Waves Unit Test Review

Light and matter can interact when the frequency of light _________ the natural frequency of a molecule.

• is greater than

• is lower than

• is the same as

• varies from

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Radios, televisions, wireless computer networks (wifi), cellphones, and other devices all use radio waves. How is it that our wifi routers don't pick up radio waves?

• Wifi receivers are designed to pick up lower frequencies.

• Wifi receivers are designed to pick up higher frequencies.

• Wifi receivers are designed to reflect radio waves.

• Wifi receivers absorb only the waves they need.

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What type of waves do all these devices use?

• Radio

• Ultraviolet

• Infrared

• Laser

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The change in ________ of light causes it to bend

• speed

• distance

• length

• color

When light waves move from passing through air to passing through a glass lens when happens to them?

• They slow down and change direction

• They speed up and change direction

• They maintain the same speed and change direction

• They maintain their same speed and direction

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NGSS.MS-PS4-2

Which of the pictured is responsible for our sky being blue?

• Transmission

• Reflection

• Refraction

• Scattering

• Absorption

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Which wave behavior occurs when the wave energy is not transferred through, or reflected by, the given medium?

• Reflection

• Refraction

• Absorption

• Transmission

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1. ​ Match the words with the numbers on the waves.

• 1

• amplitude

• 5

• wavelength

• 3

• rarefaction

• 2

• compression

• 4

• wavelength

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NGSS.MS-PS4-1

Which wave train (sequence) contains a wave with a greater wavelength?

• Top wave

• Bottom wave

• They are the same

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Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy transport. Identify another name for this type of wave motion.

• transverse waves

• pressure waves

• longitudinal waves

• electromagnetic waves