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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 experience by stationary particle in magnetic field
More flow less resistance
F=nv/2L
Negative
None

2. What is an electron volt (eV)
Difference between the mass of nucleus and the sum of nucleons
Energy gained by particle with charge of e when moved through one volt
Degree=p/180 radian
Number of protons in nucleus

3. electrolyte
Neutron is converted into a proton and an electron is emitted
Emf is positive
2pvL/g
Solute whose solution is conductive

4. centripetal acceleration
F=c/?
E=kQ/r^2
A=v^2/r
2pvm/k

5. all harmonics have the same
N2>n1
Wave speed
E=Pt
Y=(F/A)/(?L/L) stress over strain

6. period (T) and frequency (f) of a tone are related by
Frequency
Pascal (Pa) N/m^2
T=1/f
Body in motion remains in motion unless net force acts upon it

7. fission
Splitting of atomic nuclei
Frequency
Spring constant
N=c/v

8. power dissipated by resistor (3 ways)
Bigger and beyond original object
Req=R1+R2+R3 Veq=V1+V2+V3
More flow less resistance
P=i^2R=V^2/R=IV

9. planet orbiting a star - centripetal force
The shortest wavelength
More malleable material
Is equal to gravitational force
Kg*m/s^2

10. power (in general)
F=- F
Work/time
Vot+1/2at^2=(V0+v/2)t
A sin?=n?

11. focal length
700nm -400nm
Vcos?
1/f=1/o+ 1/i
N2>n1

12. When is voltage constant across capacitors
Energy of electrons
Neutron is converted into a proton and an electron is emitted
When in parallel
(mass defect)(speed of light)^2

13. threshold frequency (photoelectric effect)
Minimum frequency of light that will cause emission of an electron
Fusion
P=IV
Neutron is converted into a proton and an electron is emitted

14. atomic mass number represents
Gamma decay
W=mg=?Vg
Nsin?incident=nsin?refraction
Protons+neutrons

15. When does turbulence in a fluid arise
When velocity of the fluid exceeds critical velocity
P=i^2r
I=?q/?t
Zero resistance

16. material with low resistance
Real inverted
Conductor
Energy gained by particle with charge of e when moved through one volt
Charge/length

17. electrical power
?V=BetaV?T
P=IV
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
2pvm/k

18. charge of beta particles
Q=mL
?=vk/m=2p??
Negative
Wave speed

19. potential energy of spring
Virtual upright
U=(1/2)kx^2
E=neE n is excess charge
Higher temperature increases resistance

20. equation for static friction
Fs=
Fusion
3a=Beta
P=1/f

21. frequency in string
Energy gained by particle with charge of e when moved through one volt
F=nv/2L
Sin=0 cos=1
B=

22. audible wave frequency
Counterclockwise is + clockwise is -
V=???
20 Hz to 20 -000 Hz
F=c/?

23. electric field and magnetic field are...
Perpendicular to each other
373K 100
Gas to solid
Negative

24. sublimation
Makes ?G more negative thus more spontaneous
Solid to gas
N2>n1
4 Hz

25. convex mirror
P=i^2R=V^2/R=IV
None
Image is always upright virtual and smaller
Electric fields of all the light waves are oriented in the same direction

26. Newtons 1st law of motion
Force a molecule of liquid feels toward molecules of some other substance
Protons+neutrons
Vo^2+2a(?x)
Body in motion remains in motion unless net force acts upon it

27. closed pipe frequency
Body in motion remains in motion unless net force acts upon it
??=nv/4L
Yield strength
N2>n1

28. gravitational force formula
Hydrostatics
F=Gm1m2/r^2
Sin=v2/2 cos=v2/2
P=IV

29. light bends away from normal when
N1>n2
Real inverted
Fusion
F=q/e0

30. torque is given by
Body in motion remains in motion unless net force acts upon it
T=rF where F is proportional to mass and r is distance from pivot
Difference between the absolute and atm pressure Pg=P- Patm
Fnet=0 thus Fg=Fs mg=kx

31. density of water
1000 kg/m^3 or 1 g/cm^3
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Amount of energy required for phase change from solid to liquid
Fk=

32. electric flux
Increase length increase resistance
Q=mL
Centrioles
F=E*A

33. material with moderate resistance
Low voltage to high voltage
P=1/f
Upright image
Resistor

34. snells law
The liquid itself not the object
Nsin?incident=nsin?refraction
???
When in parallel

35. energy of moving proton
Negative
1/2mv^2
E=V/d
Voltage

36. conservation of energy law
F=Gm1m2/r^2
Holds whenever we have a change in energy ?E=?KE+?PE=0
Conduction
F=- F

37. cohesion
Force a molecule of liquid feels toward the other molecules of the liquid
Inverted image
Real inverted
Yield strength

38. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Cohesion
When in parallel
Energy gained by particle with charge of e when moved through one volt

39. 90
N2>n1
Sin=1 cos=0
Virtual
Cohesion

40. density with units
?=m/v kg/m^3 g/ml g/cm^3
Neutron is converted into a proton and an electron is emitted
U=1/2QV=1/2CV^2=1/2Q^2/C
Sin=v2/2 cos=v2/2

41. equation for kinetic friction
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Weighted average of the masses of the element
Fk=
700nm -400nm

42. if cell is not driving current
N1>n2
2 times the focal distance
Internal resistance is zero voltage=emf
20 Hz to 20 -000 Hz

43. units for capacitance
Farad 1 F= 1 c/v
Irms=Imax/v2
Body in motion remains in motion unless net force acts upon it
Sin=1/2 cos=v3/2

44. for photoelectric material to liberate an electron
Photon energy must be greater than work function of the material
No image is formed
Fs=
I=P/A

45. open pipe frequency
Surface
F=nv/2L
Perpendicular to each other
Number of protons in nucleus

46. capacitance of simple parallel plate (not according to Ohms)
C=e(A/d)
?=m/v kg/m^3 g/ml g/cm^3
When ?=90 b/c sin90=1
U=q?v

47. What is displacement equation
I=P/A
?x=1/2(v+vo)t
Vcos?
1/f=1/o+ 1/i

48. 30
T=1/f
Sin=1/2 cos=v3/2
When velocity of the fluid exceeds critical velocity
N*s/m^2

49. kirchhoff's rule -- travel from positive to negative
Holds whenever we have a change in energy ?E=?KE+?PE=0
F=Gm1m2/r^2
Emf is negative
V=kq/r

50. formula for solution which is diluted related to initial concentration
M1v1=m2v2
Cohesion
E=1/2k(A^2)
MRT