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Unit 26  Types Of Energy
 

Unit 26 Types Of Energy

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Forms of Energy

Forms of Energy

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    Unit 26  Types Of Energy Unit 26 Types Of Energy Presentation Transcript

    • Unit 26
      Types of Energy
    • Law of Conservation of Energy
      Energy can neither be created nor destroyed. Energy changes from one kind to another.
      The total energy of an object never changes.
    • Kinetic Energy
      Anything that has mass and movement has kinetic energy.
      The kinetic energy of an object in this case is given by the relation:
      KE = (1/2)mv2
      m=mass of the object
      V=velocity of the object
      The greater the mass or velocity of a moving object, the more kinetic energy it has.
    • Kinetic Energy
      The greater the mass or velocity of a moving object, the more kinetic energy it has.
    • Potential Energy
      Potential energy is the energy stored in a system. It is the energy that can be released to become kinetic or another form.
      PE = mgh
       PE = Energy (in Joules)
      m = mass (in kilograms)
      g = gravitational acceleration of the earth (9.8 m/sec2)
      h = height above earth's surface (in meters)
    • Potential Energy
    • Mechanical Energy
      Mechanical energy is also the total amount of kinetic and potential energy in a system.
      Wind-up toys, grandfather clocks, and pogo sticks are examples of mechanical energy. Wind power uses mechanical energy to help create electricity.
      Potential energy + Kinetic energy =
      Mechanical energy
    • Mechanical Energy Summary
    • What is Electromagnetic Energy?
      • Radio Waves
      • Microwaves
      • Infrared
      • Visible Light
      • Ultraviolet
      • X-rays
      • Gamma Rays
    • What is Electrical Energy?
      Energy caused by the movement of electrons
      Easily transported through power lines and converted into other forms of energy
    • What is Chemical Energy?
      • Energy that is available for release from chemical reactions.
      • The chemical bonds in a matchstick store energy that is transformed into thermal energy and electromagnetic energy when the match is struck.
    • Examples of Stored Chemical Energy
    • What is Nuclear Energy?
      Nuclear energy is the energy stored in the nucleus of an atom.
    • Summary of Energy-Part 1
    • Summary of Energy-Part 2
    • QUIZ TIME!
      What type of energy cooks food in a microwave oven?
      What type of energy is the spinning plate inside of a microwave oven?
    • QUIZ TIME!
      Electrical energy is transported to your house through power lines.
      When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?
    • QUIZ TIME!
      What energy transformation occurs when an electric lamp is turned on?
      ELECTRICAL ENERGY

    • What types of energy are shown below?
    • What types of energy are shown below?
      Potential
    • What type of energy is shown below?
    • What type of energy is shown below?
      Chemical
    • What types of energy are shown below?
    • What types of energy are shown below?
      Electromagnetic
      (infrared with the remote and visible light from the TV)
    • What type of energy is shown below?
    • What type of energy is shown below?
      Chemical
    • What type of energy is shown below?
    • What type of energy is shown below?
      Electromagnetic
      (Infrared and Visible Light)
    • Energy Conversion In A Car
    • Energy Conversion
      Thermal Energy
      Chemical Energy
      Electrical Energy
      Electromagnetic Energy
      Mechanical Energy