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Lenses and reflection

Total questions: 14

Worksheet time: 8mins

Name
Class
Date
1.

How does light travel?

a)

It curves around corners

b)

In random directions

c)

In a straight line

d)

In circles

2.

What is the ray of light that strikes the surface of an object?

a)

incident ray

b)

reflected ray

c)

normal ray

d)

normal

3.
....................... - the imaginary line perpendicular to the surface.
a)
Normal
b)
Angle of incidence 
c)
Angle of reflection
4.
What is B?
a)
Angle of incidence
b)
Angle of reflection
c)
Incident ray
d)
Reflected ray
5.

What is C?

a)

angle of incidence

b)

angle of reflection

c)

incident ray

d)

reflected ray

6.

What is E?

a)

angle of incidence

b)

angle of reflection

c)

normal

d)

reflected ray

7.
A converging lens is also known as a ____ lens.
a)
convex
b)
concave
c)
double
d)
refracted
8.
_____ is a lens that is thicker in the middle and makes an object appear bigger.
a)
prism
b)
convex lens
c)
concave lens
d)
mirror
9.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
10.

What is the point at which light rays converge after passing through a convex lens called?

a)

The horizon point

b)

The point break

c)

The focal point

d)

The perspective

11.

What is the distance between a convex lens and its focal point called?

a)

The focus

b)

The focal length

c)

The wavelength

d)

The amplitude

12.

A concave lens has an inward curved shape. It refracts light outward from the lens. The light rays spread apart as they exit the lens. Which represents a concave lens?

a)

A

b)

B

c)

A and B

d)

neither A nor B

13.

What type of surface scatters light?

a)

A smooth surface

b)

A rough surface

c)

Only wood

d)

A big surface

14.

What type of lens do humans have in their eyes?

a)

concave lens

b)

convex lens