1. Section 14.6 Forms of Energy

2. Forms of Energy The six major forms of energy are: Mechanical Energy
Thermal Energy
Chemical Energy
Electrical Energy
Electromagnetic Energy
Nuclear Energy

3. Mechanical Energy Mechanical Energy
Energy associated with the motion and position of everyday objects.
Examples
Speeding Train
Bouncing balls
Sprinting Athletes

4. Thermal Energy Thermal Energy
Total potential and kinetic energy all the microscopic particles in an object
Examples
Friction
Boiling Water
Heating Pad

5. Chemical Energy Chemical Energy
Energy stored in the chemical bonds in compounds. When these bonds are broken, the released energy can do work.
Examples
Fireworks
Burning Wood
Gasoline

6. Electrical Energy Electrical Energy
Energy associated with electrical charges.
Examples
Lightning Bolts
Television
Toaster

7. Electromagnetic Energy
Energy that travels though space in the form of waves.
Examples
Visible Light
X-Rays
Tanning Beds (UV Light)

8. Nuclear Energy Nuclear Energy Energy stored in atomic nuclei Examples
Nuclear Power Plant (Reactor)
Sun
Nuclear Weapons

9. Energy Conversion Energy Conversion
Energy can be converted from one form to another

10. Wind-Up Toy
Elastic Potential Energy in a compressed spring. When the spindle unwinds, potential energy is converted to kinetic energy of the toys moving parts.

11. Energy Conservation Energy Conservation
The Law of conservation of energy states that energy can not be created or destroyed, it only changes form.

12. Bicycle
The bicycle had kinetic energy. The bike slowed down and stopped because of frictional forces acting over a distance. The work done by friction changes the kinetic energy into thermal energy.
So when we account for the thermal energy (friction) this is equal to the kinetic energy the bike previously had, thus energy is conserved overall.

13. Energy Conversion / Energy Conservation
Roller Coaster
Energy Conversion / Energy Conservation

14. Energy
Gravitational Potential Energy if an object is converted to:

15. Energy
How is potential energy converted to kinetic energy in the following pendulum:

16. Energy
How is potential energy converted to kinetic energy in the following pendulum:

17. Energy
Where is the greatest PE and KE points on the following pendulum?

18. Activity Label the types of energy in each example:
Cars engines gears:
Gasoline:
Friction in the engine creating heat:
The car battery
Mechanical Energy
Chemical Energy
Thermal Energy
Chemical Energy

19. Activity
As a group, find the five steps (four types of energy) that a match uses to convert energy
Muscles us chemical energy to move your hand (kinetic energy) to strike the match
Friction between the match and the matchbox converts kinetic energy into thermal energy (heat).
Thermal energy to chemical energy to light the match
Chemical energy converted to thermal energy
Thermal energy to electromagnetic energy (Flame Waves)