📚 PH01-INS Application Question Techniques for the Jan 2023 Insert | PH01-INS 2023年1月插入资料应用题技巧
In every Edexcel International AS Physics Unit 1 (PH01) examination, you are provided with an insert – a compact booklet packed with constants, equations, unit conversions and reference data. The 9 January 2023 Insert was no exception. Learning to use this resource skilfully will not only save you precious memory space but also boost your accuracy when tackling application questions. This article walks you through proven techniques for extracting maximum value from the PH01 insert during timed problem-solving.
每次 Edexcel 国际 AS 物理第一单元 (PH01) 考试都会提供一份插入资料——一本包含常数、公式、单位换算和参考数据的紧凑小册子。2023 年 1 月 9 日的插入资料也不例外。学会熟练运用这份资料不仅能节省宝贵的记忆空间，还能提高解答应用题时的准确性。本文将带你掌握在限时解题中最大化利用 PH01 插入资料的实用技巧。
1. Understanding the Insert Layout | 了解插入资料的布局
Start by familiarising yourself with the typical structure. The Jan 2023 insert opened with fundamental constants such as the gravitational field strength g, the speed of light c and the Planck constant h. These were followed by mechanics equations, materials formulas and wave relationships. Before the exam, glance at a past insert to know exactly where each section sits – this pre-loading stops you from wasting time flipping pages under pressure.
首先要熟悉典型的布局结构。2023 年 1 月的插入资料以基本常数开头，如重力场强 g、光速 c 和普朗克常数 h。随后是力学方程、材料公式和波的关系式。考前浏览一份过往的插入资料，准确记住各板块的位置——这种预先熟悉能避免你在考试压力下浪费时间来回翻页。
2. Quick Reference to Constants | 快速查阅物理常数
The insert lists universal constants that frequently appear in application questions. For example, the magnitude of the acceleration of free fall was given as g s you to calculate the weight of an object of mass 4.50 kg, simply scan the constants section, grab g, and use W = mg. Never assume a value from memory – always use the printed figure, because examiners expect the exact number provided.
插入资料列出了经常出现在应用题中的普适常数。例如，地球表面自由落体加速度的大小给定为 g = 9.81 m s⁻²。如果一道题要求计算质量为 4.50 kg 的物体所受重力，只需扫视常数部分，取出 g，然后使用 W = mg。永远不要凭借记忆假定数值——始终使用打印出的数据，因为阅卷人期望你引用提供的精确数字。
Other constants like the Avogadro constant Nₐ = 6.02 × 10²³ mol⁻¹ or the electron charge e question involves moles or electric charge, copy these values directly into your working to avoid rounding errors. Treat the insert as your single source of truth.
插入资料还列出了其他常数，如阿伏伽德罗常数 Nₐ = 6.02 × 10²³ mol⁻¹ 或电子电荷 e = 1.60 × 10⁻¹⁹ C。当题目涉及摩尔或电荷时，直接将上述数值抄到你的解题步骤中，以避免舍入误差。要把插入资料当作唯一的数据来源。
3. Navigating the Formula Sheet | 浏览公式表
Application questions often ask you to combine two or more equations. The insert groups formulas by topic: kinematics, dynamics, energy, materials and waves. Suppose you need to find the extension of a spring under load. Locate Hooke's law F = kΔL in the materials section. If the spring constant isn't given but you have force and extension data from a graph, the equation is right there – no need to recall it.
应用题经常要求你组合两个或多个方程。插入资料按主题对公式进行了分组：运动学、动力学、能量、材料以及波。假设你需要求弹簧受力后的伸长量。在材料部分可以找到胡克定律 F = kΔL。如果劲度系数未知，但题目给出了力和伸长的图像数据，方程就在眼前——无需回忆。
Equations of motion such as v = u + at, s = ut + ½at² and v² = u² + 2as are prominently displayed. When a problem describes a car accelerating from rest, immediately spot the equation that contains the known quantities and the unknown. Write the formula from the insert line for line to avoid sign errors.
