itialQuestionWindow":[{"id":"735d19fc-2333-4afc-8b6e-5f78b7966beb","revisionId":"b049a840-5af2-47e7-ab08-382de3297378","questionNumber":null,"questionType":"LA","specification":"A student investigates the work done to pull a loaded tray across a laboratory bench through a constant distance.\n\n![A schematic diagram of a plastic tray loaded with stacked masses on a horizontal table. There is a loop at the front of the tray for pulling it horizontally, and the table surface is indicated below the tray.](https://assets.mathsgenie.co.uk/aqa-qb/95268990-164b-4c89-98f3-29a569286ca2.png)\n\nThe table shows the student's measurements:\n\n| Mass (kg) | Work done (J) |\n| :---: | :---: |\n| 0.1 | 1.2 |\n| 0.2 | 1.6 |\n| 0.3 | 2.1 |\n| 0.4 | 2.5 |\n| 0.5 | 2.9 |\n| 0.6 | 3.4 |","difficulty":3,"difficultyBand":"medium","totalMarks":11,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"c4bdafc6-367f-4610-b08d-e106194aca7d","label":"a","content":"Describe how the student can perform this experiment, including any measuring equipment used.","markscheme":"- Use a **Newton meter / force meter** to measure the horizontal pulling force M1\n- Use a **meter ruler / measuring tape** to measure the fixed, predetermined distance moved M1\n- Calculate work done for each trial using the formula $\\text{Work done} = \\text{Force} \\times \\text{Distance}$ B1\n- Repeat the experiment systematically by adding more masses to the tray to obtain a range of results B1","marks":4,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"measure_work_done","label":"Measure force and distance","steps":[{"type":"text","order":1,"title":"Measure the distance","content":"Use a metre ruler or measuring tape to choose and mark a fixed distance on the bench. Pull the tray horizontally from the start mark to the finish mark, and keep this same distance for every trial. This earns **M1**.","highlights":[{"text":"through a constant distance","location":"specification"}]},{"type":"text","order":2,"title":"Measure the pulling force","content":"Attach a **Newton meter** (force meter) to the loop on the tray. Pull it horizontally and read the force shown while the tray is moving across the marked distance. This earns **M1** for measuring the horizontal pulling force.","highlights":[{"text":"pull a loaded tray across a laboratory bench","location":"specification"}]},{"type":"hyper_latex","block":{"nodes":[{"text":"For each mass, multiply the measured horizontal pulling force by the fixed distance moved."},{"latex":"\\text{Work done}=\\text{Force}\\times\\text{Distance}"}]},"order":3,"title":"Calculate the work done","description":"This calculation earns B1."},{"type":"text","order":4,"title":"Repeat with more mass","content":"Add masses to the tray systematically, then repeat the same pull, force measurement and work-done calculation for each total mass. Record the results to obtain a range of masses and work-done values. This earns the final **B1**.","highlights":[{"text":"Mass (kg)","location":"specification"},{"text":"Work done (J)","location":"specification"}]}]}],"generatedAt":"2026-07-22T12:15:26.081Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]},{"id":"56d2554b-c7d7-4901-8475-27a76a055231","label":"b","content":"If this data were plotted on a graph of Work done (y-axis) against Mass (x-axis), describe the pattern of the plotted points and the line of best fit.","markscheme":"- The plotted points show a positive, linear trend lying very close to a straight line B1\n- The line of best fit should be drawn as a straight line with a positive gradient B1","marks":2,"order":1,"markingRubric":null,"explanation":{"methods":[{"id":"read_the_trend","label":"Read the graph trend","steps":[{"type":"graph","order":0,"title":"Plot the measurements","viewport":{"top":4,"left":0,"right":0.7,"bottom":0},"axisLabels":{"x":"Mass (kg)","y":"Work done (J)"},"description":"Each measured pair is a point. The points rise from left to right and lie ver

Work done

Question 11

Work done Questions

Work done

Question 11

Work done Questions