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MCAT Physics Formulas

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. magnification=
image/object
Hydrostatics
(1/2)?v^2
When in parallel

2. Newtons 2nd law of motion
F=ma
MRT
Moving charge
F=nv/2L

3. lever arm is halved what happens to torque
Resistor
V=IR
It is halved
Negative

4. process of combing smaller nuclei to create larger nuclei
Virtual upright
Photon energy must be greater than work function of the material
Fusion
Charge/length

5. threshold frequency (photoelectric effect)
Sin=0 cos=-1
None
None
Minimum frequency of light that will cause emission of an electron

6. horizontal velocity of projectile
Light travels from high n to lower n with an angle of incidence greater than the critical angle
373K 100
Vcos?
3a=Beta

7. adhesion
Buoyant force equals blocks weight
Force a molecule of liquid feels toward molecules of some other substance
Side opposite From which light originates
When velocity of the fluid exceeds critical velocity

8. s
N1>n2
Negative
Increase length increase resistance
Charge/area

9. volume thermal expansion of a solid
V=IR
?V=BetaV?T
Nsin?incident=nsin?refraction
Spring constant

10. find power in circuit
Current*voltage
???
Resistor
?=4L/n

11. absolute zero in K and C
?L=aL?T
0K -273
2pvL/g
WATTS

12. gravitational force formula
Virtual upright
Hydrostatics
F=mv^2/r
F=Gm1m2/r^2

13. voltage of AC
P=IV
Vrms=Vmax/v2
Difference between the mass of nucleus and the sum of nucleons
1/f=1/o+ 1/i

14. atoms atomic number represents
Sin=1 cos=0
U=QV
Proton or neutron
Number of protons in nucleus

15. magnetic field force on current carrying wire
Conductor
F=I(L*B)
M1v1=m2v2
V=IR

16. focal length
?x=1/2(v+vo)t
1/f=1/o+ 1/i
V/??
Sin=v3/2 cos=1/2

17. frequency in string
F=nv/2L
Vo^2+2a(?x)
Force a molecule of liquid feels toward the other molecules of the liquid
?=2L/n

18. energy of photon
100% of the object will be submerged but will not sink
V=kQ/r
A=v^2/r
E=???=hc/?

19. open pipe frequency
Higher temperature increases resistance
None
F=nv/2L
Irms=Imax/v2

20. continuity equation*
P=1/f
N2>n1
0K -273
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

21. a in isotopic notation
Zero resistance
Side opposite From which light originates
Solute whose solution is conductive
Mass number

22. (-) magnification signifies
Slower light will travel
Beta=10Log(I/Io)
F/A
Inverted image

23. magnetic field is created by loop wire - What is magnetic field at center of loop
Substance is more dense then water
Beta=
Diopters
C=eoKA/D

24. type of image ALWAYS created by diverging (convex) mirror
Resistor
Virtual upright smaller
F=c/?
I=P/A

25. center of curvature is...
2 times the focal distance
Ampere (1C/s)
Substance is more dense then water
Protons+neutrons

26. frequency of spring is inversely proportional to...
Virtual upright
V=IR
Mass
U=QV

27. electric work
Virtual upright
Sin=0 cos=1
N=c/v
U=q?v

28. power of sound wave
Force a molecule of liquid feels toward molecules of some other substance
100% of the object will be submerged but will not sink
P=IA
Conductor

29. Log(100)=
Yield strength
When velocity of the fluid exceeds critical velocity
Force a molecule of liquid feels toward the other molecules of the liquid
2

30. equation relating heat gained and temperature change
Q=mc?t
P=IA
F=nv/2L
Vrms=Vmax/v2

31. energy of moving proton
Degree=p/180 radian
U=QV
V^2=vo^2+2a?x ?x=1/2(vo+v)t
1/2mv^2

32. conservation of energy law
?=2L/n
Holds whenever we have a change in energy ?E=?KE+?PE=0
More rigid material
P=IA

33. for photoelectric material to liberate an electron
Kg*m/s^2
4 Hz
Photon energy must be greater than work function of the material
Difference between the absolute and atm pressure Pg=P- Patm

34. type of heat transfer involving the physical motion of heated material
Convection
No image is formed
EV
Conduction

35. Gauss's Law
F=xk=mg
F=q/e0
Pascal (Pa) N/m^2
V/??

36. formula for heat gained or lost during phase change
Q=mL
Yield strength
Vot+1/2at^2=(V0+v/2)t
P=i^2R=V^2/R=IV

37. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
Diopters
Intensity
?=2L/n

38. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
F=1/2(r)
T=rF where F is proportional to mass and r is distance from pivot
N=c/v

39. temperature and resistors
Higher temperature increases resistance
P=i^2r
Counterclockwise is + clockwise is -
Energy of electrons

40. cohesion
T=rFsin?
Higher temperature increases resistance
N2>n1
Force a molecule of liquid feels toward the other molecules of the liquid

41. What is heat of fusion
WATTS
Incident light is used to free electrons from a metal
Emf is positive
Amount of energy required for phase change from solid to liquid

42. determine spring constant
Upright image
Equilibrium position
Force a molecule of liquid feels toward molecules of some other substance
F=xk=mg

43. parabolic mirror: object between c and f - image is...
V=ED
Bigger and beyond original object
Fusion
Diopters

44. youngs modulus
2
Y=(F/A)/(?L/L) stress over strain
Sin=v3/2 cos=1/2
F1/A1=F2/A2

45. work in electromagnetic field
W=qv
Pressure to move - voltage when no charge is moving between 2 terminals
1000 kg/m^3 or 1 g/cm^3
Inverted image

46. electrical power
Emf is negative
P=IV
V=?A
F=qvBetasin?

47. Capacitors in series
Hydrostatics
Beta=
Minimum frequency of light that will cause emission of an electron
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

48. index of refraction (n) equation
Perpendicular to each other
V=???
N=c/v
Internal resistance is zero voltage=emf

49. -Beta- decay
Neutron is converted into a proton and an electron is emitted
Force a molecule of liquid feels toward the other molecules of the liquid
Sin=1 cos=0
N2>n1

50. v2/2
Coulomb=amphere*sec
Increases
Approx .7
Charge/area