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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. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
Force a molecule of liquid feels toward the other molecules of the liquid
Inverted image
Vrms=Vmax/v2

2. When does turbulence in a fluid arise
Negative
Pascal (Pa) N/m^2
E=V/d
When velocity of the fluid exceeds critical velocity

3. all harmonics have the same
Buoyant force equals blocks weight
When velocity of the fluid exceeds critical velocity
Wave speed
Real inverted

4. equation for static friction
Fs=
Intensity
P=IA
Negative

5. In what position does spring has its greatest speed
N is proportional to 1/?
C=eoKA/D
Equilibrium position
2

6. osmotic pressure formula
U=(1/2)kx^2
Frequency
MRT
E=V/d

7. sound waves are what kind of waves
P=IA
Longitudinal
Vo+at
?=4L/n

8. find voltage (original)
Sin=v3/2 cos=1/2
W=Fdcos?
2 times the focal distance
V=kq/r

9. 0
Current*voltage
Negative
Sin=0 cos=1
C=e(A/d)

10. under constant acceleration - v=
New/old
?=vk/m=2p??
Vo+at
Conduction

11. diffraction
No net force acting on it
Virtual upright
Spreading out of light as it passes through a narrow opening
Equilibrium position

12. velocity for a wave
Sin=1 cos=0
V=???
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Bigger and beyond original object

13. in calculating torque - which direction is + and which is
Zero resistance
Counterclockwise is + clockwise is -
F=c/?
C=eoKA/D

14. work as it relates to constant force
W=Fdcos?
0K -273
E=???=hc/?
T=rFsin?

15. plane mirrors create What type of image
Virtual
Light emitted due to heat
Approx .7
Wave speed

16. capacitors in parallel
Body in motion remains in motion unless net force acts upon it
None
Real image
Ceq=C1+C2+C3 Veq=V1=V2=V3

17. Capacitors in series
?=2L/n
Vot+1/2at^2=(V0+v/2)t
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Upright image

18. density with units
?=m/v kg/m^3 g/ml g/cm^3
M1v1=m2v2
V^2=vo^2+2a?x ?x=1/2(vo+v)t
More rigid material

19. force experience by stationary particle in magnetic field
I=?q/?t
Resistor
Incident light is used to free electrons from a metal
None

20. electric potential energy
?=vk/m=2p??
Amount of energy required for phase change from solid to liquid
U=QV
Q=mc?t

21. calculate lens power
Q=CV
Fusion
P=1/f
E=V/d

22. wavelength in string
Voltage
Y=(F/A)/(?L/L) stress over strain
Centrioles
?=2L/n

23. As current flows through a resistor
Derive universal gravitation equation
N is proportional to 1/?
Gas to solid
Charge remains constant

24. resistance in series
4 Hz
Ceq=C1+C2+C3 Veq=V1=V2=V3
Req=R1+R2+R3 Veq=V1+V2+V3
Negative

25. When is voltage constant across capacitors
When in parallel
Substance is more dense then water
Degree=p/180 radian
V^2=vo^2+2a?x ?x=1/2(vo+v)t

26. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Ampere (1C/s)
None
2 times the focal distance
Negative

27. snells law
4 Hz
Nsin?incident=nsin?refraction
Irms=Imax/v2
V=ED

28. what would a specific gravity of 1 indicate
N1>n2
100% of the object will be submerged but will not sink
Force applied parallel to objects surface
Work/time

29. SI unit for pressure
373K 100
Vo^2+2a(?x)
Neutron is converted into a proton and an electron is emitted
Pascal (Pa) N/m^2

30. weight
WATTS
Sin=0 cos=1
W=mg=?Vg
Real image

31. 180
Sin=0 cos=-1
Charge remains constant
N2>n1
Proton or neutron

32. type of heat transfer involving transfer of energy by electromagnetic waves
Incident ray
F=nv/2L
(1/2)?v^2
Radiation

33. calculate binding energy
Converted to extra kinetic energy of the emitted electron
Fusion
Q=mc?t
(mass defect)(speed of light)^2

34. increase in velocity of a fluid is associated with
Decrease in pressure that fluid exerts on the walls of the container
Spring constant
Radiation
Kg*m/s^2

35. under constant acceleration V(average)=
Ceq=C1+C2+C3 Veq=V1=V2=V3
More flow less resistance
(Vo+v)/2
Angle of incidence=angle of reflection

36. index of refraction (n) equation
Degree=p/180 radian
N=c/v
Substance is more dense then water
Frequency

37. magnetic force
N*s/m^2
F=I(L*B)
Equilibrium position
F=qvBetasin?

38. equation for capacitance with dielectric
Intensity
When in parallel
Radiation
C=eoKA/D

39. work in electromagnetic field
Amount of energy required for phase change from solid to liquid
W=qv
Protons+neutrons
(Vo+v)/2

40. electric field of parallel plate capacitor
E=V/d
Bigger and beyond original object
Energy required to free electron from given metal
Fk=

41. voltage of AC
Vrms=Vmax/v2
P=i^2R=V^2/R=IV
U=q?v
4 Hz

42. under what conditions will light undergo total internal reflection
More rigid material
Counterclockwise is + clockwise is -
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Light travels from high n to lower n with an angle of incidence greater than the critical angle

43. When is torque maximum
F=q/e0
Force a molecule of liquid feels toward the other molecules of the liquid
When ?=90 b/c sin90=1
Charge/area

44. Newtons 3rd law of motion
Points away from + and toward -
F=- F
When velocity of the fluid exceeds critical velocity
Substance is more dense then water

45. object placed beyond focal point in converging lens create What type of image
Electric fields of all the light waves are oriented in the same direction
Protons+neutrons
Real inverted
1/f=1/o+ 1/i

46. power dissipated by resistor (3 ways)
Real image
P=i^2R=V^2/R=IV
Approx .7
Farad 1 F= 1 c/v

47. planet orbiting a star - centripetal force
(Vo+v)/2
Sin=v2/2 cos=v2/2
Is equal to gravitational force
F=qvBetasin?

48. when spring is at rest
2pvL/g
Sin=0 cos=1
V=???
Fnet=0 thus Fg=Fs mg=kx

49. a lightbulb in a circuit is a
Beta=10Log(I/Io)
Low voltage to high voltage
F=mv^2/r
Resistor

50. dynamic pressure
?=m/v kg/m^3 g/ml g/cm^3
Fluid resistance to flow
(1/2)?v^2
Real inverted

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MCAT Physics Formulas

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