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. F=mv^2/R=m?r






2. ?. equal to v(k/m) or - 2(pi)(f)






3. Total momentum before = total momentum after.






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






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






6. 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.






7. The velocity is always less or equal to the speed. The displacement is always less or equal to the distance. Displacement and velocity are vectors. Distance and speed are not.






8. mv - where m is mass - v is velocity and the symbol for momentum is p. xImpulse = Ft - where F is force and t is the time interval that the force acts.






9. Centripetal force is due to centripetal acceleration. Centripetal acceleration is due to changes in velocity when going around a circle. The change in velocity is due to a constant change in direction. ?Sometimes a negative sign is used for centripet






10. 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






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






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






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






14. Kinetic energy is __________ - so there are no positive / negative signs to worry about.






15. Pulleys reduce the force you need to lift an object. The catch - it increases the required pulling distance. xComplex pulleys will have additional ropes that contribute to the pulling of the load (most likely not tested on the MCAT).






16. E= nxhxf where h = Planck's constant






17. The speed.






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






19. F = kxx Potential Energy of a spring W =

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


20. ?P = 8x?xLxQ/(pxr4) ? = coefficient of viscosity L = length of pipe r = radius of pipe Q = flow rate of fluid

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


21. 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






22. R = ?xL / Ax ? = resistivity of wire material L = length of the wire Ax = cross - sectional area of the wire






23. E = moxc2






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






25. The direction of instantaneous velocity is _______ to the path at that point Ave speed = distance / time = v = d/t






26. ?S = Q / T (Phase changes only: melting - boiling - freezing - etc)






27. 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






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






29. In an object going down the inclined plane at constant velocity: parallel component of gravity...






30. Static friction is always ____ than kinetic friction.






31. When something is laying still on a horizontal surface - the normal force is ___________ to the weight.






32. Distance and direction of an object's change in position from the starting point






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






34. E=2.3110?

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


35. For a given mass - its weight on Earth is different from its weight on the _____.






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






37. Each resistor has the same current; differenct voltage drop. Total resistance = R1+R2+R3+. . .

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


38. The value of speed/velocity - distance/displacement are interchangeable in this case - just keep a mental note of the direction. Ave acceleration = change in velocity / time






39. T = torque = Ixa I = moment of inertia = mxr

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


40. Logarithmic unit of measurement that expresses the magnitude of a physical quantity (usually power or intensity) relative to a specified or implied reference level. B (Decibel level of sound) = 10 log ( I / Io ) I = intensity of sound Io = intensity






41. b






42. 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


43. Change in the apparent frequency of a wave as observer and source move toward or away from each other. Toward Away.






44. 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






45. The acceleration produced by a net force on a body is directly proportional to the magntude of the net force - is in the same direction as the net force - and is inversely proportional to the mass of the body. Fnet = SFExt = mxa

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


46. Ainxvin = Aoutxvout A= Area v = velocity






47. ?x = Betax?xo






48. Induced current flows to create a B- field opposing the change in magnetic flux

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


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






50. a = v^2/r f= mv^2/r cir = 2TT*r xnote that theta is always in radians. To convert degrees to radians - use this formula: