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No Additional Materials are required.  \nREAD INSTRUCTIONS OVERLEAF  \nDC (LK/TP) 166923/1  \nThe whole of this paper is © UCLES 2018.  \nREAD THESE INSTRUCTIONS FIRST  \nWrite your Centre number, candidate number and name on all the work you hand in.  \nWrite in dark blue or black pen.  \nYou may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. DO NOT WRITE IN ANY BARCODES.  \nSECTION A  \nAnswer ALL questions.  \nWrite your answers in the spaces provided on the Question Paper.  \nSECTION B  \nAnswer any TWO questions.  \nWrite your answers in the spaces provided on the Question Paper.  \nElectronic calculators may be used.  \nYou may lose marks if you do not show your working or if you do not use appropriate units.  \nAt the end of the examination, fasten all your work securely together.  \nThe number of marks is given in brackets [ ] at the end of each question or part question.  \nSECTION A  \nAnswer ALL the questions in this section.  \nAnswer in the spaces provided.  \n1 A student drops a small metal object into a cylinder  \nof oil. The object falls alongside a vertical ruler anda camera records its position at 1.0 s intervals, as shown in Fig. 1.1.  \nposition of object  \nwhen time t = 0  \noil   \nt = 1.0 s  \nt = 2.0 s  \nt = 3.0 s  \nt = 4.0 s  \nt = 5.0 s  \nFIG. 1.1  \n(a) On the grid in Fig. 1.2, plot a distance-time graph for the object.  \ndistance / cm  \n\n| |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |  |  |  |\n\n8  \n7  \n6  \n5  \n4  \n3  \n2  \n1  \n0  \n0 1 2 3 4 5  \ntime / s  \nFIG. 1.2  \n[2]  \n(b) The object has a constant speed for some of the time.  \n(i) State and explain how a distance-time graph shows that speed is constant.  \n_______________________________________  \n_______________________________________  \n  [2]  \n(ii) Explain, in terms of the forces acting on the object, how it is able to fall at a constant speed.  \n_______________________________________  \n_______________________________________  \n_______________________________________  \n  [2]  \nBLANK PAGE  \n2 In an experiment, a student takes measurements and  \ndetermines the extension of a spring for different loads. The apparatus is shown in Fig. 2.1.  \nspring  \nscale  \nload  \nFIG. 2.1  \nThe table in Fig. 2.2 shows the results.  \n\n| load / N | length of spring / mm | extension / mm |\n| --- | --- | --- |\n| 0 | 200 | 0 |\n| 1.0 | 235 | 35 |\n| 2.0 | 270 | 70 |\n| 3.0 | 305 | 105 |\n| 4.0 | 350 |  |\n| 5.0 | 420 |  |\n\nFIG. 2.2  \n(a) Only some of the extensions are shown in the table.  \nComplete the table to show all of the extensions.  \nThere are two spaces to fill. [1]  \n(b) Calculate the load that produces an extension of  \n49 mm.  \nload =   [2]  \n(c) The student pulls a load downwards from position A to position B and holds it fixed at position B, as shown in Fig. 2.3.  \nA  \nB  \nFIG. 2.3","cbCaiqulr4vA4nOV","https://ap.wps.com/l/cbCaiqulr4vA4nOV","pdf",4499619,44,"English","# SECTION A\n## Questions (answer all)\n# SECTION B\n## Questions (answer any two)","[{\"question\":\"What are the requirements for writing on the question paper?\",\"answer\":\"Write the centre number, candidate number and name on all the work handed in, using dark blue or black pen. Use an HB pencil for diagrams or graphs and do not use staples, paper clips, glue or correction fluid. Do not write in any barcodes.\"},{\"question\":\"How many questions must be answered in Section A and Section B?\",\"answer\":\"Section A requires answering all questions. Section B requires answering any two questions.\"},{\"question\":\"What does the question say about speed on a distance-time graph?\",\"answer\":\"It asks how a distance-time graph shows that speed is constant, and it also requires explaining the constant-speed fall in terms of the forces acting on the object.\"}]","5054/22 PHYSICS - Paper 2 Theory - May/June 2018 | PDF",1792721941,111]