# Energy Unit Test

60 Questions | Total Attempts: 234  Settings  Unit Test on Energy for 9th Grade Physical Science at San Miguel High School.

Related Topics
• 1.
What is energy?
• A.

The attraction between like objects

• B.

Mass times acceleration

• C.

The ability to do work, cause change, and/or produce heat.

• D.

Momentum

• 2.
The Law of Conservation of Energy states that
• A.

Energy should not be put in landfills

• B.

Energy can be created and destroyed, but never changes form

• C.

Energy stored in fossil fuels will last forever

• D.

Energy cannot be created or destroyed, only changes form

• 3.
Which situation below is an example of energy being transferred?
• A.

A footstep makes sound that travels through air in compresison packets and makes your eardrum vibrate

• B.

A flash light is turned on converting electrical energy into light and heat

• C.

A magnet is attached to an end of a nail which is attached to a battery. A wire connected to the battery touches the edge of the magnet, causing it to spin.

• D.

All of the above.

• 4.
What is kinetic energy?
• A.

Energy of stored in position

• B.

Energy stored in chemical bonds

• C.

Energy stored in bonds between atoms

• D.

Energy of motion

• 5.
How does speed affect kinetic energy?
• A.

Speed really does not affect kinetic energy.

• B.

An increase in speed increases kinetic energy.

• C.

An increase in speed decreases kinetic energy.

• D.

An increase in speed only affects kinetic energy in some situations.

• 6.
How does mass affect kinetic energy?
• A.

Mass does not really affect kinetic energy.

• B.

An increase in mass will increase kinetic energy.

• C.

A decrease in mass will increase kinetic energy.

• D.

An increase in mass will cause kinetic energy to become zero.

• 7.
What is potential energy?
• A.

Energy stored in position

• B.

Energy of motion

• C.

• D.

Force moved through a distance

• 8.
How does mass affect potential energy?
• A.

Mass really does not affect potential energy.

• B.

Mass turns into light when an object is at rest.

• C.

An increase in mass will increase the potential energy.

• D.

An increase in mass will decrease the potential energy.

• 9.
How does height affect potential energy?
• A.

Height really does not affect potential energy.

• B.

The higher an object is, the more potential energy it has.

• C.

The lower an object is, the more potential energy it has.

• D.

If an object is too high, its potential energy will be zero.

• 10.
How does chemical energy differ from nuclear energy?
• A.

Chemical enregy is stored in bonds between atoms; nuclear energy is stored within the atom.

• B.

Chemical energy and nuclear energy are both the same thing.

• C.

Chemical energy is only endothermic; nuclear energy is only exothermic.

• D.

Chemical energy is never dangerous; nuclear energy is always dangerous.

• 11.
What is thermal energy?
• A.

The energy of attraction between magnets.

• B.

The energy stored in long underwear.

• C.

The energy of moving particles in a substance.

• D.

Force divided by acceleration.

• 12.
• A.

Energy stored in position.

• B.

Energy of motion.

• C.

Energy carried by light.

• D.

Energy that causes explosions.

• 13.
What is electrical energy?
• A.

Energy of motion.

• B.

Energy stored in position.

• C.

Energy carried by moving electrons.

• D.

Energy of attraction between masses.

• 14.
Which of these is not a renewable energy?
• A.

Fossil fuels

• B.

Solar

• C.

Moving water

• D.

Wind

• 15.
Which of these describes fossil fuels?
• A.

Ancient organisms buried their fires so we could use the energy later.

• B.

Ancient organisms died. Millions of years of extreme heat and pressure converted their remains into fuel sources we use by burning.

• C.

Ancient organisms converted their emotions into heat and light.

• D.

Ancient organisms floating on the ocean surface are collected. Because they never decayed, we can burn them now for fuel.

• 16.
What are three types of fossil fuels?
• A.

Uranium, light rays, coal

• B.

Uranium, natural gas, and sunlight

• C.

Coal, oil, and natural gas

• D.

Coal, oil, and sunlight

• 17.
Which is a disadvantage of nuclear energy?
• A.

It is only available when the sun is shining.

• B.

It results in radioactives wastes that are dangerous.

• C.

It is noisy.

• D.

It is replenished continually.

• 18.
What does geothermal mean?
• A.

Rotation of the earth.

• B.

Light converted into electricity.

• C.

Heat coming from within the earth.

• D.

The temperature of rocks.

