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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. units for power
It is halved
WATTS
Spring constant
F=- F

2. formula for heat gained or lost during phase change
Q=mL
C=e(A/d)
?=vk/m=2p??
None

3. (-) magnification signifies
Nsin?incident=nsin?refraction
Inverted image
I=?q/?t
Incident ray

4. a in isotopic notation
N is proportional to 1/?
Mass number
Bigger and beyond original object
E*r

5. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
Fluid resistance to flow
V=?A
Q=CV

6. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Will never decrease capacitance
Angle of incidence=angle of reflection
Farad 1 F= 1 c/v

7. Ohm's Law
Insulator
F=Gm1m2/r^2
V=IR
P=i^2r

8. (+) magnification signifies
Virtual upright
V=?A
Upright image
None

9. diffraction
Derive universal gravitation equation
Q=CV
Rate of doing work
Spreading out of light as it passes through a narrow opening

10. center of curvature is...
Light travels from high n to lower n with an angle of incidence greater than the critical angle
V^2=vo^2+2a?x ?x=1/2(vo+v)t
F=xk=mg
2 times the focal distance

11. work as product of pressure and volume change
F1/A1=F2/A2
When in parallel
B=(F/A)/(?V/V)
Body in motion remains in motion unless net force acts upon it

12. charge on the plates of a capacitor
Q=CV
The shortest wavelength
Approx .7
Fusion

13. calculate binding energy
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Converted to extra kinetic energy of the emitted electron
Emf is positive
(mass defect)(speed of light)^2

14. find power in circuit
Emf is positive
Buoyant force equals blocks weight
Current*voltage
Energy of electrons

15. what would a specific gravity of 1 indicate
EV
V=???
Substance is less dense then water
100% of the object will be submerged but will not sink

16. relationship between linear thermal expansion and volumetric thermal expansion
E=Pt
A sin?=n?
1/f=1/o+ 1/i
3a=Beta

17. under constant acceleration V(average)=
Number of protons
(Vo+v)/2
E=neE n is excess charge
It jumps to higher energy level

18. angular frequency of spring ?
Decrease in pressure that fluid exerts on the walls of the container
Difference between the mass of nucleus and the sum of nucleons
?=4L/n
?=vk/m=2p??

19. meaning of Bernouili's equation
A=v^2/r
J=Force*Time=mv - mvo=?p
Counterclockwise is + clockwise is -
As speed of fluid increases pressure and potential energy decrease

20. capacitance of simple parallel plate (not according to Ohms)
C=e(A/d)
P=i^2r
Internal resistance is zero voltage=emf
Intensity

21. viscosity
The liquid itself not the object
Counterclockwise is + clockwise is -
Fluid resistance to flow
Bigger and beyond original object

22. intensity of sound
I=P/A
Spreading out of light as it passes through a narrow opening
U=q?v
C=eoKA/D

23. relate focal length and radius of curvature(r)
Diopters
J=Force*Time=mv - mvo=?p
Ceq=C1+C2+C3 Veq=V1=V2=V3
F=r/2

24. velocity for a wave
Ceq=C1+C2+C3 Veq=V1=V2=V3
Force a molecule of liquid feels toward the other molecules of the liquid
Fs=
V=???

25. formula for solution which is diluted related to initial concentration
Mass number
More flow less resistance
Emf is negative
M1v1=m2v2

26. object placed beyond focal point in converging lens create What type of image
Resistor
?x=1/2(v+vo)t
Real inverted
N*s/m^2

27. frequency of spring is inversely proportional to...
Upright image
Mass
Rate of doing work
3a=Beta

28. speed of light in a vacuum (c) =
Side opposite From which light originates
???
Difference between the mass of nucleus and the sum of nucleons
P=1/f

29. find factor by which something has been changed
New/old
Pressure to move - voltage when no charge is moving between 2 terminals
Charge/area
2pr

30. conservation of energy law
Holds whenever we have a change in energy ?E=?KE+?PE=0
1000 kg/m^3 or 1 g/cm^3
?=vk/m=2p??
W=qv

31. tone with shortest period has
The shortest wavelength
F=Gm1m2/r^2
Force a molecule of liquid feels toward molecules of some other substance
Intensity

32. speed of the spring
V=?A
Number of protons
None
Sin=0 cos=1

33. What is heat of fusion
Amount of energy required for phase change from solid to liquid
W=qv
??=nv/4L
Gas to solid

34. magnetic force
None
F=qvBetasin?
Internal resistance is zero voltage=emf
2pr

35. speed of sound in proportional to...
Number of protons in nucleus
P=IV
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Vbulk modulus

36. Bernoulli's equation
?=2L/n
V=kQ/r
V/??
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

37. specific gravity greater than one
2
Substance is more dense then water
N2>n1
Yield strength

38. ?
Convection
Surface
Charge/length
Minimum frequency of light that will cause emission of an electron

39. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
Sin=1 cos=0
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Real image

40. 90
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Sin=1 cos=0
?x=1/2(v+vo)t
Is equal to gravitational force

41. photoelectric effect
???
More flow less resistance
Inverted image
Incident light is used to free electrons from a metal

42. Newtons 1st law of motion
Sin=0 cos=1
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Body in motion remains in motion unless net force acts upon it
Minimum frequency of light that will cause emission of an electron

43. gravitational force formula
F=Gm1m2/r^2
Points away from + and toward -
F=nv/2L
F=xk=mg

44. snells law
Nsin?incident=nsin?refraction
A Calorie is a nutritional term equal to 1000 calories
Req=R1+R2+R3 Veq=V1+V2+V3
V=IR

45. magnitude of current
Surface
20 Hz to 20 -000 Hz
Gamma decay
I=?q/?t

46. potential energy of spring
0K -273
Decrease in pressure that fluid exerts on the walls of the container
U=(1/2)kx^2
Number of protons in nucleus

47. closed pipe wavelength
As speed of fluid increases pressure and potential energy decrease
?=4L/n
Light emitted due to heat
T=rF where F is proportional to mass and r is distance from pivot

48. incandescence
Light emitted due to heat
T=rF where F is proportional to mass and r is distance from pivot
Photon energy must be greater than work function of the material
Side opposite From which light originates

49. light bends away from normal when
Irms=Imax/v2
Nsin?incident=nsin?refraction
N1>n2
Sin=0 cos=1

50. parabolic mirror: image at focal point
No image is formed
Surface
Side opposite From which light originates
Number of protons in nucleus

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MCAT Physics Formulas

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