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Modupe Energy and Power

Total questions: 143

Worksheet time: 3hrs 16mins

Name
Class
Date
1.

_________ is the ability to do work

a)

Power

b)

Strength

c)

Energy

d)

Force

2.

Energy can neither be created nor destroyed.

a)

True

b)

False

3.

Which is energy in motion?

a)

Kinetic energy

b)

Potential energy

4.

Which one is energy at rest?

a)

Kinetc energy

b)

Potential energy

5.

Potential energy + Kinetic energy = ____________

a)

Chemical energy

b)

Electrical energy

c)

Mechanical energy

d)

Thermal energy

6.

Another word for "thermal energy" is ________________

a)

Solar energy

b)

Light energy

c)

Heat energy

d)

Electrical energy

7.

What form of energy is this?

a)

Electrical

b)

Mechanical

c)

Chemical

d)

Thermal

8.

What form of energy is at work here?

a)

Heat energy

b)

Chemical energy

c)

Mechanical energy

d)

Light energy

9.

which of the following is not an example of mechanical energy?

a)
b)
c)
d)
10.

We get __________________ energy from the radio.

a)

light

b)

sound

c)

chemical

d)

mechanical

11.

Which of these are sources of heat energy?

a)
b)
c)
d)
12.

What form of energy does a remote control use?

a)

Thermal energy

b)

Light energy

c)

Mechanical energy

d)

Electromagnetic energy

13.

What form of energy is stored in a battery?

a)

Chemical energy

b)

Light energy

c)

Mechanical energy

d)

Heat energy

14.

Which of the following is not a form of chemical (stored) energy?

a)
b)
c)
d)

All is correct

15.

Which is an example of electrical energy?

a)
b)
c)
d)
16.
The energy of moving particles
a)
heat
b)
thermal energy
c)
school
d)
temperature
17.
A force that occurs when one object rubs against another object
a)
Heat 
b)
Friction
c)
Solar Things
d)
Polar Eclipse 
18.
 Ryan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?
a)
sound energy
b)
electrical energy
c)
light energy
d)
heat energy
19.
Water will _________ when it gets cold enough, changing it from a LIQUID to a SOLID
a)
Melt
b)
Freeze
c)
Boil
20.
When a SOLID changes to a LIQUID, it
a)
Freezes
b)
Boils
c)
Melts
21.
When water is heated and CHANGES INTO A GAS it___________ 
a)
Boils
b)
Evaporates
c)
insulates
22.
Which situation is work not done?
a)
lifting a 20 pound box off the floor
b)
holding a 20 pound box above the floor
c)
sliding a 20 pound box across the floor
d)
sliding a 20 pound box up an inclined plane
23.

Kinetic energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

24.

Potential energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

25.

The SI Unit for Energy is

a)

Joule

b)

Newton

c)

Calorie

d)

Watt

26.
Energy of a rock perched on a cliff is an example of...
a)
gravitational
b)
elastic
c)
chemical
d)
kinetic
27.
Energy from a compressed spring would be an example of...
a)
kinetic
b)
elastic
c)
gravitational
d)
chemical
28.

Where is the kinetic energy of pendulum at its highest?

a)

at the top of the swing

b)

at the bottom of the swing

c)

at 1/4 of the swing

d)

at 3/4 of the swing

29.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
30.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
31.

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

32.

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

33.

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

a)

200 J

b)

80 J

c)

5 J

d)

2000 J

34.

At which point of this roller coaster is the energy 1/2 kinetic and 1/2 potential?

a)

A

b)

B

c)

C

d)

D

35.

Suppose a cart has a kinetic energy of 0.5 J. If you add enough mass to double the mass and make the cart go three times as fast, its kinetic energy is now ---.

a)

6 J

b)

3 J

c)

18 J

d)

9 J

36.

