Sound Flashcard Review

Front

Sounds with frequencies below the range of human hearing are called

Back

infrasound.

Front

Frequency is measured in_____________.

Back

Hertz.

Front

A reflected sound wave is called an

Back

echo.

Front

Sound is a disturbance that

Back

does travel through a medium.

Front

What could cause you to NOT hear an echo?

Back

soft material.

Front

What is the range of human hearing?

Back

20 Hz to 20,000 Hz.

Front

What is resonance in sound?

Back

The amplification of sound when an object vibrates at its natural frequency.

Front

What is the speed of sound in air at room temperature?

Back

Approximately 343 meters per second.

Front

What is ultrasound?

Back

Sounds with frequencies above the range of human hearing.

Front

What is reverberation?

Back

The persistence of sound in a particular space after the original sound is produced.