📚 Year 7 SQA Physics: A Parent's Guide to Supporting Your Child | Year 7 SQA 物理：家长辅导指南
Supporting your child through Year 7 SQA Physics can feel daunting, but you do not need to be a scientist to help. This guide provides practical strategies, topic breakdowns and simple experiments to build your child's confidence and curiosity in physics. The SQA broad general education phase encourages understanding through everyday experiences, and your involvement can make a huge difference to how your child thinks about science.
陪伴孩子学习七年级 SQA 物理可能令人生畏，但您不必是科学家也能提供帮助。本指南提供了实用的策略、主题拆解和简单的实验，以建立孩子对物理学的信心和好奇心。SQA 广泛普通教育阶段鼓励通过日常经验来理解物理，您的参与可以极大地影响孩子对科学的看法。
1. Understanding the Year 7 SQA Physics Curriculum | 了解七年级 SQA 物理课程大纲
In Year 7, physics is taught as part of the SQA science curriculum, focusing on building foundational knowledge rather than preparing for a single high-stakes exam. The key areas include forces and motion, energy, electricity, waves, matter and space. Pupils also develop scientific inquiry skills such as observing, predicting, measuring and recording data.
七年级的物理是 SQA 科学课程的一部分，侧重于建立基础知识，而不是为某一场高风险考试做准备。关键领域包括力与运动、能量、电、波、物质和太空。学生还会发展科学探究技能，如观察、预测、测量和记录数据。
This stage is often described as the broad general education, or BGE, which runs from nursery through to the end of S3. There is no formal SQA physics exam in Year 7, so the emphasis is on understanding, curiosity and practical work rather than memorising past-paper answers.
这一阶段通常被称为广泛普通教育（BGE），从幼儿园一直延续到 S3 结束。七年级没有正式的 SQA 物理考试，因此重点在于理解、好奇心和动手实践，而不是背诵历年真题答案。
A useful way to think about the year is that your child is collecting a toolkit of ideas and vocabulary. Speed, force, energy, voltage, particle and orbit are all words that will return again and again in National 4 and National 5 Physics later on.
可以这样理解这一年：孩子正在积累一套概念与词汇的工具箱。速度、力、能量、电压、粒子和轨道这些词，在日后的 National 4 和 National 5 物理中都会反复出现。
| Topic | 中文主题 | Key Ideas | 关键概念 |
|---|---|---|---|
| Forces & Motion | 力与运动 | Push and pull, friction, gravity, speed calculation | 推拉、摩擦力、重力、速度计算 |
| Energy | 能量 | Forms of energy, conservation, transfers, GPE | 能量形式、守恒、转化、重力势能 |
| Electricity | 电 | Circuits, current, voltage, resistance, safety | 电路、电流、电压、电阻、安全 |
| Waves | 波 | Sound and light, vibration, reflection | 声和光、振动、反射 |
| Matter | 物质 | Particle model, states of matter, density | 粒子模型、物质状态、密度 |
| Space | 太空 | Solar System, day and night, seasons, gravity | 太阳系、昼夜、季节、重力 |
By being aware of these topics, you can link everyday situations to what your child learns in school. Ask them to explain a topic to you; teaching someone else is one of the most effective ways to consolidate understanding.
了解这些主题后，您就能把日常生活中的情境与孩子在校所学联系起来。请他们把一个主题讲给您听；把知识教给别人，是巩固理解最有效的方法之一。
2. Where Year 7 Sits in the Scottish BGE Journey | 七年级在苏格兰广泛普通教育中的位置
Depending on how your school numbers its year groups, Year 7 may be the final year of primary or the first year of secondary. In Scottish state schools the equivalent stage is usually P7 or S1, and both sit inside the Broad General Education that runs to the end of S3.
取决于学校如何编排年级，七年级可能是小学最后一年，也可能是中学第一年。在苏格兰公立学校中，对应阶段通常是 P7 或 S1，两者都属于延续到 S3 结束的广泛普通教育。
During the BGE, teachers assess against Curriculum for Excellence experiences and outcomes, often described as benchmarks. Learners are graded as beginning, developing, consolidating or secure in a topic rather than being given a percentage mark.
