Unit 9 Quiz: Light, lenses, and electromagnetic spectrum

Match the following

• Used in cell phone communication and police radar systems

• UV rays

• Has the highest energy of all electromagnetic radiation and is the most damaging to human tissue

• Radio waves

• Has the longest wavelengths and the lowest frequency

• Gamma Rays

• It is used in thermal imaging

• Infrared rays

• Overexposure to this can result in sunburns and skin cancer

• Microwaves

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

Radiant energy spreads out from its source in all directions.

• True

• False

Both X-rays and gamma rays have higher frequencies than ultraviolet rays.

• True

• False

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NGSS.HS-PS4-3

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Reorder the following according to the spectrum

• orange

• green

• yellow

• red

• blue

Reorder the following from shortest wavelength to the longest wavelength.

• gamma waves

• visible light

• x-rays

• infrared rays

• ultraviolet waves

Tags

NGSS.HS-PS4-1

The electromagnetic spectrum is a continuous range of ______ for electromagnetic radiation.

• light

• frequencies

• particles

• magnestism

Tags

NGSS.MS-PS4-2

This diagram best represents 

• reflection
• refraction
• absorption
• diffusion

Tags

NGSS.MS-PS4-2

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?

• A

• B

• A and B

• neither A or B

Which diagram shows light rays being reflected by the mirror?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2