Energy Unit Test Review

In which of these objects does the following energy transformation occur?

POTENTIAL CHEMICAL ENERGY TO KINETIC MECHANICAL ENERGY

• remote control car

• toaster

• rubber band

• coffee maker

Of these items, which uses sunlight to generate electricity?

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Which of the following is an example of the transformation of mechanical energy into sound energy?

• heat from a campfire

• battery in a flashlight

• a violin being played

• ice cream melting

Of these items, which best represents the conversion of potential energy into electric energy?

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Tags

NGSS.HS-PS3-3

The Law of __________ of Energy states that energy cannot be created and cannot be destroyed. So when energy is converted, the total amount of energy stays the same.

• Decimation

• Congregation

• Decoration

• Conservation

Tags

NGSS.MS-PS3-5

True or false: This roller coaster car can travel from Point 1 to Point 2 without any outside force?

• True because Point 2 at the end of the coaster track is a little lower than Point 1.

• False. Even though Point 2 is a little lower than Point 1, the car will not have enough kinetic energy to make it over the tall hill.

• True because the car will gather more potential energy when it gets to the top of the tall hill.

• False. Point 2 is much higher than Point 1 so there's not enough kinetic energy.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

What type of energy transformation occurs in a stove burner?

• thermal (heat) to chemical

• electric to thermal (heat)

• thermal (heat) to sound

• sound to electric/electricity

Tags

NGSS.MS-PS1-4

Which of these best represents the following energy transformation:

CHEMICAL TO ELECTRIC TO MAGNETIC

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Tags

NGSS.MS-PS3-5

When a battery runs out, what is happening?

• a circuit becomes disconnected and the energy transforms back into chemical energy

• all light energy transforms into heat energy

• all chemical energy in the battery is transformed into other forms of energy

• all heat energy transforms into light energy

In our memory tools we learned that MOTOR "MAKES" MECHANICAL. Since generators are the opposite, __________.

• generators transform thermal energy into mechanical energy

• generators transform electrical energy into heat energy

• generators transform nuclear energy into mechanical energy

• generators transform mechanical energy into electrical energy

Tags

NGSS.HS-PS3-3