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The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-Uand SQA exam specifications.
Gravitational waves are a prediction of Einstein’s general relativity. Accelerating masses produce gravitational waves, just as accelerating electrical charges produce electromagnetic waves. Because gravity is such a weak force compared with electrical forces, gravitational waves are very difficult to detect. The interference of laser light is used to measure the tiny effects of gravitational waves.
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