Practice-1: Matter around Us

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Title of test:
Practice-1: Matter around Us

Description:
MCQ to enhance your knowledge

Author:
AVATAR

Creation Date:
22/03/2020

Category:
Science
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Content:
Evaporation and Vaporisation happens at same temperature. Yes No Sometimes Evaporation happens after vaporisation.
Freezing and melting happens at same temperature. No Yes Sometimes they happen at same temperature.
In any conversion or transformation of energy heat is always lost Energy can be lost or found There is no loss of energy during transformation of energy sometimes some energy is degraded as heat energy.
Water has higher specific heat capacity than oil. Yes to some extent but not always No oil has higher specific heat capacity Yes Water has higher.
What does it mean water has higher specific heat capacity? It means water can cool faster It means water can get heated faster It means water can get heated slowly and hold for long time It means water can get heated slowly and does not hold for long time.
Why do we feel fresh when we apply water on face? That is because water absorbs heat by evaporating and we feel cool. That is because water remains on surface and vaporises after some time. None of the above.
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