在 BGE 阶段，教师依据"卓越课程"的经验与成果（通常称为基准）进行评估。学生在一个主题上的评价是"起步、发展中、巩固中或已掌握"，而不是给出百分比分数。
Senior phase qualifications begin in S4, when pupils typically choose National 4 or National 5 subjects, then Highers in S5 and Advanced Highers in S6. Year 7 physics is therefore a foundation year: what matters now is secure understanding, not early exam drilling.
高中阶段的资格证书从 S4 开始，学生通常选择 National 4 或 National 5 科目，S5 学习 Higher，S6 学习 Advanced Higher。因此七年级物理属于奠基之年：当下重要的是扎实的理解，而不是过早刷题。
This means you should judge progress by whether your child can explain ideas in their own words, apply a formula to a new situation and describe how they carried out an experiment - not by the speed at which they complete worksheets.
这意味着判断进步的标准，应该是孩子能否用自己的话解释概念、能否把公式应用到新情境、能否描述自己如何完成实验，而不是完成练习册的速度。
3. Forces and Motion: The Core of Year 7 Physics | 力与运动：七年级物理的核心
Forces are pushes or pulls, measured in newtons (N) with a newton meter. Pupils learn to separate contact forces, such as friction, air resistance and normal force, from non-contact forces such as gravity, magnetism and electrostatic force.
力是推或拉，用牛顿（N）作为单位，用弹簧测力计测量。学生要学会区分接触力（如摩擦力、空气阻力和支持力）与非接触力（如重力、磁力和静电力）。
Gravity on Earth gives a gravitational field strength of about 9.8 N/kg, often rounded to 10 N/kg in class. A mass of 1 kg therefore has a weight of about 10 N, and pupils must not confuse the two words.
地球上的重力场强度约为 9.8 N/kg，课堂上常取 10 N/kg。因此质量 1 kg 的物体重量约为 10 N，学生必须分清"质量"和"重量"这两个概念。
Speed is a scalar quantity describing how fast something moves, while velocity includes direction. The basic relationship used at this level is shown below.
速率是描述运动快慢的标量，而速度包含方向。这一阶段使用的基本关系式如下。
speed = distance ÷ time (m/s) = (m) ÷ (s)
m/s, and a pupil should be able to explain why this is an average rather than an instantaneous value.
对这个公式进行变形是必备技能。如果一名骑行者 15 s 内行驶 120 m，平均速率为 120 ÷ 15 = 8 m/s，学生还应能解释为什么这是平均速率而非瞬时速率。
Balanced forces produce no change in motion; unbalanced forces produce acceleration, a change in direction or a change in shape. Everyday examples such as a skateboard slowing down on tarmac or a parachute reaching terminal velocity make this idea concrete.
平衡力不会改变运动状态；不平衡力会产生加速度、改变方向或改变形状。滑板在柏油路面上减速、降落伞达到终极速度等日常例子，能让这一概念变得具体。
4. Energy: Forms, Transfers and Conservation | 能量：形式、转化与守恒
Energy is measured in joules (J) and appears in many forms: kinetic, gravitational potential, elastic potential, thermal, chemical, light, sound, nuclear and electrical. Pupils need to be able to name the useful and wasted transfers in a device.
能量的单位是焦耳（J），有多种形式：动能、重力势能、弹性势能、热能、化学能、光能、声能、核能和电能。学生需要能指出某装置中有用损耗的能量转化。
The principle of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed. In a falling ball, gravitational potential energy becomes kinetic energy and some thermal energy through air resistance.
能量守恒定律指出，能量既不能被创造也不能被消灭，只能被转移或转化。在下落的球中，重力势能转化为动能，同时因空气阻力产生一部分热能。
Ep = m × g × h Ek = ½ × m × v²
In the gravitational potential energy equation, m is mass in kilograms, g is 9.8 N/kg and h is height in metres. Kinetic energy uses the square of the speed, which is why doubling speed quadruples kinetic energy - a point worth discussing with your child in the context of road safety.
