A source sends a pulse through a sealed chamber containing air. The pulse travels from the source to an absorber.
| Measurement | Result |
|---|---|
| Direction in which the pulse travels | horizontal |
| Direction of the oscillations | vertical |
| Energy absorbed by the absorber | 2.4 J |
| Material arriving at the absorber | none detected |
Explain why the measurements are consistent with the pulse being an electromagnetic wave.
The air is removed from the chamber to produce a vacuum. Predict whether the pulse will still be able to transfer energy to the absorber. Explain your answer.
93 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.