Energy Transfers and Transformations

The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —

• Solar

• Light

• Thermal

• Mechanical

The sun provides ____________ and ____________ energy that can be harnessed and used for solar power.

• sound, mechanical

• heat, sound

• light, mechanical

• heat, light

Energy can not be _________ or ___________.

• Transferred, transformed.

• Heat, light

• Created, destroyed

• Used, transferred

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Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken.

• Water heated by the sun evaporates.

• A plant makes sugar in the sunlight.

• A battery causes a buzzer to vibrate.

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Energy transformations occur when...

• energy is created through conduction

• energy changes from one form to another

• two forces slide together that are touching

• a chemical reaction takes place

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As the radiometer was held near the heat lamp what energy transformation occurred?

• light to electrical

• mechanical to thermal

• thermal to mechanical

• potential to kinetic

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At which point is potential energy greatest?

• W

• X

• Y

• Z

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Where is potential energy converting to kinetic energy

• D-G

• C-F

• A-D

• A-G

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What is the unit of energy?

• Watt (W)

• Newton (N)

• Joule (J)

• Kilogram (kg

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light

• Electrical to chemical

• Electrical to light

• Chemical to electrical