在重力势能公式中，m 是质量（千克），g 取 9.8 N/kg，h 是高度（米）。动能使用速率的平方，因此速率翻倍会使动能变为四倍——这一点可以结合道路安全与孩子讨论。
ercentage. Power is the rate of energy transfer, measured in watts (W), where 1 W = 1 J/s.
效率比较有用输出能量与总输入能量，通常用百分比表示。功率是能量转化的速率，单位是瓦特（W），1 W = 1 J/s。
efficiency = (useful energy out ÷ total energy in) × 100% P = E ÷ t
5. Electricity: Circuits, Current, Voltage and Safety | 电：电路、电流、电压与安全
Pupils draw circuit diagrams using standard symbols for cells, batteries, lamps, switches, resistors, ammeters and voltmeters. Current is the flow of charge, measured in amperes (A) with an ammeter connected in series.
学生使用电池、灯泡、开关、电阻、电流表和电压表等标准符号绘制电路图。电流是电荷的流动，单位是安培（A），用电流表串联测量。
Voltage, or potential difference, is the energy transferred per unit charge, measured in volts (V) with a voltmeter connected in parallel across a component. Resistance, measured in ohms (Ω), describes how hard it is for current to flow.
电压（电位差）是单位电荷转移的能量，单位是伏特（V），用电压表并联在元件两端测量。电阻的单位是欧姆（Ω），描述电流流动的难易程度。
V = I × R (volts) = (amperes) × (ohms)
In a series circuit the current is the same at every point and the supply voltage is shared between components. In a parallel circuit the voltage across each branch is the same and the current splits, which is why household wiring uses parallel circuits.
在串联电路中，各处电流相同，电源电压由各元件分担。在并联电路中，各支路两端电压相同，电流分流——这正是家庭布线采用并联的原因。
Electrical safety is a central learning outcome. Mains electricity in the UK is about 230 V and 50 Hz, which is far more dangerous than a 1.5 V cell. Pupils should recognise the purpose of fuses, circuit breakers, insulation and earthing.
用电安全是核心学习成果之一。英国市电约为 230 V、50 Hz，远比 1.5 V 干电池危险。学生应认识保险丝、断路器、绝缘和接地的作用。
6. Waves: Sound, Light, Vibration and Reflection | 波：声、光、振动与反射
A wave transfers energy without transferring matter. Sound waves are produced by vibrating objects and need a medium, so they cannot travel through a vacuum; light waves are electromagnetic and can.
波传递能量而不传递物质。声波由振动产生，需要介质，因此不能通过真空传播；光波是电磁波，可以通过真空传播。
Frequency is measured in hertz (Hz) and determines pitch; amplitude determines loudness. The speed of sound in air is roughly 340 m/s, which is why you see lightning before you hear thunder.
频率的单位是赫兹（Hz），决定音调；振幅决定响度。声音在空气中的速率约为 340 m/s，这就是先看到闪电后听到雷声的原因。
The law of reflection states that the angle of incidence equals the angle of reflection, both measured from the normal, the line perpendicular to the surface.
反射定律指出，入射角等于反射角，两者都从法线（垂直于镜面的直线）量起。
angle of incidence (θᵢ) = angle of reflection (θᵣ)
Pupils also meet refraction, where light changes direction as it passes between media of different density, and colour, where white light is dispersed into a spectrum. A simple torch and mirror in a darkened room makes both reflection and shadow formation memorable.
学生还会接触折射——光在密度不同的介质间传播时改变方向，以及颜色——白光被分解为光谱。在暗室中用简单的手电筒和镜子，能让反射和影子的形成印象深刻。
7. Matter: Particle Model, States of Matter and Density | 物质：粒子模型、物态与密度
The particle model explains the properties of solids, liquids and gases in terms of the arrangement, spacing and motion of particles. In solids particles vibrate about fixed positions, in liquids they slide past each other, and in gases they move rapidly and randomly.
