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Transcript

  • 1. Energy 4-16-08
  • 2.
    • Define energy & know the unit of measurement
    • State the law of conservation of energy
    • Define & calculate potential and kinetic energy
  • 3. Energy
    • the ability to cause change
  • 4. Types of energy
    • Light
    • Thermal
    • Chemical
    • Electrical
    • Magnetic
    • Sound
    • Nuclear
    • Mechanical
  • 5. Mechanical energy
    • the ability to cause a change in motion
  • 6. Mechanical Energy
    • There are two types
    • Potential energy
    • Kinetic energy
  • 7. Unit of Measurement
    • In order to cause a change in motion we know we need to apply a force in order to change an object’s position.
  • 8. Newton meter (Nm)
  • 9. Newton meter
    • can also be called a joule (J)
  • 10. Kinetic Energy
    • refers to anything in motion
  • 11.
    • Kinetic energy is dependent on an object’s mass & speed.
    • KE = mass x velocity 2
    • 2
  • 12. Potential Energy
    • the energy that is stored and has the potential to cause motion.
    • PE = weight x height
  • 13. Conservation of Energy
    • Energy can change from one form to another, but the total amount of energy is always the same.