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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. material with very high resistance
Vo+at
Insulator
0K -273
F=xk=mg

2. electrical power
When ?=90 b/c sin90=1
P=IV
373K 100
A sin?=n?

3. reflection law
Req=R1+R2+R3 Veq=V1+V2+V3
E=neE n is excess charge
Angle of incidence=angle of reflection
Converted to extra kinetic energy of the emitted electron

4. focal for spherical mirrors
Beta=
F=1/2(r)
Resistor
Coulomb=amphere*sec

5. find voltage (original)
F=c/?
V=kq/r
Fs=
Number of protons in nucleus

6. center of curvature is...
2 times the focal distance
Image is always upright virtual and smaller
Negative
Electric fields of all the light waves are oriented in the same direction

7. visible light wavelength
Real inverted image
700nm -400nm
Dispersion
1/2mv^2

8. buoyant force is due to...
E=kQ/r^2
W=mg=?Vg
Weighted average of the masses of the element
The liquid itself not the object

9. body in translational equilibrium
No net force acting on it
Sin=0 cos=-1
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Increases

10. snell's law derivative
N is proportional to 1/?
More malleable material
Low voltage to high voltage
Sin=1 cos=0

11. charge of beta particles
Radiation
Negative
Fk=
Ampere (1C/s)

12. pressure
F=c/?
Makes ?G more negative thus more spontaneous
Emf is negative
F/A

13. determine spring constant
Frequency
Points away from + and toward -
273K 0
F=xk=mg

14. degrees to radians
F=r/2
?=2L/n
When ?=90 b/c sin90=1
Degree=p/180 radian

15. index of refraction (n) equation
Force a molecule of liquid feels toward the other molecules of the liquid
1/2mv^2
Pascal (Pa) N/m^2
N=c/v

16. units for viscosity
Coulomb=amphere*sec
Sin=v3/2 cos=1/2
Charge/area
N*s/m^2

17. when unlike charges move away from each other - U of the system
Increases
Vrms=Vmax/v2
N=c/v
E=Pt

18. nucleon
Vot+1/2at^2=(V0+v/2)t
Proton or neutron
B=
?V=BetaV?T

19. equation for static friction
Bigger and beyond original object
Fs=
Insulator
P=1/f

20. 30
Sin=1/2 cos=v3/2
Negative
Vcos?
Number of protons

21. Bernoulli's equation
None
Frequency
T=rFsin?
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

22. relationship between linear thermal expansion and volumetric thermal expansion
2 times the focal distance
Resistor
P=i^2R=V^2/R=IV
3a=Beta

23. when spring is at rest
Emf is negative
More malleable material
More flow less resistance
Fnet=0 thus Fg=Fs mg=kx

24. v2/2
Approx .7
Beta=
?=vk/m=2p??
Q=CV

25. z in isotopic notation
Ceq=C1+C2+C3 Veq=V1=V2=V3
Q=mL
I=P/A
Number of protons

26. total energy of spring system
U=q?v
Frequency
When ?=90 b/c sin90=1
E=1/2k(A^2)

27. current of AC
Yield strength
V=?A
Irms=Imax/v2
Splitting of atomic nuclei

28. 0
Sin=1 cos=0
?=4L/n
More malleable material
Sin=0 cos=1

29. viscosity
C=eoKA/D
Fluid resistance to flow
Beta=
Wave speed

30. process of combing smaller nuclei to create larger nuclei
3
Fusion
More malleable material
F=- F

31. frequency of light given wavelength
Spring constant
J=Force*Time=mv - mvo=?p
(Vo+v)/2
F=c/?

32. youngs modulus
Insulator
Y=(F/A)/(?L/L) stress over strain
?V=BetaV?T
Converted to extra kinetic energy of the emitted electron

33. continuity equation*
Fk=
?=vk/m=2p??
Pressure to move - voltage when no charge is moving between 2 terminals
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

34. planet orbiting a star - centripetal force
Force a molecule of liquid feels toward the other molecules of the liquid
F=Gm1m2/r^2
Is equal to gravitational force
Charge remains constant

35. electric field maximum of insulating sphere
P=i^2r
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Surface
V=?A

36. dielectric material
Virtual upright
Ceq=C1+C2+C3 Veq=V1=V2=V3
Will never decrease capacitance
?x=1/2(v+vo)t

37. magnetic field is created by loop wire - What is magnetic field at center of loop
It is halved
Beta=
?=m/v kg/m^3 g/ml g/cm^3
Light emitted due to heat

38. energy of a photon is dependent on...
Gamma decay
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Frequency
Coulomb=amphere*sec

39. magnitude of magnetic field for current carrying wire
New/old
Beta=
Makes ?G more negative thus more spontaneous
F=q/e0

40. wavelength in string
Holds whenever we have a change in energy ?E=?KE+?PE=0
Sin=1 cos=0
?=2L/n
Inverted image

41. plane mirrors create What type of image
Virtual upright smaller
V=kQ/r
Energy of electrons
Virtual

42. work done by non conservative force

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43. speed of light in a vacuum (c) =
Frequency
???
B=
B=(F/A)/(?V/V)

44. adhesion
Force a molecule of liquid feels toward molecules of some other substance
A sin?=n?
Minimum frequency of light that will cause emission of an electron
Force and acceleration

45. What is heat of fusion
2pvm/k
Amount of energy required for phase change from solid to liquid
More flow less resistance
???

46. formula for solution which is diluted related to initial concentration
M1v1=m2v2
Approx .7
A Calorie is a nutritional term equal to 1000 calories
U=q?v

47. speed of the spring
W=mg=?Vg
Fk=
V=?A
More rigid material

48. meaning of Bernouili's equation
1/f=1/o+ 1/i
As speed of fluid increases pressure and potential energy decrease
V=IR
V=???

49. equation for capacitance with dielectric
Vo+at
C=eoKA/D
F=I(L*B)
Number of protons

50. in calculating torque - which direction is + and which is
?=2L/n
P=IA
Counterclockwise is + clockwise is -
Protons+neutrons