se/physics/edexcel/questions","basePath":"/gcse/physics/edexcel/wave-properties-and-behaviour/questions","formulaUrl":null,"initialIndex":92,"initialQuestionWindow":[{"id":"9e69b14e-dbcb-4131-af2e-d61f0845d3f2","revisionId":"f7784bd9-fd6c-42fe-aa82-28fbbcfc5ae7","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"9a97cc0d-865a-4e03-be4a-b408132f93c7","label":null,"content":"The speed of a wave traveling along a stretched spring is $4.8\\text{ m/s}$.\n\nThe frequency of the wave is $1.5\\text{ Hz}$.\n\nCalculate the wavelength of this wave.\n\nUse the equation:\n$$\\text{wave speed} = \\text{frequency} \\times \\text{wavelength}$$","markscheme":"- Rearranges the wave equation and substitutes values to get $\\frac{4.8}{1.5}$ or equivalent rearrangement M1\n- Calculates the correct wavelength to give $3.2\\text{ m}$ A1","marks":2,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"rearrange_wave_equation","label":"Rearrange the wave equation","steps":[{"type":"hyper_latex","block":{"nodes":[{"latex":"\\frac{4.8}{1.5}=3.2"},{"latex":"\\text{wavelength}=3.2\\ \\text{m}"}]},"order":2,"title":"Calculate the wavelength","description":"Evaluate the division and state the wavelength in metres. This correct value earns the accuracy mark (A1)."},{"type":"hyper_latex","block":{"nodes":[{"latex":"\\text{wavelength}=\\frac{\\text{wave speed}}{\\text{frequency}}"},{"latex":"\\text{wavelength}=\\frac{4.8}{1.5}"}]},"order":1,"title":"Rearrange and substitute","description":"Make wavelength the subject, then substitute the values. This earns the rearrangement-and-substitution mark (M1)."}]}],"generatedAt":"2026-07-21T18:04:05.593Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"9e7943cd-f812-4dbd-b3fd-0e998c2b4012","revisionId":"c6961e54-1a1a-4e88-8dc6-c6b4bc462e4a","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":3,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"75de60d6-c585-40b2-8076-20e705ef87dd","label":null,"content":"In a laboratory experiment, a wave generator produces a water wave in a ripple tank. The wave has a wavelength of $0.30\\text{ m}$ and travels with a speed of $1.2\\text{ m/s}$.\n\nCalculate the frequency of the wave.\n\nState the unit of frequency.\n\nUse the equation:\n\n$$v = f \\times \\lambda$$","markscheme":"- Rearranges the formula or substitutes correct values: $1.2 = f \\times 0.30$ or $f = \\frac{1.2}{0.30}$ M1\n- Calculates the frequency value as $4.0$ (or $4$) A1\n- States the unit of frequency as $\\text{Hz}$ (or hertz) B1","marks":3,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"rearrange_formula","label":"Rearrange the wave equation","steps":[{"type":"hyper_latex","block":{"nodes":[{"latex":"v=f\\lambda"},{"latex":"f=\\frac{v}{\\lambda}"}]},"order":0,"title":"Rearrange the equation","description":"Divide both sides by the wavelength to make frequency, f, the subject."},{"type":"hyper_latex","block":{"nodes":[{"latex":"f=\\frac{v}{\\lambda}"},{"latex":"f=\\frac{1.2\\text{ m/s}}{0.30\\text{ m}}"}]},"order":1,"title":"Substitute the values","description":"Put the given speed and wavelength into the rearranged equation. Substituting the given values earns the M1 mark."},{"type":"hyper_latex","block":{"nodes":[{"latex":"f=\\frac{1.2\\text{ m/s}}{0.30\\text{ m}}"},{"latex":"f=4.0"}]},"order":2,"title":"Calculate the frequency","description":"Divide 1.2 by 0.30. This gives the frequency value and earns the A1 mark."},{"type":"text","order":3,"title":"State the unit","content":"$$$f=4.0\\text{ Hz}$$\n\nThe unit **Hz** (hertz) earns the B1 mark."}]}],"generatedAt":"2026-07-22T09:25:23.005Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFul

Wave properties and behaviour

Question 65

Wave properties and behaviour Questions

Wave properties and behaviour

Question 65

Wave properties and behaviour Questions