

400m

b)

40m

c)

50m

d)

4m

90.

What is the connection between work and energy

a)

There is no connection between work and energy

b)

The energy in a system (Em) stays the same UNLESS work is done to add or remove energy from the system

c)

Work always adds energy to a system

d)

Work always removes energy from a system

91.

The original amount of mechanical energy in a system was 100 J, the final amount of mechanical energy was 50 J, how much work was done to the system

a)

+50 J of work

b)

-50 J of work

c)

no work was done

d)

it is impossible to say

92.

Explain why a frictional force will remove energy from a system... (more than one answer possible)

a)

friction exerts a force in the opposite direction of the displacement and cos (180) = -1

b)

there is no explanation

c)

Energy is removed from the system

d)

friction is a force that opposes displacement and therefore removes energy from the system

93.

An 86 kg boulder rests at the top of a 90 m cliff and falls to the bottom, how much energy leaves the system as heat and sound?

a)

77,400 J

b)

It is impossible to determine

c)

7486 J

d)

95,000 J

94.

On the Giant Drop at Six Flags, the mass of one of the carts plus the passengers is 1200 kg. The height of the tower is 115 m tall, how fast are the passengers going right before they stop?

a)

155 m/s

b)

1200 m/s

c)

1380000 m/s

95.

how high up was an object that is 8 kg, if right before it hit the ground it had a velocity of 18 m/s?

a)

16.2 m

b)

28 m

c)

1296 m

d)

impossible to determine

96.

What is an example of Electric Energy

a)

Apple

b)

Rubber Bands

c)

Car Battery

d)

Table

97.

Which statement is true?

a)

Oranges contain Elastic Energy

b)

Food contains Chemical Energy

c)

Phone on the table doesn't contain Gravitational Energy

d)

Radiator contains Nuclear Energy

98.

What type(s) of energy does a fridge contain?

a)

Sound Energy

b)

Thermal Energy

c)

Mechanical Energy

d)

All of the above

99.

Which type of energy does a TV remote have while turning on the TV?

a)

Thermal Energy

b)

Gravitational Energy

c)

Radiant Energy

d)

Sound Energy

100.

How many types of energy are there?

a)

5

b)

6

c)

7

d)

8+

101.

What is the definition of Elastic Energy?

a)

Energy stored in the nucleus of the atoms hold the nucleus together

b)

Energy stored in an object by the application of force

c)

Movement of objects or substances from one place to another

d)

The energy an object or substance has because of its position up high

102.

Which is Potential Energy?

a)

Radiant Energy

b)

Mechanical Energy

c)

Chemical Energy

d)

Sound Energy

103.

Heat Energy is called:

a)

Radiant Energy

b)

Chemical Energy

c)

Thermal Energy

d)

Mechanical Energy

104.

Which 2 types of energy does the object in the image use?

a)

Electric and Thermal

b)

Nuclear and Elastic

c)

Chemical and Mechanical

d)

Sound and Elastic

105.

Which is Kinetic Energy?

a)

Gravitational Energy

b)

Thermal Energy

c)

Elastic Energy

d)

Nuclear Energy

106.

When a baseball bat makes contact with a baseball, _____________ energy is transferred

a)

Kinetic

b)

Gravitational potential

c)

Elastic potential

d)

Sound

107.

Watching the Simpsons on TV at night before dinner is an example of an energy transformation. It is as follows:

a)

Light -> Sound -> Heat

b)

Electrical -> Light -> Sound

c)

Electrical -> Light -> Sound -> Heat

d)

Electrical -> Electrical

108.

A candle burning is a type of energy transformation. It is chemical energy transformed into _________ and __________ energy.

a)

Light, kinetic

b)

Heat, light

c)

Heat, chemical

d)

Kinetic, solar

109.

An energy transfer is

a)

The changing of energy from one form of energy to another form of energy

b)

The changing of energy from gravitational potential to kinetic

c)

The changing of energy from electrical to any other form

d)

The passing of energy from one object to another object

110.

An energy transformation is

a)

The changing of energy from one form of energy to another form of energy

b)

The changing of energy from gravitational potential to kinetic

c)

The changing of energy from electrical to any other form

d)

The passing of energy from one object to another object

111.

The energy in of a match is:

___________

The energy out of a match is:

Heat, light, sound

a)

Kinetic

b)

Electrical

c)

Chemical potential

d)

Mechanical

112.

The energy transformation that takes place when something burns is

a)

Chemical -> Kinetic

b)

Chemical -> Heat

c)

Electrical -> Heat

d)

Mechanical -> Heat

113.

You're cooking a BBQ for the AFL grand final to celebrate with your friends. What energy transformation occurs when cooking your meat?

a)

Chemical potential -> Heat

b)

Heat -> Chemical potential

c)

Chemical potential -> Kinetic

d)

Heat -> Light

114.

A car driving involves multiple energy transformations. The wasted energy is

a)

Heat

b)

Sound

c)

Light

d)

Chemical potential

115.

The energy transformation of a Bunsen Burner is:

Chemical potential -> _______ , ________ , ________

a)

Heat, electrical, light

b)

Heat, kinetic, sound

c)

Heat, light, sound

d)

Heat, light, kinetic

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