Equations
Vocab
Light
Sound
100

What is the wave speed of a wave with a frequency of 5 Hz and a wavelength of 10 m?

50 m/s
100

What is the crest?

The highest point on the wave.

100

What is the speed of light?

300,000,000 m/s

100

Are sound waves mechanical or electromagnetic?

Mechanical

200

What is the wavelength of a wave with a wave speed of 60 m/s and a frequency of 3 Hz?

20 m

200

What is the trough?

The lowest point on a wave.

200

True or False... Light waves need a medium to travel.

False

200

What place makes it impossible for sound waves to travel through?

Outer Space

300

What is the frequency of a wave with a wave speed of 100 m/s and a wavelength of 50 m?

2 Hz

300

What is amplitude?

The measure of how far a wave moves from its resting point.

300

What happens to the speed when light waves encounter a medium?

It slows down
300

What makes a sounds pitch higher or lower?

The frequency.

400

What is the wave speed of a wave with a frequency of 7 Hz and a wavelength of 60 m?

420 m/s

400

What is wavelength?

The distance from a point on one wave to an identical point on the next wave.

400

Are light waves mechanical or electromagnetic?

Electromagnetic

400

What happens when you raise the amplitude on a wave?

It raises the volume.

500

What is the wave speed of a wave with a frequency of 12 Hz and a wavelength of 7 m?

84 m/s

500

What is a vacuum?

The absence of any matter in a space.

500

What are some examples of waves on the EM spectrum?

visible light waves, radio waves, X - rays, etc.

500

What is the cause of sound?

Vibrations

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