CBSE Class 4 Science Light MCQs

Question: Objects that do not produces their own light are called

a) Non-Luminous Objects

b) Luminous objects

c) none of these

Answer: Non-Luminous Objects

Question: ___________ is the natural source of light.

a) sun

b) electric bulb

c) candle

Answer: sun

Question: Which is the artificial source of light?

a) electric bulb

b) stars

c) sun

Answer: electric bulb

Question: Light travels in a ___________ line.

a) straight

b) zig-zag

c) none of these

Answer: straight

Question: Objects that give out their own light are called

a) Luminous objects

b) Non-Luminous Objects

c) none of these

Answer: Luminous objects

Question: A ___________ is formed when the path of light is blocked

a) shadow

b) opaque

c) transparent

Answer: shadow

Question: A substance that allows only some of the light to pass through it

a) Translucent substance

b) Opaque substance

c) Transparent substance

Answer: Translucent substance

Question: Substances that do not allow any light to pass through them are called

a) Opaque substance

b) Transparent substance

c) Translucent substance

Answer: Opaque substance

Question: Which amongst these are transparent objects?

a) both of these

b) window pane

c) thin plastic sheet

Answer: both of these

Question: When the path of light is blocked by anything a ___________ of that thing is formed

a) shadow

b) opaque

c) transparent

Answer: shadow

Question: We are able to see things because of

a) light

b) energy

c) work

Answer: light

Question: The Sun, Stars and glow worms are ___________ sources of light.

a) Natural

b) Artificial

c) both

Answer: Natural

Question: Who has made the artificial sources of light?

a) human beings

b) animals

c) both

Answer: human beings

Question: Metal, brick, and thick plastics are ___________ object

a) opaque object

b) transparent object

c) translucent object

Answer: opaque object

Question: Which of the following allows the light to pass through them?

a) glass window

b) computer

c) table

Answer: glass window

Question: Which of the following is translucent?

a) tracing paper

b) brick

c) book

Answer: tracing paper

Question: Tracing paper is

a) translucent

b) transparent

c) opaque

Answer: translucent

Question: Which of these is not a source of light?

a) book

b) sun

c) stars

Answer: book

Question: We see things when light from a source of light is reflected by an object to our

a) eyes

b) ears

c) both

Answer: eyes

Question: Things that give off light are known as

a) Luminous objects

b) Non-Luminous Objects

c) Both

Answer: Luminous objects

Question: Light is a form of

a) energy

b) power

c) heat

Answer: energy

Question: Apart from the Sun which of the following is a source of light?

a) glowworm

b) Tapeworm

c) None of these

Answer: glowworm

Question: Frosted glass window comes under which of the following categories?

a) Translucent Substances

b) Opaque substances

c) None of these

Answer: Translucent Substances

Question: At what point of time is your shadow bigger than your physical body?

a) morning

b) afternoon

c) None of these

Answer: morning

Question: The Sun, Stars and glow worms are

a) Natural

b) Artificial

c) energy

Answer: Natural

In the following videos we have explained you about the concept of Light and its properties. Watch this video to understand the concepts and also post your questions and comments in the comments section

Part 1

Part 2