Energy Waves Unit Review

Why does sound travel faster through a solid object than in the air?

• The atoms are smaller in a solid object than the atoms in the air.

• The atoms in the solid object are closer together than the atoms in the air.

• The atoms are larger in the solid object than the atoms in the air.

• The atoms in the solid object are farther apart than the atoms in the air.

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Why does a leaf look green in the summer?

• It absorbs green light.

• It reflects green light but absorbs the other colors.

• It produces green light in its cells.

• It absorbs all colors.

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What causes the blue color of the sky?

• reflection of light from land and water surfaces

• scattering of light by matter in the atmosphere

• emission of light by land and water surfaces

• absorption of light by matter in the atmosphere

Which of these produces the highest pitch with its wings?

• honeybee

• humming bird

• mosquito

• bumble bee

Sound gets louder as what increases?

• frequency

• pitch

• amplitude

• resting position

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NGSS.MS-PS4-1

What tells you the amount of energy of any wave?

• amplitude

• frequency and amplitude

• frequency and wavelength

• frequency, wavelength, and amplitude

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What is amplitude?

• trough to crest

• compression to rarefaction

• crest to crest

• rest position to crest

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What is the relationship between eyesight and light?

• Light shines through objects and then to the eye.

• Light shines on objects and then to the eye.

• Light reflects off objects and then to the eye.

• Light enters the eye then strikes the object.

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As an ambulance drives towards you, what happens to the sound?

• The volume becomes softer.

• The volume becomes louder.

• The pitch becomes higher.

• The pitch becomes lower.

Which part of the electromagnetic spectrum can we see?

• ultraviolet light

• infrared light

• gamma rays

• visible light