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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. equation for capacitance with dielectric
Energy of electrons
C=eoKA/D
Beta=10Log(I/Io)
Conductor

2. osmotic pressure formula
Constant for closed system independent of changes in area
?=2L/n
Internal resistance is zero voltage=emf
MRT

3. period of spring
Low voltage to high voltage
F=mv^2/r
2pvm/k
The liquid itself not the object

4. threshold frequency (photoelectric effect)
Electric fields of all the light waves are oriented in the same direction
U=(1/2)kx^2
Minimum frequency of light that will cause emission of an electron
?=4L/n

5. reflection law
E=Pt
Beta=
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Angle of incidence=angle of reflection

6. Electric Potential equation
Force and acceleration
Sin=v3/2 cos=1/2
V=kQ/r
E=kQ/r^2

7. work as product of pressure and volume change
F1/A1=F2/A2
?=vk/m=2p??
F=nv/2L
Spreading out of light as it passes through a narrow opening

8. lever arm is halved what happens to torque
It is halved
More rigid material
273K 0
Light travels from high n to lower n with an angle of incidence greater than the critical angle

9. surface tension results from
MRT
Cohesion
Real inverted
N1>n2

10. 60
Fluid resistance to flow
Derive universal gravitation equation
Sin=v3/2 cos=1/2
Fk=

11. frequency of spring is inversely proportional to...
Fnet=0 thus Fg=Fs mg=kx
700nm -400nm
1/f=1/o+ 1/i
Mass

12. youngs modulus
Resistor
Y=(F/A)/(?L/L) stress over strain
Emf is negative
Negative

13. to find acceleration due to gravity
Protons+neutrons
E=???=hc/?
Derive universal gravitation equation
F=qvBetasin?

14. electrolyte
F=mv^2/r
1000 kg/m^3 or 1 g/cm^3
Fusion
Solute whose solution is conductive

15. light bends away from normal when
C=eoKA/D
Weighted average of the masses of the element
N1>n2
Incident light is used to free electrons from a metal

16. a in isotopic notation
Mass number
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Pascal (Pa) N/m^2
Work/time

17. v2/2
Fnet=0 thus Fg=Fs mg=kx
Farad 1 F= 1 c/v
Splitting of atomic nuclei
Approx .7

18. max frequency of X- ray depends ONLY on...
The liquid itself not the object
Energy of electrons
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Sin=v3/2 cos=1/2

19. sound waves are what kind of waves
Nsin?incident=nsin?refraction
?=4L/n
Longitudinal
I=P/A

20. relate focal length and radius of curvature(r)
Emf is negative
Counterclockwise is + clockwise is -
2 times the focal distance
F=r/2

21. specific gravity greater than one
Substance is more dense then water
Minimum frequency of light that will cause emission of an electron
Fluid resistance to flow
Virtual upright smaller

22. intensity of sound
T=1/f
?=4L/n
I=P/A
(1/2)?v^2

23. electric potential energy
700nm -400nm
Derive universal gravitation equation
U=QV
I=?q/?t

24. torque formula
T=rFsin?
F=1/2(r)
The shortest wavelength
Difference between the absolute and atm pressure Pg=P- Patm

25. frequency of spring is proportional to...
Difference between the mass of nucleus and the sum of nucleons
Spring constant
F=r/2
Fk=

26. increase in velocity of a fluid is associated with
Decrease in pressure that fluid exerts on the walls of the container
U=1/2QV=1/2CV^2=1/2Q^2/C
W=Fdcos?
Charge/length

27. for object in SHM E=
Resistor
(1/2)?v^2
K+U=constant
F=ma

28. atomic mass number represents
Protons+neutrons
Force and acceleration
It jumps to higher energy level
Sin=v2/2 cos=v2/2

29. voltage of AC
Vrms=Vmax/v2
Charge/area
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
?L=aL?T

30. s
W=mg=?Vg
Number of protons
F=- F
Charge/area

31. frequency of light given wavelength
Charge/area
E=1/2k(A^2)
F=c/?
Sin=0 cos=1

32. work in electromagnetic field
Req=R1+R2+R3 Veq=V1+V2+V3
R=pL/A
V/??
W=qv

33. when unlike charges move away from each other - U of the system
???
Equilibrium position
Number of protons
Increases

34. capacitors in parallel
Dispersion
Ceq=C1+C2+C3 Veq=V1=V2=V3
T=rFsin?
Surface

35. horizontal velocity of projectile
Vcos?
Points away from + and toward -
Vsin?
Light travels from high n to lower n with an angle of incidence greater than the critical angle

36. units for power
Pressure to move - voltage when no charge is moving between 2 terminals
2 times the focal distance
WATTS
Convection

37. 180
Sin=0 cos=-1
Voltage
Proton or neutron
Resistor

38. charge on the plates of a capacitor
2pr
Q=CV
Y=(F/A)/(?L/L) stress over strain
Light emitted due to heat

39. work function
Energy required to free electron from given metal
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Force applied parallel to objects surface
Number of protons in nucleus

40. bulk modulus
Holds whenever we have a change in energy ?E=?KE+?PE=0
B=(F/A)/(?V/V)
Current*voltage
When ?=90 b/c sin90=1

41. specific gravity is less than one
P=i^2R=V^2/R=IV
Incident ray
Substance is less dense then water
No image is formed

42. when an electron absorbs a photon
It jumps to higher energy level
Sin=1/2 cos=v3/2
T=rF where F is proportional to mass and r is distance from pivot
When in parallel

43. solves for power lost during transmission (one way)
Equilibrium position
P=i^2r
Force applied parallel to objects surface
Work/time

44. degrees to radians
100% of the object will be submerged but will not sink
Degree=p/180 radian
Work/time
Minimum frequency of light that will cause emission of an electron

45. current of AC
Solute whose solution is conductive
Yield strength
V=?A
Irms=Imax/v2

46. In what position does spring has its greatest speed
Equilibrium position
T=rFsin?
Gas to solid
Substance is less dense then water

47. Hooke's Law
Ampere (1C/s)
1/2mv^2
Degree=p/180 radian
F=- kx

48. Capacitors in series
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Work/time
Emf is positive
Real inverted

49. The bigger the cross - section of a resistor..
WATTS
F1/A1=F2/A2
More flow less resistance
N*s/m^2

50. relate charge and current
K+U=constant
Low voltage to high voltage
Coulomb=amphere*sec
P=m?v