Replicate the OCR GCSE (9-1) Gateway Science Physics A (J249) exam patterns with evidence-based tips, focusing on avoiding critical units conversions slips, mastering graph skills like drawing tangents, and structure guides for 6-mark Level of Response questions.
読了時間 4 分更新日: 2026年6月21日
試験の概要
試験数
2
満点
180
制限時間
3時間 30分
出題形式
4
試験
時間
配点
問題数
配点比率
出題形式
Higher Tier Paper 3 (Components C1-C3 and C7)
1時間 45分
90
23
50%
Multiple Choice, Short Answer, Calculations, Extended Writing / Level of Response
Higher Tier Paper 4 (Components C4-C6 and C8)
1時間 45分
90
22
50%
Multiple Choice, Short Answer, Calculations, Extended Writing / Level of Response
評価段階
9876543U
電卓の規定
A scientific or graphical calculator that meets JCQ regulations may be used (some GCSE Mathematics and Science papers are non-calculator). Graphical calculators must be set to exam mode; you must clear any stored programs, notes or data before the exam, and the calculator must not be able to retrieve stored text or formulae.
AO1: Demonstrate knowledge and understanding of scientific ideas, techniques, and procedures (40%)
AO2: Apply knowledge and understanding of scientific ideas, enquiry, techniques, and procedures (40%)
AO3: Analyse information and ideas to interpret, evaluate, make judgements, draw conclusions, and improve experimental procedures (20%)
過去問と採点基準にもとづいて作成（2022–2024）。
電卓プログラム
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
目的: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使う場面: Solving or sketching a function when you want to find where its graph crosses or turns.
手順
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
試験での注意: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
目的: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使う場面: Any data-handling, statistics, or required-practical analysis question.
手順
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
試験での注意: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
目的: Keep full-precision intermediate values to avoid rounding errors.
使う場面: Multi-step calculations where premature rounding loses the final accuracy mark.
手順
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
試験での注意: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
目的: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使う場面: As a check only, after solving by hand.
手順
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
試験での注意: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
よくあるミス
1high影響する配点: 3Motion (Forces)
Omitting standard metric conversions (e.g., converting minutes to seconds, or kilometres to metres) before evaluating formulas.
回避方法: Always check and convert units to standard SI values (seconds, metres, kilograms) before substituting them into equations.
2high影響する配点: 2Wave behaviour (Waves in matter)
Drawing 'dot-to-dot' sequences instead of sketching clean, single-ruled lines or smooth curves of best fit.
回避方法: Draw a single, continuous, smooth curve or a straight line using a ruler that balances the points on either side.
3medium影響する配点: 2Simple circuits (Electricity)
Misplacing ammeters in parallel or voltmeters in series, and drawing wires directly crossing out the circular symbols.
回避方法: Always connect ammeters in series and voltmeters in parallel. Ensure your pencil lines do not cross through the inside of the meter circles.
4high影響する配点: 3Motion (Forces)
Failing to explicitly cite coordinate values or data ranges from graphs when answering 6-mark Level of Response trend descriptions.
回避方法: Identify at least two specific coordinates (x, y) on the graph to support your description of any changes in trend.
5medium影響する配点: 2Simple circuits (Electricity)
Inaccurately stating trends on non-linear graphs (saying it is simply a negative correlation without specifying the changing rate).
回避方法: Describe how the rate of change varies. For example, state that 'resistance decreases at a decreasing rate as temperature increases'.
Swapping the physical differences between nuclear fission (splitting) and nuclear fusion (joining) under exam pressure.
回避方法: Remember: Fission is the splitting of a heavy nucleus (like Uranium) when hit by a neutron; Fusion is the joining of light nuclei (like Hydrogen) under high temperature and pressure.
7high影響する配点: 2Wave behaviour (Waves in matter)
Drawing the refracted ray bending away from the normal instead of towards the normal when entering glass.
回避方法: When light enters a more optically dense medium (like glass from air), it slows down and must refract *towards* the normal (angle of refraction < angle of incidence).
8high影響する配点: 4Motion (Forces)
Drawing a chord or secant line that intersects the curve at multiple points instead of grazing the curve at exactly the specified point.
回避方法: Place your ruler so it touches the curve at exactly one point (e.g. t = 1.0 s) with equal space between the ruler and the curve on both sides of the point.
Assuming step-up transformers increase electric power, when they instead raise potential difference to minimize heat losses by lowering current.
回避方法: Recall that conservation of energy applies: power remains constant (neglecting small efficiency losses). Step-up transformers increase voltage, which decreases current to reduce \( I^2 R \) heating losses in transmission lines.
Confusing contamination with irradiation (e.g., thinking that being irradiated makes an object radioactive).
回避方法: State clearly that irradiation is just exposure to radiation from an external source, whereas contamination is the actual presence of radioactive material on the object.