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Vocabulary
Waves
Waves Again
Sound
Random Review
100

The height of a wave.

Amplitude

100
Waves transmit ___________ not matter.
Energy
100

The lowest point from rest on a wave is called the ________.

Trough

100

Shorter wavelengths means this kind of frequency (HIGHER or LOWER)

higher

100
In which state of matter are the particles of a substance closely packed, but still vibrating?
A solid
200
The number of complete cycles of a wave in a given time.
Frequency
200
In which type of wave are the particles displaced perpendicular to the travel of the wave?
Transverse
200

This is the unit for measuring intensity or loudness of sound

Decibel

200
Sound travels fastest through substances in which state of matter?
Solid
200

Number of waves that pass a point per unit of time

frequency

300

The wavelength is the distance between 2 points of which 2 parts of a wave?

crest point and trough

300

The greater the amplitude the __________ the sound

Louder

300

This is a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium.

Wave

300

There is no sound in a _______

vacuum

300

Does sound travel fastest in hot air or cold air?

Hot air

400

What is the unit of measurement for frequency?

Hertz

400

The highest point of a wave is also known as its what?

crest

400
A sound wave is an example of which type of wave?
Longitudinal
400

Sound travels through these 3 states of matter.

solids, liquids and gases

400

Why does sound travel fastest in solids?

Because the particles in solids are very tightly packed which means vibrations through a solid are more easily passed from particles to particle. 

500
The material through which mechanical waves travel.
A medium
500

This is a measure of how high or low a sound is...

Pitch

500
The distance from one point on a wave to an identical point on the next wave is known as the wave's what?
Wavelength
500

What is the formula to calculate the speed of a wave?

frequency X wavelength

500

The audible range of pitch that can be heard for humans is __________

20 Hz to 20,000 Hz