运动学方程如 v = u + at、s = ut + ½at² 和 v² = u² + 2as 被显著列出。当题目描述一辆汽车从静止加速时，立即找出包含已知量和未知量的那个方程。逐行从插入资料中抄写公式，以避免符号错误。
4. Unit Conversions Made Easy | 轻松完成单位换算
The Jan 2023 insert included a compact table of prefixes and unit conversions: kilo (10³), mega (10⁶), milli (10⁻³), micro (10⁻⁶) and more. Application questions frequently mix units – a distance might be given in millimetres while speed is in metres per second. Use the conversion strip in the insert to convert everything to base SI units before plugging into formulas.
2023 年 1 月的插入资料含有一个简洁的前缀和单位换算表：千 (10³)、兆 (10⁶)、毫 (10⁻³)、微 (10⁻⁶) 等等。应用题经常混用单位——距离可能以毫米给出，而速度却以米每秒表示。利用插入资料中的换算条，先将所有量化为国际单位制基本单位，再代入公式。
, a wavelength of 540 nm should be written as 540 × 10⁻⁹ m = 5.40 × 10⁻⁷ m by referring to 'nano' 50 kg. Never guess: the insert makes these conversions trivial, so cross-check every time.
例如，通过查阅前缀表中的“纳”，波长 540 nm 应化为 540 × 10⁻⁹ m = 5.40 × 10⁻⁷ m。类似地，质量 250 g 化为 0.250 kg。绝不要靠猜：插入资料让这些换算变得简单，所以每次都要交叉核对。
5. Interpreting Graphs and Data | 解读图表与数据
Many PH01 application questions include a graph of results and ask for a gradient or intercept. The insert often supplies the relevant equations so you can match the graph's slope to a physical quantity. For a velocity–time graph, the gradient gives acceleration; the insert confirms a = (v – u) / t. When dealing with a force–extension graph, the gradient equals the spring constant k; look up Hooke's law in the insert to reinforce your deduction.
许多 PH01 应用题包含结果图像，并要求计算斜率或截距。插入资料通常提供相关方程，使你可以将图像斜率与物理量对应。对于速度–时间图，斜率给出加速度；插入资料中的 a = (v – u) / t 会加以确认。处理力–伸长图时，斜率等于劲度系数 k；查阅插入资料中的胡克定律可以印证你的推导。
In some questions you are asked to calculate the Young modulus from stress–strain data. The insert defines E = σ / ε and also gives σ = F / A and ε = ΔL / L. Use those printed relationships to systematically build your working; it reduces the chance of confusing stress and strain.
有些题目要求你根据应力–应变数据计算杨氏模量。插入资料定义了 E = σ / ε，并给出了 σ = F / A 和 ε = ΔL / L。利用这些打印好的关系式系统地构建解题过程，可以降低混淆应力和应变的概率。
6. Linking Theory to Application | 理论与应用相结合
The insert is not just a formula dump – it connects concepts. For wave questions, it lists v = fλ alongside the refractive index formula n = sin i / sin r. When a question describes a ray entering glass, first identify that you need Snell's law, then look up the exact format in the insert. This prevents silly mistakes like swapping the angles.
插入资料不仅是公式堆砌——它把概念联系了起来。在波相关的问题中，它同时列出了 v = fλ 和折射率公式 n = sin i / sin r。当题目描述一条光线进入玻璃时，首先明确你需要使用斯涅尔定律，然后在插入资料中查找精确的形式。这能防止弄错角度顺序之类的低级错误。
In materials, the insert gives the energy stored in a stretched wire as E = ½FΔL or ½k(ΔL)². If a question asks about elastic potential energy, pick the version that uses the data you already have – you do not need to memorise both forms.
在材料部分，插入资料给出了拉伸丝线储存的能量公式 E = ½FΔL 或 ½k(ΔL)²。如果题目问到弹性势能，选择使用已有数据的那一种形式——你不需要把两种形式都背下来。
7. Spotting Common Traps | 识别常见陷阱
Examiners love to test whether you can select the right equation version. The insert might show v² = u² + 2as for constant acceleration, but some problems involve non-uniform acceleration where this does not hold. Always check the phrase "constant acceleration" in the question; if it is absent, the insert's kinematics equations may be invalid.
出题人喜欢考查你能否选出正确的方程形式。插入资料可能给出匀加速运动的 v² = u² + 2as，但有些问题涉及非匀加速运动，此时该式并不成立。务必检查题目中的“匀加速”字样；若未出现，插入资料中的运动学方程可能无效。
Another trap is using g e fall when air resistance cannot be neglected. The insert gives the ideal value; you must still decide whether the model applies.
