Forms of Energy

Which picture shows the transformation of electrical energy into mechanical energy?

• Q

• R

• S

• T

The pictures show a toaster, a crane, a buzzer, and a flashlight. Which picture best shows electrical energy being converted into thermal energy?

• W

• X

• Y

• Z

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NGSS.MS-PS3-3

What transformation occurs when a telephone rings?

• Electrical energy is transformed into kinetic energy.

• Electrical energy is transformed into sound energy.

• Potential energy is transformed into sound energy.

• Sound energy is transformed into thermal energy. Sound energy is transformed into thermal energy.

What kind of energy transformation is taking place when a hair dryer is used?

• Mechanical energy is being transformed into thermal energy.

• Sound energy is being transformed into electrical energy.

• Magnetic energy is being transformed into wind energy. Magnetic energy is being transformed into wind energy.

• Electrical energy is being transformed into thermal energy.

Tags

NGSS.MS-PS3-5

Which of the following is an example of chemical energy being transformed into thermal energy?

• An electric fan moving air from one location to another

• The wind turning a wind turbine to produce electricity

• A car's engine burning gasoline to make the car run

• The steam in a steam engine powering a locomotive The steam in a steam engine powering a locomotive

Photosynthesis allows plants to convert, store, and use energy. Which choice lists the types of energy involved in photosynthesis and the order in which they generally change?

• Light energy → chemical energy

• Light energy → thermal energy

• Thermal energy → chemical energy

• Chemical energy → thermal energy

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

An interesting thing about energy is that it cannot be created or destroyed. It simply changes from one form to another. What energy change takes place when using a hair dryer?

• Sound energy changes to chemical energy

• Heat energy changes to electrical energy

• Light energy changes to mechanical energy

• Electrical energy changes to heat energy

At the South Texas Nuclear Power Plant, uranium atoms are split in order to create heat. The heat is used to make steam, which turns a generator to make electricity. What energy changes take place during this process?

• Nuclear energy to heat energy to mechanical energy to electrical energy

• Mechanical energy to nuclear energy to heat energy to light energy

• Chemical energy to nuclear energy to electrical energy to heat energy

• Mechanical energy to heat energy to chemical energy to electrical energy Mechanical energy to heat energy to chemical energy to electrical energy

Tags

NGSS.HS-PS1-8

A boy skating downhill on a skateboard is transforming —

• potential energy into kinetic energy.

• kinetic energy into potential energy.

• thermal energy into potential energy.

• kinetic energy into chemical energy. kinetic energy into chemical energy.

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NGSS.MS-PS3-5

NGSS.MS-PS3-4

As the boy moves faster down the hill, the wheels and bearings become warm. What other energy transformation does this warming suggest?

• Some of the electrical energy transformed into potential energy.

• Some of the chemical energy transformed into potential energy.

• Some of the thermal energy transformed into kinetic energy.

• Some of the mechanical energy transformed into thermal energy.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4