Two equal mass marbles are at the top of a ramp. One marble falls to the ground off the back while the other rolls down the ramp. What is true about the marbles when they reach the ground?

a)

The marble that rolled down the ramp is moving faster than the marble that fell.

b)

The marble that fell down the back of the ramp is moving faster than the marble that rolled.

c)

The marble that rolled down the ramp is not moving when it reaches the ground.

d)

The two marbles are moving with the same speed.

37.

A block starts at rest at point P at the top of a ramp which is height h above the ground. The block slides down one side and up the other, stopping at a point less than h above the ground. Which statement is TRUE?

a)

The block did not go as high on the other side because gravity pulls down.

b)

The block did not go as high on the other side because potential energy always has to decrease.

c)

The block did not go as high on the other side because work from friction made the mechanical energy less.

d)

The situation as described is impossible to happen.

38.

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

39.

Where is the roller coaster gaining potential energy?

a)

A to B

b)

B to C

c)

C to D

d)

The roller coaster is always losing potential energy

40.

A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs?

a)

400 J

b)

1200 J

c)

200 J

d)

120 J

41.

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

42.
Energy of a rock perched on a cliff is an example of...
a)
gravitational
b)
elastic
c)
chemical
d)
kinetic
43.
Energy from a compressed spring would be an example of...
a)
kinetic
b)
elastic
c)
gravitational
d)
chemical
44.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
45.

The SI unit of work

a)

Joules

b)

Watts

c)

Newtons

d)

meters

46.

The SI unit for power

a)

Watts

b)

Joules

c)

Newtons

d)

Meters

47.

Gravitational potential energy depends on the ________ and ________ of the object.

a)

Height and mass

b)

Spring constant and Distance away from equilibrium

c)

Mass and Velocity

d)

Height and Friction

48.

A student with a mass of 62 kg walks up a flight of stairs with a height of 3.4 meters. How can he decrease his power?

a)

walk slower

b)

walk faster

c)

carry his friends books

49.

A student with a mass of 62.0 kg walks up a flight of stairs with a height of 3.40 meters. If it takes him 7.00 seconds to get to the top, how much power did he generate?

a)

295 W

b)

2070 W

c)

86.8 W

d)

295.12 W

50.

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

a)

Height and Mass

b)

Spring constant and Distance away from equilibrium

c)

Mass and Velocity

d)

Height and Friction

51.

Definition: the transfer of energy that occurs when a force moves an object

a)

power

b)

energy

c)

work

d)

Efficiency

52.

If the amount of time to takes to move a box up the stairs decreases, what happens to power?

a)

decreases

b)

increases

c)

stays the same

53.

If the amount of time to takes to move a box up the stairs decreases, what happens to the amount of work?

a)

decreases

b)

increases

c)

stays the same

54.

Energy of Motion

a)

kinetic

b)

potential

c)

power

d)

efficiency

55.

When using a machine, what would you call the work done by the machine?

a)

work in

b)

work out

c)

distance in

d)

distance out

e)

efficiency

56.

When using a machine, what would you call the work done by the operator?

a)

work in

b)

work out

c)

distance in

d)

distance out

e)

efficiency

57.

When using a machine, what would you call the height moved by the weight?

a)

work in

b)

work out

c)

distance in

d)

distance out

e)

efficiency

58.

The efficiency of a ramp is 86.7%. If the ramp does 65 J of work, how much work have you done?

a)

more than the work done by the ramp

b)

less than the work done by the ramp

c)

the same amount of work done by the ramp

59.

The efficiency of a ramp is 86.7%. If the ramp does 65 J of work, how much work have you done?

a)

1.33 J

b)

74.97 J

c)

5635.5 J

d)

56.35 J

60.

Potential energy is stored energy. Objects that are higher up have more potential energy than objects that are lower (if both objects have the same mass). If two objects have different masses, the more massive objects has more potential energy (if they are are at the same height).

a)

I don't get it.

b)

GOT IT!

61.

Potential energy is...

a)

energy in motion

b)

stored energy

62.

What two factors affect an object's potential energy?

a)

area and volume

b)

area and height

c)

mass and height

d)

mass and velocity

63.

