Four containers, A, B, C, and D, are filled with the same volume of hot water at the same initial temperature and left in a cool room.
Which container will cool down the fastest?
| Container | Outer surface of the container | Top of the container |
|---|---|---|
| A | shiny silver | covered with a lid |
| B | shiny silver | open (no lid) |
| C | dull black | covered with a lid |
| D | dull black | open (no lid) |
Container A
Container B
Container C
Container D
99 exam-style questions on CIE IGCSE Physics 2.3.3a Thermal radiation. Each one has a worked solution and a mark scheme showing where the marks go.