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Light- Reflection and Refraction

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

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

a)

echo

b)

refraction

c)

reflection

d)

absorbing

2.

When light goes from one material(medium) to another it becomes bent, what term means bent?

a)

reflected

b)

refracted

c)

absorbed

d)

turned

3.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

4.

When light passes from air to water, what happens to the speed of the light?

a)

speeds up

b)

slows down

c)

stays the same

5.

What is the best explanation for Mickey seeing himself in the mirror?

a)

refraction

b)

absorbed

c)

reflection

d)

flipped

6.

What is happening in this picture?

a)

Reflection

b)

Refraction

7.
The velocity of light in vacuum is _______ m/s
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
8.

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

a)

56o

b)

90o

c)

124o

d)

34o

9.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
10.

Which of the following characteristics are correct for the image formed in a plane mirror?


I. Upright

II. Inverted

III. Real

IV. Same size as the object

V. Virtual

a)

I, II, III

b)

I, III, IV

c)

I, IV, V

d)

III, IV, V

11.

Which of the following factors contributes to the bending of light?

a)

Change of speed of light

b)

Change of density of light

c)

Change of colour of light

d)

Change of energy of light

12.
Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
13.

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

a)

It bends away from the normal

b)

It does not bend

c)

It bends towards the normal

d)

It continues to be the normal

14.

Which figure represents the path light takes through a converging lens?

a)
b)
c)
d)
15.

The type of mirror used in reflector in automobile lights is

a)

Plane mirror

b)

Concave mirror

c)

Convex mirror

d)

None of the above