## Test your basic knowledge |

# AP Physics

**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. What is the formula relating emf and voltage?**

**2. How is the net work of a system (gas) measured?**

**3. What direction controls time in falling body and projectile motion problems?**

**4. Which type of radiation has the highest energy?**

**5. What are the differences and similarities between transverse and longitudinal waves?**

**6. What comprises gamma decay?**

**7. What is electromagnetic induction?**

**8. How is tube length and wavelength related for a tube that is closed on ONE end?**

**9. What do you know about two objects that are launched at different horizontal velocities?**

**10. What is the difference between the variable 'q' and 'Q?'?**

**11. S.I. unit of centripetal force**

**12. How can total momentum be calculated?**

**13. Formula for the electric field between a pari of charged plates.**

**14. What is force times the perpendicular distance?**

**15. What two things must be true for a positive magnification?**

**16. What shape is a diverging lenses?**

**17. In a pendulum or spring - what are the displacement - velocity - PES - and K at maximum displacement?**

**18. What is the relationship between voltage - current and resistance?**

**19. What is the energy equation if you see a height difference between two points in the problem?**

**20. What equation describes the distance that a dropped object falls 't' seconds after it started moving?**

**21. A ball rolls inside a salad bowl. The ball is released along the top edge and rolls down before climbing to the same height on the opposite side of the bowl. What is the direction of the acceleration of the ball when it at the top edge of the bowl?**

**22. What does the term electric potential energy mean?**

**23. How do you find the number of neutrons in an atom?**

**24. When is the image negative for mirrors?**

**25. What is the difference between atomic number and atomic mass number?**

**26. What is the name given to the distance between the pivot point and applied perpendicular force?**

**27. Unit that means the same thing as Nm**

**28. If you double the mass of one planet - triple the mass of another - and move them twice as far apart - what happens to the force of attraction between them?**

**29. What is the difference between reflection - refraction - and diffraction?**

**30. How is tube length and wavelength related for a tube that is opened on both ends?**

**31. The speed of a ball when it lands at the same height it was thrown from.**

**32. Define mass in terms of density.**

**33. What is the difference between elastic and inelastic collisions? State the relevant equations for each.**

**34. What is an isotope?**

**35. What comprises alpha radiation?**

**36. This is the gauge pressure when under water.**

**37. What doesn't change (speed - frequency - or wavelength) - when light moves from one medium to another?**

**38. What is the photoelectric effect?**

**39. Formula for the potential difference of a point charge as compared to infinity.**

**40. What shape is a converging mirrors?**

**41. Which kind of mirror always has a virtual image?**

**42. In electrostatics - what takes the place of m and g in the formulae?**

**43. What is the energy equation if you see a particle accelerated perpendicular to two charged plates - or the problem states that the particle is accelerated through a potential difference?**

**44. Which type of lenses have a NEGATIVE focal length?**

**45. What does the pattern look like in a Young's Single Slit diffraction pattern?**

**46. S.I. unit of momentum**

**47. What are the two forms of the ideal gas law?**

**48. What makes an image 'real?'**

**49. What do you do with any vector that is not on either the x or y axis?**

**50. S.I. unit of work**