Advertisements
Advertisements
Question
What is matter? What is it composed of?
Advertisements
Solution
MATTER: Anything around us is a matter.
“Anything that has mass, occupies volume and can be felt by our senses.”
It is composed of molecules.
APPEARS IN
RELATED QUESTIONS
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
In the ball and ring experiment, if the ball after heating is left to cool on the ring for sometime, the ball again passes through the ring. Explain the reason.
State one application of thermal expansion of liquids.
An iron washer is heated. State the effect on its external.
What is the velocity of thermal radiations?
Give reasons for the following:
Telephone wires sag in summer.
Give reasons for the following:
In cold countries, water pipes burst in winter.
The diagram shows a sketch graph showing a change in volume of a given mass of ice at -5°C to water at 15°C.

(i) Why does the temperature along BC remain constant?
(ii) When is the volume of water minimum?
(iii) At what temperature does water have maximum density? Explain.
Give reason for the following
An ordinary glass bottle cracks when boiling water is poured into it, but a borosilicate glass bottle does not.
