Chapter 01 Matter in Our Surroundings Questions-01
Questions
1. Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
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Answer
Any things which have some weight and occupy space will come under category of matter.
Chair, air, smell, almonds, cold-drink and smell of perfume: Matter
2. Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.
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Answer
Evaporation is directly proportional to temperature, means hot food evaporates easily. Diffusion of hot food vapor with air becomes very fast and can reach to a distant place within a very short time.
3. A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?
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Answer
The phenomena of cutting the water by the diver show that matter has space between its particles.
4. What are the characteristics of the particles of matter?
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Answer
Characteristics of particles of matter are given below:
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Particles of matter have space between them.
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Particles of matter are continuously moving.
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Particles of matter have an attraction force between them.
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Particles of matter are very small in size.
