Heat

• Heat and temperature

  • Heat is a form of energy but temperature is the measurement of how hot or cold an object is
• Heat

  • Cannot be seen
  • Can be felt
  • Form of energy
  • Changes temperature of an object
• Temperature

  • Not a form of energy
  • Measurement of how hot or cold an object is
• Sources of heat

  • Electricity
  • Fuels
  • Sun
• Good conductors of heat

  • Allow heat to flow through them quickly
• Good conductors of heat


  • Metals (gold, copper and aluminium)
• Poor conductors of heat


  • Do not allow heat to flow through them quickly
• Poor conductors of heat


  • Air, glass, rubber
• When an object gains heat


  It expands
• When an object loses heat

  It contracts