Section 1

Question 1

Sound is?

Answer 1

A class of Physical kinetic energy called acoustic energy

Question 2

Acoustical energy consists of

Answer 2

Fluctuating waves of pressure in a physical medium-usually air

Question 3

1 cycle of 1 acoustical pressure wave consists of

Answer 3

1/2 compression(higher pressure)

1/2 rarefaction(lower pressure)

Question 4

Higher amplitude=higher(louder)or lower sound(softer)

Answer 4

Higher

Question 5

What is cps? What’s the cps range for sound

Answer 5

Cycles per second,20-20,000

Question 6

What is frequency?what is the general correlation between frequency and pitch?

Answer 6

Rate of air pressure fluctuation,higher frequency=higher pitch

Question 6

Cps is = to_______

1 cps=________

Answer 6

Hertz (hz)

1 hz

Question 7

What is the period of the wave?how is a waves period expressed?

Answer 7

The amount of time required for a complete cycle of a sound wave.

In seconds per cycle

Question 8

What’s the equation for the periods of a wave

Answer 8

Periods=1/frequency