## Test your basic knowledge |

# AP Physics B: Formulas

**Instructions:**

- Answer 50 questions in 15 minutes.
- If you are not ready to take this test, you can study here.
- Match each statement with the correct term.
- Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

**1. F(friction) = N**

**2. EMF (two formulas)**

**3. Kirchhoffs Junction rule**

**4. Total internal reflection**

**5. Kinetic energy**

**6. Voltage across a battery terminal**

**7. P(avg) = W/?t**

**8. natural frequencies in a closed tube**

**9. v = v0 + 2a(x-x0)**

**10. F(gravity) = -(Gm1m2/r)**

**11. Elastic collision**

**12. heat flow through a window or door**

**13. Force on a charged particle in a magnetic field**

**14. W**

**15. Voltage-charges formula (2)**

**16. Centripetal force**

**17. a(centripetal) = v/r**

**18. e = (T(hot) - T(cold))/T(hot)**

**19. Carnot engine**

**20. Resistivity in a wire**

**21. Couloms law (force between two charged objects)**

**22. Vsound**

**23. Momentum**

**24. U(spring) = kx**

**25. Velocity of a wave**

**26. Adiabatic process**

**27. vrms (2 equations)**

**28. Force on a current carrying wire in a magnetic field**

**29. F-F or NF-NF**

**30. v = v(3RT)/M = v(3KT)/**

**31. On a banked curve in circular motion - Fn in the y is**

**32. Kirchhoffs loop rule [conservation of energy]**

**33. Simple harmonic motion - pendulum**

**34. H = (kA?T)/L**

**35. Magnitude of gravitational forces between objects**

**36. On an inclined plane - gravity in the x**

**37. P + pgy + pv = const.**

**38. torque**

**39. Series Circuits**

**40. Change in pressure**

**41. Vectors in momentum**

**42. Electric field intensity**

**43. On an inclined plane - gravity in the y**

**44. Ideal gas laws**

**45. PV = nRT = NkT**

**46. A1V1 = A2V2**

**47. Positive torque**

**48. Pascals principle**

**49. Net force/apparent weight broken done**

**50. Voltage (circuts)**