AnswersPhysical ScienceReflection and Mirrors

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1
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A light ray hits a hard, opaque object. The angle at which the light ray bounces off the object depends on

A
the angle at which the light hits the surface.
B
the smoothness of the surface.
C
the source of the light that hits the surface.
D
the material the surface is made of.
2
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Glare appears on a computer screen when light from the surroundings reflects off of the screen’s surface. Some computer screens have a special coating to reduce glare. Which best explains how the coating works?

A
The surface of the coating is rough, so light that shines on it gets scattered in many directions.
B
The coating absorbs light that shines on it and prevents the light from reflecting.
C
The coating bends light that passes through it and prevents the light from reaching the user’s eyes.
D
The surface of the coating allows light from the room to pass through but blocks the light from the screen.
3

Which describes an image that a plane mirror can make?

A
The image can be either virtual or real.
B
The image is always real.
C
The image can only be the same size as the object.
D
The image is never right-side up.
5

Which type of surface is best able to reflect light?

A
A smooth, polished surface.
B
A rough, cloudy surface.
C
A rough, polished surface.
D
A smooth, cloudy surface.
6

Harry is reading an online summary of the law of reflection. The site states that after light hits a mirror, the angle of reflection is the angle between the reflected ray and the normal, which is the surface of the mirror. Which statement corrects an error on the site?

A
The normal is a line perpendicular to the surface of the mirror.
B
The angle of reflection is the angle between the reflected ray and the incoming ray.
C
The angle of reflection is the angle between the incoming ray and the normal.
D
The normal is a line perpendicular to the incoming ray.
9

How does a concave mirror form an image?

A
It bends the light toward a focal point.
B
It bounces the light toward a focal point.
C
It bounces the light away from a focal point.
D
It bends the light away from a focal point.
10

A plane mirror is placed to the right of an object. The image formed by the mirror will be a

A
virtual image that appears to be on the right of the mirror.
B
real image that appears to be on the right of the mirror.
C
real image that appears to be on the left of the mirror.
D
virtual image that appears to be on the left of the mirror.

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