Unit 2 6.P.3.2 electromagnetic energy

Light travels in_______

• straight line

• curved line

• zig-zag line

• randomly

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NGSS.MS-PS4-2

4)Which is an example of a translucent object?

• (a) A thin sheet of paper

• (b) A thin glass slab

• (c) A thin iron sheet

• (d) All of these

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NGSS.MS-PS4-2

5)Bouncing back of light from shining surfaces is called

• (a) Reflection

• (b) Refraction

• (c) Bending

• (d) Dispersion

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NGSS.MS-PS4-2

8)The process of light turning back after striking the shiny side of mirror is called

• (a)Refraction

• (b)Shadow

• (c)Reflection

• (d)Umbra

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NGSS.MS-PS4-2

What causes the blue color of the sky?

• emission of light by land and water surfaces
• reflection of light from land and water surfaces
• absorption of light by matter in the atmosphere
• scattering of light by matter in the atmosphere

What process forms an image in a mirror?

• absorbing light
• reflecting light
• refracting light
• transmitting light

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NGSS.MS-PS4-2

What is the effect of absorption of infrared light by human skin?

• sunburn on the skin surface
• disinfection of the skin tissues
• feeling of warmth on the skin
• immediate death of skin cells

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NGSS.HS-PS4-3

A class made a solar cooker out of a large can. What color should they paint the can in order to collect the MOST heat?

• black
• green
• pink
• white

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NGSS.MS-PS3-3

What process forms an image in a mirror?

• absorbing

• reflecting

• refracting

• transmitting

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NGSS.MS-PS4-2

What process in the atmosphere protects people from the ultraviolet rays in sunlight?

• Ozone absorbs ultraviolet light.

• Nitrogen reflects ultraviolet light.

• Water vapor scatters ultraviolet light.

• Carbon dioxide blocks ultraviolet light.