Question

The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat travels through atmosphere to the top of the seat Step 3: Heat from the top of the seat travels through the seat to the lower parts of the seat Which statement is correct? A. Heat is transferred by radiation in Step 1 and Step 3. B. Heat is transferred by radiation in Step 1 and Step 2.C. Heat is transferred by convection in Step 1 and Step 2. D. Heat is transferred by convection in Step 1 and Step 3.

Answer 1

Answer:

B. Heat is transferred by radiation

Answer 2

The steps in the heating of a metal seat in a park are:

Step 1: Heat travels from the sun to Earth

Step 2: Heat travels through atmosphere to the top of the seat

Step 3: Heat from the top of the seat travels through the seat to the lower parts of the seat.

-- Heat is transferred by radiation in Step 1 and Step 2. (B)

-- From the top of the seat to the bottom, heat is transferred by conduction.  

There's no convection happening anywhere in the park-hot-seat scenario.