Lower Secondary Science-Type of Energy

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Lower Secondary Science-Type of Energy

  1. 1. Type of Energy
  2. 2. Electrical Energy• Can be generated easily from other form of energy• Passed quickly through electric conductor• Can be changed to other type of electric easily
  3. 3. Heat Energy• Can be felt• Flow from a region of high temperature to a region of low temperature• Can be transmitted through a vacuum
  4. 4. Sound Energy• Can be heard• Produced by strong vibration of molecules• Cannot pass through a vacuum
  5. 5. Light Energy• Can be seen• Can pass through a vacuum• The speed of light is equal to the universal speed limit; light travel the fastest• The light ray can be bent if there is a mirror
  6. 6. Kinetic Energy• Energy in a moving object• The higher the speed and the mass, the higher the kinetic energy
  7. 7. Potential Energy• Stored energy• Gravitational Potential Energy• Elastic Potential Energy
  8. 8. Gravitational Potential Energy• Gravitational potential energy increase when the object is at a higher altitude
  9. 9. Elastic Potential Energy• Energy stored in a stretching elastic object
  10. 10. Chemical Energy• Energy stored in substance• Can be easily changed to other forms of energy
  11. 11. Nuclear Energy• Energy stored in the nuclei of atom
  12. 12. Summary• Electrical energy is easily generated . It pass quickly through electric conductor. Heat energy flow from a region of high to low temperature. Strong vibration of molecule form sound energy. Light energy travel the fastest and can be bent .Kinetic Energy is energy in moving object. Amount of kinetic energy is determined by the speed and mass. Potential energy is stored energy. The object’s altitude determine the amount of gravitational potential energy. Elastic potential energy is elasticity stored in an elastic object. Chemical energy is energy stored in substance. Nuclear Energy is energy

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