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science

Grade-4-

Easy

Question

Vibrating objects are the source of __________ energy.

Light
Sound
Heat
Mechanical

hint Hint:

Vibrating objects are the source of sound energy.

The correct answer is: Sound

Sound is a type of energy.

Vibrating objects produce souns waves which passes on the vibrations to the nearby molecules.

These vibrations reach the eardrums which make the eardrums vibrate.

Finally sounds are audible.

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