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Light

Total questions: 22

Worksheet time: 21mins

Name
Class
Date
1.

Type down an example of the natural sources of light

4 lines
2.

Type down an example of artificial sources of light

4 lines
3.

What are luminous objects?

a)

Objects that have their own light

b)

Objects that do not have their own light

4.

What are non- luminous objects?

a)

Objects that have their own light

b)

Objects that do not have their own light

5.

Type down an example of a luminous object.

4 lines
6.

What are opaque objects?

a)

Objects that cannot let light pass through

b)

Objects that can let little light pass through

c)

Objects that can let light pass through

7.

What are transparent objects?

a)

Objects that cannot let light pass through

b)

Objects that can let little light pass through

c)

Objects that can let light pass through

8.

What are translucent objects?

a)

Objects that cannot let light pass through

b)

Objects that can let little light pass through

c)

Objects that can let light pass through

9.

Type down an example of a translucent object.

4 lines
10.

Type down an example of a transparent object.

4 lines
11.

Type down an example of a opaque object.

4 lines
12.

When an opaque object blocks light, a dark patch called a (a)   appears on a surface.

13.

At what time of day does our shadow become longer?

a)

Morning

b)

Noon

c)

Evening

d)

Afternoon

e)

Night

14.

At what time of day does our shadow become shorter?

a)

Morning

b)

Evening

c)

Noon

15.

In the picture the straw is bent,but it is actually not bent because of _____________.

a)

Reflection

b)

Refraction

16.

Which of the options are natural sources of light?

a)
b)
c)
d)
17.

Which option are artificial sources of light?

a)
b)
c)
d)
18.

Which options are luminous objects?

a)
b)
c)
d)
19.

Which options are non-luminous objects?

a)
b)
c)
d)
20.

If you shine light on a transparent object _ _ _ _ _ _ colours {VIBGYOR} appears.

(a)  

21.

If you shine light on a transparent object 7 colours appear. What are those colours? Write short form.

(a)  

22.

What are the colours of the rainbow?

a)

Red,Orange,Yellow,Green,Blue,Indigo,Violet

b)

Violet,Indigo,Blue,Green,Yellow,Orange,Red

c)

Red,Yellow,Blue,Orange,Violet,Green,Indigo