sound

Question 1

as the temperature of the air decreases the speed of sound in the air

Answer 1

decreases

Question 2

in general, the speed of sound does what as the density of the phase of matter increases

Answer 2

it increases

Question 3

sound waves cannot travel through a

Answer 3

vacuum

Question 4

a 256 Hz tuning fork and a 512 tuning fork are struck at the same time. if they’re both 11 m away from you which sound will reach your ear first

Answer 4

they will arrive at the same time

Question 5

speed of sound in the air at 71 degrees C

Answer 5

372 m/s

Question 6

tuning forks of the same frequency make eachother vibrate because of

Answer 6

resonance

Question 7

earthquake makes a house shake because of

Answer 7

forced vibrations

Question 8

difference in the sound of the same notes on two different instruments is because of

Answer 8

timbre

Question 9

frequency of 25,000 Hz is

Answer 9

an ultrasonic frequency

Question 10

sound waves are what type of wave

Answer 10

longitudinal and mechanical

Question 11

beats are caused by two similar sound waves interfering

Answer 11

constructively then destructively, repeatedly