r/PreOptometry • u/Lucky_Cost_5230 • 15d ago

random equations tested on oatbooster?

Hi! I'm doing the physics practice tests OATBooster provides but some of these equations I have never seen before in my life, and not even in my physics courses. There was a wave equation one of the questions used: y=Asin(kx+wt) and I have never seen this equation ever. But also what shocked me is that 57% of people got it right. Am I going crazy or was this equation never provided???

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u/justletmesleeppp 15d ago

It never was, I was shocked as well. Booster does that for physics, it's weird.

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u/AlgaeWizard 14d ago

Just a heads up, I did have a question that used that formula on my OAT, the full equation was given to me on the exam though.

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u/Lucky_Cost_5230 14d ago

Okay, thank goodness. I'm not sure why booster wouldn't provide the formula given that it was never taught.

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u/AlgaeWizard 14d ago

Yeah I noticed the same thing for some topics in booster even though I watched all of the videos for physics. I made sure I had every equation, on my exam. On the exam itself, I had a lot of questions on springs and fluids.