MEDIUM
9th CBSE
IMPORTANT
Earn 100

Give reason: A gas fills completely in the vessel in which it is kept.

Important Questions on Matter in Our Surroundings

HARD
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 3

Give reason:

A gas exerts pressure on the walls of the container.

MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 3

Give reason:

We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.

MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 2
What is the physical state of water at?
(a) 250 Co
(b) 100 Co
HARD
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 1
Why does a desert cooler cool better on a hot dry day?
HARD
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 2
How does the water kept in an earthen pot (matka) become cool during summers?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 3
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Questions>Q 4
Why are we able to sip hot tea or milk faster from a saucer rather than a cup?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 1 - Matter in Our Surroundings>Exercises>Q 2
Convert the following temperatures to Kelvin scale.
(a) 25°C
(b) 373°C