粒子模型用粒子的排列、间距和运动来解释固体、液体和气体的性质。固体中粒子在固定位置振动，液体中粒子相互滑动，气体中粒子快速无规则运动。
Changes of state - melting, freezing, boiling, condensing and subliming - involve energy transfer but no change in temperature while the change is taking place. This surprises many pupils and is a good discussion point at home.
物态变化——熔化、凝固、沸腾、凝结和升华——涉及能量转移，但在变化过程中温度保持不变。这一点常让学生惊讶，也是很好的家庭讨论话题。
density = mass ÷ volume (kg/m³) = (kg) ÷ (m³)
Density helps explain why a heavy steel ship floats while a small stone sinks. Comparing mass to volume, and using the particle model to explain expansion when a substance is heated, are both common assessment tasks.
密度可以解释为什么沉重的钢船能浮起，而小石子却下沉。比较质量与体积，并用粒子模型解释物质受热膨胀，都是常见的评估任务。
8. Space: The Solar System, Day and Night, Seasons and Gravity | 太空：太阳系、昼夜、季节与重力
Pupils should know the order of the planets from the Sun - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune - and be able to compare their relative sizes and distances using models or scaled diagrams.
学生应知道行星距太阳由近及远的顺序——水星、金星、地球、火星、木星、土星、天王星和海王星，并能借助模型或比例图比较它们的相对大小和距离。
Day and night result from the Earth rotating on its axis once every 24 hours. Seasons result from the Earth's axis being tilted at about 23.5° as it orbits the Sun, so each hemisphere receives sunlight at a different angle through the year.
昼夜由地球绕轴自转一周 24 小时产生。季节则源于地球公转时地轴倾斜约 23.5°，使两个半球在一年中接收阳光的角度不同。
es and the light year, the distance light travels in one year, approximately 9.5 × 10¹⁵ m.
引力使行星保持在轨道上并产生潮汐。在太阳系之外，学生还会了解恒星、星系和光年——光在一年中传播的距离，约为 9.5 × 10¹⁵ m。
Space is often the topic that hooks children into physics. Watching a moon-phase calendar or tracking sunset times over a month turns abstract ideas into observable evidence.
太空常常是让孩子迷上物理的主题。坚持记录月相日历，或在一个月内追踪日落时间，可以把抽象概念变成可观测的证据。
9. Scientific Inquiry Skills: Observing, Predicting, Measuring and Recording | 科学探究技能：观察、预测、测量与记录
Physics is not only a body of knowledge but a way of working. Pupils are expected to plan a fair test, identify the independent variable they change, the dependent variable they measure and the controlled variables they keep the same.
物理不仅是知识体系，也是一种工作方式。学生需要设计公平实验，识别他们改变的自变量、测量的因变量以及保持不变的受控变量。
Accurate measurement matters. Pupils should choose appropriate instruments, read scales correctly, consider uncertainty and repeat readings to improve reliability rather than simply writing down one result.
准确测量很重要。学生应选择合适的仪器、正确读数、考虑不确定度，并通过重复读数提高可靠性，而不是只记录一个结果。
Data is usually recorded in a table with clear headings and units, then displayed as a line graph or bar chart. From the pattern in the graph, pupils draw a conclusion and evaluate how the method could be improved.
数据通常记录在标题和单位清晰的表格中，再绘制成折线图或柱状图。根据图中的规律，学生得出结论并评估实验方法可如何改进。
You can support this at home by asking three simple questions after any practical work: What did you change? What did you measure? What would you do differently next time?
您可以在家这样支持：任何实验之后问三个简单问题——你改变了什么？你测量了什么？下次你会怎样做得不同？
10. Simple Home Experiments You Can Do in the Kitchen | 厨房里的简单家庭实验
Practical work at home does not need expensive equipment. A kitchen provides measuring jugs, scales, water, oil, syrup, drinking straws, elastic bands and torches - enough for a term of genuine investigation.
