Master Pearson Edexcel International AS Level Physics (XPH11) with examiner-led strategies covering mechanics, waves, electricity, and practical data analysis. Eliminate unit conversion errors, conquer vector resolutions, and secure maximum marks in structured calculation questions.
อ่าน 4 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
3
คะแนนเต็ม
210
เวลาสอบ
4ชม. 20นาที
ประเภทคำถาม
4
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
WPH11/01
1ชม. 30นาที
80
19
40%
Multiple Choice Questions (MCQs), Structured Written & Calculation
WPH12/01
1ชม. 30นาที
80
19
40%
Multiple Choice Questions (MCQs), Structured Written & Calculation
WPH13/01
1ชม. 20นาที
50
4
20%
Practical Data Response & Graphing
เกณฑ์เกรด
ABCDEU
ข้อกำหนดเครื่องคิดเลข
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.
AO1: AO1: Knowledge and understanding of physics (35%)
AO2: AO2: Application of knowledge and understanding of physics (40%)
AO3: AO3: Experimental skills and investigative capabilities in physics (25%)
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, 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)
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, 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)
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, 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)
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, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 3Materials
Failing to convert Young Modulus or material stress values from GPa or MPa to Pa, leading to severe order-of-magnitude errors.
วิธีหลีกเลี่ยง: Multiply GPa values by 10^9 and MPa values by 10^6 before performing any algebra or calculation steps.
2highคะแนนที่เกี่ยวข้อง: 4Mechanics
In projectile motion, using the vertical acceleration (g) in horizontal distance calculations, or treating horizontal velocity as variable.
วิธีหลีกเลี่ยง: Keep horizontal components (constant velocity, zero acceleration) completely separate from vertical components (SUVAT with g = 9.81 m/s^2 downwards).
3mediumคะแนนที่เกี่ยวข้อง: 2Waves and Particle Nature of Light
Failing to divide the total round-trip travel time by two in pulse-echo / ultrasonic distance calculations.
วิธีหลีกเลี่ยง: Identify reflection scenarios (ultrasound, sonar, radar) and write down t_one_way = t_total / 2 as your very first step.
4mediumคะแนนที่เกี่ยวข้อง: 3Mechanics
Taking moments about a pivot on a uniform door or bar and forgetting to halve its total width to locate the center of gravity.
วิธีหลีกเลี่ยง: Always locate the weight of a uniform object at exactly half its physical length (L/2) when setting up the principle of moments.
5highคะแนนที่เกี่ยวข้อง: 3Materials
When analyzing a falling sphere to find terminal velocity or viscous drag, omitting the fluid upthrust force from the force balance.
วิธีหลีกเลี่ยง: Apply Newton's first law for terminal velocity: Viscous Drag + Upthrust = Weight. Drag is not equal to Weight alone unless upthrust is explicitly stated as negligible.
6highคะแนนที่เกี่ยวข้อง: 2Materials
Drawing a forced line of best fit through the origin (0,0) in Unit 3 graphing when the raw experimental data has a clear non-zero intercept.
วิธีหลีกเลี่ยง: Never force a line of best fit through the origin unless theoretical physics dictates it. Follow the natural distribution of your plotted points.