Understanding Sound

Question 1

What is frequency?

Answer 1

The amount of sound waves that pass a certain point per second.

Question 2

What is period (T)?

Answer 2

The time it takes for one wave to pass a point.

Question 3

What is the unit for period?

Answer 3

Seconds (s)

Question 4

What is the formula for period?

Answer 4

Period = 1 / Frequency

Question 5

What is the formula for period?

Answer 5

Frequency = 1/ period

Question 6

What is the formula for speed?

Answer 6

s = d/t

Question 7

What is the formula for Speed of Sound (c) at a given temp?

Answer 7

c = 331.4 + (0.607 x T)

Question 8

What is wavelength?

Answer 8

The distance a signal travels in one cycle.

Question 9

What is the formula for wavelength?

Answer 9

c = λ/ t

Question 10

What is the formula for phase difference?

Answer 10

Phase Difference = (time offset) x f x 360

Question 11

What is the most sensitive frequency range of the human ear?

Answer 11

2.5kHz to the 4kHz

Question 12

True or false.

The speed of sound is faster in cold temperatures.

Answer 12

False

Question 13

What is critical distance?

Answer 13

Critical Distance is the point where room reflections interfere with the direct sound coming from the speakers.