Forms of Energy

1
Forms of Energy
2
Energy

• Ability to do work.

3
Nuclear Energy

• From splitting or combining atoms of certain
  elements which gives off radiation.

4
Electrical Energy

• Energy produced by the movement of electrons.
  (blender)

5
Mechanical Energy

• The total kinetic and potential energy system.
  (water wheel)

6
Radiant Energy

• Energy transmitted in the form of waves through
  space or some medium
• (microwaves)

7
Chemical Energy

• Energy resulting from bonds being broken or
  formed in chemical reactions. (food breaking up
  in the body)

8
Kinetic Energy

• Energy in motion (child on a swing)

9
Magnetron Tube

• Energy source for microwave ovens.

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Microwaves

• Low frequency waves of radiant energy.

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Endothermic Reactions

• Absorbs or stores energy
• Lowering of temperature
• Ice cream

12
Exothermic Reactions

• Energy released outside during the reaction.
• digestioin

13
Potential Energy

• Stored energy (throwing a rock)

14
External Energy

• Energy applied to an object by another force

15
Internal Energy

• Energy within an object. (fat cells)

16
Measuring energy

• Heat- energy transfer from one body to another
  caused by temperature difference between the 2
  bodies.
• Calorie heat needed to raise the temperature of
  one gram of water one degree Celsius.

17

• Temperature measure of the average kinetic
  energy of a group of individual molecules.
• Not the same as heat.
• Measured with thermometers.