Geophysicists analyze seismic waves to map the deep structure of the Earth's crust. Which row in the table correctly describes the wave classification and the speed of secondary seismic waves (SSS-waves) propagating through a uniform, isotropic bedrock layer at a constant temperature and pressure?
| Wave classification | Wave speed as frequency changes | |
|---|---|---|
| A | Transverse | Remains constant |
| B | Transverse | Changes |
| C | Longitudinal | Remains constant |
| D | Longitudinal | Changes |
Transverse and remains constant
Transverse and changes
Longitudinal and remains constant
Longitudinal and changes
43 exam-style questions on OCR GCSE Physics Wave behaviour. Each one has a worked solution and a mark scheme showing where the marks go.