Test your basic knowledge |

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. If the force is acting in one direction - but the object moves in a perpendicular direction - then...






2. DF = dq v(B sin a) = I dl(B sin a)

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


3. P = ?xgxh h = depth of water ? = density of water






4. A force that is always in the direction to impede motion xLike any other force - friction is a vector. However - its direction is easy because it's always opposite to motion.






5. 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.






6. M = - Di / Do = - i / o = Hi / Ho - Dimensionless value denoted by m given by the equation: m = - i/o - where i is image height and o is object height. A negative m denotes an inverted image - whereas a positive m denotes an upright image.






7. If the force and the distance applied is in opposite directions...






8. The ____________ of g toward the Earth holds true at all times - even when the projectile is traveling up (it's decelerating on its way up - which is the same thing as accelerating down).






9. Friction acts ________ to the plane surface and opposite to the direction of motion. In a non - moving object on an inclined plane: normal component of gravity = normal force; parallel component of gravity = static friction.






10. I. Linear: strain = ?L / L II. Shear: strain = ?x / L III. Volume: strain = ?V / V






11. Addition of two waves when the crest of one overlaps the crest of another - so that their individual effects add together. The result is a wave of increased amplitude.






12. This is what we 'weightlessness' really means when we see astronauts orbiting in space. The astronauts are falling toward the earth due to gravitational forces (weight) - but they are falling at the same rate as their shuttle - so it appears that the






13. Change in momentum:






14. Periodic frequency resulting from the superposition of two waves that have slightly different frequencies. f(beat) = |f1- f2|






15. Applies to objects in motion. A key sliding across the table eventually comes to a stop because of kinetic friction.






16. Voltage created by the combination of movement and a magnetic field. Emf=N(?F/?t)






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






18. F = qxvxBxsin ?






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






20. Fx?t = ?(mxv)






21. Q = mxcx?T (no phase changes!) Q = the heat added c = specific heat. ?T = temperature change - K






22. 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






23. For the purposes of the MCAT - these are lines. When lines are close together - that's shows a strong field. When lines are far apart - that shows a weak field. Lines / fields have direction too - and that means they are vectors. Things travel parall






24. Static friction is always ____ than kinetic friction.






25. Y or S or B = stress / strain stress = F/A






26. Vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium. T=2p(sqrt(m)/(k)) where k = spring constant = 1 / T = 1 / period






27. X = Axcos(?xt) = Axcos(2xpxf xt) ? = angular frequency f = frequency






28. If the object is not moving - you are dealing with ___________ and it can have any value from zero up to






29. F=g(m1m2/r^2) G = 6.67 E-11 N m






30. Mass / volume (unit : kg /m3 ) ? = m/v






31. Quantity described by magnitude but not direction (time - area - volume)






32. At ___________ - weight = friction - so the net force is 0. Thus - the acceleration is 0. So - the speed stays constant at terminal velocity






33. FB = ?xVxg = mDisplaced fluidxg = weightDisplaced fluid ? = density of the fluid V = volume of fluid displaced






34. E = hxf = mxc2 h = Planck's constant = 6.63 E(-34) J sec f = frequency of the photon






35. (physics) a rate of change of velocity






36. ?x = Betax?xo






37. VL = Vcellxe - t / (L / R) I = (Vcell/R)x[ 1 - e - t / (L / R) ] L / R = t = time constant






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






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






40. V2 = rxgxtan ?






41. Also called fundamental forces: Nuclear - electromagnetic - weak - gravity






42. Conservation of both momentum and kinetic energy - e.g. if you drop a ball and the ball bounces back to its original height






43. Operation involving a ____________ always results in a scalar.






44. Fo = fs (V






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






46. A = Aoxe - k t = (1/2n)xA0 (after n half - lives) Where k = (ln 2) / half - life






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






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






49. Use the vertical component only- calculate the time it takes for the projectile to hit the ground.






50. Uniformly accelerated motion along a straight line