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Energy

Energy. energy - the ability to do work or cause change. (Remember- work can only occur if something moves!). Types of Energy. 1) kinetic - energy of an object in motion. 2) potential - the energy of an object’s position or shape. Kinetic Energy. kinetic energy = ½ mass x velocity 2.

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Energy

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  1. Energy energy- the ability to do work or cause change. (Remember- work can only occur if something moves!)

  2. Types of Energy 1) kinetic- energy of an object in motion 2) potential- the energy of an object’s position or shape.

  3. Kinetic Energy kinetic energy = ½ mass x velocity2 Ek= ½ mv2 measured in units of N-m (J)

  4. Gravitational Potenital = Energy weight x height Potential Energy Ep = w x h measured in units of N-m (J)

  5. Forms of Energy 1) mechanical energy- the energy of the position or motion of an object.

  6. 2) thermal energy- the total potential and kinetic energy of particles in an object.

  7. 3) electrical energy- the energy of electric charges.

  8. 4) chemical energy- the potenial energy stored in the chemical bonds.

  9. 5) nuclear energy- the potenial energy stored in the nucleus of an atom.

  10. 6) electromagnetic energy- the energy of light and other forms of radiation.

  11. Energy Transformations Kinetic to Potential click (most common) Multiple Transformations click

  12. convection- the transfer of heat through the movement of a fluid.

  13. conduction- the transfer of heat from one particle of matter to another.

  14. radiation- the transfer of heat through electromagnetic waves.

  15. Law of Conservation of Energy states that energy cannot be created nor destroyed.

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