Why are light gates or video analysis preferred over stopwatches for timing short intervals?
They increase uncertainty caused by human reaction time.
They reduce uncertainty caused by human reaction time.
They measure distance rather than time during short intervals.
They reduce friction caused by air resistance.
Flashcards for OCR GCSE Physics Motion, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier). 2 cards, matched to the OCR GCSE Physics (J249) specification. Recall questions account for roughly 40% of marks at GCSE Physics, so these target the marks you can secure before the paper starts.
