EASY
9th CBSE
IMPORTANT
Earn 100

Define density. What is the SI unit of density?

Important Questions on Floatation

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Check Your Progress>Q 2
The relative density of iron is 7.8. What does this statement mean?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Check Your Progress>Q 3

Give reasons: A ship sinks to a  greater depth in river water than in sea water.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Check Your Progress>Q 3

Give reasons: Toy balloons filled with hydrogen rise to the ceiling.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Check Your Progress>Q 4
An object of mass 40 g has a volume of 80 cm3. Will the object float in water? Why?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Check Your Progress>Q 5
The relative density of mercury is 13.6. State its density in the SI unit.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Higher Order Thinking Skills (HOTS) Questions>Q A
When a floating body is pressed down a little, which of the two will increase - weight or upthrust?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Higher Order Thinking Skills (HOTS) Questions>Q A
Which of the two will double the pressure - doubling the area or making the area half?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 4 - Floatation>Higher Order Thinking Skills (HOTS) Questions>Q B
Why do skiers use long flat skis on snow-clad mountains?