Waves

Question 1

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

Answer 1

Wave

Question 2

The matter that the waves travel through.

Answer 2

Medium

Question 3

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

Answer 3

Transverse wave

Question 4

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

Answer 4

Compressional wave

Question 5

Compressional waves and when a noise is made, nearby air molecules are pushed together by the vibrations.

Answer 5

Sound waves

Question 6

A disturbance that travels through a body of water, caused by water particles, which transfer energy through the medium without the water moving itself.

Answer 6

Water waves

Question 7

A mechanical wave of acoustic energy that travels through the Earth, which is also resulted from an earthquake.

Answer 7

Seismic waves

Question 8

The transverse wave that has
alternating high points.

Answer 8

Crests

Question 9

The transverse wave that has alternating low points.

Answer 9

Troughs

Question 10

The less-dense region of a compressional wave.

Answer 10

Rerefaction

Question 11

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

Answer 11

Wavelength

Question 12

The number of wavelengths that pass a fixed point each section.

Answer 12

Frequency

Question 13

Related to the energy carried by a wave.

Answer 13

Amplitude

Question 14

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

Answer 14

Refraction

Question 15

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

Answer 15

Diffraction

Question 16

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

Answer 16

Interference

Question 17

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

Answer 17

Standing wave

Question 18

The process by which an object is made to vibrate by absorbing energy at its natural frequencies.

Answer 18

Resonance

Question 19

A tough membrane about .1mm thick.

Answer 19

Eardrum

Question 20

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

Answer 20

Cochlea

Question 21

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

Answer 21

Intensity

Question 22

The human perception of sound intensity.

Answer 22

Loudness

Question 23

Each unit on the scale for sound intensity.

Answer 23

Decibel

Question 24

How high or low it seems to be.

Answer 24

Pitch

Question 25

Sound frequencies above 20,000 Hz, which most people can’t hear.

Answer 25

Ultrasonic

Question 26

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

Answer 26

Doppler effect

Question 27

Made of sounds that are deliberately used in a regular pattern.

Answer 27

Music

Question 28

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

Answer 28

Sound quality

Question 29

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

Answer 29

Overtone

Question 30

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

Answer 30

Resonator

Question 31

The study of sound.

Answer 31

Acoustics

Question 32

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

Answer 32

Echolocation

Question 33

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

Answer 33

Sonar