另一个陷阱是当空气阻力不能忽略时，仍盲目地对自由落体使用 g = 9.81 m s⁻²。插入资料给出的是理想值；你仍然需要判断该模型是否适用。
8. Exam Strategy with the Insert | 利用插入资料的考试策略
Allocate the first 60 seconds of reading time to scanning the insert quickly. Note any unusual constants (e.g. the density of water or the speed of sound in air) that might appear in a specific context. Underline or mentally bookmark them so you can return instantly later.
在阅读时间的前 60 秒内，快速扫视插入资料。注意任何可能在特定情境中出现的非常规常数（例如水的密度或空气中的声速）。在心理上给它们划重点，以便随后能瞬时回查。
When you encounter an application question, read the stem, underline the given quantities, and then open the insert to locate the formula. Write the chosen equation on your answer paper before substituting any numbers. This step-by-step discipline lowers stress and improves marking clarity.
遇到应用题时，先读题、给已知量画下划线，然后打开插入资料定位公式。在代入任何数字之前，先把选中的方程写在答题纸上。这种循序渐进的纪律能降低紧张感并提高卷面清晰度。
9. Worked Example: Calculating Terminal Velocity | 实例演示：计算终端速度
Consider a PH01-style problem: "A steel ball of radius 1.50 mm and density 8050 kg m⁻³ falls through oil. The viscosity of the oil is 0.650 Pa s. Use the insert to estimate the terminal velocity." The insert gives Stokes' law F = 6πηrv for a sphere in a fluid. At terminal velocity, weight = viscous drag + upthrust. Weight W = ⁴⁄₃πr³ρg is not in the insert directly, but you know it from the volume of a sphere. However, the insert does not list volume formulas; it assumes you recall geometry. The drag force equals W when upthrust is negligible. Set ⁴⁄₃πr³ρg = 6πηrv, cancel π and r, solve for v = (2r²ρg) / (9η). Plug r = 1.50 × 10⁻³ m, ρ = 8050 kg m⁻³, g = 9.81 m s⁻², η heck units. The answer emerges as 0.061 m s⁻¹. All crucial constants came from the insert; only the sphere volume was recalled.
思考一道 PH01 风格的题目：“一个半径为 1.50 mm、密度为 8050 kg m⁻³ 的钢球在油中下落。油的粘度为 0.650 Pa s。使用插入资料估算终端速度。”插入资料给出了球体在流体中的斯托克斯定律 F = 6πηrv。在终端速度下，重力 = 粘滞阻力 + 浮力。重力 W = ⁴⁄₃πr³ρg 并没有直接出现在插入资料中，但你可以通过球体体积公式得到它。插入资料未列出体积公式，它假定你记得几何公式。当浮力可忽略时，阻力等于重力。设 ⁴⁄₃πr³ρg = 6πηrv，约去 π 和 r，解得 v = (2r²ρg) / (9η)。代入 r = 1.50 × 10⁻³ m、ρ = 8050 kg m⁻³、g = 9.81 m s⁻²、η = 0.650 Pa s。逐步计算并检查单位，最终得到 0.061 m s⁻¹。所有关键常数均来自插入资料；仅球体体积需要回忆。
10. Practising with Past Inserts | 用历年插入资料练习
Build your confidence by printing the official PH01 insert from the Edexcel website and keeping it beside you while solving past papers. At first, you may need to search for every equation; with repetition, you will develop a "visual index" of the page, knowing instantly where each formula lives. That speed is what turns a good student into a grade A achiever.
从 Edexcel 官网打印官方的 PH01 插入资料，并在刷历年真题时把它放在身边，以此建立信心。起初你可能需要逐个查找公式；通过重复练习，你将形成对页面的“视觉索引”，迅速知道每个公式的位置。这种速度正是让好学生成为 A 等生的关键。
After completing a set of application questions, mark which formulas you had to look up. Then, without the insert, try to write those equations from memory. This targeted practice closes knowledge gaps without overwhelming you.
做完一组应用题后，标记出你需要查阅的公式。然后，合上插入资料，尝试默写这些方程。这种针对性的练习能弥补知识漏洞，又不会让你负担过重。
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