Sound Waves

Question 1

Define sound wave

Answer 1

Sound is a vibration that moves as a wave of pressure and displacement, through a medium

Question 2

Define compression

Answer 2

When the sound waves are closer together

Question 3

Define rarefaction

Answer 3

When the waves are further apart

Question 4

What is amplitude of a sound wave?

Answer 4

The volume

Question 5

What is frequency of a sound wave?

Answer 5

The pitch

Question 6

What is wavelength of a sound wave?

Answer 6

The pitch

Question 7

What is the formula for determining the speed of sound?

Answer 7

Sp = d/t
Speed = distance / time

Question 8

Define ultrasound

Answer 8

A sound at a very high pitch (greater than 20 000 hz)

Question 9

Define echo

Answer 9

Reflection of sound that arrives at the listener with a delay