SOUND (PRE)

Sound waves are all of the following EXCEPT

• it requires a medium
•  high and low
• soft or loud
• only high frequency

_________ is a form of energy that travels through the air. 

• sound
• volume
• energy
• wave

___________ is made when something vibrates

• light
• sound
• drum
• pounding

The volume of a sound is measured in units called ________

• decibels
• liters
• sound waves
• inches per minute

Sound travels through the air as waves.

• True
• False

A sound with a high frequency has a _____ pitch. A sound with a ____ frequency has a low pitch.

• high, low
• low, high
• medium, high
• high, medium

A sound that bounces off a surface is called an ________.

• loud sound
• echo
• repeat
• quiet sound

Matter that carries sound waves is called a _________

• low
• high
• medium
• surface

The ______ of a sound depends on the medium through which it's moving.

• pitch
• vibration
• speed
• sound

the number of vibrations per second

• vibration
• volume
• pitch
• frequency