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Energy Transformations, Potential vs Kinetic Energy, & Forces

Total questions: 100

Worksheet time: 1hrs 22mins

Name
Class
Date
1.
Are forces balanced or unbalanced when a marble rolls down a ramp?
a)
Balanced
b)
Unbalanced
2.
A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?
a)
The cart will speed up.
b)
The cart will slow down.
c)
The cart will move at a constant speed in a straight line.
d)
The cart will fly to never never land!
3.
Are forces balanced or unbalanced when a plane is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
4.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
5.
The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 3 m/s?
a)
The boat will speed up.
b)
The boat will slow down. 
c)
The boat will move backwards.
d)
The boat will continue sailing to the left at a constant speed of 4 m/s.
6.
The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 5 m/s?
a)
The boat increase speed and continue moving left.
b)
The boat will sink. 
c)
The boat will move backwards.
d)
The boat will continue sailing to the left at a constant speed of 4 m/s.
7.
Are the forces acting on the rope balanced or unbalanced?
a)
Balanced
b)
Unbalanced
8.
Are the forces acting on the rope balanced or unbalanced?
a)
Balanced
b)
Unbalanced
9.
At A the speed of the ball increases. At B, speed decreases. At C, speed is constant. Which points does the ball experience unbalanced forces?
a)
A and B
b)
B and C
c)
A and C
d)
A, B and C
10.
A _____ is a pull or a push.
a)
force
b)
friction
c)
gravity
d)
speed
11.
What force moves an object away from you?
a)
pull
b)
push
c)
gravity
d)
Jedi force
12.
Balanced forces can cause
a)
an object to speed up or slow down
b)
an object to stay still or move at a constant speed and direction
13.
How are a push and a pull alike?
a)
You can hear them both.
b)
They are both names of cats.
c)
You can do them both at the same time.
d)
They are both forces.
14.
An unbalanced force can make all of these things happen except...
a)
a moving object changes direction
b)
an object just sits there
c)
a moving object speeds up
d)
a moving object stops
15.
this force is ___________ and there will be 
a)
unbalanced, no movement
b)
balanced, movement to the left
c)
balanced, no movement
16.
Which of the following statements is true? 
a)
Balanced forces cause a change in motion. 
b)
Unbalanced forces cause a change in motion. 
c)
Forces do not effect the change in motion. 
17.
If all four forces are balanced, the plane will
a)
plummet to the ground
b)
fly faster and faster
c)
fly slower and slower
d)
fly at a constant speed and direction
18.

These forces are...

a)

Balanced

b)

Unbalanced

19.

These forces are...

a)

Balanced

b)

Unbalanced

20.

What is true about this image?

a)

It shows unbalance forces.

b)

It shows balanced forces.

c)

The people on the right are winning.

d)

The people on the left are winning.

21.
Which would have the greatest gravitational potential energy?
a)
A 4lb rat on a school desk
b)
A 45lb dog in an oak tree
c)
A 14 pound platypus on a swing
d)
A 45lb child on a bike
22.
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 
23.
A stretched object, such as a rubber band, has _____________
potential energy.
a)
electrical
b)
gravitational
c)
kinetic
d)
elastic
24.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
25.
Food has _________ energy. 
a)
Potential 
b)
Kinetic 
c)
None of the above 
d)
All of the above 
26.
If the skier is at the top of the hill waiting for the whistle to blow for his turn to ski, he has ____________, after the whistle blows and he starts his ski run, he has ___________ .
a)
kinetic energy; potential energy
b)
potential energy; friction
c)
kinetic energy; gravity
d)
potential energy; kinetic energy
27.
A ball is released from rest at position 1.  The diagram shows the ball in four positions as it rolls along a track from left to right. In which position does the ball have its minimum gravitational potential energy and maximum kinetic energy?
a)
1
b)
2
c)
3
d)
4
28.
Energy stored in the bonds between atoms.
a)
Elastic
b)
Gravitational
c)
Chemical
d)
Nuclear
29.
At which position would the roller coaster be transforming kinetic energy to potential energy?
a)
A to B
b)
B to C
c)
C to D
d)
No such transformation.
30.
A book falls from a desk. Which  BEST describes the book’s change in potential energy?
a)
The potential energy is increased so the total amount of energy is increased
b)
The potential energy is decreased so the total energy is decreased
c)
The potential energy is increased so the total is decreased
d)
Potential energy will change to kinetic energy, but the total energy remains constant
31.

Potential energy is

a)

energy due to position.

b)

energy due to motion.

32.

Kinetic energy is

a)

energy due to position.

b)

energy of motion.

33.

Which ball has the greater potential energy and why?

a)

The blue ball has more PE because it is closer to the ground.

b)

The blue ball has more PE because it has more mass.

c)

The green ball has more PE because it's height is greater.

d)

The green ball has more PE because it has less mass.

34.

