Science Ch. 6 Test Review

Sound Waves

100

Sound is a form of _____ that you can hear.

Energy

200

Sound waves travel at the same/different speeds through different types of matter.

Different

300

Sound waves spread out as they move away from the _______ of their vibrations.

Source

400

From how many directions do sound waves move out from a source?

All directions

500

Which state of matter does sound travel fastest through? Slowest?

solid, gas

Reflecting Sound

100

Sound is caused by a moving object that is _____.

Vibrating

200

Large, hard, smooth surfaces ______ sound.

Reflect

300

Rough, soft, uneven surfaces _______ sound.

Absorb

400

A sound wave that reflects clearly enough to be heard again is called ______.

An echo

500

What are the three ways you can make an object vibrate?

hit, pluck, blow

Characteristics of Sound

100

How loud or soft a sound is

Volume

200

How high or low a sound is

Pitch

300

The characteristic of sound that helps us identify different people's voices or different kinds of instruments.

Quality

400

Which characteristic of sound depends on how much force is used to make an object vibrate?

Volume

500

Which characteristic of sound depends on how fast the source of the sound is vibrating?

Pitch