Page 3 - 3. LESSON NOTES-(CHARACTERISTIC PROPERTIES OF MATTER)
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Characteristics of Particles of Matter

               Diffusion  of  particles  becomes  fast  when  the  temperature  is  increased.  A  rise  in
               temperature increases the kinetic energy of the particles, making them move more
               vigorously.


               Particles Attract Each Other

               Take an iron rod, a stick of chalk, and a pen. Try to break each one of these. Which
               one of these is easy to break? The iron rod is stronger than the other two items. What
               makes an item stronger? Yes, it’s the particles in them which are held by the inter-
               particle force of attraction.


               In  every  substance,  there  is  an  inter-particle  force  of  attraction  acting  between  its
               particles. To break something, we need to overcome this force.  The strength of the
               force differs from one substance to another.


               The inter-particle force of attraction and the kinetic energy of the particles primarily
               determine the physical state of any matter.























































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