Light and Sound Waves

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°.

Tags

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

What happens to the speed of light as it exits the air and enters a glass of water?

• It speeds up

• It remains constant

• It slows down

• It first slows down and then speeds up

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NGSS.MS-PS4-2

How do the sound waves of the higher pitch notes compare to the sound waves of the lower pitch notes?

• The sound waves of notes with higher pitches have higher amplitudes.

• The sound waves of notes with higher pitches travel at higher speed.

• The sound waves of notes with higher pitches have higher wavelengths.

• The sound waves of notes with higher pitches have figher frequencies.

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NGSS.MS-PS4-1

Which of the following statements about how light waves travel is correct?

• light waves travel the fastest through liquids and slowest through the air

• light waves travel faster through solids than through air

• light waves travel the fastest through solids and slowest through liquids

• light waves travel faster through the air than through solids

Tags

NGSS.MS-PS4-2

Why can human ears hear dolphins' vocalizations while under the water but cannot hear them well on land?

• The waves in the water travel faster and at a higher frequency than they travel on land.

• The waves in the water travel faster and at a lower frequency than they travel on land.

• The waves in the water travel slower and at a higher frequency than they travel on land.

• The waves in the water travel slower and at a lower frequency than they travel on land.

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NGSS.MS-PS4-2

Why can't you hear through a transparent window?

• sound travels much faster through glass

• sound does not travel in a straight line

• there was a vacuum between the layers of the window pane

• The door was blocking the sound

Tags

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.

Tags

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

Tags

NGSS.MS-PS4-2

A material that reflects or absorbs all the light that strikes it is

• Opaque
• Transparent
• Translucent
• Concave

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NGSS.MS-PS4-2