• 19.
What does hydroelectric mean?
• A.

Electricity produced by organisms decaying in stagnant pools of water.

• B.

Electricity produced by the motion of water.

• C.

Electricity produced to keep water in containers and behind dams.

• D.

Electricity produced during storms.

• 20.
What are renewable resources?
• A.

Fuels that cannot be used up by humans.

• B.

Fuels burried in the ground that come from the decay of ancient organisms

• C.

Fuels that reach the earth from outerspace

• D.

Fuels that can be put back after its been used

• 21.
What is a photovoltaic?
• A.

A device that converts pictures into voltages

• B.

A device that converts light into electricity

• C.

A device that converts water into heat

• D.

A device that converts motion into light

• 22.
What is work?
• A.

A mass is acted upon by gravity.

• B.

A force causes an object to hold still.

• C.

A force causes an object to move over a distance.

• D.

An attraction between molecules.

• 23.
KE = 1/2 mv2 is the formula for
• A.

Potential energy

• B.

Kinetic energy

• C.

Work

• D.

None of these

• 24.
Ms. Van Rhoads lifts a book from the ground to a distance 1.5 m from the ground.  During the process of lifting, does she do work?
• A.

Yes

• B.

No

• 25.
Ms. Van Rhoads kicks the wall very hard but it does not move.  Does she do work on the wall?
• A.

Yes.

• B.

No.

• 26.
Ms. Van Rhoads holds a book at a height of 1.5 off the ground.  This is an example of
• A.

Force

• B.

Work

• C.

Kinetic energy

• D.

Potential energy

• 27.
Ms. Van Rhoads drops a book from a height of 1.5m.  As the book falls, it is gaining
• A.

Mass

• B.

Potential energy

• C.

Kinetic energy

• D.

• 28.
A bowling ball and a ping pong ball are rolled down the hallway at identical speeds.  Which has greater kinetic energy?
• A.

Bowling ball

• B.

Ping pong ball

• C.

They have the same kinetic energy

• D.

Neither has any kinetic energy

• 29.
A bowling ball and a ping pong ball are both sitting on top of a ladder.  Which has greater kinetic energy?
• A.

Bowling ball

• B.

Ping pong ball

• C.

Both have infinite kinetic energy

• D.

Neither has any kinetic energy

• 30.
A bowling ball and a ping pong ball sit on top of a ladder.  Which has the greater potential energy?
• A.

Bowling ball

• B.

Ping pong ball

• C.

Both have the same potential energy

• D.

Neither has any potential energy

• 31.
Batman and Spiderman each apply a force of 1500 N to lift a villain's car into the air.  Batman lifts the car 2 m but Spiderman lifts it 20 m.  Who does more work?
• A.

Batman

• B.

Spiderman

• C.

Both do the same amount of work

• D.

Neither does any work

• 32.
Superman lifts a train into the air.  He applies a force of 4000 N and lifts the train 10 m.  How much work does he do on the train?
• A.

400 J

• B.

4000 J

• C.

40,000 J

• D.

400,000 J

• 33.
Spiderman sits on top of a skyscraper.  If the building is 250 m tall and Spiderman has a mass of 80 kg, what is his potential energy?
• A.

20,000 J

• B.

2000 J

• C.

196,000 J

• D.

19,600 J

• 34.
A baseball is thrown at a speed of 20 m/s.  The baseball has a mass of 0.15 kg.  Calculate its kinetic energy.
• A.

30 J

• B.

60 J

• C.

15 J

• D.

3 J

• 35.
A softball has kinetic energy of 81 J as it flies across home plate at a velocity of 30m/s.  Calculate its mass.
• A.

0.9 kg

• B.

0.09 kg

• C.

18 kg

• D.

0.18 kg

• 36.
A hawk is perched on a high ledge intently watching Ms. Goodwin's pet hamster PeeWee.  If the ledge is 60 m above the ground and the hawk has potential energy of 1176 J, what is the mass of the hawk?
• A.

5 kg

• B.

2 kg

• C.

11.76 kg

• D.

0.2 kg

• 37.
An elephant and a mouse rent identical sports cars.  Each has a full tank of gas.  They drive eactly 300 laps around a track.  Then they stop to refuel.  Which animal puts more gas into her car?
• A.

The mouse

• B.

The elephant

• C.

They put the same amount of gas into their cars

• D.

Neither puts any gas into her car

• 38.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  Who does more work?
• A.

