A mass of different weight is hung from each spring and the extensions are measured. Which circuit dissipates the least power? Your answer 7 A student investigated four different springs A, B, C and D. Each circuit is connected to the same power supply.
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 6 Four electrical circuits are shown below. A force acts against the motion of the object. 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 5 An object is travelling along a horizontal surface with kinetic energy 16 J and speed v. Your answer 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. D The energy of a photon is proportional to the frequency of the electromagnetic radiation. C Photons are emitted from the metal during the photoelectric effect. B Increasing the intensity increases the maximum kinetic energy of the emitted electrons. Which statement is correct? A An electron is emitted when the photon energy is greater than the threshold frequency. What is the missing word? A density B mass C volume D weight Your answer 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 3 A student is explaining the photoelectric effect to his friend. The upthrust acting on an object in a fluid is equal to the of the fluid displaced. 1 Archimedes’ principle is written below with one word missing. Write your answer to each question in the box provided. Turn over SECTION A You should spend a maximum of 25 minutes on this section. Read each question carefully before you start your answer.The marks for each question are shown in brackets.Marks might be given for using a correct method, even if your answer is wrong. Where appropriate, your answer should be supported with working.The question numbers must be clearly shown. If you need extra space use the lined pages at the end of this booklet. Write your answer to each question in the space provided.You can use an H B pencil, but only for graphs and diagrams. October 2021 AS Level Physics A H156/01 Breadth in physics Time allowed: 1 hour 30 minutes * H 1 5 6 0 1 * INSTRUCTIONS Interchange October 2021 AS Level Physics/ H156/01 Breadth in physics/Top score Document Content and Description Below
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