Other questions in this quiz

2. If something supplies energy it also supplies what?

  • water
  • energy
  • power
  • heat

3. true or false: more efficient machines waste less energy?

  • true
  • false

4. true of false: some energy is always lost?

  • false-it's all converted into different forms
  • true- some is useful energy and the rest is lost energy

5. How would you work out the cost of energy?

  • cost = number of kWh (multiplied by) cost per kWh
  • cost = number of kWh (multiplied by) rate of kWh
  • cost = number of kWh (multiplied by) cost per kW

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Energy and efficiency resources »