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प्रश्न
Each of the three states of matter has mass. Explain with the help simple experiments – that each state of matter has mass.
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उत्तर
Matter i.e. solids, liquids, and Gases have mass explained by the following experiments.
(1) Solid
Experiment: A solid placed on one side of the scale, causes the scale to tilt towards one side.
Conclusion: The scale tilts due to the mass of the solid, hence all solids have mass.
(2) Liquid:
Experiment: A liquid placed on one side of the scale, causes the scale to tilt towards one side.
Conclusion: The scale tilts due to the mass of the liquid, hence all liquids have mass.
(3) Gas:
Experiment: An inflated balloon placed on one side of the scale causes it to tilt towards one side.
Conclusion: The scale tilts due to the mass of the gas, hence all gases have mass.
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संबंधित प्रश्न
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.
Write true or false for statement. Rewrite the false statement correctly.
Solids can be compressed easily.
The process by which a solid changes into a liquid is called
- freezing
- melting
- condensation
- evaporation
Gases
- cannot be compressed easily,
- occupy the entire space of the container.
- have definite shapes.
- cannot flow.
Fill in the blank :
Air is a matter because it has ________ and _______ and it can be _________
Give an experiment to explain that there are intermolecular spaces between water molecules.
Fill in the blank
The physical state of a substance, which has a fixed volume but no fixed shape is _______
What are the two conditions for the interconversion of states of matter?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
With reference to the liquid state of matter – answer the following
How does the stored energy, have an effect on inter-particles space.