在家做实验不需要昂贵器材。厨房里有量杯、秤、水、油、糖浆、吸管、橡皮筋和手电筒——足以支撑一整个学期的真实探究。
- Density tower: layer honey, syrup, water and oil in a tall glass and predict the order, then drop in a grape and a cork.
- 密度塔：在高杯中依次加入蜂蜜、糖浆、水和油，先预测顺序，再放入葡萄和软木塞观察。
- Balloon rocket: thread a straw onto a string, tape a balloon to it and release to show unbalanced forces and motion.
- 气球火箭：把吸管穿在绳子上，将气球粘在吸管上并放气，展示不平衡力与运动。
- Simple circuit: use a 1.5 V cell, bulb and wire to test which materials are conductors and which are insulators.
- 简单电路：用 1.5 V 电池、小灯泡和导线测试哪些材料是导体、哪些是绝缘体。
- Sound ruler: hold a ruler over the table edge and change the overhang to hear pitch change with frequency.
- 声音直尺：把直尺压在桌边，改变伸出长度，听音调随频率变化。
- Ice melting race: place identical ice cubes on foil, a plate and a cloth and time which melts first.
- 融冰比赛：把相同的冰块分别放在铝箔、盘子和布上，计时看哪块先融化。
The golden rule is to ask your child to predict first, then test, then explain. The explanation matters far more than the result being right or wrong.
黄金法则是让孩子先预测、再检验、最后解释。解释的过程远比结果对错更重要。
11. Supporting Homework and Revision Without Doing It For Them | 如何支持作业与复习而不代劳
Children need a consistent place and time to work. A short, distraction-free session of 20 to 30 minutes is usually more productive than an hour with a phone nearby, and a written plan for the week reduces last-minute panic.
孩子需要固定的地点和时间学习。20 至 30 分钟无干扰的高效学习，通常比手机在旁边的一个小时更有成效，而每周写下计划能减少临时抱佛脚。
When your child is stuck, resist the urge to give the answer. Instead ask: What do you already know? What formula might help? Can you draw a diagram? This keeps the thinking with the learner.
孩子卡住时，请忍住直接给答案的冲动。改为问：你已经知道什么？哪个公式可能有用？能不能画个图？这样思考仍在学习者身上。
Numeracy is embedded throughout physics, so estimating answers and checking units is valuable practice. If a speed of 8 m/s seems reasonable for a runner but 800 m/s does not, your child is checking answers like a physicist.
数学能力贯穿整个物理学习，因此估算答案和检查单位是很有价值的练习。若 8 m/s 对跑步者合理而 800 m/s 明显不合理，说明孩子已经像物理学家一样检验答案。
Short, regular retrieval practice beats rereading notes. Ask your child to write down everything they remember about energy for two minutes, then check the gaps together and revisit them a week later.
短时、定期的提取练习优于反复阅读笔记。让孩子用两分钟写下关于能量的所有记忆，然后一起查看遗漏处，并在一周后再次复习。
12. Working With the School and Building Long-Term Confidence | 与学校合作并培养长期信心
Parents' evenings, school reports and the pupil's jotter or online learning platform all show how your child is progressing against the BGE benchmarks. Ask the teacher which specific skills need attention rather than a general request for help.
家长会、学校报告以及学生的笔记本或在线学习平台，都能显示孩子对照 BGE 基准的进展。请向老师询问具体哪项技能需要加强，而不是笼统地要求帮助。
Practical work, group investigations and science clubs often reveal strengths that written tests do not. A child who struggles with equations may shine at designing a fair test or explaining a result to the class.
动手实验、小组探究和科学社团常常能展现笔试看不到的优势。一个在公式上吃力的孩子，可能在设计公平实验或向全班解释结果时表现出色。
Praise effort and strategy rather than innate talent. Comments such as "you changed your method and it worked" build the resilience that Highers and Advanced Highers later demand.
