Sound Waves (15/16)

Question 1

what kind of wave is a sound wave

Answer 1

longitudinal

Question 2

what is infrasonic/ultrasonic

Answer 2

infrasonic- below human threshold for hearing
ultrasonic- above human threshold for hearing

Question 3

Loudness/volume/pitch

Answer 3

loudness- how humans perceive amplitude of wave, not actual wave
volume- how much energy is being produced
pitch- frequency

Question 4

node/antinode

Answer 4

node-no motion
antinode- all the motion

Question 5

how much do you add every time you go to next harmonic

Answer 5

1/2 a harmonic

Question 6

What are on ends of string resonator

Answer 6

string will end with a node on each side

Question 7

what are on ends of open-end resonator

Answer 7

antinodes on each end

Question 8

Bernulli’s principle

Answer 8

fast moving fluids produce low pressure

Question 9

speed of sound at room temp (20)

Answer 9

343 m/s

Question 10

what’s on the ends of closed-end resonator

Answer 10

antinode on one side, node on the other side