Thursday, August 12, 2010

What is matter


What is matter?
In this blog we are goin g to discuss about two Physics topics one is What is matter and other is Kinetic Energy.
Now let me start with What is matter?
Matter is everything that is around us.
Anything that has an existence, due to which one is able to see and feel it directly, is called matter.

Matter can be identified by certain properties or behaviour. 
Balloons, football and orange juice are all examples of matter having certain properties.
Matter is an entity that takes up space and occupies it. The amount of space occupied by any matter is called its volume.
Watch the difference in the levels of the pans of the weighing scale shown here
The inflated balloon has air in it and is therefore heavier than the deflated one.

Air is matter and matter has weight.
Observe that the ice sinks down by the force of the juice that’s being poured.
The force exerted by matter is called its pressure

Matter can be identified by certain properties: -

Matter is anything that
1) Has weight.
2) Occupies space and
3) Exerts pressure.
Now come to the next concept what is kinetics energy?
Energy is the ability or capacity to do work. Every matter of the universe, whether living or non living, human being, animals or plants posses some type of energy in one way or the other.Kinetic energy s a form of energy which is related to the motion of the particle.If a body is at rest then its kinetic energy will be zero.
Lets see some examples of kinetic energy-
A moving train,water falling from high rocks,a walking  man,a moving rocket ete.
So,energy consists of a moving thing is Kinetic energy.
We will discuss more about Kinetic energy in the next blog.

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