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

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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.

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Six Major Forms of Energy

• Mechanical Energy
• Radiant Energy
• Chemical Energy
• Electrical Energy
• Thermal Energy
• Nuclear Energy

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Mechanical Energy

• Is often provided by the motion of a device.

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Radiant Energy

• Is the energy emitted by electromagnetic devices.

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Chemical Energy

• Energy that is stored within a substance or
  product.

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Electrical Energy

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

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Thermal Energy

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

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Nuclear Energy

• Energy associated with the internal bonds of an
  atom.

Fission
Fusion
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Energy Conversion Process

• Mechanical Advantage
• Hydraulics Systems
• Pneumatic Systems
• Potential Energy
• Kinetic Energy

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Mechanical Advantage

• An increase in force provided by a machine.

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Hydraulics System

• Those that control and transmit energy through
  liquids.

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Pneumatic Systems

• Those that control and transmit energy through
  gases.

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Potential Energy

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

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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.

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Newtons Laws

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

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Law of Conservation of Energy

• Energy cannot be created nor destroyed, however
  it can be converted from one form to another.

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Renewable / Nonrenewable

• Renewable
• Solar Energy

• Non renewable
• Petroleum based fuel

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2nd Law of Thermodynamics

• No energy system can be 100 efficient.