Light Reflection and Refraction

What is the Law of Reflection?

• The angle of reflection is always zero degrees.

• The angle of incidence is always greater than the angle of reflection.

• The angle of incidence is equal to twice the angle of reflection.

• The angle of incidence equals the angle of reflection.

What happens to light when it passes from air into water?

• Light bends and slows down when it passes from air into water.

• Light is absorbed completely by the water.

• Light speeds up when entering water.

• Light passes through without any change.

The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?

• 
• 
• 
• 

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NGSS.MS-PS4-2

When does the light is refracted?

• When light travels in a straight line

• When light is bounced

• When light travels in two different mediums

• When light cannot pass through an opaque object

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NGSS.MS-PS4-2

Diagram shows the condition of a spoon in a glass of water.

What can be observed about the spoon?

• The spoon looks bent.

• The water is clearer.

• The water level rises.

• Light is refracted.

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NGSS.MS-PS4-2

When light hits an area and bounces back it is called:

• echo

• refraction

• reflection

• absorbing

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NGSS.MS-PS4-2

What is the angle of reflection (θ_r) in the image?

• 56^o

• 90^o

• 124^o

• 34^o

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NGSS.MS-PS4-2

When the light passes out of the glass, back into the air

• It bends away from the normal

• It does not bend

• It bends towards the normal

• It continues to be the normal

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NGSS.MS-PS4-2

The ray of light that strikes a reflecting surface is called ________.

• incident ray
• reflected ray
• normal ray
• none of the above

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NGSS.MS-PS4-2

Why can you see most objects? 

• they emit light
• light refracts through them
• light reflects off them
• They absorb light

Tags

NGSS.MS-PS4-2