The Student Room Group
I'm guessing that PHY4 will have something about measuring (and showing that it's proportional to whatever) the time period of a simple pendulum or a mass on a spring, because this didn't come up in the pracitcal.

I also think that PHY5 will have something to do with an exponential graph, because, I don't think this came up on the practical.
Reply 2
I dunno about phy4 i forgot most of it ( i did it in Jan :king1: ) but for phy5 Transformers usually come. Step down transformers.

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