Other questions in this quiz

2. What is the power of a circuit?

  • The amount of useful energy being transferred
  • The rate of energy transfer
  • The amount of photons transferring energy

3. 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

4. how do you find the power of a component in a circuit?

  • measure the voltage and the current and multiply them together
  • divide the voltage by the current

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

  • true
  • false


No comments have yet been made

Similar Science resources:

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