Free Printable Energy Test

1.

James Watt was very well educated and entered college at the age of 16

a)

True

b)

False

2.

James Watt didn’t invent the steam engine, but his engines did twice the work in half the time.

a)

True

b)

False

3.

James Prescott Joule wanted to replace the steam engines in his family’s brewery business with electric motors.

a)

True

b)

False

4.

James Prescott Joule had a pet mouse that lived in his beard and ate crumbs.

a)

True

b)

False

5.

In 1850, James Prescott Joule established the equivalence between amounts of mechanical work and heat in his famous paddle wheel experiment.

a)

True

b)

False

6.

Work and energy have the same units, Joules.

a)

True

b)

False

7.

Kinetic energy depends on an object’s height above a reference point.

a)

True

b)

False

8.

James Watt became very wealthy after inventing the light bulb.

a)

True

b)

False

9.

Heat is NOT a form of energy, just the transfer of thermal energy.

a)

True

b)

False

10.

James Prescott Joule studied the concept of heat to help his family’s brewery business.

a)

True

b)

False

11.

The unit for work is the Joule, what combination of fundamental units does the Joule represent?

a)

$kg\cdot\frac{m}{s^2}$

b)

$kg\cdot\frac{m}{s}$

c)

$kg\cdot\frac{m^2}{s^2}$

d)

$\frac{m^2}{s^2}$

12.

The Symbol for Work is

a)

W

b)

U

c)

J

d)

K

e)

N

13.

What variable is used to show potential energy?

a)

W

b)

K

c)

U

d)

E

e)

Q

14.

What is the unit for Potential Energy?

a)

Ns

b)

W

c)

Q

d)

J

e)

A

15.

Kinetic Energy involves

a)

gravity

b)

mass

c)

force

d)

acceleration

e)

velocity

16.

The symbol for Kinetic Energy is

a)

J

b)

K

c)

U

d)

E

e)

Q

17.

What is the unit for Kinetic Energy?

a)

Ns

b)

W

c)

Q

d)

J

e)

A

18.

The Energy due to arrangement or position is

a)

Potential Energy

b)

Kinetic Energy

c)

Heat

d)

Conservation of Energy

19.

The energy due to an object's motion is

a)

Kinetic Energy

b)

Potential Energy

c)

Momentum

d)

Impulse

20.

Work is ...

a)

What I'm doing from home instead of at school

b)

Force applied over a time

c)

Force applied over a distance

d)

How much force is applied to do something

21.

Energy is

a)

Stuff that wants to move

b)

The ability to do work

c)

The force that makes work happen

d)

Something that gets used up to do work

22.

The law of conservation of energy states that

a)

Energy is hard to use up

b)

Energy is impossible to measure

c)

The energy in a closed or isolated system stays the same

d)

The energy in a closed or isolated system gets used up

23.

What is the symbol for power?

a)

W

b)

U

c)

P

d)

K

24.

Power is which of the following two?

a)

the rate of translation

b)

the rate of delivering energy

c)

the rate of doing work

d)

the rate of rotation

25.

What is the unit for power?

a)

J

b)

Js

c)

W

d)

N/m

26.

Temperature is a measure of

a)

gravitational potential energy

b)

translational kinetic energy

c)

thermal kinetic energy

d)

rotational kinetic energy

27.

Entropy is...

a)

the amount of disorder in a system

b)

the way energy gets conserved

c)

The trophy you get from conserving energy

d)

the ideal gas constant

28.

Work causes a change in

a)

weight. $W=\Delta F\left(g\right)$

b)

inertia. $W\ =\ \Delta m$

c)

velocity. $W=\Delta v$

d)

energy. $W=\Delta E$

29.

What is the Equation for Power

a)

$P\ =\ W\ \cdot\ t$

b)

$P=\frac{W}{\Delta t}$

c)

$p=m\cdot v$

d)

$W=F\cdot d$

e)

$J=F\cdot t$

30.

