0653.B2.2.01 — State and use the formula: magnification = image size actual size: past paper questions
Real questions on 0653.b2.2.01 — state and use the formula: magnification = image size actual size
The newest 20 of 25 written questions. Open one to see it on the real paper.
- 0653/01 · Specimen 2025 · Q5[1]
What is the magnification of this diagram of a phorid fly?
See it on the paper → - 0653/61 · October/November 2024 · Q1a[3]
In the box, make a large and detailed pencil drawing of the cut surface of the onion.
See it on the paper → - 0653/61 · October/November 2024 · Q1b(i)[1]
Measure the diameter d of the onion in Fig. 1.1. d = mm
See it on the paper → - 0653/61 · October/November 2024 · Q1b(ii)[1]
Add point A and point B to your drawing in (a). Measure the horizontal distance D from point A to point B on your drawing in (a). D = mm
See it on the paper → - 0653/61 · October/November 2024 · Q1b(iii)[1]
Calculate the magnification of your drawing. Use the equation shown. magnification = D d magnification =
See it on the paper → - 0653/63 · October/November 2024 · Q4a(v)[1]
Calculate the scale of the diagram in Fig. 4.3. Use your answer to (a)(iv) and the equation shown. scale = l 60.0 scale =
See it on the paper → - 0653/63 · October/November 2024 · Q4b(i)[1]
Suggest one precaution the student takes to make an accurate measurement of angle α.
See it on the paper → - 0653/63 · October/November 2024 · Q4b(ii)[2]
Values are considered to be equal within the limits of experimental accuracy if they are within 10% of each other. State whether the five values of T in Table 4.2 are equal within the limits of experimental accuracy. Justify your statement with a calculation. statement
See it on the paper → - 0653/63 · October/November 2024 · Q4c(i)[1]
Explain why the student measures the time t for 15 oscillations and then calculates the period T, rather than measuring T directly.
See it on the paper → - 0653/63 · October/November 2024 · Q4c(ii)[1]
Suggest why the student does not choose to measure the time for 150 oscillations.
See it on the paper → - 0653/61 · May/June 2024 · Q1bi[1]
Measure the length of line AB on Fig. 1.5.
See it on the paper → - 0653/61 · May/June 2024 · Q1bii[2]
Calculate the actual diameter of the fruiting body. Use the equation shown. actual diameter = length of line AB magnification Give your answer to one significant figure.
See it on the paper → - 0653/61 · October/November 2023 · Q1b[3]
Fig. 1.4 shows a section through an apple. Fig. 1.4 In the box, make a large clear pencil drawing of the apple section shown in Fig. 1.4.
See it on the paper → - 0653/61 · October/November 2023 · Q1c(i)[1]
Line AB represents the width of the apple cell labelled X. Measure the length of line AB. length of line AB = mm
See it on the paper → - 0653/63 · October/November 2023 · Q4c(ii)[3]
Use the data in Table 4.1 to plot a graph of magnification M (vertical axis) against object distance u.
See it on the paper → - 0653/63 · October/November 2023 · Q4c(iii)[1]
Draw the curve of best fit.
See it on the paper → - 0653/63 · October/November 2023 · Q4c(iv)[1]
Use your graph to determine the value of u when M = 1.0. u = cm
See it on the paper → - 0653/63 · October/November 2023 · Q4c(v)[1]
Calculate the focal length f of the lens. Use your value from (c)(iv) and the equation shown. f = u 2 f = cm
See it on the paper → - 0653/63 · October/November 2023 · Q4d(i)[2]
State two precautions the student must take to obtain a sharp image on the screen.
See it on the paper → - 0653/63 · October/November 2023 · Q4d(ii)[1]
Describe how the student avoids a parallax error (line‑of‑sight error) when measuring object distance u.
See it on the paper →
What examiners said
Many candidates gained all three marks by showing a large clear diagram with the fine details of the features of the apple shown. Some candidates drew very small diagrams; the diagram must fill at least half of the available space. The outline must be clear and continuous; feathered, broken or double lines are not accepted. Scientific diagrams should not be shaded; candidate shading sometimes obsc...
— Examiner report, October/November 2023, 0653/61 Q1(b) (Cambridge)
Almost all candidates correctly measured the width of the apple cell in mm.
— Examiner report, October/November 2023, 0653/61 Q1(c)(i) (Cambridge)
The approach to marking graphs is similar for each examination session. Detailed guidance on how to construct graphs is given in the syllabus. The first mark is awarded for correct labels with units. Best practice is to label axes using the wording from the headings of the relevant columns of the table (in this case ‘object distance / cm’ and ‘magnification’). Not all candidates labelled their ax...
— Examiner report, October/November 2023, 0653/63 Q4(c)(ii) (Cambridge)
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