If all the laws of physics always happen the same, then what relevance does the frame of reference have?

Answer If you observe the world from an inertia frame of reference—meaning that you aren't accelerating—then all of the laws of physics will apply properly to the objects you see. Energy will be conse... Read More »

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Should I have already obtained a high knowledge of physics before doing AS Physics in college?

at least a B in gcse physics and a good grasp of maths (A or B gcse) should be fine. you don't need to learn anything extra after gcse before you start your a level.