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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. plane mirrors create What type of image
Fs=
2pvm/k
Virtual
Mass

2. magnitude of current
P=IA
I=?q/?t
Image is always upright virtual and smaller
Increases

3. (+) magnification signifies
Upright image
A Calorie is a nutritional term equal to 1000 calories
A sin?=n?
Resistor

4. mirror image is on same side as object
V=???
Holds whenever we have a change in energy ?E=?KE+?PE=0
Q=mL
Real image

5. electric field of parallel plate capacitor
E=V/d
Vrms=Vmax/v2
Pascal (Pa) N/m^2
Q=CV

6. thermal expansion of a solid
Solid to gas
N=c/v
Body in motion remains in motion unless net force acts upon it
?L=aL?T

7. Formula for centripetal force
Longitudinal
Upright image
Vo^2+2a(?x)
F=mv^2/r

8. increase in velocity of a fluid is associated with
F=nv/2L
N1>n2
Weighted average of the masses of the element
Decrease in pressure that fluid exerts on the walls of the container

9. electric field and magnetic field are...
Protons+neutrons
Bigger and beyond original object
More malleable material
Perpendicular to each other

10. osmotic pressure formula
MRT
Substance is less dense then water
No image is formed
F=mv^2/r

11. What is heat of fusion
K+U=constant
???
Amount of energy required for phase change from solid to liquid
F=1/2(r)

12. energy of a photon is dependent on...
U=1/2QV=1/2CV^2=1/2Q^2/C
E=1/2k(A^2)
Frequency
Charge/length

13. work in electromagnetic field
Hydrostatics
E=Pt
W=qv
F=q/e0

14. kirchhoff's rule -- travel from positive to negative
Intensity
Emf is negative
E=neE n is excess charge
P=m?v

15. fission
Virtual upright smaller
Sin=v3/2 cos=1/2
Splitting of atomic nuclei
Charge remains constant

16. resistance in series
Req=R1+R2+R3 Veq=V1+V2+V3
Decrease in pressure that fluid exerts on the walls of the container
Light travels from high n to lower n with an angle of incidence greater than the critical angle
2pvm/k

17. type of heat transfer involving transfer of energy by electromagnetic waves
Fk=
Q=mc?t
Radiation
2pvm/k

18. object placed inside focal point in converging lens create What type of image
2pr
Virtual upright
F=Gm1m2/r^2
Q=mc?t

19. freezing point of H2O in K and C
273K 0
(mass defect)(speed of light)^2
W'=?E=?KE+?U
EV

20. direction of electric field created by charge
Points away from + and toward -
Amount of energy required for phase change from solid to liquid
Constant for closed system independent of changes in area
Pressure to move - voltage when no charge is moving between 2 terminals

21. sound level
F=nv/2L
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Beta=10Log(I/Io)
C=e(A/d)

22. focal for spherical mirrors
F=1/2(r)
A=v^2/r
Charge remains constant
Neutron is converted into a proton and an electron is emitted

23. temperature and resistors
Radiation
Equilibrium position
Higher temperature increases resistance
Real inverted image

24. magnetic field of solenoid
Emf is negative
?=2L/n
E=neE n is excess charge
B=

25. horizontal velocity of projectile
N=c/v
V=kQ/r
Vcos?
700nm -400nm

26. location of minima in diffraction pattern
A sin?=n?
Wave speed
V/??
1000 kg/m^3 or 1 g/cm^3

27. index of refraction (n) equation
U=q?v
Difference between the absolute and atm pressure Pg=P- Patm
N=c/v
Splitting of atomic nuclei

28. object placed beyond focal point in converging lens create What type of image
Real inverted
N=c/v
?x=1/2(v+vo)t
Yield strength

29. determine spring constant
F=xk=mg
F1/A1=F2/A2
New/old
P=IA

30. all harmonics have the same
A=v^2/r
Virtual upright
Wave speed
Substance is more dense then water

31. (-) magnification signifies
Inverted image
F=qvBetasin?
V=kQ/r
K+U=constant

32. shear
Force applied parallel to objects surface
Angle of incidence=angle of reflection
Q=mL
Req=R1+R2+R3 Veq=V1+V2+V3

33. torque is given by
T=rF where F is proportional to mass and r is distance from pivot
E=kQ/r^2
F=ma
Difference between the absolute and atm pressure Pg=P- Patm

34. threshold frequency (photoelectric effect)
Vbulk modulus
Light travels from high n to lower n with an angle of incidence greater than the critical angle
It is halved
Minimum frequency of light that will cause emission of an electron

35. As current flows through a resistor
Higher temperature increases resistance
E=???=hc/?
Energy gained by particle with charge of e when moved through one volt
Charge remains constant

36. -Beta- decay
Force a molecule of liquid feels toward the other molecules of the liquid
Neutron is converted into a proton and an electron is emitted
Hydrostatics
A=v^2/r

37. gauge pressure in relation to the others
4 Hz
Difference between the absolute and atm pressure Pg=P- Patm
I=P/A
F=E*A

38. density with units
Energy required to free electron from given metal
F=Gm1m2/r^2
Centrioles
?=m/v kg/m^3 g/ml g/cm^3

39. parabolic mirror: object between c and f - image is...
700nm -400nm
F=nv/2L
E=V/d
Bigger and beyond original object

40. light bends toward normal when
No image is formed
None
E=Pt
N2>n1

41. sound waves are what kind of waves
X=(initial horizontal v)(time in air)
A Calorie is a nutritional term equal to 1000 calories
Longitudinal
Insulator

42. v2/2
Approx .7
Pressure to move - voltage when no charge is moving between 2 terminals
Solute whose solution is conductive
?V=BetaV?T

43. capacitors in parallel
Vbulk modulus
Req=R1+R2+R3 Veq=V1+V2+V3
Ceq=C1+C2+C3 Veq=V1=V2=V3
Y=(F/A)/(?L/L) stress over strain

44. light ray that strikes a surface
Wave speed
Fs=
Incident ray
Internal resistance is zero voltage=emf

45. Bernoulli's equation
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Electric fields of all the light waves are oriented in the same direction
Yield strength
Solid to gas

46. Gauss's Law
F=q/e0
Virtual upright
When velocity of the fluid exceeds critical velocity
Req=R1+R2+R3 Veq=V1+V2+V3

47. stays constant when light travels through boundary
Internal resistance is zero voltage=emf
Frequency
F=Gm1m2/r^2
Emf is positive

48. in calculating torque - which direction is + and which is
Ceq=C1+C2+C3 Veq=V1=V2=V3
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Sin=1/2 cos=v3/2
Counterclockwise is + clockwise is -

49. process of combing smaller nuclei to create larger nuclei
20 Hz to 20 -000 Hz
Vrms=Vmax/v2
Force applied parallel to objects surface
Fusion

50. Log(1000)=
F1/A1=F2/A2
3
P=i^2R=V^2/R=IV
N*s/m^2

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MCAT Physics Formulas

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