Welcome to Science 71

1. Welcome to Science 71 April 29, 2014 Day 142

2. Period B Rules “ I promise to check the sink at the end of class, and …”

3. America Recycles Day is coming! Make it Zero Waste Day!

4. Objective • Explain and provide examples of methods of heat energy transfer • Illustrate and describe the kinetic theory of matter, including phase changes. • Demonstrate an understanding of the relationship between kinetic and potential energies. • The Main 3 Components to Electricity STUDENT VERNACULAR • Using vocabulary explain how heat moves from place to place, matter to matter • Using vocabulary explain how Kinetic Energy is responsible for the various states of matter (Solid, Liquid, Gas, etc) • How does an objects Energy level change as it moves from Potential Energy (PE) to Kinetic Energy (KE)

5. Agenda • Today’s Objective • Bell Work • Notes • Vocabulary Puzzle • What is PE and KE? • Discussion on Worksheets

6. Bell Work Looking at the items below, which ones are Potential Energies? A. Apple B. Fire C. Wood D. Book on Shelf E. Student running in gym

7. Bell Work Looking at the items below, which ones are Kinetic Energies? A. Battery B. Unlit Candle C. Turned on Light bulb D. Car in park on steep hill E. Cold Pizza

8. Energy • What is Energy? • How do you define Energy? • Class Examples

9. Energy Energy - The ability to do work -Be it Potential or Kinetic -Be it Mechanical, Thermal, Chemical, Electrical, Electromagnetic, Nuclear

10. Energy • Based upon Two Primary Categories: • Potential • Kinetic

11. Energy • Kinetic • Energy of Use • Energy of Motion • Energy of NOW!

12. Energy • Eureka #9 Clip • Kinetic Energy

13. Energy • Potential • Energy that is Stored. • It is Potential

14. Energy • Eureka #10 Clip • Potential Energy

15. Bell Work At what point does the diver have the most energy? • 1 • 2 • 3 • 4 • Not Sure

16. Energy • Conservation of Energy. • Energy is Neither Created or Destroyed • All Energy Must be Accounted For! • It can only change form

17. Energy

18. Energy • Secondary Categories: • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

19. Energy • Second Category • Mechanical -Associated with motion or position of object -K or P -Every Monday Students use Mechanical Energy to move from class to class

20. Energy • Second Category • Thermal -Total KE of all particles in an object -Ice Cream

21. Energy • Second Category • Chemical -Energy Stored in chemical bonds -Candles

22. Energy • Second Category • Electrical -Moving electrical charges (electrons) -Power to run E Devices

23. Energy • Second Category • Electromagnetic Energy (Radiation) -Energy travels in Waves -UV, IR, Microwaves

24. Energy • Second Category • Nuclear Energy -Stored in Nucleus of Atom -Fission vs. Fusion -Sun, Stars, Powerplants

25. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

26. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

27. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

28. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

29. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

30. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

31. Bell Work What type of Energy does this object represent best?(1) • Mechanical • Thermal • Chemical • Electrical • Electromagnetic • Nuclear

32. Bell Work Please put the items below into two categories (You choose the grouping) Hydroelectric Oil Coal Petroleum Biodiesel Gas Wind Turbine Biomass Solar

33. Energy Terms Renewable Energy Energy sources that can be replaced, or replenished.

34. Energy Terms Hydroelectric- Electricity being made by hydro-water

35. Energy Terms BiomassWood/Forests -Energy stored in trees in the carbon chemical bonds. Energy is old sunlight! Extra-(maple syrup)

36. Energy Terms Photovoltaic- Electricity being made by converting Sunlight/Visible Light. Solar Panels

37. Energy Terms Tidal Turbine- Energy production from the movement of ocean tides

38. Energy Terms Wave Turbine- Electricity produced by the movement of waves.

39. Energy Terms Bio-fuels Bioethanol Biodiesel- Fuel made from vegetables and grain

40. Energy Terms Wind Turbine- Electricity produced from the conversion of wind.

41. Energy Terms Non-Renewable Energy sources that once used, are non replaceable.

42. Energy Terms Fossil Fuels • Ancient Stored Sunlight • Coal, Oil, Natural Gas • Considered the Catalyst for Accelerated Global Warming (Climate Change)

43. Energy Terms Coal- Energy Source made of preserved swamp ecosystems. Water/Mud preserved. Largest world-wide energy source for producing electricity

44. Energy Terms Oil-Petroleum Naturally occurring liquid found in Earth, comprised of ancient Zooplankton and Algae, hydrocarbons(oceans)

45. Energy Terms Natural Gas -Source of energy from swamps, marshes and landfills. Ancient to recent. Bondies Island

46. Energy Terms Nuclear Power Plants -Energy produced by splitting atoms and using the heat to make steam and spin turbines

47. Energy Terms Unsure?! These energy sources have potential to be either renewable or non-renewable

48. Homework Hydrogen -Energy stored in the attractive bonds of Hydrogen gas. H2 want to be in a water state.

49. Energy Terms Nissan Leaf Commercial http://www.youtube.com/watch?v=BNeEVkhTutY

50. Energy Term Conservation of energy- Law-Energy can neither be destroyed or created. All energy must be accounted for