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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. magnitude of magnetic field for current carrying wire
Hydrostatics
3a=Beta
Beta=
Charge/area

2. solves for power lost during transmission (one way)
C=Q/V
U=1/2QV=1/2CV^2=1/2Q^2/C
Virtual upright smaller
P=i^2r

3. magnification=
image/object
20 Hz to 20 -000 Hz
2pr
Force applied parallel to objects surface

4. lever arm is halved what happens to torque
Cohesion
?=vk/m=2p??
Force applied parallel to objects surface
It is halved

5. light bends toward normal when
F/A
N2>n1
Light emitted due to heat
Number of protons

6. force experience by stationary particle in magnetic field
X=(initial horizontal v)(time in air)
No net force acting on it
None
4 Hz

7. SI unit for pressure
Pascal (Pa) N/m^2
B=(F/A)/(?V/V)
Force and acceleration
?=m/v kg/m^3 g/ml g/cm^3

8. sublimation
Centrioles
1000 kg/m^3 or 1 g/cm^3
None
Solid to gas

9. Ohm's Law
Gas to solid
Nsin?incident=nsin?refraction
(1/2)?v^2
V=IR

10. find power in circuit
When in parallel
Protons+neutrons
Current*voltage
Coulomb=amphere*sec

11. (+) magnification signifies
Upright image
Zero resistance
A=v^2/r
Protons+neutrons

12. what would a specific gravity of 1 indicate
100% of the object will be submerged but will not sink
E=V/d
Difference between the mass of nucleus and the sum of nucleons
Vsin?

13. small moduli value
F=c/?
More malleable material
Decrease in pressure that fluid exerts on the walls of the container
New/old

14. parabolic mirror: object between c and f - image is...
Charge/length
W'=?E=?KE+?U
F=qvBetasin?
Bigger and beyond original object

15. -Beta- decay
P=IA
2pvm/k
Neutron is converted into a proton and an electron is emitted
When in parallel

16. electromotive force
Emf is negative
Pressure to move - voltage when no charge is moving between 2 terminals
F=ma
Mass

17. Electric Potential equation
When ?=90 b/c sin90=1
V=kQ/r
P=IV
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

18. amplitude of spring is proportional to...
???
Increase length increase resistance
Difference between the mass of nucleus and the sum of nucleons
Force and acceleration

19. work done by non conservative force

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20. closed pipe wavelength
(Vo+v)/2
Makes ?G more negative thus more spontaneous
Sin=v2/2 cos=v2/2
?=4L/n

21. torque is given by
Vo+at
Sin=v2/2 cos=v2/2
Diopters
T=rF where F is proportional to mass and r is distance from pivot

22. units for capacitance
Ceq=C1+C2+C3 Veq=V1=V2=V3
Farad 1 F= 1 c/v
Q=mL
Frequency

23. material with low resistance
Conductor
I=P/A
Solid to gas
F=- kx

24. calculate binding energy
(mass defect)(speed of light)^2
Holds whenever we have a change in energy ?E=?KE+?PE=0
Vrms=Vmax/v2
F=xk=mg

25. loudness of sound
Intensity
Vo+at
Approx .7
Real inverted

26. sound level
Difference between the mass of nucleus and the sum of nucleons
Radiation
Makes ?G more negative thus more spontaneous
Beta=10Log(I/Io)

27. Newtons 1st law of motion
Body in motion remains in motion unless net force acts upon it
WATTS
EV
Electric fields of all the light waves are oriented in the same direction

28. viscosity
?x=1/2(v+vo)t
More malleable material
Fluid resistance to flow
Convection

29. planet orbiting a star - centripetal force
Y=(F/A)/(?L/L) stress over strain
Is equal to gravitational force
2 times the focal distance
P=IV

30. kirchhoff's rule -- travel from positive to negative
Emf is negative
Vsin?
Beta=
373K 100

31. resistance in series
E=1/2k(A^2)
700nm -400nm
F=xk=mg
Req=R1+R2+R3 Veq=V1+V2+V3

32. focal for spherical mirrors
None
F=1/2(r)
A Calorie is a nutritional term equal to 1000 calories
?=2L/n

33. ? of sound wave=
Hydrostatics
V/??
2pvL/g
???

34. negative charge moves spontaneously from
Low voltage to high voltage
(1/2)?v^2
The liquid itself not the object
Real inverted image

35. relate velocities and displacement 2 ways
Number of protons
B=
V^2=vo^2+2a?x ?x=1/2(vo+v)t
A Calorie is a nutritional term equal to 1000 calories

36. equation for static friction
Fs=
V^2=vo^2+2a?x ?x=1/2(vo+v)t
E*r
More flow less resistance

37. atomic mass number represents
Protons+neutrons
Force a molecule of liquid feels toward molecules of some other substance
Internal resistance is zero voltage=emf
C=eoKA/D

38. for photoelectric material to liberate an electron
A=v^2/r
Photon energy must be greater than work function of the material
F=1/2(r)
X=(initial horizontal v)(time in air)

39. 60
Photon energy must be greater than work function of the material
Sin=v3/2 cos=1/2
Points away from + and toward -
Makes ?G more negative thus more spontaneous

40. material with very high resistance
E=neE n is excess charge
Insulator
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Spring constant

41. formula for solution which is diluted related to initial concentration
M1v1=m2v2
Resistor
(1/2)?v^2
Frequency

42. relate focal length and radius of curvature(r)
N*s/m^2
Internal resistance is zero voltage=emf
F=r/2
P=IA

43. threshold frequency (photoelectric effect)
Minimum frequency of light that will cause emission of an electron
Kg*m/s^2
Sin=0 cos=1
Increases

44. temperature and resistors
Derive universal gravitation equation
Emf is negative
T=rF where F is proportional to mass and r is distance from pivot
Higher temperature increases resistance

45. degrees to radians
Emf is positive
V/??
2pr
Degree=p/180 radian

46. specific gravity is less than one
F=Gm1m2/r^2
Points away from + and toward -
Counterclockwise is + clockwise is -
Substance is less dense then water

47. ?
Energy gained by particle with charge of e when moved through one volt
Diopters
Charge/length
2pvL/g

48. plane mirrors create What type of image
Virtual
Force and acceleration
Minimum frequency of light that will cause emission of an electron
N*s/m^2

49. weight
W=mg=?Vg
3
Conduction
Force applied parallel to objects surface

50. ideal ammeter
273K 0
Converted to extra kinetic energy of the emitted electron
Coulomb=amphere*sec
Zero resistance