Waves lesson 4

If I have two DIFFERENT objects and I shine a light on them the first one transmits through and the other one reflects, how is this possible.

• The objects are at different positions

• The objects are made of different material

• The objects are at different heights

• The objects are different shapes

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NGSS.MS-PS4-2

Light bends as it crosses from air into glass.

• True

• False

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NGSS.MS-PS4-2

Whether light is reflected or absorbed depends on material of an object and

• intensity of light

• brightness of light

• velocity of the light

• frequency of light

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NGSS.MS-PS4-2

A light wave is traveling from water to air. Which of the best describes what happens to the light waves as it enters the water?

• The light wave will continue to travel in a straight line.

• The light wave will bend as it enters the water from the air.

• The light wave will be completely absorbed by the water.

• The light wave will completely bounce off the water.

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NGSS.MS-PS4-2

Properties of light such as its brightness, color, and frequency mean that light is made up of particles.

• True

• False

Light will bend as it travels from one medium to another. On which property of light is this bending dependent?

• the speed of the light

• the frequency of the light

• the intensity of the light

• the brightness of the light

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NGSS.MS-PS4-2

Why does wearing a white shirt make you feel cooler on a hot day than wearing a black shirt?

• The white shirt absorbs all visible light

• The black shirt only reflects half of the visible light

• The white shirt reflects all of the visible light

• The black and white shirts neither absorb nor reflect the visible light

What are the primary colors for light?

• Green

• Black

• Red

• Blue

• White