Exercise 3.2: Heating Technology

Click this link to watch a video about microwaves.

1. How does a microwave work?

2. Which type(s) of heating does a microwave use: convection, conduction, radiation?

Click this link to watch a video about thermostats.

3. What is a bimetallic strip?

4. Why does heating a bimetallic strip cause it to bend?

5. How does a thermostat work?

Click this link to watch a video about hot water heaters.

6. What is the heat source in a hot water heater?

7. What makes a hot water heater a good heat conductor?

8. What makes a hot water heater a good heat insulator?