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MCAT Physics

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 30 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. Q = mxL L = Latent Heat of phase change






2. F = BxAxcos ?






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






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






5. A measure of both the speed and direction of a moving object. V=?x/?t






6. ?Q / ?t = kxAx?T / L k = thermal conductivity A = area of solid L = thickness of solid






7. Total momentum before = total momentum after.






8. Real and apparent.






9. The __________ of the projectile velocity is always accelerating toward the Earth at a rate of g.






10. Accelerate toward the ground at a constant velocity.






11. 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).






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






13. Are free falling bodies.






14. 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






15. ?x = Betax?xo






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






17. FF =






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






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






20. Acceleration in the opposite direction.






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






22. 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.






23. Even though they are accelerating toward the Earth - they never crash into the Earth's surface because the Earth is _____ (the surface curves away from the satellite at the same rate as the satellite falls).






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






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






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






27. Force equals mass times acceleration. Fnet = SFExt = mxa


28. 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






29. Motion of a particle fom point A to point B. x = x 0 + v 0 t + 1/2at2 and V






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






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






32. 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.






33. Back and forth oscillatory motion corresponding to sound. x = Axcos(?xt) = Axcos(2xpxf xt) ? = angular frequency f = frequency






34. Q = mc ? T (MCAT !) and Q = mL






35. T=mv^2/L






36. PxV = nxRxT n = # of moles of gas R = gas law constant = 8.31 J / K mole. - law that states the math relationship of pressure (P) - volume (V) - temperature (T) - the gas constant (R) - and the number of moles of a gas (n); PV=nRT.






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






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






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


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






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






42. Beta=sqrt 1- v^2/c^2






43. Ainxvin = Aoutxvout A= Area v = velocity






44. 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.






45. 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






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






47. ET = Ek + Ep and E = mc2






48. First get the time in the air by the vertical component. Then use the horizontal component's speed x time of flight. (Don't even think about over - analyzing and try to calculate the parabolic path).






49. Friction always does ___________ because frictional forces always act against the direction of motion.






50. The force that acts on a mass - It has a magnitude and a direction. It is a vector. Because it is a force - F=ma holds true.