Waves Review SC.7.P.10.3

The pitch of a sound wave describes how low or high it sounds to the human ear. Pitch and frequency are

related. Which of the following best describes this relationship?

• The lower the frequency, the higher the pitch of sound.

• The lower the frequency, the slower the speed of sound.

• The higher the frequency, the lower the pitch of the sound.

• The higher the frequency, the higher the pitch of the sound.

Sound waves can move at different speeds. What can affect the speed at which sound waves travel?

• the amplitude of sound wave

• the material through which sound waves travel

• the distance over which sound waves travel

• the frequency of sound waves

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NGSS.MS-PS4-2

Sound waves travel at different speeds through different materials. Through which of the following materials

will sound waves travel the fastest?

• copper pipe

• swimming pool

• air on a cold day

• sauna filled with steam

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NGSS.MS-PS4-2

Sound waves and light waves behave differently in different materials. How are sound waves different from light waves?

• Sound waves cannot travel through a vacuum.

• Light waves cannot travel through a vacuum.

• Only sound waves can pass through a material.

• Only light waves can pass through a material.

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NGSS.MS-PS4-2

What happens to the speed of a sound wave as it passes from the air into the ground?

• it decreases

• it increases

• it remains constant

• it immediately stops

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NGSS.MS-PS4-2

A wave has an amplitude of 6 m, a wavelength of 12 m and frequency of 2 Hz. Calculate the speed of the wave

• 3 m/s

• 6 m/s

• 12 m/s

• 24 m/s

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NGSS.MS-PS4-1

Observe the graphic above. Which of the following statements is true of the angle of incidence and the angle of reflection?

• The angle of incidence is greater than the angle of reflection.

• The angle of reflection is greater than the angle of incidence.

• They are both equal.

• They always add up to 90°.

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NGSS.MS-PS4-2

The diagram above shows light as it travels toward matter. Based on the arrows, which of the following BEST describes the way that light interacts with the matter?

• light is absorbed

• light is transmitted

• light is reflected

• light is scattered

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NGSS.MS-PS4-2

There is only one fish in the fishbowl below. When Joseph looks down at the fish, the image he observes is closer to the surface than the actual location of the fish.

Which wave characteristic does Joseph’s observation demonstrate?

• amplitude

• diffraction

• reflection

• refraction

Which choice identifies a property of sound waves?

• They travel fastest through liquids and gases, not through solids.

• They will travel at the same speed through every type of material.

• They travel Slowest through solids and liquids, not through gases.

• They will travel faster through Solid materials and get progressively slower through liquids and gases

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NGSS.MS-PS4-2