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Published byDeshawn Cowey
Modified over 4 years ago
Why is the body of the pan metallic and the handle plastic? (2)
How does a light coloured fridge keep heat from entering it? (1)
Why is it important that the air is trapped in any type of insulation (1)
Why is the heating element placed at the bottom of a kettle? (2)
Why are a lot of toasters silver? (1)
How do foam containers keep food warm?.(3)
Explain how cavity wall insulation keeps houses warm (3)
Why can these people float in the air? (2)
Why is the bottom of the pan made of copper instead of steel? (1)
Why is the back panel of the fridge black? (2)
A copper pan has a specific heat capacity of 400KJ/ kg o C. If its mass is 0.5kg how much heat is required to increase its temp by 5 degrees? Explain how you work it out. (1)
Complete the table.
How does the heat get through the pan? (3)
How does the heat get from the bottom of the pan to the egg? (2)
100g of ice is put in a 200g glass of water. If the specific latent heat of water is 4200 J/g how much energy is required to heat the ice? Explain how you work it out. (1)
How does a puffa jacket keep you warm? (3)
Why do feet feel warmer on carpets than laminate flooring (3)
How does a solar cooker work? (1)
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REVISION Why is the body of the pan metallic and the handle plastic? (2)
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