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OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
OLM Science6_9
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OLM Science6_9

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Grade 6, Chapter 9

Grade 6, Chapter 9

Published in: Technology, Business
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  • 1. Chapter 9 Heat & Heat Technology Temperature Section 1
  • 2. Temperature <ul><li>Measure of the average kinetic energy of the particles in an object </li></ul>
  • 3. Kinetic Energy <ul><li>The particle with the higher amount of kinetic energy will have the higher temperature </li></ul>
  • 4. Thermal Expansion <ul><li>The increase of the volume of a substance due to an increase in temperature </li></ul>
  • 5. Fahrenheit Temperature Scale <ul><li>Water boils 212 – Body Temp 98.6 Room Temp 68 - Water freezes 32 </li></ul>
  • 6. Celsius Temperature Scale <ul><li>Water boils 100 – Body Temp 37 Room Temp 20 - Water freezes 0 </li></ul>
  • 7. Kelvin Scale <ul><li>Water boils @ 373–Body Temp 310 Room Temp 293-Water freezes 273 </li></ul>
  • 8. Absolute Zero <ul><li>The lowest temperature on the Kelvin scale (k) is 0 K </li></ul>
  • 9. Thermal Expansion <ul><li>Segments expand when temperature rises and contracts when the temperature drops </li></ul>
  • 10. Chapter 9 Heat & Heat Technology What is Heat? Section 2
  • 11. Heat <ul><li>Transfer of energy between objects that are different temperatures </li></ul>
  • 12. Thermal Energy <ul><li>The total kinetic energy of the particles that make up a substance </li></ul>
  • 13. Thermal Equilibrium
  • 14. Conduction <ul><li>Transfer of thermal from one substance to another </li></ul>
  • 15. Conductors <ul><li>Substances that conduct thermal energy </li></ul>
  • 16. Insulators <ul><li>Substances that do not conduct thermal energy </li></ul>
  • 17. Convection <ul><li>Transfer of thermal energy by movement of liquid or gas </li></ul>
  • 18. Radiation <ul><li>Transfer of thermal energy through space </li></ul>
  • 19. Greenhouse Effect
  • 20. Specific Heat Capacity <ul><li>Amount of energy need to change the temperature of a substance by 1 degree Celsius </li></ul>
  • 21. Calculating Heat <ul><li>Energy transferred(J) = Specific heat capacity(J/kg X C) X mass (kg) X change in temperature (C) </li></ul><ul><li>J = (j/kg X C)X(kg)X(C) </li></ul>
  • 22. Calories & Kilocalories <ul><li>Kilocalorie (kcal) is equal to 1,000 calories </li></ul><ul><li>Calories (with capital C) is equal to 1,000 calories </li></ul>
  • 23. Chapter 9 Heat & Heat Technology Matter Heat Section 3
  • 24. States of Matter <ul><li>Physical forms in which a substance can exist </li></ul>
  • 25. Particles of Solid <ul><li>Particles do not move fast enough to overcome the strong attraction between them </li></ul>
  • 26. Particles of Liquid <ul><li>Move fast enough to overcome some of the attraction between them </li></ul>
  • 27. Particles of Gas <ul><li>Move fast enough to overcome nearly all of the attraction between them </li></ul>
  • 28. Change of State <ul><li>Conversion of a substance from one physical form to another </li></ul>
  • 29. Changes of State for Water
  • 30. Chemical Changes <ul><li>Changes that occur when one or more substances are changed into entirely new substances </li></ul>
  • 31. Chapter 9 Heat & Heat Technology Heat Technology Section 4
  • 32. Steam Heating System
  • 33. Hot-Water Heating System <ul><li>Water is heated then pumped through pipe work that leads to radiators in each room </li></ul>
  • 34. Warm Air Heating System <ul><li>Air heated in a separate chamber in the furnace. Warm air travels through ducts to different rooms </li></ul>
  • 35. Insulation <ul><li>Substance that reduces the transfer of thermal energy </li></ul>
  • 36. Solar Heating Systems <ul><li>Passive – Do not have moving parts </li></ul><ul><li>Active Solar – Have moving parts </li></ul>
  • 37. Heat Energy <ul><li>A machine that uses heat to do the work </li></ul>
  • 38. External Combustion Engine <ul><li>Simple steam engine </li></ul>
  • 39. Internal Combustion Engine <ul><li>Fuel is burned inside the engine </li></ul>
  • 40. Air Conditioner <ul><li>Transfers thermal energy inside the building or car to an area outside </li></ul>
  • 41. How a Refrigerator Works <ul><li>Compressor </li></ul>
  • 42. How a Refrigerator Works <ul><li>Condenser Coils </li></ul>
  • 43. How a Refrigerator Works <ul><li>Expansion Valve </li></ul>
  • 44. How a Refrigerator Works <ul><li>Evaporating Coils </li></ul>
  • 45. Thermal Pollution <ul><li>Excessive heating of a body of water </li></ul>

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