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Level 3 (5–6 marks): compares the force-extension relationship of both objects using correct calculations for both (for example the constant spring constant of the spring AND the changing force $\div$ extension of the rubber band), AND compares the elastic or plastic behaviour of both objects. Level 2 (3–4 marks): describes the relationship of both objects with at least one correct supporting calculation, OR describes one object fully with calculations and its elastic or plastic behaviour. Level 1 (1–2 marks): a basic description, for example 'the spring is linear and the rubber band is not', with no correct calculation. 0 marks: no response or no response worthy of credit. First decide the level from the science content of the whole answer, then decide the mark within the level from how clearly and logically the comparison is communicated an answer with no calculations cannot go above Level 1; an answer that describes only one object cannot go above Level 2 76:["$","$L8f",null,{"bundle":{"topicIds":["a3ae3b3a-506a-56be-bc63-4d51a80e964c","9f4e1632-9aca-4770-a758-f1ff8d04b236","e6c09270-917b-4f9d-a823-3ddec25b745f","ed963ed3-0537-4dc5-a0ce-960d4a2b0957","8d50252a-79a7-4b5a-bbde-036a23483464","fdd413c4-c3b8-4295-80f3-8b2bb42a768f","61dab6af-c3a7-4042-8db2-cd9649ace114","ba7af98b-7221-4c40-a4b9-8775b33af792","05c1caa0-98d2-4881-a9cd-d50a9009ba46","d66c327c-e7a6-42f3-8669-b303de69cafc","a417c67d-88ba-4aac-819f-543bfff6dd5f","5b1f0f2b-14ef-4b99-b385-a84b78314f6c","937352b4-0e3e-464b-8710-eac55bf565de","fafab0d8-636a-46fc-9134-5c0b5f397f24","1f8a3c17-a953-42ff-a9f0-1b03d863d6ca","ae108259-1062-4d3a-805b-8f48728dd2bf"],"paperIds":[],"stageIds":[],"stageTopicIds":[],"stageAssessmentIds":[],"topicNoteIds":["7411227f-2bec-4178-bb6b-0f6652b047ed"]},"children":[["$","$L90",null,{"feature":"question-bank"}],"$L91",["$","$L93",null,{"subjectCode":"gcse_physics__ocr","subjectName":"Physics","topicSlug":"forces-in-action","topicTitle":"2.3 Forces in action","sectionTitle":null,"activity":"worksheet","resourceTitle":"2.3 Forces in action Questions","resourceHref":"/gcse/physics/ocr/forces-in-action/questions/q1","saveTrail":false}],["$","$L95",null,{"href":"/gcse/physics/ocr/forces-in-action/questions/q1","label":"2.3 Forces in action","subjectCode":"gcse_physics__ocr","surface":"questions"}],["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"{\"@context\":\"https://schema.org\",\"@type\":\"LearningResource\",\"name\":\"Question 29 – 2.3 Forces in action - GCSE Physics Questions\",\"description\":\"Practise 2.3 Forces in action GCSE Physics exam-style questions with worked solutions on MathsGenie.\",\"learningResourceType\":\"Practice questions\",\"educationalLevel\":\"GCSE\",\"about\":{\"@type\":\"Thing\",\"name\":\"2.3 Forces in action\"},\"url\":\"https://mathsgenie.co.uk/gcse/physics/ocr/forces-in-action/questions/q29\",\"inLanguage\":\"en-GB\",\"provider\":{\"@id\":\"https://mathsgenie.co.uk/#organization\"}}"}}],["$","div",null,{"className":"min-h-0 w-full flex-1 overflow-hidden bg-background","children":["$","$L97",null,{"backHref":"/gcse/physics/ocr/questions","basePath":"/gcse/physics/ocr/forces-in-action/questions","formulaUrl":"https://www.ocr.org.uk/Images/705129-equation-sheet-physics-a.pdf","initialIndex":28,"initialQuestionWindow":[{"id":"a038f276-fc18-482c-bc75-48c1526bc279","revisionId":"10201425-edfa-49a6-b0fd-80426840b4d9","questionNumber":"14","questionType":"LA","specification":"An astronaut takes an object of mass $2.0\\ \\text{kg}$ from the Earth to the Moon.\n\nThe gravitational field strength on the Earth is $10\\ \\text{N/kg}$. The gravitational field strength on the Moon is $1.6\\ \\text{N/kg}$.","difficultyBand":"hard","tier":"higher","totalMarks":7,"sourceTitle":"2.3 saq","calculatorUse":"unsure","isCalculation":true,"parts":[{"id":"ae3a0726-0755-4204-b42c-363439094059","label":"a","content":"The object is hung from a newton meter on the Earth and then on the Moon.\n\n Calculate the difference between the two readings.","metadata":null,"markscheme":"- weight on the Earth $= 20\\ \\text{N}$ AND weight on the Moon $= 3.2\\ \\text{N}$ 1 mark\n- $16.8$ ($\\text{N}$) 1 mark\n award full marks for a correct answer with no working; ALLOW $17\\ \\text{N}$ ","marks":2,"order":0,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]},{"id":"65eba47b-a6f1-4ee4-aca2-eae0abe7b958","label":"b","content":"A top-pan balance works by measuring the force of the object on its pan. It was set up on the Earth to display the mass in $\\text{kg}$.