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MCAT Physics
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MCAT Physics
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25 Questions

1. xSpeed: scalar - no direction - rate of change in distance.

2. When the centripetal force is taken away (Such as when the string snaps) - the object will...

3. xW = Fdcos? - F is force - d is the distance over which the force is applied - and ? is the angle between the force and distance. xDerived units - sign conventions - It is energy - and the unit is the Joule - Joule = N

4. Ainxvin = Aoutxvout A= Area v = velocity

5. Operation involving a ___________ always results in a vector.

6. It makes things accelerate - change velocity or change direction. In the MCAT - it is indicated by an arrow. The direction of the arrow is the direction of the force. The magnitude of the force is often labeled beside the arrow. F=ma - so the unit f

7. ( sin ?1 )/(sin ?2 ) = v1 /v2 = n2 /n1 = ?1 /?2 n = c/v

8. The vector sum of the momenta of all the shrapnel from the explosion.

9. P =

10. Change in momentum:

11. There is no acceleration in the ________. The horizontal component of velocity is constant.

12. The ______ arm consists of a rigid rod and a fulcrum (where the center of rotation occurs). The torque is the same at all positions of the lever arm (both on the same side and on the other side of the fulcrum). ?If you apply a force at a long distanc

13. W = F d cos? and P = ?W/?t

14. T=mv^2/L

15. M = mo / Beta

16. Horizontal: x-x?= v?xt + 0 Vertical: y-y? = v?xt +

17. FF =

18. Instantaneous velocity has ________ - instantaneous speed does not.

19. Uniformly accelerated motion along a straight line

20. Applies to objects sitting still. An object can sit still on an inclined plane because of static friction.

21. The change in internal energy of a system is ?U = QAdded + WDone On - Qlost - WDone By

22. Accelerate toward the ground at a constant velocity.

23. The distance of pulling increases by the same factor that the _______.If the weight of the box is 100 N - you have to pull with a force of 100 N. For every 1 meter you pull - the box goes up 1 meter. When there is one moving pulley - the force needed

24. C? = C1 + C2 + C3 + etc. **When capacitors are in parallel - the voltage drop is equal across the entire combination - i.e. V? = V1 = V2 = V3 = ...**

25. Unlike friction - gravity always acts downwards. Thus - it does not matter what detour you take because sideward motion perpendicular to the gravitational force involves no work.