A rubber component is suspended beneath infrared heaters before it is tested. Ignore energy transfers other than by infrared radiation. The heater setting remains constant.
The table shows the rates at which the component absorbs and emits infrared radiation.
| Time in minutes | Rate of absorption in joules per second | Rate of emission in joules per second |
|---|---|---|
| 0 | 64 | 28 |
| 6 | 64 | 64 |
Explain the change in the rate at which the component emits infrared radiation during the first 6 minutes. Predict what happens to the component's temperature after 6 minutes.
106 exam-style questions on AQA GCSE Physics 6.3 Black body radiation, covering 6.3.1 Emission and absorption of infrared radiation and 6.3.2 Perfect black bodies and radiation. Each one has a worked solution and a mark scheme showing where the marks go.