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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. In what position does spring has its greatest speed
F=qvBetasin?
C=eoKA/D
F=- F
Equilibrium position

2. The bigger the cross - section of a resistor..
Pressure to move - voltage when no charge is moving between 2 terminals
Current*voltage
More flow less resistance
Negative

3. polarized light
2pvm/k
???
Solute whose solution is conductive
Electric fields of all the light waves are oriented in the same direction

4. focal for spherical mirrors
Diopters
Converted to extra kinetic energy of the emitted electron
F=1/2(r)
Vo^2+2a(?x)

5. Find electric potential given electric field
V=???
E*r
Resistor
K+U=constant

6. type of heat transfer involving the physical motion of heated material
Kg*m/s^2
Mass number
Convection
Neutron is converted into a proton and an electron is emitted

7. relate charge and current
New/old
The liquid itself not the object
Coulomb=amphere*sec
F=nv/2L

8. current of AC
Irms=Imax/v2
Real inverted
Fs=
Nsin?incident=nsin?refraction

9. magnetic field is created by loop wire - What is magnetic field at center of loop
Counterclockwise is + clockwise is -
Slower light will travel
Beta=
Centrioles

10. specific gravity greater than one
Coulomb=amphere*sec
Farad 1 F= 1 c/v
Substance is more dense then water
Insulator

11. intensity of sound
Difference between the absolute and atm pressure Pg=P- Patm
Emf is positive
C=e(A/d)
I=P/A

12. when unlike charges move away from each other - U of the system
T=1/f
Increases
Solid to gas
Real inverted

13. sound level
Negative
Beta=10Log(I/Io)
Rate of doing work
Frequency

14. snell's law derivative
N is proportional to 1/?
Force a molecule of liquid feels toward the other molecules of the liquid
New/old
Diopters

15. electromotive force
Convection
Pressure to move - voltage when no charge is moving between 2 terminals
E=neE n is excess charge
Vo+at

16. when spring is at rest
Bigger and beyond original object
Fnet=0 thus Fg=Fs mg=kx
Emf is positive
Sin=1/2 cos=v3/2

17. weight
I=?q/?t
Real inverted
W=mg=?Vg
Decrease in pressure that fluid exerts on the walls of the container

18. incandescence
F=ma
Sin=0 cos=-1
Light emitted due to heat
B=(F/A)/(?V/V)

19. period of pendulum
Constant for closed system independent of changes in area
Slower light will travel
2pvL/g
Vot+1/2at^2=(V0+v/2)t

20. excess energy of a photon is...
None
Converted to extra kinetic energy of the emitted electron
U=QV
Convection

21. frequency of spring is proportional to...
Ampere (1C/s)
MRT
Spring constant
Number of protons

22. torque formula
Charge/length
Beta=
T=rFsin?
Sin=0 cos=-1

23. volume thermal expansion of a solid
?V=BetaV?T
Req=R1+R2+R3 Veq=V1+V2+V3
Charge/length
Charge/area

24. unit of current
Difference between the absolute and atm pressure Pg=P- Patm
C=e(A/d)
Ampere (1C/s)
?=m/v kg/m^3 g/ml g/cm^3

25. lever arm is halved what happens to torque
2
When in parallel
It is halved
E=1/2k(A^2)

26. speed of sound in proportional to...
2pvm/k
Vbulk modulus
Moving charge
?=2L/n

27. units for capacitance
WATTS
0K -273
Farad 1 F= 1 c/v
Force a molecule of liquid feels toward the other molecules of the liquid

28. work as it relates to constant force
W=Fdcos?
M1v1=m2v2
A Calorie is a nutritional term equal to 1000 calories
Irms=Imax/v2

29. find power in circuit
Voltage
Current*voltage
It jumps to higher energy level
Converted to extra kinetic energy of the emitted electron

30. s
Charge/area
700nm -400nm
EV
?=4L/n

31. visible light wavelength
700nm -400nm
F=xk=mg
4 Hz
Q=mL

32. index of refraction (n) equation
N=c/v
Resistor
Vo+at
V=?A

33. units for power of a lens
4 Hz
Spreading out of light as it passes through a narrow opening
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Diopters

34. frequency in string
0K -273
Spreading out of light as it passes through a narrow opening
F=nv/2L
2 times the focal distance

35. formula for solution which is diluted related to initial concentration
M1v1=m2v2
2pvL/g
Will never decrease capacitance
??=nv/4L

36. in calculating torque - which direction is + and which is
Mass
Farad 1 F= 1 c/v
Counterclockwise is + clockwise is -
Diopters

37. charge of beta particles
Real inverted
F1/A1=F2/A2
F=qvBetasin?
Negative

38. electrolyte
Convection
Solute whose solution is conductive
Frequency
I=P/A

39. equation relating heat gained and temperature change
Charge/length
Angle of incidence=angle of reflection
Perpendicular to each other
Q=mc?t

40. power dissipated by resistor (3 ways)
Diopters
???
P=i^2R=V^2/R=IV
Perpendicular to each other

41. closed pipe wavelength
?=4L/n
E=V/d
Substance is more dense then water
Ampere (1C/s)

42. under constant acceleration V(average)=
Force a molecule of liquid feels toward molecules of some other substance
Fluid resistance to flow
It jumps to higher energy level
(Vo+v)/2

43. surface tension results from
Cohesion
The shortest wavelength
Minimum frequency of light that will cause emission of an electron
Voltage

44. electric work
K+U=constant
T=1/f
U=q?v
???

45. calculate binding energy
(mass defect)(speed of light)^2
E=???=hc/?
Conduction
Is equal to gravitational force

46. light bends away from normal when
Force a molecule of liquid feels toward molecules of some other substance
N1>n2
?x=1/2(v+vo)t
When in parallel

47. v2/2
Light emitted due to heat
N=c/v
Approx .7
C=eoKA/D

48. solves for power lost during transmission (one way)
Mass number
P=i^2r
0K -273
Centrioles

49. unit for energy beside J
EV
Charge/area
None
More rigid material

50. osmotic pressure formula
MRT
3a=Beta
100% of the object will be submerged but will not sink
F=Gm1m2/r^2