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MCAT Physics

Subjects : mcat, science
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. W = F d cos? and P = ?W/?t






2. V = IxR V = voltage applied I = current R = resistance

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3. F = qxvxBxsin ?






4. If the force and the distance applied is in the same direction...






5. E=2.3110?

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6. The angular equivalent of a force - it makes things rotate - have angular acceleration - change angular velocity and direction.






7. The strongest of all four forces - but it only acts at subatomic distances. It binds nucleons together.






8. A v = const. and ?Av = const.






9. Whenever something is in the air - it's in a ___ - even when it is being tossed upwards - downwards or at an angle.






10. P + ?xgxh +

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11. The speed at an instant (infinitesimal time interval).






12. The velocity at an instant (infinitesimal time interval).






13. The significance of Newton's first law on equilibrium is: things in equilibrium will remain in equilibrium unless acted on by an external force. Things resist change in momentum because of inertia (try stopping a truck. It's not easy because it resis

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14. Vector - has direction - rate of change in displacement.






15. Change in momentum:






16. (physics) a rate of change of velocity






17. ?t = ?to / Beta






18. You weigh more on an elevator accelerating up because F=mg + ma - where a is the ______________ of the elevator.






19. Mass per unit of volume.?=m/V(unit : kg /m3 )






20. V2 = rxgxtan ?






21. The weakness of gravity is reflected in the ____________ - G - which is orders of magnitude smaller than the Coulomb's constant.






22. 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






23. The average distance - weighted by mass - in a Cartesian coordinate - it is the point obtained by doing a weighted average for all the positions by their respective masses.






24. The law of inertia basically states the following: without an external force acting on an object - nothing will change about that object in terms of speed and direction. In the absence of an external force: xSomething at rest will remain at rest - So

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25. Satellites orbiting the Earth are in free fall. Their centripetal acceleration equals the acceleration from the Earth's gravity.






26. In an object that begins to slip on the inclined plane: parallel component of gravity...






27. When there is no net gravitational force acting on you. Either you are so far out in space that there's no objects around you for light -years away - or you are between two objects with equal gravitational forces that cancel each other out.






28. F = - kx and W = kx2 /2






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






30. Interference in which individual displacements on opposite sides of the equilibrium position are added together to form the resultant wave. Must 180 degrees out of phase






31. 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.






32. 'rotational equivalent of force'; a force applied so as to cause an angular acceleration. t = FxLxsin ?






33. Instantaneous speed equals instantaneous velocity ____________.






34. The normal force at an inclined plane is equal to the weight __________ of the incline angle (see inclined planes).






35. xYou can only directly add vectors if they are in the same direction - To add vectors in different directions - you must add their x - y and z components. The resulting components make up the added vector.






36. SFx = 0 and SFy = 0






37. FF =






38. Gravity decreases with the square of the distance. If the distance increases two fold - gravity decreases by a factor of four.






39. ET = Ek + Ep and E = mc2






40. When something is laying still on an inclined plane - the normal force and friction force adds up in a _________ to equal the weight.






41. Sum of all torques acting on an object is zero. No net angular acceleration.






42. B=






43. M = mo / Beta






44. Operation involving a __________ may or may not result in a vector (kinetic energy from the square of vector velocity results in scalar energy).






45. +Net Heat added to the system +Net Work done on the system






46. F = BxAxcos ? Force caused by a magnetic field on a moving charge F = qxvxBxsin ?






47. The speed.






48. Moving around a circle at constant speed - frequency = How many times the object goes around the circle in one second. Period = time it takes to move around the entire circle.






49. Loop Rule: SAround any loop ?Vi = 0 Node Rule: Sat any node Ii = 0

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50. A net force acting on an object will cause that object to accelerate in the direction of the net force. The unit for force is the Newton. Both force and acceleration are vectors because they have a direction.

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