The least amount of potential energy is at

a)

a

b)

b

c)

c

d)

d

64.

The most potential energy is at

a)

a

b)

b

c)

c

d)

d

65.

Where would a person have to be located to have the minimum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

66.

Where would a person have to be located to have the maximum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

67.
Which object has more gravitational potential energy?
a)
the watch
b)
the pen
c)
the camera
d)
the mug
68.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
69.

Which object will have the largest value for its potential energy?

a)
b)
c)
d)
70.

The drop tower has more potential energy...

a)

at the top of the ride.

b)

at the bottom of the ride.

c)

Potential energy stays the same

d)

I need more information

71.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
72.

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

a)

W

b)

Y

c)

X

d)

Z

73.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

74.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

75.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

76.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

77.
What will happen to the potential energy of the magnets as the N and S get close?
a)
increase
b)
decrease
c)
stay the same
d)
there is none
78.
What happens to the magnetic potential energy when the same poles are far apart?
a)
increases
b)
decreases
c)
stays the same
79.
What will happen to the magnetic potential energy of the magnets when the N and N get close?
a)
increases
b)
decreases
c)
stays the same
80.
When these opposite charges get closer, what happens to their electrical potential energy?
a)
increases
b)
decreases
c)
stays the same
81.
What is the electrical potential energy like when these same charges are far apart?
a)
high
b)
low
c)
the same as when they are close
82.
These opposite charges are far apart. What happens to the electrical potential energy when opposite charges are far apart?
a)
increases
b)
decreases
c)
stays the same
83.
If you were to push these positive same charged particles together, do they have more or less electrical potential energy?
a)
more
b)
less
c)
the same as far apart
84.

Which picture is NOT an example of Chemical PE?

a)
b)
c)
d)
85.

The upper magnet is hung from the top of a box with a rubber band.

The bottom magnet is held in place at the bottom of a box.

What THREE potential energies are affecting this attraction in the picture?

a)

Gravitational, Electrical, Chemical

b)

Gravitational, Elastic, Chemical

c)

Magnetic, Elastic, Chemical

d)

Gravitational, Magnetic, Elastic

86.

What potential energy is this graph representing?

a)

Electric

b)

Elastic

c)

Magnetic

d)

Gravitational

87.

Which piece of evidence BEST represents Chemical PE being released?

a)

a rubber band flung a far distance

b)

an apple falling from a tree

c)

2 magnets repelling

d)

water temperature increasing

88.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

89.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

90.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

91.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

92.

How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?

a)

Decrease the object's mass

b)

Increase the object's height

c)

Increase the object's mass

d)

Decrease the object's height

93.

____________ is the ability to do work.

a)

Energy

b)

Force

c)

Friction

d)

Motion

94.

When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy.

a)

Kinetic Energy

b)

Chemical Energy

c)

Gravitational Potential Energy

d)

Electric Energy

95.

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

a)

height and mass

b)

friction and movement

c)

mass and movement

d)

height and friction

96.

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

97.

At which position does the child on the swing have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

98.

At which point on the roller coaster is the gravitational potential energy the greatest?

a)

W

b)

X

c)

Y

d)

Z

99.

What kind of energy is in a rock at the edge of a cliff?

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Both potential and kinetic energy

d)

none of the above

100.

Which is the correct unit for expressing gravitational potential energy?

a)

Joule

b)

Newton

c)

m/s2

d)

meter

101.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

a)

PE = mgh

b)

PE = mg / h

c)

PE = mg + h

d)

PE = gh

102.

What is the value of the Earth's acceleration due to gravity (g)?

a)

9.8 m/s2

b)

100 m/s2

c)

25 m/s2

d)

3.14 m/s2

103.

What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?

g = 9.8 m/s2

a)

9.8 Joules

b)

1.0 Joule

c)

0.10 Joule

d)

11.8 m/s2

104.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
105.

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 Joules

b)

22,584 Joules

c)

15 Joules

d)

45,167Joules

106.
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. 
107.

