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6. Why are saucepans often made of metal with wooden handles ?

  • Metal is a bad conductor of heat so less likely to burn yourself
  • Metal is a good conduction of heat so can heat up the food quickly & the wooden handle is a poor conductor of heat so you don't burn yourself
  • The metal is a good conductor of heat and so is wood so it cooks your food quicker

7. How does the temperature of an object affect the rate at which it emits infared radiation ?

  • The higher the temperature the greater it emits infared.
  • The Lower the temperature the greater it emits infared.

8. Why are houses in hot countries often painted white ?

  • They reflect heat and sun
  • They absorb heat and sun
  • It makes them look pretty