Gravity & Kinetic Energy Inv. 3 Test

What is kinetic energy?

• The energy of motion

• The energy of position

• the energy of sound

• the energy of heat

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is potential energy?

• The energy of motion

• The energy of position

• the energy of sound

• the energy of heat

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NGSS.MS-PS3-2

What is a joule?

• A unit of kinetic energy

• A unit of mass

• A unit of force

• The energy of motion

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NGSS.MS-PS3-1

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NGSS.MS-PS3-5

This diagram shows a marble rolling down a ramp. In which position does the marble have the greatest potential energy?

• A

• B

• C

• It has the same potential energy in all positions

Tags

NGSS.MS-PS3-2

This diagram shows a marble rolling down a ramp. In which position does the marble have the greatest kinetic energy?

• A

• B

• C

• It has the same kinetic energy in all positions

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What happens to kinetic energy as mass increases? (hint: think of what happened when we added more marbles to the ramp)

• As mass increases, kinetic energy increases

• As mass increases, kinetic energy decreases

• Mass has no effect on the kinetic energy of an object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

In the marble lab, you let go of the marble and it moved down the ramp. The potential energy transferred into what type of energy?

• gravitational potential energy

• kinetic energy

• sound energy

• heat energy

Tags

NGSS.MS-PS3-1

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In the marble lab, the cube slowed to a stop. Where did the energy in the cube transfer to?

• heat energy (friction)

• gravitational potential energy

• kinetic energy (in the table)

• nothing, the energy is just lost

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Fill in the blanks to create a true statement.

As the mass of an object _____, kinetic energy _____.

• increases, increases

• increases, decreases

• decreases, increases

Tags

NGSS.MS-PS3-1

Fill in the blanks to create a true statement.

As the speed of an object _____, kinetic energy _____.

• decreases, decreases

• increases, decreases

• decreases, increases

Tags

NGSS.MS-PS3-1