Which is the correct equation for finding the energy used by something with a known power?

a)

$E=P\cdot d$

b)

$E=P\cdot t$

c)

$E=W\cdot t$

d)

$E=W\cdot d$

31.

Which two equations show the idea of Conservation of Energy?

a)

$E=P\cdot t$

b)

$E=U+K$

c)

$\Sigma E\left(i\right)=\Sigma E\left(f\right)$

d)

$J=\Delta p$

e)

$\Sigma p\left(i\right)=\Sigma p\left(f\right)$

32.

What is the equation for Gravitational Potential Energy

a)

$W=F\cdot d$

b)

$U=m\cdot a$

c)

$U\left(g\right)=m\cdot g\cdot h$

d)

$F\left(g\right)=m\cdot g$

33.

There is friction and air resistance present in the rollercoaster system. Which equation/process best describes location 5.

a)

E=U+K

b)

E=U

c)

E=U+K+W

d)

E=K

e)

E=K+W

34.

There is friction and air resistance present in the rollercoaster system. Which equation/process best describes location 4.

a)

E=U+K

b)

E=U

c)

E=U+K+W

d)

E=K

e)

E=K+W

35.

There is friction and air resistance present in the rollercoaster system. Which equation/process best describes location 3.

a)

E=U+K

b)

E=U

c)

E=U+K+W

d)

E=K

e)

E=K+W

36.

Looking at the equation of the ideal gas law, if the temperature increases and the volume stays the same, what happens to the pressure?

a)

Increases

b)

Decreases

c)

Increases twice as much

d)

Stays the same

37.

Looking at the equation of the ideal gas law, why does a filled balloon expand when the air inside it warms up?

a)

The air molecules multiply by n when they get heated and they need more room.

b)

The gas constant R increases at the temperature increases and that increases the volume.

c)

As the temperature increases, the pressure decreases inside the balloon, so the volume needs to increase more.

d)

As the temperature increases, the molecules inside move faster, collide more, and increase the pressure, which causes the balloon to expand.

38.

Where on this F vs. d graph is the work shown?

a)

On the Y axis

b)

On the X Axis

c)

On the slope of the lines on the graph

d)

In the shaded area on the graph

39.

On this F vs d graph where is the Work shown?

a)

On the Y axis

b)

On the X axis

c)

In the area under the rectangle

d)

In the area under the triangle

e)

On the slop of the line

40.

As a 9kg bowling ball is raised above your foot, which two statements are true?

a)

Potential energy decreases as the bowling ball is raised

b)

Potential energy increases as the bowling ball is raised

c)

The amount of work you have done increases as you raise the bowling ball

d)

The amount of work you have done decreases as you raise the bowling ball

41.

When a force is exerted on an object, work is only done if the object

a)

is large.

b)

is heavy

c)

exerts an equal and opposite force

d)

moves

42.

If you double distance an object move, but apply the same force, the work you did... $W=F\cdot d$

a)

stayed the same, but was more difficult.

b)

doubled.

c)

was cut in half.

d)

increased four times, because you have to square the force.

43.

If you need to lift an object but it is too heavy, mechanical advantage shows you that you should

a)

give up.

b)

get stronger.

c)

increase the distance over which you do work.

d)

call someone else to help you.

44.

If you used a pulley system that lifted a 300N object three times slower than you pulled on the rope, how much force were you applying?

a)

50N

b)

100N

c)

200N

d)

800N

45.

In the F vs. d graph, what does the shaded area under

the plot represent?

a)

a change in momentum

b)

a change in posit

c)

a change in energy

d)

a change in impulse

46.

Which of the following is NOT an example of potential energy?

a)

logs that are ready to burn

b)

a bicyclist cruising on a flat road

c)

a sling shot ready to fire a marble

d)

a boulder ready to fall off a cliff

47.

