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प्रश्न
Comment upon the following:-
kinetic energy
उत्तर
Kinetic energy is the energy possessed by a particle due to its motion.
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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 reasons:
A gas exerts pressure on the walls of the container.
A bottle of perfume was opened in a room. The smell of its vapours spread in the entire room. Name the property of gases which is responsible for this behaviour of perfume vapours.
Give two reasons to justify that Water is a liquid at room temperature.
A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.
What does the diffusion of gases tell us about their particles?
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.
Comment upon the following:-
filling a gas container
Comment upon the following:-
density
Which of the following is TRUE about gaseous state?
