Sound Energy

Front

What does it mean to vibrate?

Back

To vibrate is to move back and forth quickly.

Front

What causes sound?

Back

Sound is caused by vibrations.

Front

Can sound travel through liquids?

Back

False. Sound can travel through liquids.

Front

What is necessary for sound waves to travel?

Back

Without matter, sound waves could not travel.

Front

What happens if an object does not vibrate?

Back

An object that does not vibrate cannot produce sound.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What is pitch?

Back

Pitch is how high or low a sound is.

Front

What is a crest in sound waves?

Back

A crest is the highest point of a sound wave.

Front

What is a trough in sound waves?

Back

A trough is the lowest point of a sound wave.

Front

What is amplitude?

Back

Amplitude is the height of a sound wave, which determines its loudness.