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. 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
Sinusoidal motion
velocity
Work
Periodic Waves


2. 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
The strong force: also called the nuclear force
Concept of a field
Apparent weightlessness
To calculate the time the projectile is in the air


3. P = I
4 universal forces
Inductors during an increase in current
Electric Power
Center of mass


4. Applies to objects in motion. A key sliding across the table eventually comes to a stop because of kinetic friction.
Torque
Newton's Second Law
Kinetic friction
Linear Momentum


5. VL = Vcellxe - t / (L / R) I = (Vcell/R)x[ 1 - e - t / (L / R) ] L / R = t = time constant
Inductors during an increase in current
Apparent weightlessness
Analysis of pulley systems
Rotational Kinetic Energy


6. Also called fundamental forces: Nuclear - electromagnetic - weak - gravity
Lorentz Transformation Factor
4 universal forces
scalar
material properties


7. 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
velocity
Kinetic friction
Centripetal Force (F=- mv2/r)
Stress and Strain


8. The __________ at a horizontal surface is equal to the weight
Heat of a Phase Change
normal force
Static friction
Angular frequency


9. SFx = 0 and SFy = 0
Resistance of a Wire
Torque force at Equilibrium
Inelastic collisions
Linear Expansion


10. 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:
Uniform circular motion
Capacitance of a Capacitor
Average acceleration
times the cosine


11. P + ?xgxh +

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12. For light: Ep = hxf = hxc / ? = pxc Therefore - momentum: p = h / ? Similarly for particles - p = mxv = h / ? - so the matter wave's wavelength must be ? = h / m v
Constructive interference
Projectiles
de Broglie Matter Waves
Friction


13. 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).
Capacitance of a Capacitor
To calculate how far did the projectile travel
Torques - lever arms
Torque force at Equilibrium


14. ?U = QNet + WNet
Analysis of pulley systems
Coulomb's Law
Magnetic Field around a wire
First Law of Thermodynamics


15. R = ?xL / Ax ? = resistivity of wire material L = length of the wire Ax = cross - sectional area of the wire
speed
Resistance of a Wire
Translational equilibrium (Sum of Fi = 0)
Bernouilli's Equation


16. Satellites orbiting the Earth are in free fall. Their centripetal acceleration equals the acceleration from the Earth's gravity.
no work is done
Newton's Second Law
Orbiting in space
Coulomb's Law


17. 1/R? = 1/R1 + 1/R2 + 1/R3 + etc. **When resistors are in parallel - the voltage drop is equal across the entire combination - i.e. V? = V1 = V2 = V3 = ...**

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18. Real and apparent.
material properties
Hooke's Law
There are two kind of weightlessness
effort decreases


19. Y or S or B = stress / strain stress = F/A
Stress and Strain
Buoyant Force - Buoyancy
Equilibrium
Lorentz Transformation Factor


20. Mass / volume (unit : kg /m3 ) ? = m/v
Potential Energy stored in a Capacitor
Spring Force - Work
Density
Capacitors in parallel


21. E=2.3110?

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22. Distance and direction of an object's change in position from the starting point
Motion on an inclined plane
displacement
Amount of work done in gravitational field is path - independent
tangent


23. Q = mxcx?T (no phase changes!) Q = the heat added c = specific heat. ?T = temperature change - K
The strong force: also called the nuclear force
Heating a Solid - Liquid or Gas
Thin Lens Equation
beta (Beta) particle


24. In an object going down the inclined plane at constant velocity: parallel component of gravity...
= kinetic friction
Buoyant Force - Buoyancy
Density
Newton's first law - inertia


25. 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).
Sinusoidal motion
Projectiles
Magnetic Flux
round


26. Beta=sqrt 1- v^2/c^2
4 universal forces
Electric Power
Lorentz Transformation Factor
Work


27. T=mv^2/L
Speed of a Wave on a String
Kirchoff's Laws
Freely falling bodies
Heating a Solid - Liquid or Gas


28. A measure of both the speed and direction of a moving object. V=?x/?t
Real weightlessness
velocity
Torque
Torque forces


29. Total kinetic energy before = total kinetic energy after.
Density
constant
Conservation of kinetic energy
Blackbody Radiation and the Photoelectric Effect


30. Periodic frequency resulting from the superposition of two waves that have slightly different frequencies. f(beat) = |f1- f2|
weakest
Beats
Magnetic Flux
To calculate how far did the projectile travel


31. The acceleration due to gravity is ______ because the force (weight) and mass of the object is constant. However - if you take air resistance into consideration - the acceleration is no longer _______.
constant
de Broglie Matter Waves
weakest
times the cosine


32. The weakness of gravity is reflected in the ____________ - G - which is orders of magnitude smaller than the Coulomb's constant.
Friction
Angular Speed vs. Linear Speed
negative
universal gravitational constant


33. 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.
velocity and displacement
Projectile Motion
Real weightlessness
Simple Harmonic Motion


34. I = Q/t and R = ?l/A
Newton's Second Law
Destructive interference
velocity and displacement
Current and Resistance


35. The velocity at an instant (infinitesimal time interval).
Instantaneous velocity
Torque forces
Ohm's Law
larger


36. FF =
Freely falling bodies
Friction
Periodic Waves
Static friction


37. N = c / v c = speed of light = 3 E+8 m/s
Index of Refraction
Mechanical Energy
Hooke's Law
Newton's second law (F = ma)


38. Gravity decreases with the square of the distance. If the distance increases two fold - gravity decreases by a factor of four.
Friction Force
Relativistic Time Dilation
Resistance of a Wire
Law of gravitation (F = Gm1m2/r^2)


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

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40. Operation involving a __________ may or may not result in a vector (kinetic energy from the square of vector velocity results in scalar energy).
Rotational equilibrium (Sum of Torque = 0)
vector and a vector
Center of Mass - point masses on a line
Work


41. B=
Magnetic Field around a wire
vector and a vector
Current and Resistance
Resistance of a Wire


42. F=g(m1m2/r^2) G = 6.67 E-11 N m
Universal Gravitation
Entropy change at constant T
terminal velocity
free fall


43. 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.
Apparent weightlessness
Rotational equilibrium (Sum of Torque = 0)
Spring Force - Work
Ideal Gas Law


44. ?t = ?to / Beta
Continuity (fluids)
Relativistic Time Dilation
Thin Lens Equation
vertical acceleration


45. At ___________ - weight = friction - so the net force is 0. Thus - the acceleration is 0. So - the speed stays constant at terminal velocity
terminal velocity
Centripetal Force
Capacitance of a Capacitor
Density


46. 1/C? = 1/C1 + 1/C2 + 1/C3 + etc. **Voltages sum when capacitors are in series (V? = V1 + V2 + V3 ...)**
Destructive interference
parallel
Capacitors in series
Work - Power


47. ?. equal to v(k/m) or - 2(pi)(f)
Entropy change at constant T
velocity
Static friction
Angular frequency


48. 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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49. The strongest of all four forces - but it only acts at subatomic distances. It binds nucleons together.
2nd Law of Thermodynamics
Equilibrium
Torques - lever arms
The strong force: also called the nuclear force


50. 1e0 (an electron);
larger
beta (Beta) particle
Angular Speed vs. Linear Speed
Freely falling bodies