EASY
9th CBSE
IMPORTANT
Earn 100

Does density of a substance vary with temperature?

Important Questions on Gravitation

EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 22
Why it is easier to lift a stone under liquid.?
MEDIUM
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 23
An iron needle sinks, but a ship made of iron floats in water. Explain.
MEDIUM
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 24
Why does a block of plastic piece released under water comes to the surface of water.?
MEDIUM
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 25
Why does an egg sink in water, but float in brine solution.?
HARD
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 26
Why is it easier to swim in dead-sea water than in a pond of fresh water?
MEDIUM
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 27
The relative density of lead is 11.34. The density of water is 1000 kg/m3. What is the density of lead in S.I.
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 28
Why does an iron nail sink in water but a wooden cork floats in water.?
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 3 - Gravitation>Assignment>Q 29
Two blocks one of iron and other of wood are immersed in water at the same depth. Will both come upwards? Why?