Formulate and justify a research question about one factor that may affect pendulum period, then outline a method capable of answering it.

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For example: How does pendulum length affect period for small angles? Vary measured length, time many oscillations, control mass and angle, repeat and graph T² against L. State a focused question naming independent and dependent variables and a measurable range. Give a physics-based hypothesis such as T increases with square root of L. Measure length from pivot to bob centre, use small constant release angle and time many cycles. Repeat, calculate mean T, graph an appropriate transformation and evaluate uncertainty.

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Formulate and justify a research question about one factor that may affect pendulum period, then outline a method capable of answering it.

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