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energy and conservation laws
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- Mon Jun 22 2009
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... Law of conservation energy 1. Types of energy: a. Gravitational potential energy b. Kinetic energy c. Light energy d. Chemical energy e. Nucleus energy f. Elastic energy g. Heat energy h. Electricity energy i. Infrared energy 2. Energy change from one form to another form: a. Radio electricity sound b. Match chemical heat+light c. Light bulb electrical light+heat d. Catapult potential kinetic e. Hydroelectric gravitational kinetic electrical f. Electric fire electrical heat g. Atomic bomb chemical heat, sound, light h. Microphone electrical sound i. Car engine chemical kinetic heat j. Human body chemical heat, kinetic, sound 5. Energy flow diagram: a. Electrical light bulb: Heat energy Light energy b. Petrol driven car: Heat energy escaping from engine Heat energy wasted in overcoming friction Heat energy wasted in overcoming air resistance. c. Weight lifter : Kinetic energy Heat energy d. Electrical kettle: Heat energy used in boiling water Heat energy lost through evaporation e. Solar power calculator: Electrical energy used Heat energy wasted 6. Energy is transformed and used














