AS LEVEL PHYSICS A H156/01 Breadth in Physics Question Paper 1 Oct 2021

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Archimedes’ principle is written below with one word missing. The upthrust acting on an object in a fluid is equal to the __________ of the fluid displaced. What is the missing word? A density B... mass C volume D weight Your answer [1] 2 Which of the following is not a source of electromotive force (e.m.f.)? A chemical cell B light-dependent resistor C power supply D solar cell Your answer [1] 3 A student is explaining the photoelectric effect to his friend. Which statement is correct? A An electron is emitted when the photon energy is greater than the threshold frequency. B Increasing the intensity increases the maximum kinetic energy of the emitted electrons. C Photons are emitted from the metal during the photoelectric effect. D The energy of a photon is proportional to the frequency of the electromagnetic radiation. Your answer [1] 3 © OCR 2021 Turn over 4 The air resistance F acting on an object falling vertically through air is given by the expression F = 0.13 v 2 where v is the speed of the object. The mass of the object is 30 g. What is the terminal velocity of this object? A 0.20 m s−1 B 0.48 m s−1 C 1.5 m s−1 D 2.3 m s−1 Your answer [1] 5 An object is travelling along a horizontal surface with kinetic energy 16 J and speed v. A force acts against the motion of the object. The work done by this force is 4.0 J. What is the final speed of the object in terms of v? A 0.75v B 0.87v C 1.1v D 1.3v Your answer [1] 4 © OCR 2021 6 Four electrical circuits are shown below [Show More]

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