Physics

Question 1

Amplitude?

Answer 1

refers to the magnitude of compression and expansion of a sound wave

Question 2

Frequency?

Answer 2

periodic vibration, unit Hz. Determined by the pitch

Question 3

Wavelength?

Answer 3

is a measure of distance btw 2 identical peaks in a wave

Question 4

Formulae of wavelenght

Answer 4

lambda = the speed/the frequency

Question 5

Timbre?

Answer 5

2 sound waves of even the same amplitude and frequency can produce completely different sound

Question 6

In phase?

Answer 6

2 waves of the same frequency are said to be in phase when their compression (positive ) and rarefaction (negative ) half cycles coincide exactly in time and space.

Question 7

Out of phase?

Answer 7

when the positive half cycle of one coincides with the negative cycle of the other

Question 8

Comb filter?

Answer 8

adds a delayed version of a signal to itself causing constructive and destructive interference

Question 9

Fletcher and Munson?

Answer 9

indicate the ear’s sensitivity to different frequencies at various levels.