Sound

Question 0

Motion that repeats at a constant rate

Answer 0

Periodic motion

Question 1

Periodic changes transmitting energy from one place to another

Answer 1

Waves.

Question 2

The form of energy detected by our ears.

Answer 2

Sound

Question 3

True or False: the affect of friction on periodic motion is called resonance.

Answer 3

False.

Question 4

True or False: the length of a wave cycle is wavelength.

Answer 4

True.

Question 5

True or False: the rate at which cycle repeat is called frequency.

Answer 5

True.

Question 6

Damping is…

Answer 6

The effect of friction on periodic motion.

Question 7

What is a transverse wave?

Answer 7

If the vibration is at a right angle to the direction of travel

Question 8

What is the meaning up crest and trough?

Answer 8

Crest-the highest point of a wave

Trough- the lowest point of a wave

Question 9

Define wavelength.

Answer 9

The distance between crest to crest & trough to trough.

Question 10

The term for how high or how low the sound is.

Answer 10

Pitch.

Question 11

The response of your ear to the intensity of a sound wave.

Answer 11

Loudness.

Question 12

A measure of the power contained in an acoustic wave.

Answer 12

Intensity.

Question 13

Loudness is measured in units called…

Answer 13

Decibels.

Question 14

The study of controlling the sounds that reach our ears.

Answer 14

Acoustics.

Question 15

The particular sound of an instrument.

Answer 15

Quality.

Question 16

Frequency is measure in units called…

Answer 16

Hertz.

Question 17

A pendulum hanging straight down is its….

Answer 17

Rest position.

Question 18

The tendency of a string being returned to its rest position.

Answer 18

Restoring force.

Question 19

True or False: resonance is the opposite of damping.

Answer 19

True.