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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
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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. process of combing smaller nuclei to create larger nuclei
Surface
F=c/?
Fusion
B=(F/A)/(?V/V)

2. SI unit for pressure
Pascal (Pa) N/m^2
A sin?=n?
N=c/v
Sin=0 cos=-1

3. snell's law derivative
N is proportional to 1/?
P=1/f
Degree=p/180 radian
The liquid itself not the object

4. work function
Virtual upright
Energy required to free electron from given metal
Upright image
Will never decrease capacitance

5. negative charge moves spontaneously from
N2>n1
Low voltage to high voltage
V^2=vo^2+2a?x ?x=1/2(vo+v)t
2pr

6. What does atoms atomic weight represent
F=c/?
W'=?E=?KE+?U
EV
Weighted average of the masses of the element

7. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=
1/f=1/o+ 1/i
F=ma
N2>n1

8. relationship between linear thermal expansion and volumetric thermal expansion
V=IR
3a=Beta
K+U=constant
Counterclockwise is + clockwise is -

9. amplitude of spring is proportional to...
Force and acceleration
Wave speed
B=
Solid to gas

10. relate charge and current
F=- kx
Coulomb=amphere*sec
A sin?=n?
Increases

11. weight
Resistor
Emf is negative
W=mg=?Vg
U=1/2QV=1/2CV^2=1/2Q^2/C

12. frequency of spring is proportional to...
Negative
Insulator
Proton or neutron
Spring constant

13. plane mirrors create What type of image
Virtual
Sin=0 cos=1
(mass defect)(speed of light)^2
Beta=

14. open pipe wavelength
?=2L/n
Negative
1/2mv^2
Energy gained by particle with charge of e when moved through one volt

15. beat frequencies for two frequencies differing by 4 Hz
Vo+at
4 Hz
V=kq/r
Conductor

16. conservation of energy law
As speed of fluid increases pressure and potential energy decrease
Minimum frequency of light that will cause emission of an electron
Holds whenever we have a change in energy ?E=?KE+?PE=0
A sin?=n?

17. units for capacitance
I=P/A
Diopters
Farad 1 F= 1 c/v
Increase length increase resistance

18. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
?L=aL?T
Virtual upright smaller
A sin?=n?

19. current of AC
Equilibrium position
Irms=Imax/v2
Mass
Spreading out of light as it passes through a narrow opening

20. parabolic mirror: object in front of focal point
Virtual upright
2
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Farad 1 F= 1 c/v

21. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
Surface
?=m/v kg/m^3 g/ml g/cm^3
Ceq=C1+C2+C3 Veq=V1=V2=V3

22. find energy in circuit
E=Pt
?=2L/n
Mass
Vsin?

23. total horizontal distance traveled by projectile
X=(initial horizontal v)(time in air)
Ceq=C1+C2+C3 Veq=V1=V2=V3
1000 kg/m^3 or 1 g/cm^3
3a=Beta

24. material with low resistance
Conductor
Will never decrease capacitance
Weighted average of the masses of the element
T=rFsin?

25. when spring is at rest
Protons+neutrons
Fnet=0 thus Fg=Fs mg=kx
Angle of incidence=angle of reflection
Substance is more dense then water

26. lever arm is halved what happens to torque
It is halved
Conduction
Slower light will travel
Derive universal gravitation equation

27. osmotic pressure formula
Force applied parallel to objects surface
Splitting of atomic nuclei
MRT
V^2=vo^2+2a?x ?x=1/2(vo+v)t

28. frequency of spring is inversely proportional to...
F=ma
Mass
1/2mv^2
Real inverted

29. power of sound wave
Number of protons in nucleus
Zero resistance
P=IA
?=2L/n

30. Formula for centripetal force
Is equal to gravitational force
?=vk/m=2p??
Slower light will travel
F=mv^2/r

31. Newtons 1st law of motion
700nm -400nm
Sin=0 cos=-1
Centrioles
Body in motion remains in motion unless net force acts upon it

32. buoyant force is due to...
Substance is more dense then water
The liquid itself not the object
Force a molecule of liquid feels toward molecules of some other substance
Buoyant force equals blocks weight

33. visible light wavelength
?x=1/2(v+vo)t
Side opposite From which light originates
Resistor
700nm -400nm

34. intensity of sound
WATTS
C=eoKA/D
Current*voltage
I=P/A

35. speed of the spring
2 times the focal distance
Points away from + and toward -
V=?A
Buoyant force equals blocks weight

36. Find electric potential given electric field
F1/A1=F2/A2
Substance is less dense then water
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
E*r

37. charge on the plates of a capacitor
P=m?v
More rigid material
Number of protons in nucleus
Q=CV

38. for object in SHM E=
Emf is positive
Ceq=C1+C2+C3 Veq=V1=V2=V3
K+U=constant
Equilibrium position

39. a lightbulb in a circuit is a
Sin=0 cos=1
Resistor
Emf is negative
(mass defect)(speed of light)^2

40. The bigger the cross - section of a resistor..
More flow less resistance
V^2=vo^2+2a?x ?x=1/2(vo+v)t
B=
Fusion

41. resistance in series
Virtual
MRT
Req=R1+R2+R3 Veq=V1+V2+V3
Virtual upright smaller

42. charge of gamma particles
F=ma
F=mv^2/r
Vsin?
None

43. kirchhoff's rule -- travel from positive to negative
F=I(L*B)
F=r/2
Emf is negative
?V=BetaV?T

44. resistance equation
Increases
R=pL/A
4 Hz
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

45. density with units
F=Gm1m2/r^2
?=m/v kg/m^3 g/ml g/cm^3
C=eoKA/D
Beta=

46. body in translational equilibrium
No net force acting on it
Force applied parallel to objects surface
F=- kx
More flow less resistance

47. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
F=c/?
F=- kx
U=q?v

48. kirchhoff's rule -- travel from negative to positive
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Emf is positive
Hydrostatics
E=V/d

49. units for power
A sin?=n?
V=???
F=xk=mg
WATTS

50. electric field equation
WATTS
E=kQ/r^2
Decrease in pressure that fluid exerts on the walls of the container
B=