Science: Heat

State Council of Educational Research and Training, Tamil Nadu (2020) Science: Heat. [Teaching/Learning Resource]

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All substances in our surrounding are made up of molecules. These molecules are generally at motion and posses kinetic energy. At the same time each molecule exerts a force of attraction on other molecules and so they posses potential energy. The sum of the kinetic and potential energy is called the internal energy of the molecules. This internal energy, when flows out, is called heat energy. This energy is more in hot substances and less in cold substances and flows from hot substances to cold substances. In this lesson you will study about how this heat transfer takes place. Also you will study about the effect of heat, heat capacity, change of state and latent heat.

Item Type: Teaching/Learning Resource
Program: A publication under Free Textbook Programme of Government of Tamil Nadu
Learning outcomes: After completing this lesson, students will be able to: � understand the nature and the effects of heat. � differentiate the conducting powers of various substances. � list out good and bad conductors of heat and their uses. � explain conduction using kinetic theory. � describe the experiments to show convection in fluids. � understand the concept of radiation. � define specific heat capacity and thermal capacity. � describe the concept of change of state. � define specific latent heat of fusion and specific latent heat of vaporisation.
Access: Open
Uncontrolled Keywords: Physics
Subjects: Science General
Curriculam Level: 4. Junior Secondary
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Depositing User: COL Staff
Date Deposited: 11 Apr 2021 05:41
Last Modified: 22 Apr 2021 00:45

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