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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Ohm's Law
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Energy required to free electron from given metal
V=IR
2pvL/g

2. beat frequencies for two frequencies differing by 4 Hz
E=neE n is excess charge
Approx .7
4 Hz
Sin=1/2 cos=v3/2

3. light bends toward normal when
Emf is negative
Vcos?
N2>n1
E*r

4. specific gravity greater than one
Substance is more dense then water
Vsin?
Amount of energy required for phase change from solid to liquid
P=i^2R=V^2/R=IV

5. Log(100)=
Emf is positive
When ?=90 b/c sin90=1
None
2

6. closed pipe wavelength
W=qv
Higher temperature increases resistance
?=4L/n
2pvm/k

7. larger the index of refraction..
C=Q/V
Slower light will travel
Spreading out of light as it passes through a narrow opening
F=I(L*B)

8. v2/2
P=IA
W=qv
Spring constant
Approx .7

9. work as it relates to constant force
R=pL/A
B=
W=Fdcos?
Convection

10. wavelength in string
?=2L/n
U=1/2QV=1/2CV^2=1/2Q^2/C
Converted to extra kinetic energy of the emitted electron
Frequency

11. equation for capacitance with dielectric
Derive universal gravitation equation
C=eoKA/D
(mass defect)(speed of light)^2
Higher temperature increases resistance

12. period of spring
2pvm/k
Q=mc?t
F=nv/2L
Light emitted due to heat

13. dielectric material
Will never decrease capacitance
Vbulk modulus
When in parallel
Beta=10Log(I/Io)

14. temperature and resistors
Negative
A sin?=n?
Vbulk modulus
Higher temperature increases resistance

15. ? of sound wave=
Moving charge
Beta=
V/??
Current*voltage

16. capacitance equation in circuit
F=Gm1m2/r^2
C=Q/V
T=1/f
image/object

17. volume thermal expansion of a solid
Sin=v3/2 cos=1/2
Vcos?
?V=BetaV?T
N*s/m^2

18. capacitance of simple parallel plate (not according to Ohms)
When in parallel
Decrease in pressure that fluid exerts on the walls of the container
C=e(A/d)
Real inverted image

19. a lightbulb in a circuit is a
W=Fdcos?
Fk=
Resistor
?=vk/m=2p??

20. a in isotopic notation
Energy required to free electron from given metal
Virtual upright
Increases
Mass number

21. study of fluids at rest
Hydrostatics
Electric fields of all the light waves are oriented in the same direction
Solute whose solution is conductive
Q=mL

22. fission
Splitting of atomic nuclei
0K -273
(Vo+v)/2
Voltage

23. power dissipated by resistor (3 ways)
3
P=i^2R=V^2/R=IV
Wave speed
Light travels from high n to lower n with an angle of incidence greater than the critical angle

24. adhesion
N=c/v
Weighted average of the masses of the element
Force a molecule of liquid feels toward molecules of some other substance
?L=aL?T

25. length of resistor
C=Q/V
Decrease in pressure that fluid exerts on the walls of the container
A=v^2/r
Increase length increase resistance

26. degrees to radians
Degree=p/180 radian
F=1/2(r)
Pascal (Pa) N/m^2
(1/2)?v^2

27. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
F=nv/2L
R=pL/A
Beta=

28. Capacitors in series
2
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
P=i^2r
Constant for closed system independent of changes in area

29. difference between Calorie and calorie
Req=R1+R2+R3 Veq=V1+V2+V3
Vo^2+2a(?x)
A Calorie is a nutritional term equal to 1000 calories
Incident light is used to free electrons from a metal

30. total energy of spring system
J=Force*Time=mv - mvo=?p
E=1/2k(A^2)
P=IV
T=1/f

31. What is displacement equation
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Vo+at
?x=1/2(v+vo)t
E=V/d

32. units for capacitance
No image is formed
Farad 1 F= 1 c/v
Force applied parallel to objects surface
Sin=v3/2 cos=1/2

33. magnetic field force on current carrying wire
F=I(L*B)
More rigid material
Negative
Conductor

34. momentum
Increases
V/??
P=m?v
Dispersion

35. fungal cells unlike animals cells do not contain
F=xk=mg
Centrioles
Diopters
Pressure to move - voltage when no charge is moving between 2 terminals

36. location of minima in diffraction pattern
EV
Hydrostatics
A sin?=n?
Proton or neutron

37. unit for energy beside J
N2>n1
Vsin?
0K -273
EV

38. density of water
???
?L=aL?T
Emf is negative
1000 kg/m^3 or 1 g/cm^3

39. amplitude of spring is proportional to...
Substance is less dense then water
Force and acceleration
More flow less resistance
Zero resistance

40. sound level
Beta=10Log(I/Io)
C=eoKA/D
?=vk/m=2p??
Charge remains constant

41. max frequency of X- ray depends ONLY on...
Internal resistance is zero voltage=emf
Longitudinal
?=m/v kg/m^3 g/ml g/cm^3
Energy of electrons

42. resistance in series
??=nv/4L
Req=R1+R2+R3 Veq=V1+V2+V3
0K -273
Mass

43. shear
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Force applied parallel to objects surface
B=(F/A)/(?V/V)
E*r

44. light ray that strikes a surface
V=kQ/r
P=i^2R=V^2/R=IV
When ?=90 b/c sin90=1
Incident ray

45. under constant acceleration V(average)=
Internal resistance is zero voltage=emf
(Vo+v)/2
Solute whose solution is conductive
Charge remains constant

46. centripetal acceleration
A=v^2/r
Perpendicular to each other
Insulator
P=i^2R=V^2/R=IV

47. threshold frequency (photoelectric effect)
Approx .7
P=i^2r
Minimum frequency of light that will cause emission of an electron
Photon energy must be greater than work function of the material

48. wave velocity=
???
Proton or neutron
EV
Radiation

49. magnetic field is created by loop wire - What is magnetic field at center of loop
Light travels from high n to lower n with an angle of incidence greater than the critical angle
image/object
Beta=
?=4L/n

50. reflection law
Weighted average of the masses of the element
Angle of incidence=angle of reflection
Photon energy must be greater than work function of the material
Image is always upright virtual and smaller