Energy Transfer

• What is specific heat capacity

  The amount of energy needed to raise the temperature of 1 kg of a substance by 1°C
• What is the unit for change in thermal energy

  Joules (J)
• What piece of equipment would you use to measure change in thermal energy

  Joulemeter
• What piece of equipment would you use to measure mass

  Balances / Scales
• What is the unit for temperature change


  °C
• What piece of equipment would you use to measure temperature change

  Thermometer
• What factors affect the rate of cooling of a building

  The thickness and thermal conductivity of its walls
• What is a conductor


  A process by which energy is transferred through a solid material
• What materials are good conductors

  Metals
• What is an insulator


  Materials that are poor conductors
• What materials are good insulators?

  Non metals and air
• How do insulators reduce unwanted energy loss

  Low thermal conductivity results in less energy transferred through conduction
• What happens to energy that is wasted in a home

  It is dissipated into the environment in the form of thermal energy