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Reflection and Refraction

Total questions: 23

Worksheet time: 11mins

Name
Class
Date
1.

1) Refraction happens when light______

a)

bends as it enters a new medium

b)

bounces back when it hits a surface

c)

by a substance

2.

Identify the following image as or refraction.

a)

Refraction

b)

Reflection

3.

Which type of object blocks all light from going through?

a)

Translucent

b)

Opaque

c)

Transparent

4.

Which type of object scatters light as it passes through an only allows part of the light to shine through?

a)

Opaque

b)

Translucent

c)

Transparent

5.

Light shines clear through objects that are

a)

Translucent

b)

opaque

c)

Transparent

6.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

7.

What do we call a material that light can travel through?

a)

air

b)

water

c)

medium

d)

pathway

8.
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
9.

Reflection is when light...

a)

Bends

b)

Bounces

c)

Absorbs

d)

transmits

10.

Refraction is when light...

a)

Bounces

b)

Transmits

c)

Bends

d)

Absorbs

11.

Law of reflection state that - The angle of incidence is .................. to the angle of reflection.

(La ley de reflexión establece que - El ángulo de incidencia es .................. al ángulo de reflexión.)

a)

equal (igual)

b)

half (mitad)

c)

double (doble)

12.

If the angle of incidence is 20 degrees, what will be the value of the angle of reflection?

(Si el ángulo de incidencia es de 20 grados, ¿cuál será el valor del ángulo de reflexión?)

a)

0

b)

10

c)

20

d)

30

13.

In the diagram, which letter represents the angle of incidence?

(En el diagrama, ¿qué letra representa el ángulo de incidencia?)

a)

B

b)

C

c)

D

d)

E

14.

In the diagram, which letter represents the angle of reflection?

(En el diagrama, ¿qué letra representa el ángulo de reflexión?)

a)

B

b)

C

c)

D

d)

E

15.

In the diagram, which letter represents the incident beam?

(En el diagrama, ¿qué letra representa el haz incidente?)

a)

A

b)

B

c)

C

d)

D

16.

In the diagram, which letter represents the reflected beam?

(En el diagrama, ¿qué letra representa el rayo reflejado?)

a)

A

b)

B

c)

C

d)

D

17.

In the diagram, which letter represents the normal line?

(En el diagrama, ¿qué letra representa la línea normal?)

a)

A

b)

B

c)

D

d)

E

18.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
19.
........... – the angle between the normal and the reflected ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
20.
........... – the angle between the normal and the incident ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
21.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
22.
If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface
a)
45
b)
90
c)
180
d)
none of the above
23.

In the given figure, which of the following holds 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°.