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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. force due to electric field on single charge
Beta=
Force a molecule of liquid feels toward the other molecules of the liquid
E=???=hc/?
E=neE n is excess charge

2. for photoelectric material to liberate an electron
Converted to extra kinetic energy of the emitted electron
E=V/d
Photon energy must be greater than work function of the material
Work/time

3. if cell is not driving current
Internal resistance is zero voltage=emf
Resistor
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
J=Force*Time=mv - mvo=?p

4. frequency of spring is inversely proportional to...
1/2mv^2
E=neE n is excess charge
Mass
Number of protons

5. electric field of parallel plate capacitor
E=V/d
Rate of doing work
Vbulk modulus
Resistor

6. amplitude of spring is proportional to...
Weighted average of the masses of the element
Force and acceleration
U=q?v
Resistor

7. energy of moving proton
When ?=90 b/c sin90=1
Low voltage to high voltage
1/2mv^2
Force a molecule of liquid feels toward molecules of some other substance

8. electric work
C=e(A/d)
Constant for closed system independent of changes in area
U=q?v
Emf is negative

9. index of refraction (n) equation
Negative
N=c/v
Frequency
More flow less resistance

10. kirchhoff's rule -- travel from positive to negative
Emf is negative
Fusion
Weighted average of the masses of the element
Substance is more dense then water

11. type of heat transfer involving transfer of energy by electromagnetic waves
Inverted image
?L=aL?T
Virtual upright
Radiation

12. power dissipated by resistor (3 ways)
F=nv/2L
P=i^2R=V^2/R=IV
A sin?=n?
The liquid itself not the object

13. angular frequency of spring ?
The shortest wavelength
Sin=1/2 cos=v3/2
No net force acting on it
?=vk/m=2p??

14. period (T) and frequency (f) of a tone are related by
Substance is less dense then water
Constant for closed system independent of changes in area
T=1/f
None

15. meaning of Bernouili's equation
Low voltage to high voltage
Fluid resistance to flow
W=Fdcos?
As speed of fluid increases pressure and potential energy decrease

16. atoms atomic number represents
273K 0
Number of protons in nucleus
2pvL/g
New/old

17. across capacitor what remains constant
Voltage
When ?=90 b/c sin90=1
(mass defect)(speed of light)^2
Perpendicular to each other

18. continuity equation*
Converted to extra kinetic energy of the emitted electron
Virtual upright
Req=R1+R2+R3 Veq=V1+V2+V3
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

19. ideal ammeter
Energy required to free electron from given metal
Kg*m/s^2
Vcos?
Zero resistance

20. specific gravity is less than one
Substance is less dense then water
Derive universal gravitation equation
Q=mL
Fs=

21. max frequency of X- ray depends ONLY on...
Energy of electrons
A sin?=n?
It is halved
Moving charge

22. sound waves are what kind of waves
Minimum frequency of light that will cause emission of an electron
3a=Beta
C=eoKA/D
Longitudinal

23. location of minima in diffraction pattern
Low voltage to high voltage
A sin?=n?
Points away from + and toward -
V/??

24. polarized light
Fs=
Electric fields of all the light waves are oriented in the same direction
Voltage
Hydrostatics

25. gauge pressure in relation to the others
Surface
Difference between the absolute and atm pressure Pg=P- Patm
Fusion
Sin=v2/2 cos=v2/2

26. buoyant force is due to...
Converted to extra kinetic energy of the emitted electron
Surface
The liquid itself not the object
E=???=hc/?

27. frequency in string
?=4L/n
Higher temperature increases resistance
F=nv/2L
U=QV

28. density with units
?=m/v kg/m^3 g/ml g/cm^3
Real inverted
Splitting of atomic nuclei
F=- F

29. z in isotopic notation
V=IR
Number of protons
Conduction
Substance is less dense then water

30. difference between Calorie and calorie
F/A
N=c/v
Negative
A Calorie is a nutritional term equal to 1000 calories

31. direction of electric field created by charge
Points away from + and toward -
Amount of energy required for phase change from solid to liquid
Fusion
E=V/d

32. in calculating torque - which direction is + and which is
Longitudinal
P=IA
Counterclockwise is + clockwise is -
?=2L/n

33. Find electric potential given electric field
E*r
Incident light is used to free electrons from a metal
Equilibrium position
U=QV

34. volume thermal expansion of a solid
I=?q/?t
?V=BetaV?T
Difference between the absolute and atm pressure Pg=P- Patm
2pr

35. solves for power lost during transmission (one way)
P=i^2r
Substance is more dense then water
W'=?E=?KE+?U
Rate of doing work

36. 90
EV
Incident light is used to free electrons from a metal
Sin=1 cos=0
2pvm/k

37. deposition
Gas to solid
New/old
Q=mL
T=1/f

38. small moduli value
A=v^2/r
Kg*m/s^2
None
More malleable material

39. under what conditions will light undergo total internal reflection
Solute whose solution is conductive
V=kq/r
Rate of doing work
Light travels from high n to lower n with an angle of incidence greater than the critical angle

40. speed of sound in proportional to...
P=IA
Vbulk modulus
V=ED
20 Hz to 20 -000 Hz

41. volumetric rate of flow (property)
Vcos?
Constant for closed system independent of changes in area
Internal resistance is zero voltage=emf
Emf is positive

42. when spring is at rest
Fnet=0 thus Fg=Fs mg=kx
Gamma decay
Vrms=Vmax/v2
?=2L/n

43. suppose a block is floating in H2O - What does this mean
None
Work/time
Buoyant force equals blocks weight
Spring constant

44. period of pendulum
M1v1=m2v2
2pvL/g
2
F1/A1=F2/A2

45. splitting of white light in a prim is an example of...
F=c/?
Dispersion
373K 100
20 Hz to 20 -000 Hz

46. capacitance of simple parallel plate (not according to Ohms)
More malleable material
Irms=Imax/v2
C=e(A/d)
2

47. electric field equation
?=m/v kg/m^3 g/ml g/cm^3
T=1/f
E=kQ/r^2
Counterclockwise is + clockwise is -

48. torque is given by
Ampere (1C/s)
T=rF where F is proportional to mass and r is distance from pivot
373K 100
I=P/A

49. Capacitors in series
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
F=r/2
Number of protons in nucleus
Vrms=Vmax/v2

50. process of combing smaller nuclei to create larger nuclei
WATTS
Solid to gas
Fusion
Buoyant force equals blocks weight