GCSE WJEC Science: Clarifying Common Misconceptions | GCSE WJEC 科学：概念辨析

📚 GCSE WJEC Science: Clarifying Common Misconceptions | GCSE WJEC 科学：概念辨析

In GCSE WJEC Science, students often confuse similar-sounding terms. This article clarifies ten pairs of commonly misunderstood concepts across physics, chemistry and biology, helping you avoid those tricky exam pitfalls.

在GCSE WJEC科学中，学生经常混淆相似术语。本文辨析物理、化学和生物中十对常见的易混概念，帮助你避开考试中的那些陷阱。

1. Mass vs Weight | 质量与重量

Mass is the quantity of matter in an object. It is a scalar quantity, meaning it has magnitude only and no direction. Mass is measured in kilograms (kg) using a balance and does not change depending on location.

质量是物体所含物质的多少。它是标量，只有大小没有方向。质量用天平以千克(kg)为单位测量，不随位置改变。

Weight, on the other hand, is the gravitational force acting on an object. It is a vector quantity, having both magnitude and direction (downwards towards the centre of the Earth). Weight is measured in newtons (N) using a spring balance or force meter. The weight of an object can be calculated using the formula:

另一方面，重量是作用在物体上的重力。它是一个矢量，既有大小

Published by TutorHao | GCSE Science Revision Series | aleveler.com

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