Which of the following is NOT an example of kinetic energy?

a)

a baseball flying from the picture to the catcher

b)

a bicyclist cruising on a flat road

c)

a sling shot ready to fire a marble

d)

a piston in a car’s engine after the cylinder fired

48.

Which two statements about power are true?

a)

The faster work is being done, more power is being applied.

b)

If you have a greater power output, the applied force must be larger.

c)

If the power is increased, the amount of energy delivered or used is larger.

d)

If the power is increased, the amount of time energy is delivered or used is longer.

49.

Energy when delivered to your home isn’t measured in Joules, it’s measured in

a)

Mega-Watts (MW).

b)

Kilo-Joules (kJ).

c)

Kilo-Joule hours (kJ-hr).

d)

Kilo-Watt hours (kW-hr).

50.

Where in the swing of the pendulum shown is the

potential energy the largest? It may be in more than one place!

a)

A

b)

B

c)

C

d)

D

e)

E

51.

Where in the swing of the pendulum shown is the

kinetic energy the largest? It may be in more than one place!

a)

A

b)

B

c)

C

d)

D

e)

E

52.

If the total energy at location A is 60J,

what is the total energy at location B?

a)

0J

b)

30J

c)

60J

d)

120J

53.

If the total energy at location A is 60J,

what is the total energy at location C?

a)

0J

b)

30J

c)

60J

d)

120J

54.

Which equation/description best fits location 1 on the roller coaster?

a)

E=U+K

b)

E=0J

c)

E=U

d)

E=K

e)

Work is giving the system energy.

55.

Which equation/description best fits location 2 on the roller coaster?

a)

E=U+K

b)

E=0J

c)

E=U

d)

E=K

e)

Work is giving the system energy.

56.

Which equation/description best fits location 3 on the roller coaster?

a)

E=U+K

b)

E=0J

c)

E=U

d)

E=K

e)

Work is giving the system energy.

57.

Which equation/description best fits location 4 on the roller coaster?

a)

E=U+K

b)

E=0J

c)

E=U

d)

E=K

e)

Work is giving the system energy.

58.

Which equation/description best fits location 5 on the roller coaster?

a)

E=U+K

b)

E=0J

c)

E=U

d)

E=K

e)

Work is giving the system energy.

59.

A high diver steps off a diving platform that is 10 meters above the water. During the fall there will be a decrease in the diver’s _____________ . (neglect air resistance)

a)

potential energy

b)

kinetic energy

c)

total mechanical energy

d)

momentum

60.

If the environment does work on a system,

a)

the system's energy can only increase.

b)

the system's energy can only decrease.

c)

the system's energy still remains constant.

d)

the system's energy will change.

61.

When a force is exerted on an object, work is done only if the object

a)

stays at rest.

b)

is heavy.

c)

moves.

d)

has no momentum initially.

62.

In which state of matter are atoms held together the most?

a)

liquid

b)

solid

c)

gas

d)

plasma

63.

If something is hot, the atoms in it are

a)

moving fast.

b)

moving slowly.

c)

not moving at all.

d)

frustrated.

64.

When a gas is heated in a closed container, the internal pressure increases. Which best describes the reason for the increase in pressure?

a)

The average kinetic energy of the gas molecules decreases.

b)

The potential energy of the gas increases.

c)

The average kinetic energy of the gas increases.

d)

The potential energy of the gas decreases.

65.

In which of the following systems is the entropy decreasing?

a)

Cleaning your bedroom

b)

Adding cold milk to a cup of hot coffee

c)

Smashing a coffee cup with a hammer

d)

Stomping on a sand castle

66.

Which of these statements best explains the difference between work and power?

a)

Work is a vector and power is a not a vector.

b)

Work decreases the energy of an object and power increases it.

c)

Work is the distance an object travels and power is the energy the object gains.

d)

Work is the change in energy and power is how fast that energy change happens.

67.

