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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.
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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. energy of moving proton
20 Hz to 20 -000 Hz
1/2mv^2
More malleable material
Hydrostatics

2. adhesion
Q=CV
Force a molecule of liquid feels toward molecules of some other substance
F=r/2
F=ma

3. torque formula
?=4L/n
As speed of fluid increases pressure and potential energy decrease
Incident light is used to free electrons from a metal
T=rFsin?

4. pressure
Frequency
Holds whenever we have a change in energy ?E=?KE+?PE=0
F/A
X=(initial horizontal v)(time in air)

5. Formula for centripetal force
F=- F
Yield strength
F=mv^2/r
Spreading out of light as it passes through a narrow opening

6. equation for capacitance with dielectric
Internal resistance is zero voltage=emf
C=Q/V
C=eoKA/D
Equilibrium position

7. electric field maximum of insulating sphere
B=
Bigger and beyond original object
Surface
Equilibrium position

8. parabolic mirror: image at focal point
Charge/area
No image is formed
Difference between the mass of nucleus and the sum of nucleons
100% of the object will be submerged but will not sink

9. v2/2
Approx .7
F=c/?
P=i^2r
Vcos?

10. capacitors in parallel
Ceq=C1+C2+C3 Veq=V1=V2=V3
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
F=nv/2L
Current*voltage

11. a in isotopic notation
F=- F
Increases
Mass number
C=Q/V

12. closed pipe frequency
Real inverted image
??=nv/4L
Vo^2+2a(?x)
Work/time

13. potential energy of spring
Sin=0 cos=1
More rigid material
???
U=(1/2)kx^2

14. to find acceleration due to gravity
Derive universal gravitation equation
1/f=1/o+ 1/i
1000 kg/m^3 or 1 g/cm^3
Energy of electrons

15. intensity of sound
Holds whenever we have a change in energy ?E=?KE+?PE=0
Force and acceleration
?L=aL?T
I=P/A

16. magnetic field of solenoid
Real image
Pressure to move - voltage when no charge is moving between 2 terminals
Moving charge
B=

17. -Beta- decay
Neutron is converted into a proton and an electron is emitted
None
J=Force*Time=mv - mvo=?p
U=QV

18. open pipe wavelength
?=2L/n
A=v^2/r
When in parallel
Current*voltage

19. 45
Real image
Sin=v2/2 cos=v2/2
4 Hz
2 times the focal distance

20. magnetic field force on current carrying wire
Sin=0 cos=-1
F=I(L*B)
Constant for closed system independent of changes in area
Bigger and beyond original object

21. large moduli value
More rigid material
A=v^2/r
Intensity
Will never decrease capacitance

22. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
B=
Conduction
2 times the focal distance
Bigger and beyond original object

23. energy of photon
E=???=hc/?
?=m/v kg/m^3 g/ml g/cm^3
2 times the focal distance
J=Force*Time=mv - mvo=?p

24. reflection law
Virtual upright smaller
Beta=
F=q/e0
Angle of incidence=angle of reflection

25. incandescence
Vsin?
Yield strength
E=Pt
Light emitted due to heat

26. When is voltage constant across capacitors
Increase length increase resistance
Gas to solid
When in parallel
Conduction

27. work as it relates to constant force
Angle of incidence=angle of reflection
Real inverted
F=- kx
W=Fdcos?

28. electromotive force
???
Pressure to move - voltage when no charge is moving between 2 terminals
F1/A1=F2/A2
W=Fdcos?

29. planet orbiting a star - centripetal force
None
Is equal to gravitational force
Constant for closed system independent of changes in area
Nsin?incident=nsin?refraction

30. wavelength in string
Points away from + and toward -
Incident ray
C=e(A/d)
?=2L/n

31. object placed beyond focal point in converging lens create What type of image
Frequency
N is proportional to 1/?
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Real inverted

32. capacitance equation in circuit
R=pL/A
F=ma
C=Q/V
None

33. buoyant force is due to...
Coulomb=amphere*sec
The liquid itself not the object
Points away from + and toward -
Virtual upright

34. focal length
Solid to gas
Y=(F/A)/(?L/L) stress over strain
1/f=1/o+ 1/i
A sin?=n?

35. plane mirrors create What type of image
Q=mL
Substance is more dense then water
Increases
Virtual

36. sound level
Fluid resistance to flow
700nm -400nm
Wave speed
Beta=10Log(I/Io)

37. When does turbulence in a fluid arise
When velocity of the fluid exceeds critical velocity
Will never decrease capacitance
V/??
C=e(A/d)

38. (+) magnification signifies
2pvL/g
???
EV
Upright image

39. calculate lens power
T=1/f
P=1/f
F=ma
N1>n2

40. snell's law derivative
N is proportional to 1/?
Increases
Current*voltage
EV

41. frequency of spring is proportional to...
Ceq=C1+C2+C3 Veq=V1=V2=V3
Spring constant
W'=?E=?KE+?U
4 Hz

42. total horizontal distance traveled by projectile
Protons+neutrons
Equilibrium position
X=(initial horizontal v)(time in air)
???

43. image created when converging (concave) mirror when object is placed beyond focal point
Perpendicular to each other
Real inverted image
2pvL/g
M1v1=m2v2

44. relate focal length and radius of curvature(r)
Frequency
P=1/f
Y=(F/A)/(?L/L) stress over strain
F=r/2

45. index of refraction (n) equation
C=eoKA/D
Buoyant force equals blocks weight
N=c/v
W=Fdcos?

46. magnitude of current
V/??
N*s/m^2
Perpendicular to each other
I=?q/?t

47. kirchhoff's rule -- travel from positive to negative
Perpendicular to each other
Fs=
Sin=v2/2 cos=v2/2
Emf is negative

48. study of fluids at rest
N1>n2
Fs=
F=ma
Hydrostatics

49. body in translational equilibrium
Rate of doing work
No net force acting on it
3
E*r

50. light bends toward normal when
Substance is more dense then water
Beta=
N2>n1
Internal resistance is zero voltage=emf

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MCAT Physics Formulas

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