ENERGY CONVERSIONS

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ENERGY CONVERSIONS
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ENERGY CONVERSIONS

• 1. Mechanical (total energy) ? Electromagnetic
  (jumping electrons)
• A. Band-Aid Demo If you quickly peel off the
  wrapper in a dark rooom, you will see a little
  light (try it at home)

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ENERGY CONVERSIONS

• 1. Mechanical (total energy) ? Electromagnetic
  (jumping electrons)
• B. Wintergreen Life-Savers If sugar is
  subjected to pressure, there is light. (when you
  bite on it)

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ENERGY CONVERSIONS

• 2. Mechanical (total energy) ? Nuclear (in
  nucleus)
• A. Stars Gravity causes compressions, so
  nuclear reactions take place.

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ENERGY CONVERSIONS

• 3. Electrical (charged particles) ? Mechanical
  (total energy)
• A. Motor A current passes through a coil and
  causes it to spin (KE)

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ENERGY CONVERSIONS

• 4. Chemical (bonds of atoms) ? Electrical
  (charged particles)
• A. Nervous System Neurons transmit information
  by electrical impulses.

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ENERGY CONVERSIONS

• 4. Chemical (bonds of atoms) ? Electrical
  (charged particles)
• B. Battery It chemically stores, then releases
  energy

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ENERGY CONVERSIONS

• 5. Chemical (bonds of atoms) ? Electromagnetic
  (jumping electrons)
• A. Matches The stored energy in the match is
  converted to light energy when it strikes the
  match box.

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ENERGY CONVERSIONS

• 6. Chemical (bonds of atoms) ? Mechanical (total
  energy)
• A. Muscular Movements Muscles convert the
  chemical energy from sugars into mechanical
  energy.

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ENERGY CONVERSIONS

• 6. Chemical (bonds of atoms) ? Mechanical (total
  energy)
• B. Bombs Bombs convert the stored GPE in
  radioactive atoms into mechanical energy by
  rearranging the molecules.

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ENERGY CONVERSIONS

• 6. Chemical (bonds of atoms) ? Mechanical (total
  energy)
• C. Putt-Putt Boat This actually goes from
  chemical ? heat ? mechanical. As the water
  boils, it sucks in the water and blows steam out.

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ENERGY CONVERSIONS

• 7. Mechanical (total energy) ? Thermal (heat)
• A. Friction

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ENERGY CONVERSIONS

• 8. Electromagnetic (jumping electrons) ?
  Mechanical (total energy)
• A. Radiometer When a light shines on it, the
  black side is heated up. As air heats up, it
  expands and gives it a push to spin.

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ENERGY CONVERSIONS

• 9. Electromagnetic (jumping electrons) ?
  Electrical (charged particles)
• A. Overhead with bright light Electrons in
  atoms begin to jump from one energy level to
  another to give us light. When they start to
  move, this is electrical energy.