EASY
9th CBSE
IMPORTANT
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Higher the melting point of a substance, will be the force of attraction between its particles. (Lower/ greater/ higher)

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Important Questions on Matter in Our Surroundings

EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 1
Particles from the bulk of the liquid gain energy to change into _____ (solid/ gaseous) state.
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 1
Naphthalene undergoes the process of _____.
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 2
Define vaporisation.
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 3
Why do particles start vibrating in solids?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 4
Convert the temperature of 70°C to the Kelvin scale.
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 5
What is the value of latent heat of fusion of ice?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 6
Why burns caused by steam are much more severe than boiling water?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Check Point 02>Q 7
How gases can be liquefied?