MEDIUM
3rd CBSE
IMPORTANT
Earn 100

What is the difference between luminous and non-luminous objects? Give two examples of each.

Important Questions on Light, Sound and Force

MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
How is shadow formed?
MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
What is sound?
MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
Can non-living things produce sound? If yes, give two examples.
MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
What is force?
MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
How is force useful to us?
MEDIUM
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q A
What is friction? How it is useful to us?
EASY
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q B
_____ helps us to see things around us.
EASY
3rd CBSE
IMPORTANT
Start Up Science 3>Chapter 12 - Light, Sound and Force>Exercise Time>Q B
The sun is the main source of light on the _____.