Wave

Question 1

Wave

Answer 1

A repeating distance or movement that transfers energy through matter or space.

Question 2

Medium

Answer 2

The matter the waves travel through.

Question 3

Transverse Wave

Answer 3

Matter in the medium moves back and forth at right angles to the direction that the wave travels.

Question 4

Compressional Waves

Answer 4

Matter in the medium moves back and forth along the same direction that the wave travels.

Question 5

Sound Waves

Answer 5

These are COMPRESSIONAL waves

Question 6

Water Waves

Answer 6

Not purely transverse waves, water moves up and down as waves go by.

Question 7

Seismic Waves

Answer 7

A combination of compressional and transverse waves.

Question 8

Crests

Answer 8

An alternating high point

Question 9

Troughs

Answer 9

An alternating low point.

Question 10

Rerefraction

Answer 10

A less dense region of a compressional wave.

Question 11

Wave Length

Answer 11

A distance between one point on a wave and the nearest point just like it.

Question 12

Frequency

Answer 12

The number of wave lengths that pass a fixed point each second.

Question 13

Amplitude

Answer 13

Related to energy carried by a wave.

Question 14

Refraction

Answer 14

The bending of a wave caused by a change in its speed as it moves from one medium to another.

Question 15

Diffraction

Answer 15

Occurs when an object caused a wave to change direction and bend around it.

Question 16

Interference

Answer 16

When two or more waves overlap and combine to form a new wave.

Question 17

Standing Wave

Answer 17

A special type of wave pattern that forms when waves in equal wavelength and amplitude, but travelling in opposite directions, continuously interfere.

Question 18

Resonance

Answer 18

When an object is made to vibrate by absorbing energy at its natural frequencies.

Question 19

Eardrum

Answer 19

A tough membrane about 0.1 mm thick.

Question 20

Cochlea

Answer 20

A spiral shaped structure that is filled with liquid and contains tiny hair cells.

Question 21

Intensity

Answer 21

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

Question 22

Loudness

Answer 22

The human perception of sound intensity.

Question 23

Decibel

Answer 23

Each unit on the scale for sound intensity.

Question 24

Pitch

Answer 24

How low or high a sound seems to be.

Question 25

Ultrasonic

Answer 25

Sound frequencies most people cannot hear.

Question 26

Doppler Effect

Answer 26

The change in pitch or wave frequency due to moving wave source.

Question 27

Music

Answer 27

Noise that has random patterns and pitches.

Question 28

Sound Quality

Answer 28

Describes the differences among sounds of the same pitch and loudness.

Question 29

Overtone

Answer 29

A vibration whose frequency is a multiple of the fundamental frequency.

Question 30

Resonator

Answer 30

A hollow chamber filled with air that amplifies sound when air inside of it vibrates.

Question 31

Acoustics

Answer 31

The study of sounds.

Question 32

Echolocation

Answer 32

The process of locating objects by emitting sounds and interpretation the sound waves that are reflected back.

Question 33

Sonar

Answer 33

A system that uses the reflection of underwater sound waves to detect objects.