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Explain the Concepts and principles of energy and power.

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Explain the Concepts and principles of energy and power. Objective 7.09 Define Energy, Work, Power Energy The ability to do work. Power The amount of work ... – PowerPoint PPT presentation

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Title: Explain the Concepts and principles of energy and power.


1
Explain the Concepts and principles of energy and
power.
  • Objective 7.09

2
Define Energy, Work, Power
  • Energy The ability to do work.
  • Power The amount of work done in a given period
    of time.
  • Work is the application of force that moves an
    object a certain distance.

3
Six Major Forms of Energy
  • Mechanical Energy
  • Radiant Energy
  • Chemical Energy
  • Electrical Energy
  • Thermal Energy
  • Nuclear Energy

4
Mechanical Energy
  • Is often provided by the motion of a device.

5
Radiant Energy
  • Is the energy emitted by electromagnetic devices.

6
Chemical Energy
  • Energy that is stored within a substance or
    product.

7
Electrical Energy
  • Energy produced as a result of the movement of
    electrons through a conductor.

8
Thermal Energy
  • Is the name given to heat energy. Thermal cannot
    be seen but is generally felt.

9
Nuclear Energy
  • Energy associated with the internal bonds of an
    atom.

Fission
Fusion
10
Energy Conversion Process
  • Mechanical Advantage
  • Hydraulics Systems
  • Pneumatic Systems
  • Potential Energy
  • Kinetic Energy

11
Mechanical Advantage
  • An increase in force provided by a machine.

12
Hydraulics System
  • Those that control and transmit energy through
    liquids.

13
Pneumatic Systems
  • Those that control and transmit energy through
    gases.

14
Potential Energy
  • Is any form of stored energy.
  • Kinetic energy is energy in motion

15
Newtons Laws of Motion
  • 1st law a body of mass in a state of rest tends
    to remain at rest and a body of mass in motion
    tends to remain in motion, unless acted upon by
    another force.

16
Newtons Laws
  • 2nd Law states that an unbalance or force on a
    body tends to produce an acceleration in the
    direction of the force.

17
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18
Law of Conservation of Energy
  • Energy cannot be created nor destroyed, however
    it can be converted from one form to another.

19
Renewable / Nonrenewable
  • Renewable
  • Solar Energy
  • Non renewable
  • Petroleum based fuel

20
2nd Law of Thermodynamics
  • No energy system can be 100 efficient.
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