p2.2 energy

• renewable


  they won't run out
• non renewable

  they will run out
• 3 examples on non renewable energy

  coal, nuclear and oil
• 3 examples of renewable energy

  tidal, wind, solar
• What are the disadvantages of non renewable energy?

  expensive or bad for health
• kinetic energy


  anything moving
• thermal energy


  anything that has heat
• chemical potential energy


  anything that releases energy by checmial reaction
• gravitational potential energy


  anything above the ground
• electristatic potential energy


  anything that has electricity
• magnetic energy

  anything magnetic
• nuclear energy


  atomic nuclear relases this energy
• energy is always measure in


  joules
• conservation of mass-

  the amount of mass never changes
• conservation of momentum-


  the total amount of momentum never changes
• conservation of energy-


  the total amount of energy never changes
• work done is

  the amount of energy transferred wehn moving an object
• kinetic energy is


  the enrgy soted in an objects beacuse its moving
• greater velocity and mass means

  greater kinetic energy
• power is


  the amount of time transfered per second