Light and Sound Waves Review

Front

What is the wavelength of infrared waves compared to ultraviolet waves?

Back

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

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NGSS.HS-PS4-1

Front

How does temperature affect the speed of sound in air?

Back

Sound travels faster in warm air than in cold air.

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NGSS.HS-PS4-1

Front

Why do we not know if the sun has disappeared immediately?

Back

It takes 8 minutes for light to travel from the sun to Earth.

Front

What is the main difference between radio waves and light waves?

Back

The main difference is their wavelength.

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NGSS.HS-PS4-1

Front

Which of the following is NOT an electromagnetic wave?

Back

Sound is NOT an electromagnetic wave.

Front

Define electromagnetic waves.

Back

Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields.

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NGSS.HS-PS4-3

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What type of wave is sound?

Back

Sound is a mechanical wave that requires a medium (solid, liquid, or gas) to travel.

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NGSS.MS-PS4-2

Front

What happens to the wavelength of a wave as its frequency increases?

Back

As the frequency of a wave increases, its wavelength decreases.

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NGSS.HS-PS4-1

Front

What is the relationship between frequency and energy in electromagnetic waves?

Back

Higher frequency electromagnetic waves carry more energy.