Exploring Sound Waves and Vibrations for Kids

Why couldn't Jenny hear the young man initially?

• She was talking to someone else.

• She was not paying attention.

• She was too far away.

• The sound did not travel to her.

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What happens when the strings of a guitar are pressed?

• They produce light.

• They stop moving.

• They create a sound.

• They change color.

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What is the term used to describe the back and forth movement of strings?

• Rotation

• Oscillation

• Translation

• Vibration

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What did the young man use to demonstrate sound waves with paper?

• He crumpled the paper.

• He moved the paper back and forth.

• He folded the paper.

• He tore the paper.

What are the ripples in the lake an example of?

• Heat waves

• Water waves

• Sound waves

• Light waves

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What did the magic glasses allow the young man to see?

• Water waves

• Sound waves

• Light waves

• Air particles

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What happens when the triangle is hit with the magic wand?

• It creates sound waves.

• It stops vibrating.

• It produces light.

• It changes color.

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How do sound waves reach our ears?

• They travel through light.

• They travel through water.

• They travel through air and vibrate the eardrum.

• They travel through solid objects.

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Why couldn't the young man hear Jenny when she was far away?

• She was behind a wall.

• The sound waves faded and disappeared.

• She was not speaking.

• She was whispering.

What happens if the vibration of an object is higher?

• The sound waves disappear.

• The sound waves are bigger and cover more distance.

• The sound waves are smaller.

• The sound waves change direction.

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