sound review

Sound is first caused by...

• air

• vibrations

• instruments

• movement

ALL sounds are made because of...

• gravity

• air particles

• vibrations

• heat

What causes sound to be heard?

• something moving

• A strong enough vibration

• an object moving through the air

• light energy

Which of these is NOT a medium of sound?

• light

• air

• wood

• metal

What is rapid (quick) back and forth movement called?

• Pitch

• Volume

• Vibrations

• Energy

1.  Without matter, sound waves could not travel.

• True
• False

The loudness of a sound is directly related to the wave's _____.

• wavelength

• frequecy

• rest position

• amplitude

Tags

NGSS.MS-PS4-1

The unit Hertz is used to measure the waves _______.

• frequency

• wavelength

• loudness

• amplitude

______________ of waves is measured in decibels. (dB)

• frequency

• pitch

• wavelength

• loudness

High pitch sound is the same with high frequency sound

• true

• false