Light Energy Review

A laser is pointed at a surface of water. The initial direction of light leaving the laser is shown.

At which point will the direction of the light change?

• point W

• point X

• point Y

• point Z

Tags

NGSS.MS-PS4-2

Several students are trying to determine which material would be best to use to cover the outside of the classroom windows so the sun does not heat up the room. They shine a beam of light at different materials and they record the path of the light for each material. Which diagram shows the material they should use on the classroom windows?

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Tags

NGSS.MS-PS4-2

A shirt made of which material will absorb the most sunlight?

• red satin

• white satin

• blue cotton

• black cotton

Tags

NGSS.MS-PS4-2

A student views an object in a mirror. Which picture shows the correct way light travels from an object to the student's eye?

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Tags

NGSS.MS-PS4-2

The flower appears red in sunlight. Blue, green, red, yellow, and other colors make up sunlight. ​Which color(s) do the flower absorb?

• Blue

• Green

• Red

• Yellow

Tags

NGSS.MS-LS1-6

The flower appears red in sunlight. Blue, green, red, yellow, and other colors make up sunlight. ​Which color(s) do the flower reflect?

• Blue

• Green

• Red

• Yellow

Tags

NGSS.MS-LS1-6

In tropical locations, the roofs of homes are often painted white to prevent the temperatures inside the home from getting too hot. ​ ​

Which statement explains how white roofs keep the temperatures lower inside homes?

• The white paint reflects the sunlight.

• Sunlight refracts through the white paint.

• Sunlight is absorbed and trapped in the white paint.

• The white paint allows sunlight to travel through the roof.

Tags

NGSS.MS-PS3-3

Which diagram correctly shows the reflection of light from a smooth, flat mirror?

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Tags

NGSS.MS-PS4-2

Light is sometimes reflected when it strikes an object. ​ Which behavior of sound is similar to light being reflected?

• bending around a building

• traveling through air

• echoing off a cliff

• being absorbed by walls

Tags

NGSS.MS-PS4-2

A teacher has a car sun shade that is supposed to be placed behind his windshield to keep the inside of his car cool in the summer. The sun shade is shiny on one side and black on the other side.

Which statement explains how the sun shade should be positioned to keep the car coolest?

• The shiny side should be facing outward so that sunlight will reflect off the sun shade.

• The black side should be facing outward to absorb the sunlight shining on the sun shade.

• The shiny side should be facing outward to absorb the sunlight shining on the sun shade.

• The black side should be facing outward so that sunlight tail be reflected off the sun shade.

Tags

NGSS.MS-PS3-3