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Heat Transfer

Heat Transfer. List what they have in common. List what they have in common. List what they have in common. Temperature vs. Heat. Temperature - a measure of the amount of kinetic energy in a substance Heat - a transfer of energy between two objects due to a difference in temperature

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Heat Transfer

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  1. Heat Transfer

  2. List what they have in common

  3. List what they have in common

  4. List what they have in common

  5. Temperature vs. Heat • Temperature- a measure of the amount of kinetic energy in a substance • Heat- a transfer of energy between two objects due to a difference in temperature • Heat always moves from hot to cold

  6. 3 Ways Heat can be Transferred • Conduction • Convection • Radiation

  7. Conduction • The transfer of heat (energy) from one substance to another substance that is touching it • It is most effective in solids, but can happen in liquids • Fun fact: Have you ever noticed that metals tend to feel cold? • Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold

  8. Convection • The transfer of heat (energy) by the movement of matter. • Happens mostly in gas and liquids • This happens with currents • Colder matter (more dense) sinks below warmer matter and pushed warmer matter up • Have you ever heard of the saying “warm air rises” • Why does colder matter sink? (hint: use kinetic energy, molecules, and density)

  9. Radiation • Electromagnetic waves directly transport energy through space • Done without the help of fluids or solids • Travel in waves

  10. Electromagnetic Spectrum

  11. A. Convection B. Conduction C. Radiation Why you use a hot pad when touching a metal pot that has been on the stove

  12. A. Convection B. Conduction C. Radiation This causes an entire pot of hot what to boil

  13. A. Convection B. Conduction C. Radiation A rain shadow is a result of this type of heat transfer.

  14. A. Convection B. Conduction C. Radiation The sun heats the surface of the Earth through this

  15. A. Convection B. Conduction C. Radiation Melting ice in your hand

  16. A. Convection B. Conduction C. Radiation A microwave cooks food with this

  17. A. Convection B. Conduction C. Radiation Land and sea breezes are caused by this. (Actually all winds are)

  18. A. Convection B. Conduction C. Radiation X-Rays

  19. A. Convection B. Conduction C. Radiation This is why a metal spoon gets warm when placed in a hot drink

  20. A. Convection B. Conduction C. Radiation This causes condensation on the outside of an ice cold drink

  21. A. Convection B. Conduction C. Radiation Typically, thunderstorms with large cumulonimbus clouds only occur in warmer months. That is because they are formed by….

  22. A. Convection B. Conduction C. Radiation Radio waves are an example of…

  23. A. Convection B. Conduction C. Radiation This causes plate tectonics (movement of plates on Earth’s surface)

  24. A. Convection B. Conduction C. Radiation Your cellphone creates/receives this to communicate to other devices

  25. A. Convection B. Conduction C. Radiation This causes trade winds, westerlies, and easterlies that affect major weather patterns. For example: The ITCZ near the equator most often has clouds and rain. This is also where rainforests are.

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