Review of test

Corrections:

1. Explain how an extra blanket blanket on your bed reduces the heat transfer from your body to your bedroom: Traps air, reduces conduction, blanket insulator

2. A disadvantage of burning wood instead of coal in a power station is that alot of land is lost, animals lose their habitat

3. three non-renewable sources that are used to produce electricity in power stations are nuclear, oil, and natural gas

4. a device that turns sound energy to electrical energy is a microphone

5. TOTAL energy at the start is equal to the TOTAL energy at the end

6. Force is measured in newtons
7. when cycling some energy is transferred to heat in the body and friction