Waves and Sound

Question 1

What is sound?

Answer 1

Sound is a longitudinal waves, are vibrational energy. A series of compressions and rarefactions (increase and decrease in pressure). Measured in Pascals - N/m2.

Question 2

What affect does changing the frequency to the pitch?

Answer 2

An increased in frequency gives higher pitched sound. Reduce frequencies produce lower pitched sound.

Question 3

How does Amplitude affects volume?

Answer 3

A higher amplitude/pressure produce louder sounds. Lower amplitude/pressure are quieter