Fssa Waves Review

A light wave from the sun shines through the atmosphere, into the window of a house, and through a plastic fish tank. In which of the following mediums would the light waves travel the fastest?

• The air in the atmosphere

• The glass in the window

• The water in the fish tank

• The plastic fish tank

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NGSS.MS-PS4-2

Sound waves need to travel through something made of atoms or molecules to keep moving. They travel at different speeds through different materials. Through which of the following would they be likely to travel fastest?

• Air

• Water

• Juice

• Wood

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NGSS.MS-PS4-2

Which of the following is necessary for a sound to be produced?

• air

• an ear

• a vibrating object

• a complete vacuum

Sound waves are unable to travel through

• air

• a vacuum

• water

• rock

Tags

NGSS.MS-PS4-2

While watching a popular space-based science fiction movie, space vehicles loudly shoot each other with lasers and explode with a booming sound. Students of science know that sound does not travel through space and these movie scenes showing space sounds are factually incorrect. Why are there no sounds in space?

• Sound waves travel as transverse waves

• Sound waves require a medium

• Sound waves can only travel through air particles

• Sound waves have high frequencies

Tags

NGSS.MS-PS4-2

Jacob went down to the lake on a still day. The water’s surface was completely smooth and he could see a tree reflected perfectly in the water. A breeze came up and disturbed the surface of the water and the reflection of the tree disappeared. Why could he see the tree’s reflection when the water was still but not when it was disturbed?

• The disturbed surface made the light waves reflect in many directions, breaking up the image

• The disturbed surface allowed some of the light waves to penetrate the water, making gaps in the image surface

• The disturbed surface kept the light waves from reflecting, making it impossible to see the image

• The disturbed surface changed the light waves’ wavelengths, changing the reflected image

Tags

NGSS.MS-PS4-2

Andrea held her hand up in front of a light and a shadow in the shape of her hand appeared on the opposite wall. What property of light explains why the shadow appeared?

• Light passes through all objects

• Light travels in a straight line

• Light bends around objects in its path

• Light waves are refracted by solid objects