Physics GCSE
Sonar
What Sonar means in Physics GCSE, as defined for OCR.
Definition of Sonar
Check what you remember
Read the wording for your board, then hide it and explain Sonar in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Relies on strong reflection at the water–seabed interface, with ultrasound pulses reflecting from the seabed and returning to the detector.
Topics that use Sonar
- Wave behaviour (OCR GCSE)
Related terms
- absorption
- ageing
- amplitude
- audible range
- Calculations with powers of ten
- compressions and rarefactions
- Energy transfer by waves
- Evidence from floating objects on water
Using Sonar in the exam
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