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Topic 2 Thermal Physics - Physics Resources

IGCSE Physics 0625 notes for Topic 2: Thermal Physics : Revised on: 14 September 2010 1 Topic 2 Thermal Physics Thermal Physics : The branch of Physics that study the temperature, heat energy and their relation to the matter . Temperature: It is the degree of hotness of an object and it can be measured by thermometer. Temperature can be express by Celsius (oC), Fahrenheit (oF) or K scale. Heat: It is the energy which travels from high temperature to low temperature in a matter . It is also called Thermal or internal energy.

Matter is made up of atoms and molecules, which may only be seen by electronic microscope. Kinetic Molecular Theory of Matter: The kinetic molecular theory explains the forces between molecules and the energy that they possess. This theory has 3 basic assumptions. 1. Matter is made up of tiny small particles (atoms, molecules or ions).

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