Reflection and Refraction

Use the image provided to demonstrate your understanding of the optics of a plane mirror. Please note this hard truth: If a mirror is plane it was made that way. If a mirror is plain it is being made that way.

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A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water
• makes the water in the glass evaporate
• reflects the pencil on the water's surface

Tags

NGSS.MS-PS4-2

Why does the lower part of the child appear so much different in size from the upper part?

• The light rays that travel through water and then into air are refracted.
• The light rays that travel through water and then into air are enlarged.
• The light rays that travel through air and then into water are reflected.
• The light rays that travel through air and then into water are reduced.

Light interacting with a prism is an example of what?

• Reflection

• Refraction

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NGSS.MS-PS4-2

The bending of light rays means that it changes direction and/or speed. In optics this is known as

• lens

• refraction

• magnify

• reflection

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NGSS.MS-PS4-2

What is this image an example of?

• Reflection
• Diffusion
• Refraction

Tags

NGSS.MS-PS4-2

According to the Law of reflection, a light ray striking a mirror

• continues moving through the mirror in the same direction
• moves into the mirror at a slightly different angle
• bounces off the mirror toward the direction it came from
• bounces off the mirror at the same angle it hits.

Is a concave lens thicker or thinner in the middle? 

• Thicker 
• Thinner 

Is a convex lens thicker or thinner in the middle?

• Thicker 
• Thinner 

What type of lens do humans have in their eyes? 

• Concave Lens 
• Convex Lens