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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. work in electromagnetic field
W=qv
273K 0
Sin=v2/2 cos=v2/2
Points away from + and toward -

2. horizontal velocity of projectile
Fluid resistance to flow
Vcos?
Q=mc?t
700nm -400nm

3. electric flux
Derive universal gravitation equation
F=E*A
N*s/m^2
F=nv/2L

4. ?
Beta=
Substance is more dense then water
Equilibrium position
Charge/length

5. in calculating torque - which direction is + and which is
X=(initial horizontal v)(time in air)
Counterclockwise is + clockwise is -
3
Fusion

6. torque formula
T=rFsin?
Proton or neutron
Irms=Imax/v2
N1>n2

7. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
2
Surface
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

8. increasing emf has What effect on ?G
Light emitted due to heat
Substance is more dense then water
Makes ?G more negative thus more spontaneous
Force a molecule of liquid feels toward the other molecules of the liquid

9. In what position does spring has its greatest speed
Equilibrium position
Sin=1/2 cos=v3/2
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Fk=

10. determine spring constant
F=xk=mg
It jumps to higher energy level
C=e(A/d)
A=v^2/r

11. 0
F=Gm1m2/r^2
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Vo^2+2a(?x)
Sin=0 cos=1

12. v2/2
Fluid resistance to flow
Approx .7
Splitting of atomic nuclei
F=mv^2/r

13. wave velocity=
F=- F
None
T=1/f
???

14. 45
20 Hz to 20 -000 Hz
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
As speed of fluid increases pressure and potential energy decrease
Sin=v2/2 cos=v2/2

15. potential energy of spring
Vrms=Vmax/v2
Real inverted image
(mass defect)(speed of light)^2
U=(1/2)kx^2

16. circumference of a circle
Convection
Farad 1 F= 1 c/v
2pr
Substance is less dense then water

17. center of curvature is...
Q=CV
W=mg=?Vg
(1/2)?v^2
2 times the focal distance

18. magnetic force
F=qvBetasin?
V/??
?=2L/n
Resistor

19. study of fluids at rest
Minimum frequency of light that will cause emission of an electron
Hydrostatics
Negative
J=Force*Time=mv - mvo=?p

20. wavelength in string
?=2L/n
Will never decrease capacitance
Diopters
Angle of incidence=angle of reflection

21. work function
Bigger and beyond original object
(1/2)?v^2
Energy required to free electron from given metal
Diopters

22. Bernoulli's equation
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
New/old
?=m/v kg/m^3 g/ml g/cm^3

23. power (in general)
Fnet=0 thus Fg=Fs mg=kx
Work/time
P=i^2R=V^2/R=IV
E*r

24. units for power of a lens
Diopters
W=Fdcos?
P=m?v
Beta=

25. atoms atomic number represents
Zero resistance
E*r
Number of protons in nucleus
Spreading out of light as it passes through a narrow opening

26. loudness of sound
F=Gm1m2/r^2
Holds whenever we have a change in energy ?E=?KE+?PE=0
Solid to gas
Intensity

27. to find acceleration due to gravity
C=Q/V
Derive universal gravitation equation
Convection
U=1/2QV=1/2CV^2=1/2Q^2/C

28. atomic mass number represents
Frequency
Counterclockwise is + clockwise is -
Protons+neutrons
N*s/m^2

29. Log(100)=
2
Force a molecule of liquid feels toward molecules of some other substance
T=rF where F is proportional to mass and r is distance from pivot
Force a molecule of liquid feels toward the other molecules of the liquid

30. parabolic mirror: object between c and f - image is...
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Bigger and beyond original object
Incident ray
P=i^2r

31. across capacitor what remains constant
2
Perpendicular to each other
N1>n2
Voltage

32. magnification=
C=Q/V
image/object
V=ED
I=P/A

33. when an electron absorbs a photon
Internal resistance is zero voltage=emf
Fluid resistance to flow
Difference between the mass of nucleus and the sum of nucleons
It jumps to higher energy level

34. solves for power lost during transmission (one way)
Number of protons in nucleus
Q=mL
?V=BetaV?T
P=i^2r

35. degrees to radians
Degree=p/180 radian
Coulomb=amphere*sec
Centrioles
Beta=10Log(I/Io)

36. formula for impulse (J)
Yield strength
P=m?v
J=Force*Time=mv - mvo=?p
Nsin?incident=nsin?refraction

37. beat frequencies for two frequencies differing by 4 Hz
Sin=0 cos=-1
Vot+1/2at^2=(V0+v/2)t
Incident light is used to free electrons from a metal
4 Hz

38. speed of light in a vacuum (c) =
Energy gained by particle with charge of e when moved through one volt
Emf is negative
Spreading out of light as it passes through a narrow opening
???

39. magnetic field force on current carrying wire
F=I(L*B)
N=c/v
Zero resistance
U=q?v

40. large moduli value
More rigid material
?=4L/n
Low voltage to high voltage
W'=?E=?KE+?U

41. voltage of AC
Cohesion
Vrms=Vmax/v2
4 Hz
EV

42. index of refraction (n) equation
2pr
N=c/v
Sin=1 cos=0
Hydrostatics

43. vertical velocity of projectile
Negative
Vsin?
Slower light will travel
Protons+neutrons

44. bulk modulus
B=(F/A)/(?V/V)
373K 100
F=E*A
More malleable material

45. current of AC
The liquid itself not the object
Energy gained by particle with charge of e when moved through one volt
Irms=Imax/v2
Vot+1/2at^2=(V0+v/2)t

46. force experience by stationary particle in magnetic field
?=vk/m=2p??
None
N1>n2
R=pL/A

47. force due to electric field on single charge
Neutron is converted into a proton and an electron is emitted
E=neE n is excess charge
Charge/area
Resistor

48. light bends away from normal when
P=i^2R=V^2/R=IV
Energy required to free electron from given metal
N1>n2
Number of protons in nucleus

49. stays constant when light travels through boundary
Frequency
F=qvBetasin?
Substance is more dense then water
Negative

50. 60
Ceq=C1+C2+C3 Veq=V1=V2=V3
P=IV
W=mg=?Vg
Sin=v3/2 cos=1/2