Which pie chart represents the energy balance of the rollercoaster in this diagram?

a)

Choice A

b)

Choice B

c)

Choice C

d)

Choice D

35.

Which pendulum position has maximum KE?

a)

1

b)

2

c)

3

d)

4

36.

Which pendulum position has 50% PE and 50% KE?

a)

1

b)

2

c)

3

d)

4

37.

Why does Object C have greater potential energy than both Objects A and B?

a)

It has the same height as Object B and the same mass as Object A.

b)

It is more massive than Object B and has a higher position than Object A.

38.

This diagram and formula illustrates

a)

kinetic energy

b)

potential energy

c)

mechanical energy

d)

none of the above

39.

Which of the three springs represents increased potential energy?

a)

The compressed spring only because potential energy is only gained when an object is squeezed.

b)

The stretched spring only because potential energy is only gained when an object is stretched out.

c)

The compressed and stretched spring both have elastic potential energy gained from being squeezed or stretched.

d)

none of the springs possesses potential energy

40.

A skier is poised at the top of a steep slope.

a)

Potential

b)

Kinetic

41.

A concrete dam holds back a large reservoir of water.

a)

Potential

b)

Kinetic

42.

An archer has pulled back the string of his bow, ready to release the arrow at the distant target.

a)

Potential

b)

Kinetic

43.

A women swings her golf club down toward the golf ball sitting on the tee.

a)

Potential

b)

Kinetic

44.

A flowerpot is falling from a windowsill.

a)

Potential

b)

Kinetic

45.

A man swings an axe toward a log.

a)

Potential

b)

Kinetic

46.

A roller coaster has reached the top of the highest crest.

a)

Potential

b)

Kinetic

47.

A marble rolls across the table.

a)

Potential

b)

Kinetic

48.

A fast-moving stream runs toward the mill.

a)

Potential

b)

Kinetic

49.

A lamp that plugs into a wall socket draws energy, which flows through a thin wire in the bulb, causing it to heat up until it glows. What energy transformations are taking place?

a)

Chemical → light → electrical

b)

Mechanical → sound → light

c)

Thermal → solar → electrical

d)

Electrical → thermal → light

50.

An electric pencil sharpener uses electricity to make its motor spin. The pencil sharpener also makes noise and heats up. Which observation of the pencil sharpener demonstrates the law of conservation of energy?

a)

The amount of electrical energy used equals the total amount of mechanical, sound, and thermal energy produced.

b)

The amount of energy used by the electric pencil sharpener is greater than an electric lamp.

c)

The electric pencil sharpener only uses energy when it is being used to sharpen a pencil.

d)

The electric pencil sharpener is easier to use than the older version that was cranked by hand.

51.

Turning the handle makes a current that causes the light bulb to glow. What are the energy transformations that happen in this hand generator?

a)

Thermal → solar → light

b)

Mechanical → electrical → light

c)

Electrical → mechanical → light

d)

Solar → light → electrical

52.

When energy enters a system and then comes out of the system later, the law of conservation of energy states that–

a)

some of the energy that entered the system will remain in the system.

b)

the energy will always create a change in the properties of the parts of the system.

c)

the form of energy that comes out of the system must be the same form that entered.

d)

the amount of energy coming out of the system must equal the energy that entered the system.

53.

In which of the following scenarios would this energy transformation be observed?

chemical → light → heat

a)

Plucking a guitar string

b)

Lighting a match

c)

Turning on a fan

d)

Starting a car

54.

Which of the following is a form of potential energy?

a)

sound energy

b)

chemical energy

c)

mechanical energy

d)

thermal (heat) energy

55.

The law of conservation of energy states ___.

a)

electrical energy can be transformed into other forms

b)

energy can be created and destroyed

c)

energy is never created nor destroyed

d)

what goes up must come down

56.

There are ___ forms of kinetic energy.

a)

3

b)

5

c)

4

d)

2

57.

There are ___ forms of potential energy.

a)

3

b)

5

c)

4

d)

2

58.

During energy transformations, energy is never ___.

a)

released as heat

b)

used to increase an object's potential energy

c)

created or destroyed

d)

completely transformed

59.

A baseball is hit into the air with a bat. When does baseball have the greatest gravitational potential energy?

a)

when it hits the ground

b)

when it reaches its highest point

c)

when it leaves the bat

d)

when the mechanical and kinetic energies of the baseball are equal

60.

___ is energy stored by things that stretch or compress.

a)

Gravitational potential

b)

Elastic kinetic energy

c)

Chemical kinetic energy

d)

Elastic potential energy

61.

Calculate the gravitational potential energy of the object.

GPE = mgh

mass: 50

gravity: 10

height: 6

a)

5320J

b)

300J

c)

66J

d)

3000J

62.

What type of energy is stored in a battery?

a)

electrical

b)

thermal

c)

radiant

d)

chemical

63.