Ironman

• B.

Evil Villain

• C.

Neither does any work

• D.

Both do the same amount of work

• 39.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  Who exerts the greater force on the boulder?
• A.

Ironman

• B.

Evil Villain

• C.

Neither exerts any force

• D.

Both exert the same amount of force

• 40.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  What is the meaning of the slope of each line?
• A.

The slope is the direction the boulder is moved by each character.

• B.

The slope is the force exerted by that character.

• C.

The slope is the work done by that character.

• D.

The slope is the distance the boulder is moved by that character.

• 41.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  Find the slope of the two lines.
• A.

1/10 and 1/2

• B.

1/12 and 1

• C.

12 and 1

• D.

10 and 2

• 42.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  How much work has Ironman done when the boulder has traveled 4 m ?
• A.

• B.

• C.

• D.

• 43.
The chart of "Ironman vs. Evil Villain" compares the work done by each of them by throwing a boulder 6 m.  If Ironman doubled his effort and exerted twice as much force on the boulder, how would the graph change?
• A.

His line would be twice as steep.

• B.

His line would be half as steep.

• C.

His line would be four times steeper.

• D.

The graph would not change.

• 44.
A student turns on a flashlight, converting electrical energy into what?
• A.

• B.

Rotational energy

• C.

Kinetic energy

• D.

Potential energy

• 45.
Ms. Weleck put two pieces of metal in an orange.  Then she measured the voltage difference between them.  In this experiment, chemical energy is converted into what?
• A.

Nuclear energy

• B.

Mechanical energy

• C.

Electrical energy

• D.

Potential energy

• 46.
Endothermic means
• A.

Heat is released

• B.

Heat is absorbed

• C.

Heat is equalibrated

• D.

Heat is not involved

• 47.
When new bonds form between atoms in a chemical reaction, energy is
• A.

Created

• B.

Destroyed

• C.

Released

• D.

Absorbed

• 48.
The process involved in the "smooshing" of two atomic nuclei together is called
• A.

• B.

Feuding

• C.

Fission

• D.

Fusion

• 49.
Elastic energy is found in
• A.

Planets orbiting the sun

• B.

Springs

• C.

Electrons moving

• D.

The bonds between atoms

• 50.
When Ms. Van Rhoads drops a book, it hits the ground with a loud "thud".  Sound is really just another form of ___________ energy because it is the movement of air.
• A.

• B.

Work

• C.

Kinetic

• D.

Potential

• 51.
In this drawing, the top spring is neither stretched nor compressed.  In the bottom picture, the spring is stretched and then held at a certain distance away from its rest postion.  At the point where it is held, what type of energy does it have?
• A.

• B.

Kinetic

• C.

Potential

• D.

Chemical

• 52.
The picture below shows the orbits of objects around the earth -- possibly satellites or small space debris.  What type of energy is this?
• A.

Elastic

• B.

Light

• C.

Magnetic

• D.

Gravitational

• 53.
A magnet attracts iron filings to itself.  This is an example of what kind of energy?
• A.

Rotational

• B.

Chemical

• C.

Electric

• D.

Magnetic

• 54.
What kind of energy is involved in this spinning wheel?
• A.

Fusion

• B.

• C.

Rotational

• D.

Electrical

• 55.
This is a model of an atom being split into pieces.  What type of energy is this?
• A.

Nuclear fusion

• B.

Nuclear fission

• C.

Chemical - endothermic

• D.

Magnetic

• 56.
The SI unit for energy is the
• A.

Watt

• B.

Joule

• C.

Newton

• D.

Meter

• 57.
The amount of energy neede to lift a medium sized potato about 1 meter is
• A.

1 Newton

• B.

1 kg

• C.

1 Joule

• D.

1 calorie

• 58.
The amount of energy it takes to raise the temperature of 1 g of water 1 degree Celsius is
• A.

1 kg

• B.

1 Newton

• C.

1 Joule

• D.

1 calorie

• 59.
A human eats the meat from a chicken that ate some corn which got energy from the sunshine.  This is an example of
• A.

Renewable energy

• B.

A geothermal process

• C.

A photovoltaic process

• D.

A food chain

• 60.
Energy can change forms, but sometimes energy escapes the system in the form of heat.  The percent of energy present before and after a change is called its _________ .
• A.

Renewability

• B.

Consumption

• C.

Transformation

• D.

Efficiency