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Light (9-O)

Total questions: 50

Worksheet time: 32mins

Name
Class
Date
1.

This situation shows that

a)

light travels in a straight line

b)

light is everywhere

c)

light penetrates certain objects

d)

light is produces by the Sun

2.

Which of the following shows that light travels in a straight line?

a)
b)
c)
d)
3.

What conclusion can be made from this investigation?

a)

Light travels in parallel

b)

Light travels in a straight line

c)

Light cannot pass through and opaque object

d)

Light cannot bend

4.

There is no shadow formed on the screen. Why?

a)

The object is opaque

b)

The light source is too dim

c)

The object is transparent

d)

The object is translucent

5.

This investigation is carried out to show that

a)

light travels in a straight line

b)

light can be seen through the holes

c)

light penetrates a transparent object

d)

light travels in many ways

6.
Light bounces when it is 
a)
reflected
b)
absorbed
c)
refracted
7.
Light bends when it is 
a)
refracted
b)
reflected
c)
absorbed
8.
mirror
a)
absorbs
b)
reflects 
c)
refracts
9.
rainbow
a)
light is reflected
b)
light is refracted
c)
light is absorbed
10.
The bending of light when it moves from one material to another.
a)
reflection
b)
absorption
c)
prism
d)
refraction
11.
Shadows are formed when light is
a)
reflected
b)
refracted
c)
diffracted
d)
absorbed
12.
An example of opaque.
a)
metal spoon
b)
wax paper
c)
window
d)
frosted glass
13.

Latha is observing her image in a plane mirror. The distance between the mirror and her image is 6 m. If she moves 2m towards the mirror then the distance between latha and her image will be

a)

8 m

b)

4 m

c)

10 m

d)

5 m

14.

If you are standing 2m away from a plane mirror the distance between you and your image are

a)

2m

b)

4m

c)

6m

d)

8m

15.

Angle between incident and reflected ray i.e. angle AOB is

a)

30 degree

b)

40 degree

c)

120 degree

d)

180 degree

16.

Images that can't be captured on a screen are called

a)

Real image

b)

Virtual image

c)

Proper image

d)

Imaginary image

17.

Convex lens is also called as

a)

Diverging lens

b)

Converging lens

c)

Plane lens

d)

Power lens

18.

A refracting telescope uses a concave and a

a)

Concave mirror

b)

Convex lens

c)

Both a and c

d)

Convex mirror

19.

What is the focal length of a plane mirror?

a)

1

b)

89

c)

Infinity

d)

Zero

20.

Focus is situated behind the mirror of

a)

Concave mirror

b)

Convex mirror

c)

Both

d)

None

21.

What kind of image formed by concave lens?

a)

Virtual

b)

Real

c)

Both

d)

None

22.

As the distance of the object from the mirror increases the distance of the image also increases

a)

True

b)

False

c)

Both

d)

None

23.
The moon is a source of light.
a)
True
b)
False
24.
Light is a form of ______________________
a)
energy
b)
inertia
c)
currency
d)
sound
25.

Which is a natural light source?

a)

Sun

b)

Computer

c)

Light bulb

d)

Phone

26.

What is the absence of light?

a)

Dark.

b)

A reflection

c)

A mirror

27.

An example of an artificial (not natural) source of light is...

a)

Sun

b)

Stars

c)

Flashlight

d)

Jellyfish

28.

What is the name of the lamp?

a)

Bulb

b)

Fluorescent

c)

Electric saver

29.

What is the name of the lamp?

a)

Bulb

b)

Fluorescent

c)

Electric saver

30.

The filament of electric bulb is made of.....

a)

Iron

b)

Lead

c)

Tungestin

31.

The.......... is used to connect lamp to electricity

a)

Base

b)

Two point of connection

c)

Filament

32.

The Glass is filled with.......... gas

a)

Argon

b)

Neon

c)

Nitrogen

d)

Oxygen

33.

The air is prevented to pass to bulb by.........

a)

Filament

b)

Base of bulb

c)

Glass bulb

34.
Allows little to no light through.
a)
Transparent
b)
Translucent
c)
Opal
d)
Opaque
35.
Light is a kind of.....
a)
reflection
b)
energy
c)
heat
d)
matter
36.
What happens to light after it hits a mirror?
a)
It goes through the mirror and bend.
b)
It goes straight through the mirror.
c)
It goes around the mirror.
d)
It bounces off the mirror.
37.
Light travels
a)
around corners
b)
in a straight line
38.
Which images are opaque?
a)
A & C
b)
A,C,E, & F
c)
D, E, & F
d)
A & E
39.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
40.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
41.
Blurs light as it passes through
a)
Transparent
b)
Translucent
c)
Opaque
d)
Refraction
42.

which is a transparent object

a)

glass

b)

copper

c)

iron

d)

steel

43.

which is a transparent object

a)

glass

b)

copper

c)

iron

d)

steel

44.

Which travels faster?

a)

sound

b)

light

c)

water

45.

Which is natural source of light?

a)
b)
c)

Torch

d)

Tubelight

46.

How was the Quiz

a)

Very easy

b)

Easy

c)

Difficult

d)

Ok

47.

The image that formed through the narrow hole is ----------- and --------------

a)

maximized

b)

minimized

c)

inverted

d)

b and c

48.

----------------- is darkened area which formed when light fall in opaque object

a)

shadow

b)

white light

c)

image

d)

camera

49.

light travel in ----------------- line

a)

curve

b)

broken

c)

straight

d)

zigzag

50.

The farther object to the light source has -------------shadow

a)

bigger

b)

smaller

c)

A and B

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