select the correct answer. which activity combines the use of conduction and convection to transfer heat? a…

select the correct answer. which activity combines the use of conduction and convection to transfer heat? a. wrapping yourself in a thick, soft blanket b. lighting a bonfire on a cold night to keep warm c. blow drying your hair with an electric hair dryer d. boiling water in a metal pot on a stove e. drying damp clothes in the sunlight

select the correct answer. which activity combines the use of conduction and convection to transfer heat? a. wrapping yourself in a thick, soft blanket b. lighting a bonfire on a cold night to keep warm c. blow drying your hair with an electric hair dryer d. boiling water in a metal pot on a stove e. drying damp clothes in the sunlight

Answer

Explanation:

Step1: Analyze option A

Wrapping in a blanket is mainly insulation, not conduction - convection heat transfer.

Step2: Analyze option B

Bonfire is mainly radiation for heat transfer to keep warm, not a combination of conduction and convection.

Step3: Analyze option C

Hair - dryer mainly uses forced convection, with less conduction involved.

Step4: Analyze option D

When boiling water in a metal pot on a stove, heat is first transferred from the stove to the pot by conduction (metal is a good conductor). Then, the heated water near the bottom of the pot rises and cooler water sinks, which is convection. This is a combination of conduction and convection.

Step5: Analyze option E

Drying clothes in sunlight is mainly radiation heat transfer.

Answer:

D. boiling water in a metal pot on a stove