Question

Are AP Physics equations allowed in a AP Calc test?

Answer 1

The only reason I ask is that I'm in both classes (AP Physics C:Mechanics/AP Calc BC) and I find myself using formulas from one class to answer the question in another class. I did one question in Calc involving the motion of an object and used some physics formulas to solve it. The work for both solutions was similar (like solving for the time using the same derived formula etc). The only problem for Calc would be rectilinear motion as far as I've learned and Work. I want to know if an AP grader of either exam would take off for using a physics formula or vice-versa?

Answer 2

I don't see why not long as you understand the problem, but make sure to confirm it with your teacher.

Answer 3

You should know most physics equations are derived from calculus anyways.

Answer 4

That's why I'm looking at them and saying "why can't I use what I feel like as long as I know that's what I need to solve the problem". I knew how to do it using calculus but it's much easier to follow once you have physics formulas. I was asking on the basis of an AP grader would they look at v^2=v_0^2+2ad and think oh no points off?

Answer 5

It likely depends on what you are given in the question. If you are only given a graph or function for position vs time, for instance, you will want to derive velocity and acceleration using principles of calculus to demonstrate your understanding of the source of the equations you have memorized for physics..

Answer 6

In general, you should avoid memorizing formulas in calculus that aren't purely mathematical, like the kinematic equations. All problems on the AP calc test assume no knowledge of physics, so it shouldn't be necessary to use them. Instead you will most likely be given something like a graph of velocity vs time, and they will expect you to integrate to find displacement and take the derivative for acceleration, but these concepts are inherent in the graph and don't rely on physics.