In physics, one of the big differences between KS3 and KS4 is the idea of “change”. KS3 students are happy to talk about speed being distance divided by time but at GCSE level you need to be thinking instead about speed being a rate of change of distance. Why is this important? Because physics calculations … Continue reading Delta and the Power of Change
Voltage and Current
When you first started learning about circuits, either in primary school or in Y7, you should have been told about voltage and current. These two measurements were probably presented as separate ideas but in fact they both relate to one thing; electrical charge. Voltage relates to the amount of energy given to the charge that … Continue reading Voltage and Current
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