The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.

a)

Something Mr. Lance likes to say.

b)

Life

c)

Law of Conservation of Energy

d)

The scientific method

e)

Newton's Third Law

108.
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 
109.

What is energy?

a)

something that picks up things, like a magnet.

b)

Motion of an object

c)

ability to do work

d)

magic rays of sunshine that come down when you're feeling blue.

110.
What is kinetic energy?
a)
energy of work
b)
energy of motion
c)
energy of gravity
d)
energy of power
111.
The SI unit in which kinetic energy is measured is 
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
112.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
113.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
114.

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

a)

676 J

b)

52 J

c)

17J

d)

338 J

115.

What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s

a)

50 J

b)

500 J

c)

250 J

d)

25 J

116.
A 60 kg Ewok is travelling at a constant speed of 7 m/s. What is its kinetic energy in KJ?
a)
1.47 KJ
b)
210 KJ
c)
147 KJ
d)
1470 KJ
117.
What is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s
a)
112.5 J
b)
7,500,000 J
c)
75 J
d)
7,500 J
118.
What is the kinetic energy of a 25,000g object moving at a velocity of 2.5 m/s
a)
78.125 J
b)
31250 J
c)
781.25 J
d)
78,125 J
119.
How much kinetic energy does a person of mass 50kg running at 3m/s have? Provide your answer in KJ.
a)
225 KJ
b)
0.225 KJ
c)
75 KJ
d)
0.075 KJ
120.
What is the kinetic energy of a 30,000 g object moving at a velocity of 4 m/s. Provide you answer in KJ
a)
240,000 KJ
b)
240 KJ
c)
2400 KJ
d)
0.24 KJ
121.
Can energy be destroyed?
a)
no
b)
yes
122.
Can energy be changed?
a)
yes
b)
no
123.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
124.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
125.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
126.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
127.
Which has a greater impact on KE?
a)
mass
b)
velocity
128.
The SI unit in which kinetic energy is measured is 
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
129.
Rearrange the equation for kinetic energy to make mass the subject of the equation.
a)
m = KE/2v2
b)
m = 2KE/v2
c)
m = v2/2KE
d)
m = 2v2/KE
130.
Rearrange the equation for kinetic energy to make velocity squared the subject of the equation.
a)
v2 = KE/2m
b)
v2 = 2m/KE
c)
v2 = 1/2 KE m
d)
v2 = 2KE/m
131.
Rearrange the equation for kinetic energy to make velocity the subject of the equation.
a)
v = √(2KE/m)
b)
v2 = 2KE/m
c)
v = √(m/2KE)
d)
v = √(KE/2m)
132.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
133.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
134.
What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s
a)
676 J
b)
3.25 J
c)
17J
d)
338 J
135.
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
a)
50 J
b)
5 J
c)
250 J
d)
25 J
136.
A golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.
a)
2700 J
b)
16.9 J
c)
1350 J
d)
45 J
137.
What is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s
a)
112.5 J
b)
7,500,000 J
c)
75 J
d)
7,500 J
138.
A rabbit of mass 3kg walks at a speed of 0.5m/s. Calculate its kinetic energy.
a)
0.5 J
b)
0.75 J
c)
0.255 J
d)
0.375 J
139.
How much kinetic energy does a person of mass 50kg running at 3m/s have? Provide your answer in KJ.
a)
225 KJ
b)
0.225 KJ
c)
75 KJ
d)
0.075 KJ
140.
A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?
a)
2 m/s
b)
4 m/s
c)
200 m/s
d)
10 m/s
141.
What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?
a)
50 kg
b)
200 kg
c)
25 kg
d)
100 kg
142.
An explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s
a)
200Kg
b)
20,000Kg
c)
10Kg
d)
200Kg
143.
An 8kg dog chases a cat. if the dog has 400J of kinetic energy. What is the speed of the dog?
a)
10 m/s
b)
5 m/s
c)
1 m/s
d)
100 m/s

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