# Common graph questions

Can we discuss common graph questions that we can expect on the AP test?

Sure!
There are a few very common graphs that you might see on the exam:

1. position vs time - x vs t, h vs t, \theta vs t
• Slope = velocity (or \omega for \theta vs t)
• Curved Slope = Accelerating,
*Concave up = positive accel.
*Concave down = negative accel.
2. velocity vs time (or \omega vs time for rotational)
• Slope = acceleration (or \alpha)
• Area = change in position (displacement)
3. Force vs Time
• Area = Impulse (Change in Momentum)
4. Force vs Displacement
• Area = Work done on the object (change in Energy)
5. Energy Graphs
• If Energy vs position - PEg is linear, PEs is polynominal (PE_s = 1/2kx^2)

Hope this helps!

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