[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207884-en":3,"doc-seo-207884-105":29,"detail-sidebar-cat-0-en-105":89},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":4,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":11,"language":21,"language_code":22,"site_id":23,"html_lang":22,"table_of_contents":24,"faqs":25,"seo_title":26,"seo_description":14,"update_tm":27,"read_time":28},207884,2336475104736,"วิน","https://ap-avatar.wpscdn.com/avatar/22000c4c5e0e5b17e70?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786591360781797222",4,"Exam","Higher - Question 5 - AQA Combined Science June 2023","Question 5 focuses on a spring-launch toy, requiring explanation of experimental measurement effects and calculations based on gravitational potential energy. Students describe how observing from position B rather than A changes the measured maximum height, linking the difference to parallax error reduction. They then calculate the toy’s mass using given maximum height and energy values, with answers reported to 2 significant figures. Finally, they explain why the toy system is not closed when air temperature increases during launch.","0  5  Figure 10 shows a child’s toy.  \nA child pushes down on the toy to compress the spring. The spring then launches the toy into the air.  \nFigure 10  \noutside the box  \n0  5  .  1  A student measured the maximum height reached by the toy.  \nThe student placed a vertical metre rule near the toy, and observed the height reached by the toy.  \nThe student repeated the experiment, observing from a different position.  \nFigure 11 shows the toy at its maximum height and the two positions of the student.  \nFigure 11  \nObserving the toy from position B instead of position A affected the measurement of the maximum height reached by the toy.  \nExplain how.  \n[2 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n\nQuestion 5 continues on the next page  \nbox  \n\n|  |  |  |  |  | The greatest height reached by the toy was 64 cm. | outside box |\n| --- | --- | --- | --- | --- | --- | --- |\n|  | 0 | 5 | . | 2 |  |  |\n| The gravitational potential energy of the toy at this height was 0.049 J. gravitational field strength = 9.8 N/kg\u003Cbr>Calculate the mass of the toy.\u003Cbr>Use the Physics Equations Sheet.\u003Cbr>Give your answer to 2 significant figures.\u003Cbr>[5 marks]\u003Cbr>\u003Cbr>Mass of toy (2 significant figures) =   kg |  |  |  |  |  |  |\n|  | 0 | 5 | . | 3 | When the spring launches the toy into the air, the temperature of the air increases.\u003Cbr>Explain why the child’s toy on its own is not a closed system.\u003Cbr>[2 marks]\u003Cbr> |  |\n|  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |\n|  |  |  |  |  |  | 9 |\n|  |  |  |  |  |  |  |\n\nthe  \nQuestion 5  \n\n| Question | Answers | Extra information | Mark | AO /\u003Cbr>Spec. Ref. |\n| --- | --- | --- | --- | --- |\n| 05.1 | the measurement will be more accurate\u003Cbr>because (in position B) the eye is level with (the maximum height of) the toy | allow parallax error is reduced | 1\u003Cbr>1 | AO3\u003Cbr>AO1\u003Cbr>6.1.1.2 |\n\n\n| Question | Answers | Extra information | Mark | AO /\u003Cbr>Spec. Ref. |\n| --- | --- | --- | --- | --- |\n| 05.2 | 64 cm = 0.64 m\u003Cbr>0.049 = m × 9.8 × 0.64\u003Cbr>m = 9.08.40964\u003Cbr>m = 0.0078125 (kg)\u003Cbr>m = 0.0078 (kg) | allow a correct substitution using an incorrectly / not converted height\u003Cbr>allow a correct rearrangement using their incorrectly / not converted height\u003Cbr>allow an answer consistent with their incorrectly / not converted height\u003Cbr>this mark can only be scored if the equation Ep = m g h has been used | 1\u003Cbr>1\u003Cbr>1\u003Cbr>1\u003Cbr>1 | AO2\u003Cbr>6.1.1.2 |\n\n\n| Question | Answers | Extra information | Mark | AO /\u003Cbr>Spec. Ref. |\n| --- | --- | --- | --- | --- |\n| 05.3 | energy from the toy is dissipated (to the surroundings / air)\u003Cbr>(but) in a closed system the total energy remains constant | allow energy from the toy is transferred to the surroundings / air | 1\u003Cbr>1 | AO1\u003Cbr>6.1.2.1\u003Cbr>6.1.1.1 |\n\n\n| Total Question 5 | 9 |\n| --- | --- |","cbCaioi6ldZDWcPV","https://ap.wps.com/l/cbCaioi6ldZDWcPV","pdf",775542,1,"English","en",105,"# Question 5\n## Measurement accuracy and parallax\n## Calculating mass from gravitational potential energy\n## Closed system explanation","[{\"question\":\"How does observing the toy from position B instead of position A affect the measurement of maximum height?\",\"answer\":\"It makes the measurement more accurate because the eye is level with the maximum height of the toy, reducing parallax error.\"},{\"question\":\"How is the mass of the toy calculated in Question 5.2?\",\"answer\":\"Use Ep = mgh with the given gravitational potential energy and height (converted to metres), then solve for m and give the result to 2 significant figures.\"},{\"question\":\"Why is the toy on its own not a closed system when the spring launches it?\",\"answer\":\"Energy from the toy is dissipated to the surroundings/air, so the total energy of the toy alone is not constant.\"}]","Higher - 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