Light and Sound Waves Review

Front

What type of waves are carried by energy emitted by vibrating electric charges?

Back

Electromagnetic waves.

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Front

How long does it take for light to travel from the sun to Earth?

Back

8 minutes.

Front

What is the relationship between the wavelength of ultraviolet waves and infrared waves?

Back

The wavelength of infrared waves is longer than that of ultraviolet waves.

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NGSS.HS-PS4-1

Front

What is the source of all electromagnetic waves?

Back

Vibrating charges.

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Front

How does the speed of sound in water compare to its speed in air?

Back

The speed of sound in water is faster than in air.

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Front

What is the definition of electromagnetic waves?

Back

Waves that are propagated by the oscillation of electric and magnetic fields.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.

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NGSS.HS-PS4-1

Front

What is the difference between mechanical waves and electromagnetic waves?

Back

Mechanical waves require a medium to travel through, while electromagnetic waves do not.

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Front

What is the frequency of a wave?

Back

The number of waves that pass a point in one second.

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Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.

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