Law of Conservation of Energy

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

Tags

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-PS3-2

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.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

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.

Tags

NGSS.MS-PS3-4

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

Tags

NGSS.MS-PS3-5

Which diagram BEST represents a convection heating current?

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Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-3

Within the alarm clock seen here, energy is transformed. It is time to get up! The alarm clock goes off. What are the energy transformations taking place in your alarm clock?

• electrical to magnetic to sound

• electrical to mechanical to sound

• electrical to mechanical to light

• chemical to electrical to mechanical

Tags

NGSS.HS-PS3-3

Muscles convert chemical energy into

• light energy.

• nuclear energy.

• mechanical energy.

• electromagnetic energy.

Tags

NGSS.HS-PS3-3

What form of energy does a compressed spring have?

• heat energy

• kinetic energy

• chemical energy

• potential energy

Tags

NGSS.MS-PS3-2