Chapter 18 - Electromagnetic Waves

What is a property of a transparent object?

• Almost all of the light rays that reach it are scattered.
• Almost all of the light rays that reach it are absorbed.
• Almost all of the light rays that reach it are reflected.
• Almost all of the light rays that reach it pass through it.

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Which is translucent?

• tissue paper
• air
• wood
• clear plastic

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What is most likely to happen to light that hits an opaque object?

• All of the light passes through the object.
• None of the light passes through the object.
• Most of the light disappears.
• Some of the light passes through the object.

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Which is transparent?

• a wooden fence
• clean water
• aluminum foil
• a purple balloon

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If you wanted a gift to be a surprise, what kind of container would you put it in?

• transparent
• thick
• opaque
• translucent

What happens when light hits a mirror?

• it makes a color
• it reflects
• it makes a rainbow
• it passes through

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How does light travel?

• in a wavy path
• in a straight path
• in a zig zag path

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electromagnetic waves with the longest wavelengths are

• gamma rays
• x-rays
• infrared waves
• radio waves

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which of the following does NOT belong in the electromagnetic spectrum:

• X-ray

• sound wave

• ultra violet rays

• microwaves

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Which waves are used to show heat loss with heat sensitive cameras?

• Infrared radiation
• ultraviolet radiation
• microwaves
• gamma rays

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