Science Chapter 4 Test Electromagnetic Waves

What speed do electromagnetic waves move at?

• The speed of sound

• The speed of time

• The speed of light

• The speed of electricity

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What allows x-rays to penetrate most matter?

• Their strong electric field

• Their strong magnetic field

• Their high energy

• Their small wavelengths

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Electromagnetic waves do not require a(n) _____ to travel through.

• Medium

• Magnetic field

• Electric field

• Photon

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What electromagnetic waves have longer wavelengths and lower frequencies than

infrared rays?

• Radio waves

• Visible light

• X-Rays

• Gamma rays

What does GPS stand for?

• Nothing, it just navigates you

• The initials of the man that made it

• Global Placement System

• Global Positioning System

Which electromagnetic waves have the longest wavelengths?

• Radio waves

• X-Rays

• Visible light

• Gamma rays

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Radar uses which type of waves?

• Microwaves

• Radio waves

• Visible light

• Infrared waves

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Satellite phones can be used anywhere in the world.

• True

• False

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Which type of electromagnetic waves give off energy often felt as heat

• Microwaves

• Visible light

• Radio waves

• Infrared waves

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Which electromagnetic waves are responsible for causing skin cancer and

damaging skin cells?

• Visible light

• Gamma rays

• Ultraviolet waves

• X-rays

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