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From Karnataka Open Educational Resources
→Notes for teachers
'''Temperature of an object determines how much energy - heat - it will give out or receive.'''
'''Temperature of an object determines how much energy - heat - it will give out or receive.'''
All molecules in matter vibrate and they possess kinetic energy. The more energy they have the more they will vibrate. The total amount of energy contained in the substance depends on the individual energy of the molecules and the number of molecules present. The temperature tells us what is the average of the kinetic energy. When temperature is high, that means average energy of the molecules is more and when they give out energy as heat, the average kinetic energy decreases, resulting in temperature decrease.
'''Effects of heat'''
Heat changes state of matter, increases its temperature and results in expansion. It is this property of expansion that allows us to build thermometers. The change in heat energy is determined by temperature change. How much temperature changes is determined by the heat capacity of the substance.
== Lesson plan ([{{fullurl:{{FULLPAGENAME}}/Lesson Plan|action=edit }} Click to create the subpage]) ==
== Lesson plan ([{{fullurl:{{FULLPAGENAME}}/Lesson Plan|action=edit }} Click to create the subpage]) ==
