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Welcome to Science 71

Welcome to Science 71. November 21, 2010 Day 57. Homework. Homework Concept Layer DUE 11-15 Concept Objective Quiz Tuesday 11-23-10 Continue on Building Layer. In the News. New Eavesdropper satellite placed in space this past Saturday. Largest Unmanned Satellite. In the News.

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Welcome to Science 71

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  1. Welcome to Science 71 November 21, 2010 Day 57

  2. Homework • Homework • Concept Layer • DUE 11-15 • Concept Objective Quiz • Tuesday 11-23-10 • Continue on Building Layer

  3. In the News New Eavesdropper satellite placed in space this past Saturday. Largest Unmanned Satellite.

  4. In the News Study: lower carbon emissions linked to recession. However, globally it still increases the input of CO2 compared to the removal of CO2

  5. 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)

  6. Agenda • Concept Objective – Tuesday • Bell Work – Study for Quiz • Energy Worksheets NEED Turn in • Concept Defense Questions-Practice _ Modeling • Vocabulary Puzzle • B Layer Work

  7. Quiz Topics • What’s energy? Primary (KE/PE) and Secondary 6 Types • Temperature Scales • Phase of Matter (BEC, Solid, Liquid, Gas, Plasma) and amount of KE • Conduction, Convection, Radiation • Renewable/Non-renewable • Vocabulary

  8. Bell Work What is something that can do work or cause a change? • A rock • Energy • Windows

  9. Bell Work What type of Primary Energy does this falling object represent best? • Kinetic • Potential

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

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

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

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

  14. Bell Work D C E KE 1 PE 2 B A What is the Kinetic Energy of Ball at point E? 1 N 2 N 3 N 4 N None above And Point A?

  15. Bell Work Which answer contains the temperatures of Absolute Zero, Water Freezes, and Water Boils? (In any scale, pick only one scale) • (-460, 273, 373) • (0, 273, 373) • (-460, 32, 212) • (-273, 0, 100) • (-273, 32, 212)

  16. Bell Work Please tell me which state of matter we are observing? • Solid • Liquid • Gas How do you know?

  17. Bell Work Please put these states of matter into order of Increasing Kinetic Energy. 1. 2. 3.

  18. Bell Work Looking at the hand, as the heat is flowing through the metal to touch the hand, we consider this transfer ___________. • Convection • Radiation • Conduction

  19. Bell Work What would you say about the walls of the working cooler on the right? They are made of a(n) _______ • Conductor • Insulator

  20. Bell Work What is the larger portion of the USA’s Energy use comprised of? • Renewable Energies • Non-Renewable Energies

  21. All 5 Phases/States • Solid, Liquid, Gas, Plasma, BoseEinstein • All Based upon the Amount of KE

  22. States of Matter There are Three Main States of Matter: • Solid • Liquid • Gas • However there are many states currently.

  23. Other States of Matter • Ordinary Temps • Liquid Crystal States (Digital Watch) Mlcls pnt sm direc • Amorphous Solid (Glass, Rubber, Polystyrene) • Magnetically-ordered States (moments aligned 2 dif ways) • Low Temps • Superconductors (Cold Magnets –MRI) • Superfluids (Climbing helium 3 or 6) • Bose-Einstein Condensates (called “Fifth State” helium 4) • High Energy • Plasma (ionized gas lightning, stars, sun) • Quark-gluon Plasma (CERN 2000 Observe individual Quarks) • Proposed States • Degenerate Matter (White dwarves and Neutron Stars) • Supersolid (Solid with superfluid properties • String-net liquid (atoms have the same spin, not normal) • Rydberg Matter (condensation of excited atoms)

  24. States of Matter Solid • Particles arranged in definite order • Vibrate • Close together

  25. States of Matter Liquid • Particles arranged in Random order • Slide past, attaching and releasing • Close together

  26. States of Matter Gas • Particles not arranged. • Scattered, Random • Fast • Very Spread out

  27. States of Matter Other States: • Plasma-Lightening • Excited/Ionized Gases

  28. Bell Work #1 How would you Describe a Solid? • Packed together tightly in relatively fixed positions. Can Vibrate!

  29. Bell Work #2 How would you Describe a Gas? • Moving so fast that they do not stay close to one another. Expand to fill space!

  30. Bell Work #3 How would you Describe a Liquid? • Particles held together, but not so tightly that they can’t move past one another. No Shape, but Volume!

  31. All 5 Phases Journal #16

  32. Temperature Scale

  33. Temperature Conversions Absolute Water Water Zero Freezes Boils F -460 32 212 C –273 0 100 K 0 273 373 Compare this to a Number line as in Math!

  34. Phase Changes

  35. Silly Putty What do you think will happen? A the ball will bounce B the ball will shatter C the ball will stick to the ground D Not sure Superliquids

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

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

  38. Energy Term Conservation of energy Honda Commercial Rube Goldberg

  39. Movie on States of Matter Look at worksheet C3 and Page 155

  40. Thermal Energy • Total amount of Kinetic Energy from Particles. As Kinetic Energy of particles increases, so does the Thermal energy.(Heat Energy) The particles move faster.

  41. Question Which cup has the most Thermal energy, assuming that all cups are at the same temperature? The one with the least amount of Cocoa The one with the largest amount of Cocoa All have the same amount of Energy Not sure/Do not understand

  42. Energy Transfer Heat- Movement of Thermal energy from a substance at a higher temperature to another at a lower temperature

  43. Bell Work What is the best order for following the energy in this situation? • IR>Sun>Pot>Hand>Water • Sun>Pot>Water>Hand>IR • Sun>IR>Pot>Water>Hand • Hand>Pot>IR>Water>Sun

  44. When addressing the movement of Energy, there are three main forms we can observe. • Radiation • EM forms like IR, UV • Convection • Movement of Heat in fluids Convection Currents • Conduction • Heat transfer by direct contact

  45. Other States of Matter Solid Liquid Gas

  46. Phase Changes

  47. Temperature Scale

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