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A thin straight metal strip rests on two supports. A weight W hangs at its centre and the strip bends through angle θ, as shown in Fig. 4.1. Plan an experiment to investigate one variable affecting bend angle θ in Fig. 4.1. Explain the procedure and θ measurement; identify controls; draw a results table with headings and units (no readings); explain how to reach a conclusion. You may include a labelled diagram.
A thin straight metal strip rests on two supports. A weight W hangs at its centre and the strip bends through angle θ, as shown in Fig. 4.1.
Plan an experiment to investigate one variable affecting bend angle θ in Fig. 4.1. Explain the procedure and θ measurement; identify controls; draw a results table with headings and units (no readings); explain how to reach a conclusion. You may include a labelled diagram.