Unit 06: Sound Practice

Front

What is a vibration?

Back

A quick movement back and forth.

Front

What is sound?

Back

Energy that you can hear.

Front

How does sound travel through air?

Back

By vibrating air molecules.

Front

What is an example of sound being used in everyday life?

Back

A doorbell ringing.

Front

What is an application of sound waves in medicine?

Back

Ultrasound scans.

Front

What is the speed of sound in air?

Back

Approximately 343 meters per second at room temperature.

Front

What is pitch?

Back

The highness or lowness of a sound.

Front

What is a sound wave?

Back

A wave that is created by vibrating objects and travels through a medium.

Front

What is an echo?

Back

A sound that is reflected off a surface and heard again.

Front

What is frequency?

Back

The number of vibrations or cycles per second in a sound wave.