📚 Calculating Speed Mark Scheme | 计算速度评分标准
Speed is one of the most fundamental concepts in KS3 physics, and knowing how to calculate it correctly is essential for exam success. This guide breaks down the CIE mark scheme requirements for speed calculations, showing you exactly what examiners look for and how to earn full marks on every calculation question.
速度是KS3物理课程中最基本的概念之一，正确掌握速度的计算方法对于考试成功至关重要。本指南详细解析CIE评分标准中有关速度计算题的要求，帮你了解考官真正的得分点，从而在每道题中拿到满分。
1. The Speed Formula | 速度公式
ed, d is the distance travelled, and t is the time taken. This equation must be committed to memory. In the CIE mark scheme, recalling the correct formula is often the first mark awarded in a calculation question.
物体的速度描述它运动得快慢。在物理学中，速度定义为物体在单位时间内通过的距离。连接这三个量的基本方程是：速度 = 距离 ÷ 时间。用符号表示为 v
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