Chap 16

Question 1

Amplitude

Answer 1

Maximum displacement from zero of any periodic phenomenon.

Question 2

Frequency

Answer 2

Number of occurrences in a unit of time.

Question 3

What kind of wave is sound?

Answer 3

Longitudinal.

Question 4

Resonance

Answer 4

Large motion of a system due to excitation.

Question 5

Standing Wave

Answer 5

A wave whose nodes are stationary.

Question 6

Node

Answer 6

Point in a medium or field that remains unchanged when acted upon by more than one disturbance simultaneously.

Question 7

Antinode

Answer 7

Point at which the substance is at maximum displacement when a wave passes through.

Question 8

Beat

Answer 8

Oscillation in amplitude of complex wave.

Question 9

Consonance

Answer 9

Complex sound wave perceived as chord.

Question 10

Dissonance

Answer 10

Complex sound wave perceived as unpleasant.

Question 11

Fundamental Frequency

Answer 11

Lowest frequency sounded by an instrument.

Question 12

Overtones

Answer 12

Sound waves of higher frequency than the fundamental.

Question 13

Speed of Sound in Air at Room Temp.

Answer 13

343 m/s

Question 14

Room Temp.

Answer 14

20C or 68F

Question 15

Closed Pipe Resonances

Answer 15

1/4 3/4 5/4 …

Question 16

Open Pipe Resonances

Answer 16

1/2 2/2 3/2…

Question 17

Beat Frequency

Answer 17

F1-F2

Question 18

Velocity at Different Temp.s

Answer 18

v=343 m/s + (.60 x *C)

Question 19

Doppler Shift

Answer 19

Decrease (or increase) in wavelength as the scourge and detector of waves move toward (or away from) each other.