\n\n The object is placed on this balance on the Moon.\n\n Explain what reading the balance shows.","metadata":null,"markscheme":"- the weight of the object on the Moon is smaller than on the Earth (but its mass is the same) 1 mark\n- the weight on the Moon is $1.6 \\div 10$ OR $0.16$ of its weight on the Earth 1 mark\n- so the balance shows $0.32\\ \\text{kg}$, which is less than the true mass 1 mark\n ALLOW ECF for the reading from an incorrect fraction; 'it shows $2.0\\ \\text{kg}$' scores 0 marks ","marks":3,"order":1,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]},{"id":"935a0fcf-fd39-48fe-b2f7-f15caee8abc0","label":"c","content":"Two students, each of mass $50\\ \\text{kg}$, stand next to each other.\n\n Explain why they do not notice any gravitational attraction between them.","metadata":null,"markscheme":"- each student has a gravitational field OR all matter attracts other matter, so there is a force between them 1 mark\n- but their masses are very small (compared with a planet), so the force is far too small to notice 1 mark\n DO NOT ALLOW 'people do not have a gravitational field' ","marks":2,"order":2,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null,"walkthroughVideo":null},{"id":"10d90b45-688d-442a-82b2-1b284e0acb00","revisionId":"577f5a12-b95a-4df6-9f6d-ead3f267333f","questionNumber":"15","questionType":"MC","specification":"","difficultyBand":"hard","tier":"foundation","totalMarks":1,"sourceTitle":"2.3 mcq","calculatorUse":"unsure","isCalculation":true,"parts":[{"id":"e41cdd2e-1c55-4f56-89fc-64e7906501cb","label":null,"content":"A student uses a spanner to tighten a nut.\n\nThe student applies a force of $20\\ \\text{N}$ at right angles to the spanner, $25\\ \\text{cm}$ from the centre of the nut.\n\nWhat is the moment of the force about the centre of the nut?","metadata":null,"markscheme":null,"marks":1,"order":0,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]}],"options":[{"id":"eb69302a-3ab6-4d1f-94ed-aebfb0cf163c","content":"$$0.80\\ \\text{N m}$","correct":false,"markscheme":null,"order":0,"metadata":null},{"id":"0c1d86cf-6d44-4303-aa95-b99a17a02b91","content":"$$45\\ \\text{N m}$","correct":false,"markscheme":null,"order":1,"metadata":null},{"id":"3aa9920d-a956-45b3-bba3-55d89a494ca3","content":"$$5.0\\ \\text{N m}$","correct":true,"markscheme":null,"order":2,"metadata":null},{"id":"a5f37bbd-69bc-41ca-b039-f43b9567446f","content":"$$500\\ \\text{N m}$","correct":false,"markscheme":null,"order":3,"metadata":null}],"explanation":null,"firstAttemptFullMarks":null,"walkthroughVideo":null},{"id":"44b971ed-306b-4d85-8aa8-47dcb14e3804","revisionId":"e5e8177f-0c6b-4f86-8b3f-29dedcbc0dd4","questionNumber":"15","questionType":"LA","specification":"","difficultyBand":"hard","tier":"higher","totalMarks":6,"sourceTitle":"2.3 saq","calculatorUse":"unsure","isCalculation":false,"parts":[{"id":"fd830937-b900-41f7-910c-28d3c4011bb0","label":null,"content":"A student compares how a spring and a rubber band stretch.\n\nShe applies forces to each object and measures the extension.\n\nThe Table shows her results.\n\nTable\n\n| Force in $\\text{N}$ | $0$ | $1.0$ | $2.0$ | $3.0$ | $4.0$ | $5.0$ |\n| :---: | :---: | :---: | :---: | :---: | :---: | :---: |\n| Extension of spring in $\\text{cm}$ | $0$ | $2.0$ | $4.0$ | $6.0$ | $8.0$ | $10.0$ |\n| Extension of rubber band in $\\text{cm}$ | $0$ | $3.0$ | $7.0$ | $12.0$ | $18.0$ | $25.0$ |\n\nWhen the $5.0\\ \\text{N}$ force is removed, the spring returns to its original length. The rubber band is left with an extension of $0.5\\ \\text{cm}$.\n\nCompare how the spring and the rubber band behave when they are stretched.\n\nUse calculations to support your 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Forces in action","topicId":"a3ae3b3a-506a-56be-bc63-4d51a80e964c","topicSidebar":"$L99","topicSlug":"forces-in-action","topicTitle":"2.3 Forces in action"}]}],"$L9a","$L9b"]}]

2.3 Forces in action

Question 16

2.3 Forces in action Questions

2.3 Forces in action

Question 16

2.3 Forces in action Questions