1. Kinetic and Potential Energy I can identify types of energy, including potential and kinetic.

2. Definition of Energy… The ability to do work or cause change.

3. Energy has 2 main classifications: potential energy or kinetic energy.

4. Potential Energy Potential Energy Potential energyPotential energy –Stored up energy or energy at rest.

5. KINETIC ENERGY: KINETIC ENERGY: Energy in motion

6. Potential energy isstored energy or energy at rest. What point would have the greatest amount of potential energy? It is the highest point, so it will fall the furthest, so it has more potential energy.

7. Kinetic energy isenergy in motion. The greatest kinetic. Where would the greatest kinetic energy be?

8. Kinetic energy is ….. energy in motion. As potential energy decreases, kinetic energy increases. So, the greatest amount of kinetic energy would be…. just before the ball hits the ground.

11. ____________ energy? ________ energy? potential kinetic

12. When the bow string is pulled back all the way, the type of energy demonstrated would be _______________ energy. potential Once the string is let go the arrow will fly toward the bulls eye. The arrow moving demonstrates ___________ energy. kinetic

13. We can now look at other forms of energy and classify them as either potential energy or kinetic energy

14. Types of Energy

15. Mechanical - Moving energy

16. Mechanical energy: moving energy Kinetic Energy!

17. Types of Energy Mechanical - Electromagnetic -

18. Electromagnetic Energy? o Light energy o Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands

19. Types of Energy Mechanical - Electromagnetic - Electric -

20. Electric Energy - energy that comes through electrical lines or lightning.

21. Types of Energy Mechanical - Electromagnetic - Electric - ________ energy Thermal - heat

22. Thermal energy is heat energy.

23. Types of Energy Mechanical - Electromagnetic - Electric - Thermal - Nuclear -

24. Nuclear power plants, atomic bomb, stars (sun- solar energy) Nuclear energy – Nuclear power plants, atomic bomb, stars (sun- solar energy)

25. Types of Energy Mechanical - Electromagnetic - Electric - Thermal - Chemical - Nuclear - Examples:

26. Chemical Energy o Energy released from chemical reactions. Chemical energy is stored on the end of a match.

27. Examples of Chemical Energy Fossil fuels battery food

28. Where do we get our energy from?

30. Where do we get our energy? When we eat food, what type of reaction occurs to give us the energy? CHEMICAL

31. Plants take in the energy from the sun. They use this energy in a CHEMICAL process of photosynthesis to make food for the plant to grow.

33. Potential Energy Kinetic Energy

34. Clips Scroll to potential and kinetic

35. interactives Energy Million Dollar Question Ride the Rollercoaster Stemscopes Build a Rollercoaster

36. Types of Energy Mechanical - Electromagnetic - Electric - Thermal - Chemical - Nuclear - Moving energy Light, x-ray, gamma energy Heat energy Energy carried in electrical lines or lightning Nuclear plants, bombs, stars Fossil fuels, food,

37. Potential Energy Potential Energy Potential energyPotential energy –Stored up energy or energy at rest.

38. KINETIC ENERGY: KINETIC ENERGY: Energy in motion

39. Potential energy isstored energy or energy at rest. What point would have the greatest amount of potential energy? It is the highest point, so it will fall the furthest, so it has more potential energy.

40. Potential energy isstored energy or energy at rest. What point would have the least amount of potential energy? The lowest point would have the least amount of stored energy or potential energy.

41. Kinetic energy is ….. energy in motion. As potential energy decreases, kinetic energy increases. So, the greatest about of kinetic energy would be…. just before the ball hits the ground.

42. When the bow string is pulled back all the way, the type of energy demonstrated would be _______________ energy. potential Once the string is let go the arrow will fly toward the bulls eye. The arrow moving demonstrates ___________ energy. kinetic