Chapter 9 Heat & Heat Technology Temperature Section 1
Temperature <ul><li>Measure of the average kinetic energy of the particles in an object </li></ul>
Kinetic Energy <ul><li>The particle with the higher amount of kinetic energy will have the higher temperature </li></ul>
Thermal Expansion <ul><li>The increase of the volume of a substance due to an increase in temperature </li></ul>
Fahrenheit  Temperature Scale <ul><li>Water boils 212 – Body Temp 98.6 Room Temp 68 - Water freezes 32 </li></ul>
Celsius Temperature Scale <ul><li>Water boils 100 – Body Temp 37 Room Temp 20 - Water freezes 0 </li></ul>
Kelvin Scale <ul><li>Water boils @ 373–Body Temp 310 Room Temp 293-Water freezes 273 </li></ul>
Absolute Zero <ul><li>The lowest temperature on the Kelvin scale (k) is 0 K </li></ul>
Thermal Expansion <ul><li>Segments expand when temperature rises and contracts when the temperature drops </li></ul>
Chapter 9 Heat & Heat Technology What is Heat? Section 2
Heat <ul><li>Transfer of energy between objects that are different temperatures </li></ul>
Thermal Energy <ul><li>The total kinetic energy of the particles that make up a substance </li></ul>
Thermal Equilibrium
Conduction <ul><li>Transfer of thermal from one substance to another </li></ul>
Conductors <ul><li>Substances that conduct thermal energy </li></ul>
Insulators <ul><li>Substances that do not conduct thermal energy </li></ul>
Convection <ul><li>Transfer of thermal energy by movement of liquid or gas </li></ul>
Radiation <ul><li>Transfer of thermal energy through space </li></ul>
Greenhouse Effect
Specific Heat Capacity <ul><li>Amount of energy need to change the temperature of a substance by 1 degree Celsius </li></ul>
Calculating Heat <ul><li>Energy transferred(J) = Specific heat capacity(J/kg X C) X mass (kg) X change in temperature (C) ...
Calories & Kilocalories <ul><li>Kilocalorie (kcal) is equal to 1,000 calories </li></ul><ul><li>Calories (with capital C) ...
Chapter 9 Heat & Heat Technology Matter Heat Section 3
States of Matter <ul><li>Physical forms in which a substance can exist </li></ul>
Particles of Solid <ul><li>Particles do not move fast enough to overcome the strong attraction between them </li></ul>
Particles of Liquid <ul><li>Move fast enough to overcome some of the attraction between them </li></ul>
Particles of Gas <ul><li>Move fast enough to overcome nearly all of the attraction between them </li></ul>
Change of State <ul><li>Conversion of a substance from one physical form to another </li></ul>
Changes of State for Water
Chemical Changes <ul><li>Changes that occur when one or more substances are changed into entirely new substances </li></ul>
Chapter 9 Heat & Heat Technology Heat Technology Section 4
Steam Heating System
Hot-Water Heating System <ul><li>Water is heated then pumped through pipe work that leads to radiators in each room </li><...
Warm Air Heating System <ul><li>Air heated in a separate chamber in the furnace. Warm air travels through ducts to differe...
Insulation <ul><li>Substance that reduces the transfer of thermal energy </li></ul>
Solar Heating Systems <ul><li>Passive – Do not have moving parts </li></ul><ul><li>Active Solar – Have moving parts </li><...
Heat Energy <ul><li>A machine that uses heat to do the work </li></ul>
External Combustion Engine <ul><li>Simple steam engine </li></ul>
Internal Combustion Engine <ul><li>Fuel is burned inside the engine </li></ul>
Air Conditioner <ul><li>Transfers thermal energy inside the building or car to an area outside </li></ul>
How a Refrigerator Works <ul><li>Compressor </li></ul>
How a Refrigerator Works <ul><li>Condenser Coils </li></ul>
How a Refrigerator Works <ul><li>Expansion Valve </li></ul>
How a Refrigerator Works <ul><li>Evaporating Coils </li></ul>
Thermal Pollution <ul><li>Excessive heating of a body of water </li></ul>
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OLM Science6_9

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Transcript of "OLM Science6_9"

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

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