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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. increase in velocity of a fluid is associated with
2 times the focal distance
Electric fields of all the light waves are oriented in the same direction
F=ma
Decrease in pressure that fluid exerts on the walls of the container

2. torque is given by
Mass number
?=4L/n
Insulator
T=rF where F is proportional to mass and r is distance from pivot

3. magnetic field is created by loop wire - What is magnetic field at center of loop
Voltage
Beta=
Charge/length
Amount of energy required for phase change from solid to liquid

4. 180
Fnet=0 thus Fg=Fs mg=kx
Sin=0 cos=-1
Longitudinal
P=IV

5. a in isotopic notation
Work/time
P=IA
Virtual
Mass number

6. magnitude of magnetic field for current carrying wire
Sin=0 cos=1
T=rF where F is proportional to mass and r is distance from pivot
Light emitted due to heat
Beta=

7. formula for heat gained or lost during phase change
Q=mL
Charge remains constant
Fusion
Increase length increase resistance

8. thermal expansion of a solid
?L=aL?T
Frequency
Virtual upright
N2>n1

9. frequency of spring is inversely proportional to...
E=1/2k(A^2)
Mass
Irms=Imax/v2
More flow less resistance

10. Gauss's Law
Diopters
F=q/e0
Frequency
Substance is more dense then water

11. capacitors in parallel
Force a molecule of liquid feels toward molecules of some other substance
Gamma decay
Ceq=C1+C2+C3 Veq=V1=V2=V3
C=e(A/d)

12. boiling point of H2O in K and C
Kg*m/s^2
373K 100
F/A
Pascal (Pa) N/m^2

13. find factor by which something has been changed
New/old
Virtual upright
The shortest wavelength
Splitting of atomic nuclei

14. Bernoulli's equation
3a=Beta
Bigger and beyond original object
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Minimum frequency of light that will cause emission of an electron

15. fungal cells unlike animals cells do not contain
I=?q/?t
Centrioles
Current*voltage
F=I(L*B)

16. point of shape change beyond which a material can go back to normal
U=1/2QV=1/2CV^2=1/2Q^2/C
N2>n1
Yield strength
MRT

17. What is heat of fusion
P=m?v
F=q/e0
I=P/A
Amount of energy required for phase change from solid to liquid

18. work done by non conservative force

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19. under content acceleration v^2=
Vsin?
Vo^2+2a(?x)
Pressure to move - voltage when no charge is moving between 2 terminals
None

20. SI unit for pressure
Pascal (Pa) N/m^2
F=nv/2L
E=neE n is excess charge
F=Gm1m2/r^2

21. location of minima in diffraction pattern
Virtual
A sin?=n?
W=qv
2pvL/g

22. dynamic pressure
X=(initial horizontal v)(time in air)
(1/2)?v^2
Fusion
It is halved

23. mass defect
Energy of electrons
Difference between the mass of nucleus and the sum of nucleons
F=nv/2L
Splitting of atomic nuclei

24. force experienced by moving charge traveling parallel or antiparallel to magnetic field
No net force acting on it
None
Counterclockwise is + clockwise is -
Force applied parallel to objects surface

25. negative charge moves spontaneously from
Minimum frequency of light that will cause emission of an electron
Mass number
Low voltage to high voltage
B=(F/A)/(?V/V)

26. degrees to radians
Coulomb=amphere*sec
Zero resistance
Hydrostatics
Degree=p/180 radian

27. conservation of energy law
Holds whenever we have a change in energy ?E=?KE+?PE=0
Ceq=C1+C2+C3 Veq=V1=V2=V3
Sin=0 cos=1
Mass

28. power is defined as
Vsin?
Rate of doing work
Is equal to gravitational force
?V=BetaV?T

29. light bends toward normal when
Virtual upright
N2>n1
Charge/area
When ?=90 b/c sin90=1

30. ?
Q=CV
None
Charge/length
E=Pt

31. cohesion
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
F=nv/2L
Real inverted image
Force a molecule of liquid feels toward the other molecules of the liquid

32. parabolic mirror: image at focal point
N*s/m^2
No image is formed
Longitudinal
Low voltage to high voltage

33. (-) magnification signifies
Irms=Imax/v2
Solute whose solution is conductive
Inverted image
Nsin?incident=nsin?refraction

34. material with very high resistance
Beta=10Log(I/Io)
Insulator
20 Hz to 20 -000 Hz
700nm -400nm

35. max frequency of X- ray depends ONLY on...
V/??
C=e(A/d)
Energy of electrons
Photon energy must be greater than work function of the material

36. electric flux
Wave speed
Resistor
F=E*A
Light emitted due to heat

37. reflection law
Proton or neutron
Angle of incidence=angle of reflection
New/old
?=m/v kg/m^3 g/ml g/cm^3

38. When does turbulence in a fluid arise
Mass
Centrioles
When velocity of the fluid exceeds critical velocity
Makes ?G more negative thus more spontaneous

39. Log(100)=
Increases
2
Irms=Imax/v2
Number of protons

40. period of pendulum
1/2mv^2
2pvL/g
Q=mc?t
K+U=constant

41. Newtons 3rd law of motion
F=- F
W'=?E=?KE+?U
Points away from + and toward -
Wave speed

42. density with units
Virtual upright
?=m/v kg/m^3 g/ml g/cm^3
2 times the focal distance
???

43. under constant acceleration - two ways ?x=
Constant for closed system independent of changes in area
Vot+1/2at^2=(V0+v/2)t
Force a molecule of liquid feels toward the other molecules of the liquid
Rate of doing work

44. difference between Calorie and calorie
Increase length increase resistance
A Calorie is a nutritional term equal to 1000 calories
C=e(A/d)
Irms=Imax/v2

45. material with moderate resistance
Conduction
2pr
Resistor
Q=mc?t

46. units for power
Weighted average of the masses of the element
Proton or neutron
WATTS
Zero resistance

47. parabolic mirror: object in front of focal point
Yield strength
Sin=0 cos=1
Virtual upright
Neutron is converted into a proton and an electron is emitted

48. work as product of pressure and volume change
F1/A1=F2/A2
Vsin?
B=
Gamma decay

49. body in translational equilibrium
F1/A1=F2/A2
V=kQ/r
F=qvBetasin?
No net force acting on it

50. capacitance of simple parallel plate (not according to Ohms)
C=e(A/d)
?=2L/n
U=q?v
F=ma

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MCAT Physics Formulas

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