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 and the distance applied is in the same direction...






2. 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






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






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






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






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






7. Mass/volume p= m/V






8. M = mo / Beta






9. F = qxvxBxsin ?






10. 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






11. On Earth - the rate of acceleration is g - which is ______.






12. b






13. B=






14. When things are at rotational equilibrium - there the sum of all torques = 0.






15. ET = Ek + Ep and E = mc2






16. Linear speed = v = rx? = r x angular speed






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






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






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






20. ? + ?gh + 1/2 ?v2 = constant

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


21. If the object is sliding - then you are dealing with ___________ and it will be constant and equal to






22. When things are at translational equilibrium - the vector sum of all forces = 0. Things at ______________ either don't move - or is moving at a constant velocity. If an object is accelerating - it's not in equilibrium.






23. Total momentum before = total momentum after.






24. ?U = QNet + WNet






25. In an object that accelerates down the inclined plane: parallel component of gravity...






26. 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






27. T = FxLxsin ? Where ? is the angle between F and L; unit: Nm






28. 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


29. The point of maximum displacement in a standing wave.






30. P =






31. ?x = Betax?xo






32. For things being tossed upwards - take all upward motion such as initial velocity as __________. Leave all






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






34. Ainxvin = Aoutxvout A= Area v = velocity






35. 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.






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






37. 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






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






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






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






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






42. Unless the object levitates or crashes through the inclined plane - the normal force always equals...






43. P =






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






45. 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.






46. The increase in volume of a substance due to an increase in temperature. Linear: ?L = Loxax?T Volume: ?V = VoxBetax?T






47. The distance of stretch or squeeze of an elastic material is directly proportional to the applied force 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


48. C = ?xeoxA / d ? = dielectric constant A = area of plates d = distance between plates eo = 8.85 E(-12) F/m






49. ?t = ?to / Beta






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