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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. When is torque maximum
When ?=90 b/c sin90=1
20 Hz to 20 -000 Hz
J=Force*Time=mv - mvo=?p
?V=BetaV?T

2. find energy in circuit
When in parallel
E=Pt
2pvm/k
A Calorie is a nutritional term equal to 1000 calories

3. unit of current
Spring constant
Zero resistance
Internal resistance is zero voltage=emf
Ampere (1C/s)

4. dynamic pressure
Coulomb=amphere*sec
(1/2)?v^2
Zero resistance
P=IV

5. Hooke's Law
Farad 1 F= 1 c/v
0K -273
F=- kx
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

6. type of image ALWAYS created by diverging (convex) mirror
2pr
F=I(L*B)
Constant for closed system independent of changes in area
Virtual upright smaller

7. weight
Real image
Intensity
F=- F
W=mg=?Vg

8. lever arm is halved what happens to torque
Internal resistance is zero voltage=emf
It is halved
Degree=p/180 radian
Equilibrium position

9. (+) magnification signifies
Upright image
(mass defect)(speed of light)^2
Conductor
Radiation

10. dielectric material
Negative
Will never decrease capacitance
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Fk=

11. resistance in parallel
?V=BetaV?T
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
?L=aL?T
Incident ray

12. specific gravity greater than one
Real image
Minimum frequency of light that will cause emission of an electron
Substance is more dense then water
When in parallel

13. electrical power
Q=mL
Incident light is used to free electrons from a metal
P=IV
20 Hz to 20 -000 Hz

14. (-) magnification signifies
F=I(L*B)
Inverted image
Centrioles
Hydrostatics

15. sound waves are what kind of waves
U=q?v
Longitudinal
Number of protons in nucleus
E=neE n is excess charge

16. energy of photon
E=???=hc/?
Moving charge
F=Gm1m2/r^2
T=1/f

17. specific gravity is less than one
Zero resistance
Counterclockwise is + clockwise is -
V=???
Substance is less dense then water

18. Capacitors in series
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Cohesion
Image is always upright virtual and smaller
U=1/2QV=1/2CV^2=1/2Q^2/C

19. wavelength in string
?=2L/n
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Virtual upright smaller
Frequency

20. electric field maximum of insulating sphere
1/2mv^2
Mass number
Energy gained by particle with charge of e when moved through one volt
Surface

21. a virtual image has what kind of image distance
Force applied parallel to objects surface
Negative
Force a molecule of liquid feels toward molecules of some other substance
??=nv/4L

22. electrolyte
New/old
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Solute whose solution is conductive
Difference between the absolute and atm pressure Pg=P- Patm

23. Bernoulli's equation
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Wave speed
N2>n1
T=1/f

24. relate focal length and radius of curvature(r)
Upright image
V=???
Vo^2+2a(?x)
F=r/2

25. work in electromagnetic field
Radiation
(1/2)?v^2
Frequency
W=qv

26. units for power of a lens
Approx .7
Diopters
EV
2

27. magnetic field force on current carrying wire
Force applied parallel to objects surface
Angle of incidence=angle of reflection
F=I(L*B)
No image is formed

28. period of pendulum
More rigid material
Insulator
MRT
2pvL/g

29. loudness of sound
V=???
C=e(A/d)
Intensity
C=Q/V

30. When does turbulence in a fluid arise
F=q/e0
X=(initial horizontal v)(time in air)
F=Gm1m2/r^2
When velocity of the fluid exceeds critical velocity

31. surface tension results from
Farad 1 F= 1 c/v
Cohesion
Will never decrease capacitance
20 Hz to 20 -000 Hz

32. bulk modulus
Substance is more dense then water
Points away from + and toward -
B=(F/A)/(?V/V)
E=V/d

33. total energy of spring system
Perpendicular to each other
N=c/v
E=1/2k(A^2)
W=qv

34. Find electric potential given electric field
4 Hz
None
Negative
E*r

35. type of heat transfer involving transfer of energy by electromagnetic waves
P=IA
Diopters
The liquid itself not the object
Radiation

36. density of water
Difference between the absolute and atm pressure Pg=P- Patm
Fluid resistance to flow
N is proportional to 1/?
1000 kg/m^3 or 1 g/cm^3

37. torque formula
Makes ?G more negative thus more spontaneous
T=rFsin?
F=E*A
Wave speed

38. torque is given by
T=rF where F is proportional to mass and r is distance from pivot
Emf is positive
Zero resistance
Beta=

39. equation for v between two parallel plates
V=ED
A Calorie is a nutritional term equal to 1000 calories
C=eoKA/D
None

40. what would a specific gravity of 1 indicate
Splitting of atomic nuclei
Internal resistance is zero voltage=emf
Radiation
100% of the object will be submerged but will not sink

41. capacitors in parallel
Difference between the absolute and atm pressure Pg=P- Patm
As speed of fluid increases pressure and potential energy decrease
Ceq=C1+C2+C3 Veq=V1=V2=V3
2 times the focal distance

42. deposition
P=i^2r
Energy gained by particle with charge of e when moved through one volt
Gas to solid
C=Q/V

43. angular frequency of spring ?
Light emitted due to heat
?=vk/m=2p??
Inverted image
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

44. atomic mass number represents
P=IA
Protons+neutrons
?=4L/n
E=neE n is excess charge

45. 30
Virtual upright
(1/2)?v^2
Sin=1/2 cos=v3/2
2 times the focal distance

46. speed of light in a vacuum (c) =
P=IV
WATTS
???
image/object

47. open pipe frequency
3
Photon energy must be greater than work function of the material
F=nv/2L
Real image

48. period (T) and frequency (f) of a tone are related by
T=1/f
Ampere (1C/s)
Incident ray
C=e(A/d)

49. kirchhoff's rule -- travel from negative to positive
Force applied parallel to objects surface
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Holds whenever we have a change in energy ?E=?KE+?PE=0
Emf is positive

50. incandescence
Difference between the mass of nucleus and the sum of nucleons
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Work/time
Light emitted due to heat

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MCAT Physics Formulas

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