The illustration shows a bouncing ball tracked in time. What is the best explanation for h₂ being less than h₁?

a)

The ball has more translational kinetic energy after hitting the ground, so it has less potential energy.

b)

When the ball hits the ground, some of its energy goes into heat and thermal internal energy, so less turns back in to potential energy.

c)

When the ball hits the ground, the ball loses some mass, so less mass creates less potential energy when it goes back up.

d)

Entropy in the system decreases, which also causes the potential energy to decrease.

68.

Looking at the picture, which heating shows conduction?

a)

A

b)

B

c)

C

d)

That's not a form of heating!

69.

Looking at the picture, which heating shows convection?

a)

A

b)

B

c)

C

d)

That's not a form of heating!

70.

Looking at the picture, which heating shows radiation?

a)

A

b)

B

c)

C

d)

That's not a form of heating!

71.

A nun applies an average force of 150N while lifting a box of books 0.7m. How much work did the nun do?

a)

100J

b)

105J

c)

100W

d)

105Ns

72.

How much Work is shown on the F vs d graph?

a)

83.33J

b)

240J

c)

48.0J

d)

480J

e)

0.012J

73.

How much work is shown on the graph below?
$base=9m.\ \ \ height=600N$

a)

5400J

b)

2700J

c)

66.66N/m

d)

66.66J

e)

160J

74.

What is the slope shown on the F vs d graph?

a)

2700J

b)

66.66N/m

c)

5400N/m

d)

33.33J

75.

A 9kg bowling ball is held 0.4m above your foot. What is the bowling ball’s potential energy

a)

34.00J

b)

9.81J

c)

35.28J

d)

33.91J

76.

A 1500kg car is moving at 40m/s. What is the car’s kinetic energy?

a)

1,200,000J

b)

2,400,000J

c)

60,000kg(m/s)

d)

37.5kg/(m/s)

77.

The F vs. d graph shows the force applied to a marble by a slingshot. How much kinetic energy did the slingshot give to the marble?

a)

100J

b)

250J

c)

40J

d)

50J

78.

A motor does 900J of work in 6 seconds, what is the motor’s power output?

a)

150W

b)

200W

c)

540W

d)

5400W

79.

A 40W light bulb is left on for half an hour (1800s). How much energy did it use?

a)

45J

b)

72,000J

c)

144,000J

d)

36,000J

80.

Suppose a girl riding a bike has 1500J of kinetic energy. When she moves twice the speed, what would her kinetic energy be?

a)

2,000J

b)

4,000J

c)

6,000J

d)

8,000J

81.

What is the gravitational potential energy of a 50kg rock about to fall off a 120m cliff?

a)

$6,000J$

b)

$60,000J$

c)

$58,800J$

d)

$24,725J$

82.

An 85kg runner is sprinting at 6.8m/s. What is her kinnetic energy?

a)

$1,548.3J$

b)

$3930.4J$

c)

$2,000J$

d)

$1,965.2J$

83.

If you do 150J of work to lift a bucket of water straitght up off the ground, how much Potential energy does it have now?

a)

$300J$

b)

$150J$

c)

$75J$

d)

$900J$

84.

A 2.0 kg mass is moving with a speed of 3.5 m/s. What is the kinetic energy of the mass?

a)

3.33J

b)

6.15J

c)

9.00J

d)

12.25J

85.

An 75.0 kg firefighter is on a ladder 10.0 meters above the ground. When the firefighter descends to 5.00 meters above the ground, the firefighter's gravitational potential energy will decrease by _____________.

a)

500J

b)

2000J

c)

7350J

d)

3675J

86.

An engine has an input of energy of 900J and does 400J of work. Which of the following is the heat loss?

a)

500J

b)

1300J

c)

400J

d)

600J

87.

A person pushes a box with a constant force of 950N. It moves a total of 6.5m. How much work did the person do?

a)

153J

b)

6,175J

c)

5,520J

d)

54, 096J

Energy Test

Total questions: 87

Worksheet time: 3hrs 35mins

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