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CFU: Reflection Notes

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.
Why can you see most objects?
a)
Light reflects off them
b)
Light is absorbed by them
c)
Light is bent by the object
d)
Light is scattered from the surface of the object
2.
We see a green shamrock as being green because:
a)

All of the colors are absorbed except for green.

b)

All of the colors are being reflected except for green.

3.
What is the incident ray?
a)
The ray of light leaving the mirror
b)
The ray of light approaching the mirror
4.
Angles are always measured from the:
a)
Boundary
b)
Normal
c)
Incident Ray
d)
Reflected Ray
5.
The point from which all of the light rays diverge is called the:
a)
image point
b)
luminous object
c)
origin
d)
focal point
6.

The picture shows which type of reflection?

a)

Specular Reflection

b)

Optical Reflection

c)

Diffuse Reflection

d)

Scatter Reflection

7.

The ray of light that strikes a mirror is called the:

a)

Reflected Ray

b)

Incident Ray

c)

Angle of Incidence

d)

Angle of Reflection

8.

The ray that bounces off the mirror is called the:

a)

Angle of Reflection

b)

Incident Ray

c)

Reflected Ray

d)

Angle of Incidence

9.

The angle between the incident ray and the normal. (X on the diagram) is called the:

a)

Angle of Optic Sight

b)

Angle of Reflection

c)

Angle of Incidence

d)

Angle of Normal

10.

The angle between the reflected ray and the normal (labelled Y on the diagram) is called the:

a)

Angle of Incidence

b)

Angle of Reflection

c)

Angle of Normal

d)

Angle of Optic Sight

11.

An imaginary line that is drawn at a right angle (90 degrees) to a mirror (Green line) is called the:

a)

Reflected Ray

b)

Normal

c)

Incident Ray

d)

Perpendicular Ray

12.

When light reflects off of a completely smooth surface it is called:

a)

Diffuse Reflection

b)

Optical Reflection

c)

Smooth Reflection

d)

Specular Reflection

13.

If the angle of incidence in the diagram is 80°, the angle of reflection will be:

a)

10°

b)

100°

c)

90°

d)

80°

14.
The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface is called:
a)
mirror
b)
laser
c)
reflection
d)
refraction
15.

Light always travels:

a)

in a straight line

b)

in unpredictable paths

c)

in a curved line

d)

in up and down paths

16.

A ray of light is incident on a plane mirror and the angle of incidence is 25 degrees. What is the angle of reflection?

a)

A. 0 degrees

b)

B. 50 degrees

c)

C. 90 degrees

d)

D. 25 degrees

17.

Given that the angle of incidence = 30 degrees


Which is the correct diagam?

a)

A

b)

B

c)

C

d)

D

18.

An object that gives off it's own light is called?

a)

luminous

b)

illuminated

c)

electricity

d)

Planck's Paradox

19.

An object that does not produce it own light is called?

a)

luminous

b)

illuminated

c)

electricity

d)

Planck's Paradox

20.

In the given figure, which of the following is TRUE?

a)

The angle of incidence is 10°.

b)

The angle of incidence is 80°.

c)

The angle of reflection is 10°.

d)

The angle of reflection is 90°.