Advertisements
Advertisements
प्रश्न
Fill in the blank:
The quantity of matter in an object is called its _____
उत्तर
The quantity of matter in an object is called its mass.
APPEARS IN
संबंधित प्रश्न
Write your observation and conclusion for the following:
When one of the balloons suspended to the metre scale is punctured while other remains inflated ?
Fill in the blank:
Liquids have no definite ............
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Give reason:
A drop of ink added to water in a glass turns whole water blue.
What happens when a solid is heated ?
Give reason
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
What is meant by 'diffusion'? Give one example of diffusion in gases.
Each of the three states of matter has mass. Explain with the help simple experiments – that each state of matter has mass.
Fill in the blank:
Particles in a gas possess ___________ kinetic energy.
