Sound Waves

When you speak to a friend on the phone the vibrations caused by your voice are

A sound wave transfers kinetic energy by

High-Decibel sounds can hurt your hearing because the

To raise the pitch of the sound caused by a sound wave,

When a motorcycle is being driven toward you it seems to have ____ than one being driven away.

A telephone works by converting the ______ caused by sound waves into electrical signals.

A rock star plugs a guitar into an amplifier. The amplifier

Intense sounds can damage your hearing by

A sound wave has a frequency of 300hertz. How many wavelength passes a fixed point in 1 sec?

Your vocal cords produce sound in much the same manner as a

Animals such as bats use _____ to find food by bouncing sound waves off their prey.

Two notes have the same pitch but different timbres. This is because they have different

The frequency of a wave is measured in

Changing the length of a string or an air column affect the ______ of a musical instrument.

Instruments that use echoes to find food on the sea floor are known as

Musical instruments produce a specific kind of sound when they vibrate at their natural

Sound waves are caused by

The frequency of a sound wave determines the sound's

To increase the loudness of a sound, you should

The intensity of a sound wave is determined by

A sound wave is a

Sound waves transfer energy by

Doctors use ______ to check the health of fetuses during pregnancy.

Your hearing can be damaged by

Nina listens to an ambulance as it travels past her. The sound of the siren