REVISION
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![Page 1: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/1.jpg)
REVISION
![Page 2: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/2.jpg)
![Page 3: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/3.jpg)
Why is the body of the pan metallic and the handle plastic? (2)
PLASTIC HANDLE
METAL BODY
STEEL
COPPER
![Page 4: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/4.jpg)
How does a light coloured fridge keep the contents cold? (1)
![Page 5: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/5.jpg)
Why is it important that the air is trapped in any type of insulation (1)
![Page 6: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/6.jpg)
Why is the heating element placed at the bottom of a kettle?
(2)
![Page 7: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/7.jpg)
Why are a lot of toasters silver? (1)
![Page 8: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/8.jpg)
How do foam containers keep food warm?. (3)
![Page 9: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/9.jpg)
Explain how cavity wall insulation keeps houses warm (3)
WALLS
CAVITY WALLINSULATION
![Page 10: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/10.jpg)
Why can these people float in the air? (2)
![Page 11: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/11.jpg)
Why is the bottom of the pan made of copper instead of steel?
(1)
PLASTIC HANDLE
METAL BODY
STEEL
COPPER
![Page 12: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/12.jpg)
Why is the back panel of the fridge black? (2)
![Page 13: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/13.jpg)
Complete the table.
INSULATION COSTSAVING /
YEAR
LOFT
PAYBACKTIME
£200 £50 ?
DRAUGHT £20 £40 ?
WALL £400 ? 4 years
![Page 14: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/14.jpg)
How does the heat get through the pan? (3)
![Page 15: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/15.jpg)
The bottom of the pan is hot. How does the heat get to the egg
through the water? (2)
![Page 16: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/16.jpg)
How does a puffa jacket keep you warm? (3)
![Page 17: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/17.jpg)
Why do feet feel warmer on carpets than laminate flooring (3)
![Page 18: REVISION](https://reader030.fdocuments.us/reader030/viewer/2022032612/56812cdd550346895d91a351/html5/thumbnails/18.jpg)
How does a solar cooker work? (1)