2. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version HEAT ENERGY PART 3: RADIATION

3. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version HEAT TRANSFER by RADIATION Objects can transfer thermal energy by infrared radiation. Unlike conduction and convection, no particles are involved in radiation.

4. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Question? Alternative Beta version HEAT TRANSFER by RADIATION The colour/shine of a surface effects how it takes in (absorbs) or gives out (emits) and reflects infra-red heat radiation Matt (dull) and dark surfaces absorb and emit infra-red radiation faster than shiny light surfaces. Good absorberGood reflector Why is the shuttle white on top and black underneath?

5. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version In outer space, heat travels only by radiation, because Convection and conduction exist only on Earth There is no wind in space There is no heat in space Radiation does not need particles

6. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version When grilling cheese on toast, the toast under the cheese make not get cooked because The toast is not hot enough There are no particles between the heat source and the toast The air above the toast is not hot The cheese protects the toast from heat radiation

7. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Which is cooler on a sunny day? Black shirt Green shirt White shirt No shirt

8. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version BONUS ROUND: Pick your lucky colour!

9. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Debate: A roaring log fire warms you by Convection Radiation

10. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Which statement is FALSE? Radiation can occur through nothing Conduction can occur through metals Convection can occur in metals Radiation can occur through air

11. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Radiation, convection or conduction? A hot radiator can warm a whole room due to Radiation Radiation & convection together Radiation & conduction together Convection

12. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version BONUS ROUND: Pick your lucky colour!

13. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Conduction and convection Conduction and radiation Convection and radiation Conduction Radiation, convection or conduction? Heating water in a pan involves

14. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version

15. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Radiation, convection or conduction? In which type(s) of heat process do the particles move? Convection only Convection and radiation Convection and conduction Radiation and conduction

16. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version

17. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version Solar heating panels collect heat from the sun, so they should be White Blue Small Black

18. 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1   Beta version