1) Which mode of heat transfer explains why your car can be even hotter than the

Question

1)  Which mode of heat transfer explains why your car can be even hotter than the outside temperature on a bright sunny day?

convection

conduction

radiation

2)  Which mode of heat transfer explains why heating vents are best placed near the floor?

convection

conduction

radiation

3)  Which mode of heat transfer explains why a metal spoon feels hot after sitting in boiling water?

convection

conduction

radiation

4)  A steel pot has a bottom with a cross sectional area of .1m2 and has a thickness of 1cm. The pot is filled with boiling water and the bottom of the pot is held at 200 degrees Celsius. The thermal conductivity of steel is 14 J/s m Co. How much heat is being conducted through the pot in one minute

Q = 1.4x105 J

Q = 4.5x105 J

Q = 8.4x105 J

Q = 9.6x105 J

Explanation / Answer

1) radiation

2) convection

3) conduction

4) 1.4*105J

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