The Nature of Electromagnetic Waves

Which of the following electromagnetic waves has the lowest energy?

• gamma ray

• infrared wave

• visible light wave

• microwave

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NGSS.HS-PS4-4

Cell phones, televisions and radios use ______radiation

• radio wave

• tv wave

• Gamma wave

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NGSS.MS-PS4-2

These are the only wavelengths the human eye can see:

• X-rays

• Radio Waves

• Visible Light

• Gamma Waves

The number of wave cycles to pass a given point per time unit

• Gamma Waves

• Meters

• Frequency

• Radio Waves

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NGSS.MS-PS4-1

High frequency equals

• high energy

• low energy

• no change in energy

• none of the above

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NGSS.HS-PS4-1

The speed of light (radiation) is _________km/second.

• 3,000

• 300

• 300,000

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NGSS.MS-PS4-1

What are the two kind of fields that make up an electromagnetic wave?

• Electric and sound fields

• Electric and magnetic fields

• Magnetic and longitudinal fields

• Magnetic and sound fields

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NGSS.HS-PS4-3

A(n) _____ consists of changing electric and magnetic fields.

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is the speed of electromagnetic waves in a vacuum?

• About 5,170 kilometers per second

• About 1,590 kilometers per second.

• About 343 kilometers per second.

• About 300,000 kilometers per second.

The energy transferred by electromagnetic waves is called _____.

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NGSS.HS-PS4-5