CONSERVATION OF ENERGY

Which of the following best represents the Law of Conservation of Energy?

• Energy CAN be created but NOT destroyed

• Energy CAN be destroyed but NOT created

• Energy can NOT be created Nor destroyed

• Energy CAN be created and CAN destroyed

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NGSS.HS-PS3-4

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

• mechanical to heat

• sound to mechanical

• potential to kinetic

• kinetic to potential

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

A ball is projected into the air. Where is potential energy the greatest?

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NGSS.MS-PS2-4

NGSS.MS-PS3-2

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

• mechanical to heat

• sound to mechanical

• potential to kinetic

• kinetic to potential

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy?

• The kinetic energy does not depend on the mass of the bowling ball.

• The kinetic energy is increasing proportional to the mass of the bowling ball.

• The kinetic energy is decreasing proportional to the mass of the bowling ball.

• The kinetic energy is increasing proportional to the square of the mass of the bowling ball.

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NGSS.MS-PS3-1

Which point on the roller coaster's path represents the maximum potential energy?

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NGSS.MS-PS3-2

As a roller coaster goes downhill

• kinetic energy is converted into potential energy.

• potential energy is converted into kinetic energy.

• electrical energy is converted into potential energy.

• potential energy is converted into electrical energy.

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NGSS.MS-PS3-2

NGSS.MS-PS3-5

When gasoline is burned in a car engine, ________ energy is converted into _________ energy.

• heat, chemical

• chemical, potential

• mechanical, chemical

• chemical, mechanical

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NGSS.MS-PS3-5

Muscles convert chemical energy into

• light energy.

• nuclear energy.

• mechanical energy.

• electromagnetic energy.

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NGSS.MS-PS3-5

What form of energy does a compressed spring have?

• heat energy

• kinetic energy

• chemical energy

• potential energy

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NGSS.MS-PS3-2