Chapter 10 Vocab Flashcards Preview

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Flashcards in Chapter 10 Vocab Deck (19):
0

Amplify

To make louder or greater

1

Eardrum

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

2

Cochlea

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

3

Frequency

Number of wavelengths that pass a fixed point in a second

4

Intensity

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

5

Loudness

Human perception of sound volume, depends on intensity

6

Decibel

Unit of measure for sound intensity

7

Pitch

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

8

Doppler effect

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

9

Resonance

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

10

Music

Collection of sounds deliberating using in regular patterns

11

Sound quality

Results of the difference between the same pitch and loudness

12

Overtone

Vibration whose frequency is a multiple of the fundamental frequency

13

Resonator

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

14

Echo

Reflection of a sound

15

Acoustics

The study of sound

16

Echolocation

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

17

Sonar

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

18

Ultrasound

Sound waves that have frequencies about 20 thousand hertz.