An evidence-based masterclass for Pearson Edexcel A Level Physics (9PH0). This guide highlights high-yield exam-day strategies, rigorous analysis of the 2024 past papers, systematic methods to master practical uncertainty propagation, and common structural traps highlighted in examiner reports.
อ่าน 4 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
3
คะแนนเต็ม
300
เวลาสอบ
6ชม.
ประเภทคำถาม
5
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
Paper 1: Advanced Physics I (9PH0/01)
1ชม. 45นาที
90
18
35%
Multiple Choice, Structured/Written
Paper 2: Advanced Physics II (9PH0/02)
1ชม. 45นาที
90
19
35%
Multiple Choice, Structured/Written
Paper 3: General and Practical Principles (9PH0/03)
2ชม. 30นาที
120
12
30%
Structured/Practical
เกณฑ์เกรด
A*ABCDEU
ข้อกำหนดเครื่องคิดเลข
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: AO1: Demonstrate knowledge and understanding of scientific ideas, processes, techniques and procedures (30%)
AO2: AO2: Apply knowledge and understanding of scientific ideas, processes, techniques and procedures (40%)
AO3: AO3: Analyse, interpret and evaluate scientific information, ideas and evidence, including in relation to issues, to make judgements and reach conclusions and develop and refine practical design and procedures (30%)
วัตถุประสงค์: Plot a function to read its roots (zeros), points of intersection, and maxima/minima.
ใช้เมื่อใด: Checking solutions, sketching, or solving where an analytic method is hard.
ขั้นตอน
Graph the function(s) and use the built-in zero, intersect and maximum/minimum tools.
ข้อควรระวังในการสอบ: 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.
Numerical equation solver
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: Solve an equation or find a variable numerically when an algebraic route is long or implicit.
ใช้เมื่อใด: Iterative or implicit equations, or to confirm an algebraic solution.
ขั้นตอน
Use the equation/zero solver, entering the equation and a sensible starting estimate.
ข้อควรระวังในการสอบ: 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.
Numerical integration & differentiation
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: Evaluate a definite integral \(\int_a^b f(x)\,dx\) or a gradient \(f'(x)\) at a point.
ใช้เมื่อใด: Checking calculus answers, or where only a numerical value is needed.
ขั้นตอน
Use the GDC's numeric integral / derivative function with the limits or the point.
ข้อควรระวังในการสอบ: 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 & probability distributions
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: 1-var/2-var statistics, linear regression, and cumulative binomial / normal / Poisson probabilities without tables.
ใช้เมื่อใด: Statistics questions and hypothesis tests.
ขั้นตอน
Enter data in the statistics editor, or use the distribution menu (binomial cdf, normal cdf, …).
ข้อควรระวังในการสอบ: 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.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 2Working as a Physicist (Concept-led approach)
Failing to double the percentage uncertainty of a diameter/radius when propagating it into circular cross-sectional areas or spherical volumes.
วิธีหลีกเลี่ยง: Since area \(A = \frac{\pi d^2}{4}\), the percentage uncertainty in area is equal to \(2 \times \%\Delta d\). Always multiply the diameter's percentage uncertainty by 2 before adding it to other uncertainties.
Failing to write down cell references when explaining spreadsheet models (e.g. capacitor discharge columns).
วิธีหลีกเลี่ยง: Write down the exact cell math (such as G11 = F11/B11) rather than raw numerical values or general labels like 'charge divided by resistance'.
Failing to convert initial values to standard SI units (e.g., using millimeters in resistivity or Celsius in thermal speed calculations).
วิธีหลีกเลี่ยง: Convert temperature to Kelvin by adding 273.15, and convert lengths from millimeters or centimeters to meters before substituting into equations.
4highคะแนนที่เกี่ยวข้อง: 1Working as a Physicist (Concept-led approach)
Drawing excessively small triangles when evaluating the gradient of a curve or tangent line.
วิธีหลีกเลี่ยง: Construct a large gradient triangle on your line of best fit that covers at least 50% of the active axis span.
5highคะแนนที่เกี่ยวข้อง: 2Electric and Magnetic Fields (Concept-led approach)
Failing to state 'rate of change of magnetic flux linkage' in electromagnetic induction questions, opting instead for vague descriptions.
วิธีหลีกเลี่ยง: Always state that a changing current/motion causes a 'rate of change of magnetic flux linkage', which induces an e.m.f. according to Faraday's law.
Omitting key reaction forces or leaving out clear directional arrows in free-body diagrams (e.g. reaction forces from support columns).
วิธีหลีกเลี่ยง: Ensure all force vectors are drawn with straight lines, start exactly at the boundary or center of mass, point in the true force direction, and are explicitly labelled.
7highคะแนนที่เกี่ยวข้อง: 1Working as a Physicist (Concept-led approach)
Failing to write down intermediate algebraic substitution steps in multi-mark 'show that' questions, rendering numerical outputs ineligible for full marks.
วิธีหลีกเลี่ยง: Always show the full formula, the values substituted with their powers of 10, and write down an unrounded intermediate answer before stating the final rounded 'show that' value.
8mediumคะแนนที่เกี่ยวข้อง: 2Working as a Physicist (Concept-led approach)
Confusing the term 'precision' (closeness of repeated measurements) with 'resolution' (smallest division on a measuring tool) or 'accuracy'.
วิธีหลีกเลี่ยง: Learn the precise definitions: precision relates to the spread of repeated readings, resolution to the measuring scale, and accuracy to the closeness to the true value.
9mediumคะแนนที่เกี่ยวข้อง: 1Working as a Physicist (Concept-led approach)
Assuming that repeating measurements and calculating a mean reduces systematic errors.
วิธีหลีกเลี่ยง: Clearly state that repeating measurements only mitigates the effect of random errors and helps identify anomalies; systematic errors (like zero errors or calibration shift) are unaffected.
Believing that upthrust on a closed gas canister decreases when gas is released.
วิธีหลีกเลี่ยง: Remember that upthrust depends strictly on the volume of fluid displaced. Since the canister's physical volume remains constant, the upthrust remains constant, but the mass of gas inside decreases, making the canister lighter.