Energy Transformations Quiz

To produce light, the atoms inside a light bulb transform electrical energy into what other kind of energy?

• heat

• chemical

• mechanical

• electromagnetic

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NGSS.MS-PS4-1

Coal-powered plants are designed specifically to convert

• electrical energy to heat energy

• chemical energy to electrical energy

• electrical energy to radiant energy

• kinetic energy to potential energy

Which energy transformation takes place in a gasoline lawn mower?

• potential energy to electrical energy

• electrical energy to potential energy

• kinetic energy to chemical energy

• chemical energy to mechanical energy

Which statement is true concerning energy?

• Light bulbs convert some electrical energy to thermal energy.

• Kinetic energy disappears as a box slides across a rough floor.

• Gravitational (potential) energy is lost as a car rolls down a hill.

• Energy that moves through a wire is destroyed when a circuit is closed.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

What has happened to the energy of the ball when it has come to a stop?

• The potential energy of the ball has decreased.

• The kinetic energy of the ball has increased.

• The potential energy has been transformed into kinetic energy.

• The potential energy of the ball has increased during energy transfer.

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NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Windmills are shown in the illustration below. Which energy conversion is taking place as the blades of the windmills rotate?

• mechanical to electrical

• potential to mechanical

• mechanical to chemical

• chemical to potential

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NGSS.MS-PS3-5

The frequency of a wave is measured in

• hertz

• meters

• hertz/second

• meters/minute

Tags

NGSS.HS-PS4-1

How does the speed of radio waves compare with the speed of infrared waves?

• Radio waves travel faster.

• Infrared waves travel faster.

• They both travel at the same speed.

• The wave speed varies with their frequency.

Through which material would sound travel the fastest?

• cork

• water

• air

• steel

Tags

NGSS.MS-PS4-2

What is the frequency of a wave that travels 20 m/s with a wavelength of 200 meters?

• 0.10 Hz

• 4.0 Hz

• 10 Hz

• 4000 Hz

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NGSS.HS-PS4-1