Comprehensive exam-day strategies, common mistakes, and practical guidance for Pearson Edexcel International A Level Physics (YPH11), covering Units 1 to 6.
阅读时间 5 分钟更新于: 2026年6月21日
试卷概览
卷数
6
总分
440
考试时间
9小时 10分钟
题型
4
试卷
时间
分数
题数
比重
题型
Unit 1: Mechanics and Materials (WPH11)
1小时 30分钟
80
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—
—
Unit 2: Waves and Electricity (WPH12)
1小时 30分钟
80
—
—
—
Unit 3: Practical Skills in Physics I (WPH13)
1小时 20分钟
50
—
—
—
Unit 4: Further Mechanics, Fields and Particles (WPH14)
1小时 45分钟
90
—
—
—
Unit 5: Thermodynamics, Radiation, Oscillations and Cosmology (WPH15)
1小时 45分钟
90
—
—
—
Unit 6: Practical Skills in Physics II (WPH16)
1小时 20分钟
50
—
—
—
评级
A*ABCDEU
计算器规定
A scientific or graphical calculator is permitted. Graphical calculators must be in exam mode with all stored programs and data cleared before the exam; the calculator must not be able to retrieve stored text or formulae.
根据历届试题与评分标准整理（2023–2026）。
计算器程序
Graph: zeros, intersections & turning points
Graphical calculator / GDC (exam mode)
用途: Plot a function to read its roots (zeros), points of intersection, and maxima/minima.
使用时机: Checking solutions, sketching, or solving where an analytic method is hard.
步骤
Graph the function(s) and use the built-in zero, intersect and maximum/minimum tools.
考试提示: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Numerical equation solver
Graphical calculator / GDC (exam mode)
用途: Solve an equation or find a variable numerically when an algebraic route is long or implicit.
使用时机: Iterative or implicit equations, or to confirm an algebraic solution.
步骤
Use the equation/zero solver, entering the equation and a sensible starting estimate.
考试提示: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Numerical integration & differentiation
Graphical calculator / GDC (exam mode)
用途: Evaluate a definite integral \(\int_a^b f(x)\,dx\) or a gradient \(f'(x)\) at a point.
使用时机: Checking calculus answers, or where only a numerical value is needed.
步骤
Use the GDC's numeric integral / derivative function with the limits or the point.
考试提示: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Statistics & probability distributions
Graphical calculator / GDC (exam mode)
用途: 1-var/2-var statistics, linear regression, and cumulative binomial / normal / Poisson probabilities without tables.
使用时机: Statistics questions and hypothesis tests.
步骤
Enter data in the statistics editor, or use the distribution menu (binomial cdf, normal cdf, …).
考试提示: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
常见错误
1high涉及分数: 2Mechanics, Materials, and Thermodynamics
Failing to convert standard prefix units (e.g., mm, cm, ms, g, MeV) into base SI units before substitute-calculating.
如何避免: Convert all prefixes (e.g. mm to m, ms to s, g to kg, MeV to J) at the very start of your working before carrying out algebraic manipulations.
2high涉及分数: 1General Physics Calculations
Losing accuracy on 'Show that' questions by not showing unrounded intermediate values before the final rounded result.
如何避免: State the initial algebraic equation, show the raw substitutions, write down the unrounded intermediate value (to at least 3-4 s.f.), and then write the final rounded answer.
3high涉及分数: 2Practical Skills in Physics
Drawing a gradient triangle that is too small when calculating experimental gradients from graphs.
如何避免: Ensure the gradient triangle spans at least 50% of the drawn line of best fit on your graph, and clearly label the vertex coordinates used.
4medium涉及分数: 2Materials and Practical Skills
Forgetting to double the percentage uncertainty of variables that are squared in a formula (e.g., area d^2, or time t^2).
如何避免: Apply the fractional uncertainty power rule: %U(x^n) = n * %U(x). For squared quantities, always multiply the individual percentage uncertainty by 2.
5high涉及分数: 2Mechanics
Misidentifying weight and normal contact force (or weight and magnetic forces) as Newton's Third Law force pairs.
如何避免: Newton's Third Law pairs must act on two different bodies, be of the same type of force, and act in opposite directions. Weight and normal contact force act on the same body.
6medium涉及分数: 1Waves and Particle Nature of Light
Omitting the factor of 2 in round-trip pulse-echo calculations (e.g., radar, sonar, or ultrasound testing).
如何避免: Write down the relationship 2s = v * t for any pulse-echo or round-trip wave scenario to explicitly account for the double journey.
7high涉及分数: 2Thermodynamics
Using temperature values in Celsius instead of absolute Kelvin in ideal gas or thermodynamics kinetic equations.
如何避免: Always convert temperatures to Kelvin using T (K) = theta (C) + 273.15 before substituting values into pV = NkT or mean kinetic energy equations.