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Heat & heat transfer

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  • Conduction, Convection or Radiation: Hot air rises, cold air sinks
    Convection
  • Conduction, Convection or Radiation?
  • Why the feathers help the bird keep warm?
  • There are two block. Block A is hotter than block B. What happen to the temperature of block B?
    Its temperature increases
  • Conduction, Convection or Radiation: Boiling water
    Convection
  • Which hand feel warmer?
    Hand B
  • Which heat transfer process make the water warm?
    Convection
  • Conduction, Convection or Radiation: Particles vibrate to transfer heat
    Conduction
  • True or False: Heat is different from temperature
    True
  • Conduction, Convection or Radiation: The Sun heat the Earth
    Radiation
  • Conduction, Convection or Radiation: Frying egg
    Conduction
  • True or False: Heat always transfer from colder to hotter objects
    False
  • Conduction, Convection or Radiation: Happen only in liquids and gases
    Convection
  • Conduction, Convection or Radiation: Melting metal
    Conduction
  • Conduction, Convection or Radiation: Transfer heat without particles
    Radiation
  • True or False: Themarl energy is measured in degree Celcius
    False
  • What will happens to the pin? Explain your answer.
  • Conduction, Convection or Radiation: Touching a hot pan
    Conduction
  • State one different between temperature and thermal energy
  • There are two blocks. Block A is hotter than block B. After touching for a few minutes, what happened to the temperature of the two blocks?
    Equal
  • What happens to the biscuits?
    They move far apart
  • True or False: Metal are heat insulators
    False
  • True or False: The wet clothes will dry faster if the weather is warm
    True
  • True or False: Evaporation happens at any temperature
    True
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