1. What is an example of potential energy?
Journal #66
What is energy?
What is an example of potential energy?
What is an example of kinetic energy?

2. Forms of Energy

3. What is energy? Ability to do work or cause change Produces Warmth
Produces Light
Produces Sound
Produces Movement
Produces Growth
Powers Technology

4. POTENTIAL KINETIC Classes of Energy
Energy of motion
Stored energy or energy of position
Motion, Electrical, Sound, Radiant, Thermal
Gravitational, Stored Mechanical, Nuclear, Chemical

5. Potential Energy
Gravitational Energy – energy an object or substance has because of its position
Anything “up high”

6. Potential Energy
Stored Mechanical Energy – stored in an object by the application of force
Must push or pull on an object

7. Nuclear Energy – energy stored in the nucleus of an atom
Potential Energy
Nuclear Energy – energy stored in the nucleus of an atom
Holds the atom together

8. Chemical Energy – energy stored in the bonds between atoms
Potential Energy
Chemical Energy – energy stored in the bonds between atoms
Holds molecules together

9. Kinetic Energy
Mechanical (Motion) Energy – movement of objects or substances from one place to another .

10. Electrical Energy – movement of electrons
Kinetic Energy
Electrical Energy – movement of electrons
NOT AN ELECTRON PARADE!

11. Kinetic Energy
Sound Energy – movement of energy through substances in the form of longitudinal/compression waves

12. Kinetic Energy
Radiant Energy – electromagnetic energy that travels in transverse waves

13. Kinetic Energy
Thermal (Heat) Energy – internal energy of a substance due to the vibration of atoms and molecules making up the substance

14. Energy Transfers
1 – Energy can not be created nor destroyed, only changed.
Law of Conservation of Energy
First Law of Thermodynamics
2 – Energy will always transfer from high to low.
3 – No energy transfer is 100% efficient.

15. Name the Transfer

16. Name the Transfer

17. Name the Transfer

18. Name the Transfer

19. In Review Energy does work or causes change.
Two main classes of energy: potential and kinetic.

20. Energy can not be created nor destroyed, only changed.
Potential Energy – stored energy or energy of position
Gravitational, Stored Mechanical, Nuclear, Chemical
Kinetic Energy – energy of motion
Motion/Mechanical, Electrical, Sound, Radiant, Thermal/Heat
Energy can not be created nor destroyed, only changed.
Energy always transfers from high to low.
Energy transfers are never 100% efficient.

22. List the 9 types of energy that we studied
Review
List the 9 types of energy that we studied

23. Review
Energy that is stored (or energy of position is commonly referred to as ____ energy.

24. Describe the energy transformations that occurred for a car to move.
Review
Describe the energy transformations that occurred for a car to move.