Which energy transformation occurs in a toaster?

a)

electrical → thermal

b)

chemical → thermal

c)

nuclear → electrical

d)

thermal → electrical

64.

A battery converts what type of energy to another?

a)

electrical → thermal

b)

chemical → electrical

c)

kinetic → nuclear

d)

light → heat

65.

Energy transformations occur when ___.

a)

a chemical reaction takes place

b)

energy changes from one form to another

c)

energy is created through conduction

d)

two forces slide together that are touching

66.

Which items would have this energy transformation: chemical → mechanical

a)

a candle burning

b)

eating a big breakfast before a race

c)

a ball bouncing

d)

using a hairdryer

67.

Which of the following is not a source of stored chemical energy that can be turned into a form of kinetic energy?

a)

a battery in a toy car

b)

food

c)

the nucleus of an atom

d)

fossil fuels

68.
Which type of energy transformation occurs when a flashlight shines?
a)
Chemical to thermal to electrical
b)
Chemical to electrical to radiant
c)
Thermal to chemical to radiant
d)
Chemical to electrical to sound
69.

Energy caused by fusion or fission of atoms' nuclei

a)

mechanical

b)

nuclear

c)

chemical

70.

Heat energy

a)

thermal

b)

radiant

c)

sound

71.

Wind

a)

mechanical energy

b)

thermal energy

c)

nuclear energy

d)

radiant energy

72.

Bow and arrow

a)

radiant energy

b)

thermal energy

c)

chemical energy

d)

mechanical energy

73.

Fire

a)

thermal energy

b)

mechanical energy

c)

nuclear energy

d)

sound energy

74.

Microwave

a)

sound energy

b)

radiant energy

c)

chemical energy

d)

mechanical energy

75.

Talking

a)

thermal energy

b)

radiant energy

c)

sound energy

d)

mechanical energy

76.

Lightning

a)

electrical energy

b)

nuclear energy

c)

sound energy

d)

chemical energy

77.
Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?
a)
A triple beam balance measuring an object’s mass.
b)
A pencil sharpener plugged into a wall outlet.
c)
A projector displaying a diagram on the screen.
d)
A working flashlight used to light up a dark corner.
78.
Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?
a)
chemical → thermal
b)
light → chemical
c)
thermal → light
d)
chemical → electrical
79.
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?
a)
chemical → light → electrical
b)
mechanical → sound → light
c)
thermal → solar → electrical
d)
electrical → thermal → light
80.
The Theory of the Conservation of Energy states -
a)
Energy can be created, just not destroyed. It changes its form from one type to another.
b)
Energy can never be created nor destroyed. It can only change its form from one type to another.
c)
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
d)
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
81.
Solar Energy is transferred to _____ Energy.
a)
Mechanical
b)
Solar
c)
Sound
d)
Electrical
82.
People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?
a)
mechanical to thermal to electrical
b)
chemical to mechanical to thermal
c)
mechanical to chemical to sound
d)
chemical to sound to electrical
83.

Which of following are types of kinetic energy? Check all that apply.

a)

sound energy

b)

light energy

c)

thermal energy

d)

mechanical energy

e)

potential

84.

Vibrations produce _______ energy.

a)

chemical

b)

sound

c)

potential

d)

light

85.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
86.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
87.

The picture showing the energy conversion

Chemical → heat

is:

a)
b)
c)
d)
88.

The picture showing the energy conversion

Chemical → light & heat

is:

a)
b)
c)
d)
89.

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

a)

more

b)

less

90.

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

a)

Position (height) and mass

b)

Friction and movement

c)

Mass and Movement

d)

Height and Friction

91.

When a pendulum swings, at which point is kinetic energy greatest?

a)

1

b)

2

c)

3

d)

4

92.

When you stretch a rubber band, you are storing __________ energy.

a)

kinetic

b)

potential

93.

What position has the least amount of potential energy?

a)

W

b)

X

c)

Y

d)

Z

94.
What energy is given off when a cell phone rings?
a)
Sound Energy
b)
Gravitational Energy
c)
Thermal Energy
d)
Nuclear Energy
95.

In order to INCREASE the potential energy of an object, you need to:

a)

put the object lower to the ground

b)

raise the object higher

96.

Which skier will have more kinetic energy at the bottom of the ramp?

a)

The blue skier.

b)

The yellow skier.

c)

They will have the same amount of kinetic energy.

d)

It is impossible to tell from the information given.

97.

A tennis ball is thrown into the air. At which position will its PE and KE be the same?

a)

Position A

b)

Position B

c)

Position C

d)

The PE and KE will be the same at each position.

98.

Friction stops moving objects by transforming kinetic energy into ________.

a)

potential energy

b)

thermal energy

c)

chemical energy

d)

elastic energy

99.
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
a)
Law of Conservation of Mass
b)
Newton's Second Law
c)
Law of Conservation of Energy
d)
Newton's Third Law
100.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z

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