Other questions in this quiz

2. which statement about evaporation is not true

  • sweating cools us down when the sweat evaporates
  • evaporation can happen at any temperature at which the substance is a liquid
  • when some of a liquid evaporates the liquid left is warmer than before
  • when some of a liquid evaporates, it is the particles moving the fastest that escape and form a gas

3. which statement is the best explanation for why many insulating materials contain trapped air

  • air is a poor conductor
  • trapped air makes the material lighter
  • gases are poor conductors and they cannot transfer energy by convection if they cannot move
  • trapping the air stops energy being transferred by convection

4. solids are better heat conductors than liquids or gases because

  • the particles are closer together in liquids
  • the particles in a solid cannot move
  • the particles are closer together in solids
  • the particles are closer together in gases

5. why does cold air near an ice lolly move downward

  • it is colder and denser than the air further away from it
  • it is warmer and denser than the air further away from it
  • it is colder and less dense than the air further away from it
  • it is warmer and less dense than the air further away from it

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