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Do not write in the barcodes. |  |  |  |\n| --- | --- | --- | --- |\n| Centre number |  | Candidate number |  |\n| First name(s)  \u003Cbr>Last name   |  |  |  |\n\nINSTRUCTIONS  \n• Use black ink. You can use an HB pencil, but only for graphs and diagrams.  \n• Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown.  \n• Answer all the questions.  \n• Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong.  \nINFORMATION  \n• The total mark for this paper is 90.  \n• The marks for each question are shown in brackets [ ] .  \n• Quality of extended response will be assessed in questions marked with an asterisk (*) .  \n• This document has 32 pages.  \nADVICE  \n• Read each question carefully before you start your answer.  \n© OCR 2024 [601/8651/3] DC (SL/CGW) 342896/6  \nOCR is an exempt Charity  \nTurn over  \n2  \nSection A  \nYou should spend a maximum of 30 minutes on this section.  \nWrite your answer to each question in the box provided.  \n1 A force of 1200 N moves an object a distance of 16 m.  \nWhat is the work done on the object?  \nUse the equation: work done = force × distance  \nA 75 J  \nB 9600 J  \nC 19 200J  \nD 153 600J  \nYour answer  [1]  \n2 Which row describes the potential difference for a washing machine and for a battery-operated torch?  \n\n|  | Washing machine | Torch |\n| --- | --- | --- |\n| A | 6 Va.c. | 6 Va.c. |\n| B | 6 Vd.c. | 230 Vd.c. |\n| C | 230 Va.c. | 230 Vd.c. |\n| D | 230 Va.c. | 6 Vd.c. |\n\nYour answer  \n[1]  \n3 Which factor will increase the braking distance of a car travelling on a road? A Drinking alcohol  \nB Driving when tired  \nC More people in the car  \nD Using new brake pads  \nYour answer  \n[1]  \n3  \n4 Which electromagnetic waves can cause cancer and help treat cancer?  \nA Gamma rays and X-rays  \nB Infrared and X-rays  \nC Microwaves and infrared  \nD Radio waves and gamma rays  \nYour answer  [1]  \n5 A student drops a ruler and a friend catches it.  \nThe reaction time of the friend is calculated from the distance the ruler has fallen. The experiment is repeated.  \nWhat does the student do to determine an accurate value for the reaction time?  \nA Check the reaction time with a stopwatch  \nB Drop the ruler at random times  \nC Drop the ruler from different heights above the friend’s hand  \nD Tell the friend when the ruler will be dropped  \nYour answer  \n[1]  \n© OCR 2024 Turn over  \n4  \n6 What causes the hearing range of humans to decrease as they age?  \nA Lower frequencies cannot be heard.  \nB The eardrum vibrates more quickly.  \nC The pinna gets smaller.  \nD The shorter hairs in the cochlea stop working first.  \nYour answer  [1]  \n7 A motorcyclist has a mass of 80 kg and rides his motorcycle at 25 m / s.  \nThe motorcycle has a mass of 160 kg.  \nWhat is the total kinetic energy of the motorcyclist and motorcycle? Use the equation: kinetic energy = 12 × mass × (speed)2  \nA 3000 J  \nB 25 000J  \nC 75 000J  \nD 150 000J  \nYour answer  [1]  \n8 A radio wave has a frequency of 88 MHz.  \nWhat is 88 MHz converted to kHz?  \nA 0.088 kHz  \nB 88 000kHz  \nC 88 000 000kHz  \nD 88 000 000 000kHz  \nYour answer  [1]  \n5  \n9 The diagram shows a patient having an ultrasound scan.  \nBone  \nSoft tissue  \nThe speed of ultrasound in soft tissue is 1500 m / s.  \nThe echo from the boundary between the soft tissue and the bone is received 2.0 × 10–5s after the ultrasound is emitted.  \nWhat is the thickness of the soft tissue?  \nIgnore the thickness of the gel.  \nUse the equation: distance travelled = speed × time  \nA 0.015 m  \nB 0.030 m  \nC 0.060 m  \nD 0.075 m  \nYour answer  [1]  \n10 Which answer shows 800 km / h converted into m / s?  \nA 0.22 m / s  \nB 13.3 m / s ","cbCaiafRour9wrDw","https://ap.wps.com/l/cbCaiafRour9wrDw","pdf",6150373,32,"English","# Section A\n## Questions 1-14","[{\"question\":\"What should students use when writing their answers?\",\"answer\":\"Students should write in black ink; an HB pencil may be used only for graphs and diagrams, and answers must be placed clearly in the space provided for each question.\"}]","Oxford Cambridge and RSA - Friday 14 June 2024 - Afternoon GCSE (9–1) Physics A (Gateway Science) J249/04 (Higher Tier) Question Paper - Section A | PDF",81]