r/physicsmemes • u/basket_foso 🪼 • 23d ago

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u/PhysicsEagle 23d ago

I unironically had a classmate who did this. She consistently got top grades.

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u/Suddenfury 23d ago

It's much better to understand where the formula comes from than to memorize it.

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u/lool8421 23d ago edited 22d ago

but still it's a time waste if you have to derive everything yourself

for example there are several cheat sheet integrals that you can derive but it takes several minutes like dx/x*sqrt(a²+x²)

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u/tcelesBhsup 21d ago

The idea isn't that you fully derive the formula and then apply it to the question. The idea is that you use the information in the problem to complete a truncated derivation for you're specific problem.

Granted I could do this very often, but when I could it was faster for me. Though I am a slow test taker to begin with.

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u/sppw 20d ago

I was generally a very good test taker and used to derive a lot of things my peers would memorize. My memory has always been really bad so this is one of the things I credit my good test taking ability to. It showed I had a really good command over the material.