Chapter 10 Vocab

Question 0

Eardrum

Answer 0

Tough membrane in the outer ear that transmits sound to the middle ear

Question 1

Amplify

Answer 1

To make louder or greater

Question 2

Cochlea

Answer 2

Spiral shaped, fluid filled structure in the inner ear that contains tiny hIr cells and converts sound waves to nerve impulses

Question 3

Frequency

Answer 3

Number of wavelengths that pass a fixed point in a second

Question 4

Intensity

Answer 4

Amount of energy that flows through a certain area in a specific amount of time

Question 5

Loudness

Answer 5

Human perception of sound volume, depends on intensity

Question 6

Decibel

Answer 6

Unit of measure for sound intensity

Question 7

Pitch

Answer 7

Pitch is the perception of how high or low a sound is

Question 8

Doppler effect

Answer 8

Change in frequency that occurs when a source is moving relative to the observer

Question 9

Resonance

Answer 9

Process by which an object is made to vibrate by aborsing energy

Question 10

Music

Answer 10

Collection of sounds deliberating using in regular patterns

Question 11

Sound quality

Answer 11

Results of the difference between the same pitch and loudness

Question 12

Overtone

Answer 12

Vibration whose frequency is a multiple of the fundamental frequency

Question 13

Resonator

Answer 13

Hollow air filled chamber that amplifies sound when the air inside it vibrates.

Question 14

Echo

Answer 14

Reflection of a sound

Question 15

Acoustics

Answer 15

The study of sound

Question 16

Echolocation

Answer 16

Process by which objects are located by emitting sounds and interpreting the reflecting sound waves

Question 17

Sonar

Answer 17

System that uses the reflection of underwater sound waves to detect object under water

Question 18

Ultrasound

Answer 18

Sound waves that have frequencies about 20 thousand hertz.