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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. deposition
Gas to solid
E=kQ/r^2
273K 0
Constant for closed system independent of changes in area

2. (+) magnification signifies
Centrioles
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
P=1/f
Upright image

3. Bernoulli's equation
Perpendicular to each other
?L=aL?T
W'=?E=?KE+?U
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

4. surface tension results from
Cohesion
The liquid itself not the object
U=1/2QV=1/2CV^2=1/2Q^2/C
0K -273

5. absolute zero in K and C
U=QV
C=Q/V
Surface
0K -273

6. 90
Sin=1 cos=0
No net force acting on it
None
Dispersion

7. Newtons 2nd law of motion
Number of protons
I=?q/?t
Solute whose solution is conductive
F=ma

8. determine spring constant
Photon energy must be greater than work function of the material
F=xk=mg
Nsin?incident=nsin?refraction
Vo+at

9. suppose a block is floating in H2O - What does this mean
Fnet=0 thus Fg=Fs mg=kx
Buoyant force equals blocks weight
Mass
Pressure to move - voltage when no charge is moving between 2 terminals

10. atomic mass number represents
Protons+neutrons
F=qvBetasin?
Conductor
New/old

11. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
Image is always upright virtual and smaller
Resistor
Virtual

12. total horizontal distance traveled by projectile
1/f=1/o+ 1/i
X=(initial horizontal v)(time in air)
Voltage
Difference between the mass of nucleus and the sum of nucleons

13. light ray that strikes a surface
Incident ray
E=V/d
F=E*A
M1v1=m2v2

14. weight
W=mg=?Vg
V=???
R=pL/A
Real inverted

15. charge of gamma particles
700nm -400nm
Emf is positive
Intensity
None

16. visible light wavelength
700nm -400nm
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
WATTS
Beta=

17. electric flux
F=E*A
Radiation
F=- kx
V=IR

18. momentum
Voltage
P=m?v
None
The shortest wavelength

19. units for power of a lens
Points away from + and toward -
Fs=
Diopters
F=I(L*B)

20. type of heat transfer involving the physical motion of heated material
Convection
Beta=10Log(I/Io)
Real inverted
Will never decrease capacitance

21. mass defect
It jumps to higher energy level
Vo^2+2a(?x)
2pr
Difference between the mass of nucleus and the sum of nucleons

22. electrical power
Is equal to gravitational force
P=IV
None
373K 100

23. work in electromagnetic field
Sin=1 cos=0
Amount of energy required for phase change from solid to liquid
W=qv
Solute whose solution is conductive

24. The bigger the cross - section of a resistor..
E=V/d
More flow less resistance
Beta=
Charge remains constant

25. circumference of a circle
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Work/time
2pr
Derive universal gravitation equation

26. for photoelectric material to liberate an electron
E=Pt
N*s/m^2
Photon energy must be greater than work function of the material
Equilibrium position

27. frequency in string
2pvL/g
Bigger and beyond original object
Proton or neutron
F=nv/2L

28. under constant acceleration - v=
Longitudinal
E=neE n is excess charge
Vo+at
New/old

29. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Dispersion
Conduction
P=m?v
?=2L/n

30. magnitude of magnetic field for current carrying wire
Beta=
As speed of fluid increases pressure and potential energy decrease
More malleable material
Emf is negative

31. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
Radiation
A Calorie is a nutritional term equal to 1000 calories
Diopters

32. Formula for centripetal force
Difference between the absolute and atm pressure Pg=P- Patm
More malleable material
F=mv^2/r
As speed of fluid increases pressure and potential energy decrease

33. degrees to radians
Makes ?G more negative thus more spontaneous
?V=BetaV?T
Degree=p/180 radian
Proton or neutron

34. energy of a photon is dependent on...
It jumps to higher energy level
Minimum frequency of light that will cause emission of an electron
Frequency
C=eoKA/D

35. under constant acceleration - two ways ?x=
Substance is more dense then water
Q=CV
Number of protons
Vot+1/2at^2=(V0+v/2)t

36. diffraction
C=Q/V
Spreading out of light as it passes through a narrow opening
Energy required to free electron from given metal
Fnet=0 thus Fg=Fs mg=kx

37. work as it relates to constant force
Sin=1 cos=0
Number of protons in nucleus
W=Fdcos?
P=IV

38. 0
Gamma decay
Cohesion
Sin=0 cos=1
Fnet=0 thus Fg=Fs mg=kx

39. material with very high resistance
Gas to solid
Makes ?G more negative thus more spontaneous
T=1/f
Insulator

40. period of spring
??=nv/4L
4 Hz
2pvm/k
U=(1/2)kx^2

41. if cell is not driving current
F=mv^2/r
EV
Internal resistance is zero voltage=emf
F1/A1=F2/A2

42. freezing point of H2O in K and C
U=QV
273K 0
Inverted image
Higher temperature increases resistance

43. velocity for a wave
T=1/f
?=m/v kg/m^3 g/ml g/cm^3
P=m?v
V=???

44. Log(1000)=
Low voltage to high voltage
Virtual upright
3
Cohesion

45. light bends away from normal when
N1>n2
F=nv/2L
T=rFsin?
Electric fields of all the light waves are oriented in the same direction

46. frequency of light given wavelength
F=Gm1m2/r^2
F=c/?
B=
F=1/2(r)

47. equation relating heat gained and temperature change
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
E*r
373K 100
Q=mc?t

48. meaning of Bernouili's equation
T=rFsin?
As speed of fluid increases pressure and potential energy decrease
Emf is positive
C=eoKA/D

49. speed of sound in proportional to...
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Vbulk modulus
Coulomb=amphere*sec
Increase length increase resistance

50. power of sound wave
?=2L/n
Fs=
Sin=1/2 cos=v3/2
P=IA