MEDIUM
9th CBSE
IMPORTANT
Earn 100

By which physical process does the fragrance of burning incense stick spreads all around?

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
Higher the melting point of a substance, _____ will be the force of attraction between its particles. (Lower/ greater/ higher)
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?