Energy Conservation And Transformation

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Physics 9 Lesson 61: Power generation – thermal and hydroelectric power

Physics 9 Lesson 61: Power generation – thermal and hydroelectric power 1. Theoretical Summary 1.1. The role of electricity in life and production Electricity is easily converted into other forms of energy. Electrical energy converted to mechanical energy Electricity converted to heat Electrical energy converted into light energy Electrical energy converted into chemical energy – …

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Physics 9 Lesson 62: Wind power – Solar power – Nuclear power

Physics 9 Lesson 62: Wind power – Solar power – Nuclear power 1. Theoretical Summary 1.1. Wind generator Wind energy is the kinetic energy of air moving through the Earth’s atmosphere. – The propeller is attached to the rotating shaft of the generator’s rotor. The stator is the electric coil. The blowing wind imparts mechanical …

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Physics 9 Lesson 60: Law of conservation of energy

Physics 9 Lesson 60: Law of conservation of energy 1. Theoretical Summary 1.1. Energy transformation in mechanical, thermal, and electrical phenomena a) Convert potential energy into kinetic energy and vice versa. Loss of energy – In mechanical processes, mechanical energy is always reduced, the lost mechanical energy has been converted into heat energy. If the …

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