1. Introduction to Energy

2. Energy is the ability to cause change
What is energy?
Energy is the ability to cause change

3. There are two general types of energy
Kinetic Energy
Potential Energy

4. Potential Energy BrainPop
Kinetic Energy BrainPop

5. Kinetic Energy The energy an object has due to its motion
All moving objects have kinetic energy
Increases as mass increases
Increases as speed increases

6. Potential Energy
The energy an object has due to its position or condition
Potential energy resulting from gravity = gravitational potential energy (GPE)
GPE increases with height and mass
Change in condition example: pulling a rubber band

7. Potential Energy can transform into Kinetic Energy
This Photo by Unknown author is licensed under CC BY-SA.

8. Objects can have BOTH potential and kinetic energy at the same time

9. Objects can have BOTH potential and kinetic energy at the same time

10. Potential and Kinetic energy levels are constantly changing
This Photo by Unknown author is licensed under CC BY-SA.
Potential and Kinetic energy levels are constantly changing

11. Potential and Kinetic energy levels are constantly changing
This Photo by Unknown author is licensed under CC BY-SA.
Potential and Kinetic energy levels are constantly changing

12. Intro to Energy Video

13. Kinetic and Potential Energy are two types of energy that have many forms

14. Mechanical Energy The sum of an object's kinetic and potential energy
The energy of position and motion
An object's mechanical energy can be all potential, kinetic, or a combination of both

15. Calculate the Mechanical EnergyB D​ C​

16. Electrical Energy
Energy that results from the position or motion of charged particles
Electrical energy is generated when electrons move from one atom to another

17. This Photo by Unknown author is licensed under CC BY-NC-ND.

18. Thermal Energy Thermal is the kinetic energy of an object's particles
Particles at higher temperatures move faster than those at low temperatures (rememer the states of matter, particles in a solid don't move as quickly as the particles in a gas)
The faster an object's particles move, the more thermal energy it has

20. Which one has more thermal energy?

21. Sound Energy
Sound energy is kinetic energy caused by the vibration of particles in a medium such as steel, water, or air
As the particles vibrate, they transfer the sound energy to other particles

23. Sound Energy

24. Energy Type Practice

28. This Photo by Unknown author is licensed under CC BY-SA.

30. Forms of Energy BrainPop

31. Law of Conservation of Energy
Energy cannot be created or destroyed, it can only change forms

32. Energy Transformation
When energy changes from one form to another, it is called energy transformation
Any form, can change into another form

33. Mechanical -> Thermal and -> Sound
When you rub your hands together you hear sound and your hands get warm
Mechanical energy of moving hands is transformed into sound and thermal energy