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[1 Mark Question Answer]

Question 511 Mark
What are fluids? Give two examples.
Answer
Substances that can flow are called fluids. e.g. gases (oxygen, hydrogen), liquids (water, petrol, sulphuric acid).
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Question 521 Mark
Why do solids, liquids, and gases differ in their physical states?
Answer
1. The intermolecular force of attraction.
2. Intermolecular spaces are two important properties of matter that account for the different states of matter.
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Question 531 Mark
Classify the following into solids, liquids, and gases. Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Answer
Solids:Common salt, Wax, Stone, Sugar, Coal, Butter, Copper.
Liquids:Milk, Mercury, Blood, Coconut, oil, Kerosene.
Gases: Oxygen, Water, vapour, Carbon-dioxide.
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[1 Mark Question Answer] - Page 2 - PHYSICS STD 6 Questions - Vidyadip