Physics A H156: Work, energy and power Topical Past Paper Questions
OCR AS Physics A (H156) past-paper questions on Work, energy and power, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A battery of electromotive force (e.m.f.) $ \varepsilon $ and internal resistance r is connected to five identical wire wound resistors in a circuit. Each resistor between points P and Q has a resistance of $ 300\Omega $. Two of the resistors are labelled X and Y as shown. The ta…
(a) Two identical springs each have a force constant of $ 36 N m^{-1} $. In an experiment, the two springs are suspended from a fixed support as shown in Fig. 4.1. Fig. 4.1 The initial length of the spring arrangement is $ L_{0} $. An object of mass M is added to the spring arran…
Four electrical circuits are shown below. All the resistors are identical. Each circuit is connected to the same power supply. Which circuit dissipates the least power?
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