1. Unit 26
Types of Energy

2. The total energy of an object never changes.
Law of Conservation of Energy
Energy can neither be created nor destroyed. Energy changes from one kind to another.
The total energy of an object never changes.

3. Kinetic Energy Anything that has mass and movement has kinetic energy.
The kinetic energy of an object in this case is given by the relation:
KE = (1/2)mv2
m=mass of the object
V=velocity of the object
The greater the mass or velocity of a moving object, the more kinetic energy it has.

4. Kinetic Energy
The greater the mass or velocity of a moving object, the more kinetic energy it has.

5. Potential Energy
Potential energy is the energy stored in a system. It is the energy that can be released to become kinetic or another form.
PE = mgh
 PE = Energy (in Joules)
m = mass (in kilograms)
g = gravitational acceleration of the earth (9.8 m/sec2)
h = height above earth's surface (in meters)

6. Potential Energy

7. Potential energy + Kinetic energy =
Mechanical Energy
Mechanical energy is also the total amount of kinetic and potential energy in a system.
Wind-up toys, grandfather clocks, and pogo sticks are examples of mechanical energy. Wind power uses mechanical energy to help create electricity.
Potential energy + Kinetic energy =
Mechanical energy

8. Mechanical Energy Summary
Potential Energy
Gravitational PE
mgh
Elastic PE
Energy that is stretched or compressed.
Kinetic Energy
The energy of motion

9. What is Electromagnetic Energy?
Radio Waves
Microwaves
Infrared
Visible Light
Ultraviolet
X-rays
Gamma Rays

11. What is Electrical Energy?
Energy caused by the movement of electrons
Easily transported through power lines and converted into other forms of energy

12. What is Chemical Energy?
Energy that is available for release from chemical reactions.
The chemical bonds in a matchstick store energy that is transformed into thermal energy and electromagnetic energy when the match is struck.

13. Examples of Stored Chemical Energy

14. What is Nuclear Energy?
Nuclear energy is the energy stored in the nucleus of an atom.

15. Summary of Energy-Part 1
Mechanical Energy
Energy of Motion and Position of everyday objects.
Electrical Energy
The energy associated with electric charges.
Chemical Energy
Energy stored in chemical bonds.

16. Summary of Energy-Part 2
Electromagnetic Energy
Energy that travels through space in the form of waves.
Nuclear Energy
The energy stored in atomic nuclei
Thermal Energy
Heat Energy.

17. QUIZ TIME! What type of energy cooks food in a microwave oven?
What type of energy is the spinning plate inside of a microwave oven?

18. QUIZ TIME!
Electrical energy is transported to your house through power lines.
When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?

19. What energy transformation occurs when an electric lamp is turned on?
QUIZ TIME!
What energy transformation occurs when an electric lamp is turned on?
ELECTRICAL ENERGY 

20. What types of energy are shown below?

21. What types of energy are shown below?
Potential

22. What type of energy is shown below?

23. What type of energy is shown below?
Chemical

24. What types of energy are shown below?

25. What types of energy are shown below?
Electromagnetic
(infrared with the remote and visible light from the TV)

26. What type of energy is shown below?

27. What type of energy is shown below?
Chemical

28. What type of energy is shown below?

29. What type of energy is shown below?
Electromagnetic
(Infrared and Visible Light)

30. Energy Conversion In A Car

31. Energy Conversion
Thermal Energy
Chemical Energy
Electrical Energy
Electromagnetic Energy
Mechanical Energy