Electromagnetic Radiation

A vibrating electric charge produces a(n) ______.

• sound wave

• heat wave

• compression wave

• electromagnetic wave

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NGSS.HS-PS4-3

Electromagnetic waves can behave as particles that are called ______.

• photons

• protons

• electrons

• neutrons

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NGSS.HS-PS4-3

Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different parts of a house. At each part of the house,Joseph used a different antenna. The experiment could have been improved by_________.

• testing reception of a different channel during each trial

• using the same antenna during each trial

• measuring the antenna length in centimeters

• measuring the distance to the television station

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NGSS.HS-PS4-5

NGSS.HS-ETS1-3

Rahim heated some leftovers in a microwave oven. He noticed that although the food got hot, the inside of the microwave oven did not. This happens because _______.

• the walls of the microwave oven are good heat insulators

• there is no air in a microwave oven

• the fan in the microwave oven keeps it cool

• microwaves heat by interacting with water molecules

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NGSS.HS-PS4-3

What is true of visible light in comparison to other kinds of electromagnetic waves?

• Visible light travels faster in a vacuum.

• Visible light has a lower frequency than X-rays.

• Visible light has a lower frequency than microwaves.

• Visible light has only one frequency.

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NGSS.HS-PS4-1

As the frequency of an electromagnetic wave increases, its wavelength

• becomes larger

• becomes smaller

• stays the same

• does not change

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NGSS.HS-PS4-1

You can most effectively vibrate the electric fields of water molecules using

• radio waves

• infrared waves

• ultraviolet waves

• microwaves

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NGSS.HS-PS4-4

Which of the following uses radio waves?

• radar

• radiation therapy

• X-ray machine

• CD-ROM

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NGSS.HS-PS4-5

If you arranged the list of electromagnetic waves shown in order from shortest to longest wavelength, which would be last on the list?

• gamma rays

• radio waves

• ultraviolet rays

• visible light

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NGSS.HS-PS4-1

Which electromagnetic waves are most similar in length to microwaves?

• gamma rays

• infrared waves

• ultraviolet waves

• visible light