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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. across capacitor what remains constant
Voltage
Inverted image
Charge/length
Sin=v3/2 cos=1/2

2. magnetic force
Farad 1 F= 1 c/v
None
2 times the focal distance
F=qvBetasin?

3. formula for impulse (J)
Derive universal gravitation equation
Virtual upright smaller
J=Force*Time=mv - mvo=?p
W=qv

4. all harmonics have the same
Rate of doing work
Wave speed
Irms=Imax/v2
Energy of electrons

5. viscosity
Req=R1+R2+R3 Veq=V1+V2+V3
Fluid resistance to flow
E=V/d
More flow less resistance

6. length of resistor
Makes ?G more negative thus more spontaneous
1/2mv^2
Increase length increase resistance
F=xk=mg

7. voltage of AC
Fnet=0 thus Fg=Fs mg=kx
Vrms=Vmax/v2
Decrease in pressure that fluid exerts on the walls of the container
Convection

8. equation for kinetic friction
Fk=
???
Intensity
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

9. loudness of sound
Intensity
Energy of electrons
V/??
Fnet=0 thus Fg=Fs mg=kx

10. larger the index of refraction..
Slower light will travel
Ceq=C1+C2+C3 Veq=V1=V2=V3
When ?=90 b/c sin90=1
Fnet=0 thus Fg=Fs mg=kx

11. speed of sound in proportional to...
When ?=90 b/c sin90=1
Image is always upright virtual and smaller
Vbulk modulus
Q=mL

12. magnetic field of solenoid
B=
When velocity of the fluid exceeds critical velocity
Amount of energy required for phase change from solid to liquid
Points away from + and toward -

13. wave velocity=
???
Voltage
More malleable material
None

14. electrical power
N1>n2
V=kQ/r
P=IV
Makes ?G more negative thus more spontaneous

15. bulk modulus
2pr
B=(F/A)/(?V/V)
(1/2)?v^2
Virtual upright

16. object placed inside focal point in converging lens create What type of image
Pascal (Pa) N/m^2
Energy gained by particle with charge of e when moved through one volt
Virtual upright
F/A

17. type of image ALWAYS created by diverging (convex) mirror
Ceq=C1+C2+C3 Veq=V1=V2=V3
Virtual upright smaller
Frequency
Derive universal gravitation equation

18. meaning of Bernouili's equation
More rigid material
Negative
Protons+neutrons
As speed of fluid increases pressure and potential energy decrease

19. for photoelectric material to liberate an electron
Frequency
Surface
No image is formed
Photon energy must be greater than work function of the material

20. when spring is at rest
M1v1=m2v2
Charge/area
P=1/f
Fnet=0 thus Fg=Fs mg=kx

21. Capacitors in series
Virtual
Real inverted image
A Calorie is a nutritional term equal to 1000 calories
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

22. planet orbiting a star - centripetal force
Counterclockwise is + clockwise is -
Perpendicular to each other
Charge remains constant
Is equal to gravitational force

23. under what conditions will light undergo total internal reflection
Vo^2+2a(?x)
U=q?v
Light travels from high n to lower n with an angle of incidence greater than the critical angle
E=neE n is excess charge

24. electric potential energy
U=QV
P=1/f
700nm -400nm
When ?=90 b/c sin90=1

25. in calculating torque - which direction is + and which is
(mass defect)(speed of light)^2
Counterclockwise is + clockwise is -
V=???
P=m?v

26. electric field equation
Is equal to gravitational force
(mass defect)(speed of light)^2
E=kQ/r^2
Amount of energy required for phase change from solid to liquid

27. frequency in string
P=i^2r
?=2L/n
F=nv/2L
Energy gained by particle with charge of e when moved through one volt

28. excess energy of a photon is...
3a=Beta
?x=1/2(v+vo)t
Converted to extra kinetic energy of the emitted electron
Upright image

29. angular frequency of spring ?
It jumps to higher energy level
Real inverted
W=qv
?=vk/m=2p??

30. parabolic mirror: image at focal point
Emf is positive
Decrease in pressure that fluid exerts on the walls of the container
No image is formed
V=IR

31. circumference of a circle
Substance is more dense then water
2pr
As speed of fluid increases pressure and potential energy decrease
Upright image

32. plane mirrors create What type of image
Virtual
Approx .7
V/??
Fs=

33. electric flux
A=v^2/r
X=(initial horizontal v)(time in air)
Perpendicular to each other
F=E*A

34. momentum
More malleable material
P=m?v
Real inverted image
None

35. kirchhoff's rule -- travel from positive to negative
P=IA
Emf is negative
F=Gm1m2/r^2
Degree=p/180 radian

36. magnetic field is created by loop wire - What is magnetic field at center of loop
Protons+neutrons
Charge remains constant
Beta=
Is equal to gravitational force

37. reflection law
J=Force*Time=mv - mvo=?p
Angle of incidence=angle of reflection
Makes ?G more negative thus more spontaneous
E*r

38. power dissipated by resistor (3 ways)
Constant for closed system independent of changes in area
Incident ray
Virtual upright
P=i^2R=V^2/R=IV

39. a in isotopic notation
V=ED
Charge/length
Mass number
100% of the object will be submerged but will not sink

40. electric field of parallel plate capacitor
E=V/d
Pressure to move - voltage when no charge is moving between 2 terminals
EV
Vot+1/2at^2=(V0+v/2)t

41. torque formula
T=rFsin?
EV
Points away from + and toward -
F=r/2

42. suppose a block is floating in H2O - What does this mean
More rigid material
Constant for closed system independent of changes in area
Side opposite From which light originates
Buoyant force equals blocks weight

43. light bends away from normal when
V=???
N1>n2
?=m/v kg/m^3 g/ml g/cm^3
A Calorie is a nutritional term equal to 1000 calories

44. electric field and magnetic field are...
Perpendicular to each other
Makes ?G more negative thus more spontaneous
Emf is positive
Irms=Imax/v2

45. parabolic mirror: object between c and f - image is...
?=m/v kg/m^3 g/ml g/cm^3
Conductor
C=Q/V
Bigger and beyond original object

46. force experienced by moving charge traveling parallel or antiparallel to magnetic field
B=
N is proportional to 1/?
Surface
None

47. In what position does spring has its greatest speed
P=i^2r
More malleable material
Yield strength
Equilibrium position

48. amplitude of spring is proportional to...
Force and acceleration
W=qv
Increase length increase resistance
?V=BetaV?T

49. speed of the spring
Difference between the absolute and atm pressure Pg=P- Patm
V=?A
E=1/2k(A^2)
Dispersion

50. unit for energy beside J
Difference between the mass of nucleus and the sum of nucleons
Will never decrease capacitance
EV
None

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MCAT Physics Formulas

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