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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. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
4 Hz
U=q?v
Inverted image

2. magnification=
Amount of energy required for phase change from solid to liquid
image/object
Convection
U=q?v

3. relationship between linear thermal expansion and volumetric thermal expansion
Insulator
R=pL/A
2
3a=Beta

4. period (T) and frequency (f) of a tone are related by
N*s/m^2
Voltage
T=1/f
Light travels from high n to lower n with an angle of incidence greater than the critical angle

5. object placed beyond focal point in converging lens create What type of image
Real inverted
Proton or neutron
F=r/2
Hydrostatics

6. relate charge and current
Longitudinal
Coulomb=amphere*sec
B=
Req=R1+R2+R3 Veq=V1+V2+V3

7. polarized light
Gamma decay
Coulomb=amphere*sec
?=m/v kg/m^3 g/ml g/cm^3
Electric fields of all the light waves are oriented in the same direction

8. magnitude of current
I=?q/?t
2pr
New/old
The liquid itself not the object

9. object placed inside focal point in converging lens create What type of image
Neutron is converted into a proton and an electron is emitted
?=m/v kg/m^3 g/ml g/cm^3
Virtual upright
?L=aL?T

10. material with very high resistance
Insulator
B=(F/A)/(?V/V)
273K 0
2pvL/g

11. 60
?x=1/2(v+vo)t
Sin=v3/2 cos=1/2
Will never decrease capacitance
Converted to extra kinetic energy of the emitted electron

12. material with low resistance
Virtual upright
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Conductor
Holds whenever we have a change in energy ?E=?KE+?PE=0

13. Newtons 2nd law of motion
F=ma
Sin=0 cos=-1
Ceq=C1+C2+C3 Veq=V1=V2=V3
N2>n1

14. length of resistor
Intensity
Beta=
Increase length increase resistance
F=I(L*B)

15. Ohm's Law
B=(F/A)/(?V/V)
Photon energy must be greater than work function of the material
?L=aL?T
V=IR

16. calculate lens power
N is proportional to 1/?
Charge remains constant
P=1/f
Converted to extra kinetic energy of the emitted electron

17. under content acceleration v^2=
Photon energy must be greater than work function of the material
Vo^2+2a(?x)
N2>n1
Diopters

18. formula for heat gained or lost during phase change
More rigid material
Substance is more dense then water
Mass
Q=mL

19. force experienced by moving charge traveling parallel or antiparallel to magnetic field
B=
V=kq/r
Y=(F/A)/(?L/L) stress over strain
None

20. pressure
F/A
Higher temperature increases resistance
Substance is more dense then water
I=P/A

21. all harmonics have the same
Ampere (1C/s)
Conductor
Wave speed
Fs=

22. speed of sound in proportional to...
Vbulk modulus
Frequency
U=(1/2)kx^2
Vo^2+2a(?x)

23. units for power of a lens
1000 kg/m^3 or 1 g/cm^3
Derive universal gravitation equation
Rate of doing work
Diopters

24. electric field equation
Force and acceleration
E=kQ/r^2
Will never decrease capacitance
Equilibrium position

25. equation for kinetic friction
P=IA
U=1/2QV=1/2CV^2=1/2Q^2/C
Resistor
Fk=

26. power (in general)
B=(F/A)/(?V/V)
?=vk/m=2p??
Sin=v3/2 cos=1/2
Work/time

27. if cell is not driving current
C=eoKA/D
The shortest wavelength
N is proportional to 1/?
Internal resistance is zero voltage=emf

28. sound waves are what kind of waves
Charge/area
Energy of electrons
Rate of doing work
Longitudinal

29. magnetic field of solenoid
B=
E=1/2k(A^2)
More malleable material
Difference between the mass of nucleus and the sum of nucleons

30. ? of sound wave=
???
??=nv/4L
V/??
I=P/A

31. force due to electric field on single charge
E=neE n is excess charge
J=Force*Time=mv - mvo=?p
Fs=
P=1/f

32. degrees to radians
Degree=p/180 radian
Gas to solid
4 Hz
Real inverted

33. intensity of sound
I=P/A
U=QV
Low voltage to high voltage
?L=aL?T

34. max frequency of X- ray depends ONLY on...
T=rF where F is proportional to mass and r is distance from pivot
2
Energy of electrons
Q=mL

35. electrolyte
N*s/m^2
Virtual
Solute whose solution is conductive
Force and acceleration

36. energy stored in capacitor
2pr
U=1/2QV=1/2CV^2=1/2Q^2/C
P=1/f
Yield strength

37. in calculating torque - which direction is + and which is
Equilibrium position
None
Counterclockwise is + clockwise is -
Gas to solid

38. equation for static friction
Fs=
???
F=mv^2/r
2

39. increasing emf has What effect on ?G
F=1/2(r)
1/2mv^2
Makes ?G more negative thus more spontaneous
T=1/f

40. find energy in circuit
V=???
Low voltage to high voltage
E=Pt
None

41. adhesion
MRT
?=m/v kg/m^3 g/ml g/cm^3
Force a molecule of liquid feels toward molecules of some other substance
2 times the focal distance

42. parabolic mirror: object between c and f - image is...
WATTS
P=1/f
E=1/2k(A^2)
Bigger and beyond original object

43. formula for impulse (J)
Internal resistance is zero voltage=emf
J=Force*Time=mv - mvo=?p
Real inverted
W=qv

44. work as it relates to constant force
Y=(F/A)/(?L/L) stress over strain
Conduction
W=Fdcos?
Vsin?

45. electromotive force
Pressure to move - voltage when no charge is moving between 2 terminals
Gamma decay
Holds whenever we have a change in energy ?E=?KE+?PE=0
F=Gm1m2/r^2

46. absolute zero in K and C
C=Q/V
W=Fdcos?
V^2=vo^2+2a?x ?x=1/2(vo+v)t
0K -273

47. light bends away from normal when
N1>n2
???
C=eoKA/D
F=1/2(r)

48. units for power
Inverted image
V=IR
Charge/length
WATTS

49. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
V=???
Protons+neutrons
B=(F/A)/(?V/V)

50. current of AC
F=nv/2L
Dispersion
Irms=Imax/v2
Vot+1/2at^2=(V0+v/2)t