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- 1. Multiple Choice
____________is a million times smaller than the thickest human hair
Atom
Cell
Sand
Compound
- 2. Multiple Choice
Particles possess ___________energy due to constant random motion
Potential
Chemical
Kinetic
Electric
- 3. Multiple Choice
An example of plasma state
- 4. Multiple Choice
Which of the following is highly compressible
Wool
Milk
Sanitizer
Oxygen
- 5. Multiple Choice
Mercury does not wet glass because its adhesive force is greater than its cohesive force.
True
False
- 6. Multiple Choice
Unit of Latent heat is
Jkg
kg/J
J/kg
J
- 7. Multiple Choice
Examples for latent heat of fusion ( there could be more than 1 correct answers)
- 8. Multiple Choice
The specific latent heat of fusion of ice is 336000 J/kg
True
False
- 9. Multiple Choice
During a change in state of matter, the amount of heat energy absorbed causes a change in temperature
True
False
- 10. Multiple Choice
Soft drinks are cooled faster by placing them in ice rather than in water at 0oC.
True
False
- 11. Multiple Choice
A burn caused by boiling water is more serious than a burn caused by steam.
True
False
- 12. Multiple Choice
Icebergs do not melt due to
High latent heat of vaporisation of ice
Low latent heat of Fusion of ice
High latent heat of Fusion of ice
Low latent heat of vaporisation of ice
- 13. Multiple Choice
The picture is an example of
Evaporation
Deposition
Sublimation
Condensation
- 14. Multiple Choice
Jack keeps a bowl of water outside in the morning, in the afternoon he realises that the level of water in the bowl has reduced. This is due to
Boiling
Freezing
Evaporation
Sublimation
- 15. Multiple Choice
Boiling ( More than 1 answer could be correct)
is a fast process
Causes cooling
Takes place only on the surface of the liquid
Is accompanied by formation of bubbles
- 16. Multiple Choice
This process is called
Melting
Freezing
Sublimation
Deposition
- 17. Multiple Choice
If the melting point of a substance is 30oC, then it continues to remain at that same temperature until the entire process of melting is complete
False
True
- 18. Multiple Choice
Evaporation happens at a range of temperatures higher than the boiling point
False
True
- 19. Multiple Choice
Observe the change of state diagram. If the object is solid at P, Then its boiling point is
T20C
T10C
00C
None of the them
- 20. Multiple Choice
Observe the diagram again, Freezing is taking place at
Q to R
S to T
T to S
R to Q
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