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प्रश्न
Comment upon the following:-
rigidity
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उत्तर
The rigidity can be expressed as the tendency of matter to resist a change in shape.
संबंधित प्रश्न
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
Give a reason for the following observation.
We can get the smell of perfume sitting several metres away.
Fill in the following blank with suitable words :
Solid, liquid and gas are the three ........................ of matter.
Fill in the following blank with suitable words :
At room temperature, the forces of attraction between the particles of solid substances are ....................... then those which exist in the gaseous state.
Give two reasons to justify that Water is a liquid at room temperature.
Give reason for the following observation :
The smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
Why do gases diffuse very fast?
A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
Comment upon the following:-
density
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
