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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. torque formula
Higher temperature increases resistance
Force a molecule of liquid feels toward molecules of some other substance
Light emitted due to heat
T=rFsin?

2. under what conditions will light undergo total internal reflection
P=IA
Intensity
Vsin?
Light travels from high n to lower n with an angle of incidence greater than the critical angle

3. kirchhoff's rule -- travel from positive to negative
Fnet=0 thus Fg=Fs mg=kx
V=kq/r
Emf is negative
The liquid itself not the object

4. What is heat of fusion
F=qvBetasin?
Amount of energy required for phase change from solid to liquid
Real image
Q=CV

5. charge of beta particles
373K 100
Negative
F=q/e0
Points away from + and toward -

6. deposition
Sin=0 cos=1
Gas to solid
Nsin?incident=nsin?refraction
Frequency

7. ?
No net force acting on it
R=pL/A
Charge/length
Points away from + and toward -

8. equation for static friction
Splitting of atomic nuclei
E=1/2k(A^2)
E=V/d
Fs=

9. units for capacitance
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Will never decrease capacitance
?x=1/2(v+vo)t
Farad 1 F= 1 c/v

10. period of spring
Virtual upright
Amount of energy required for phase change from solid to liquid
2pvm/k
?V=BetaV?T

11. work as it relates to constant force
A sin?=n?
Conductor
W=Fdcos?
Zero resistance

12. speed of light in a vacuum (c) =
V=kQ/r
0K -273
???
Voltage

13. capacitance equation in circuit
C=Q/V
Difference between the absolute and atm pressure Pg=P- Patm
Mass number
Emf is negative

14. increase in velocity of a fluid is associated with
B=
Beta=
Radiation
Decrease in pressure that fluid exerts on the walls of the container

15. boiling point of H2O in K and C
Number of protons
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Energy required to free electron from given metal
373K 100

16. when spring is at rest
100% of the object will be submerged but will not sink
When velocity of the fluid exceeds critical velocity
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Fnet=0 thus Fg=Fs mg=kx

17. reflection law
Angle of incidence=angle of reflection
Fs=
The shortest wavelength
Protons+neutrons

18. frequency of spring is proportional to...
R=pL/A
Sin=0 cos=1
Spring constant
(1/2)?v^2

19. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
None
Substance is less dense then water
Q=mc?t

20. circumference of a circle
700nm -400nm
Virtual upright
Vot+1/2at^2=(V0+v/2)t
2pr

21. When is voltage constant across capacitors
Force applied parallel to objects surface
Higher temperature increases resistance
When in parallel
Real image

22. atoms atomic number represents
Approx .7
Number of protons in nucleus
Minimum frequency of light that will cause emission of an electron
F=ma

23. electromotive force
Counterclockwise is + clockwise is -
?V=BetaV?T
Internal resistance is zero voltage=emf
Pressure to move - voltage when no charge is moving between 2 terminals

24. magnetic field of solenoid
(mass defect)(speed of light)^2
B=
(1/2)?v^2
Pascal (Pa) N/m^2

25. Formula for centripetal force
Real inverted
F=mv^2/r
Solute whose solution is conductive
T=rFsin?

26. adhesion
Force a molecule of liquid feels toward molecules of some other substance
Spreading out of light as it passes through a narrow opening
Insulator
MRT

27. diffraction
image/object
Y=(F/A)/(?L/L) stress over strain
V=kq/r
Spreading out of light as it passes through a narrow opening

28. wave velocity=
???
Fusion
C=e(A/d)
V^2=vo^2+2a?x ?x=1/2(vo+v)t

29. what would a specific gravity of 1 indicate
Mass
F=nv/2L
100% of the object will be submerged but will not sink
WATTS

30. s
Charge/area
None
F=c/?
E*r

31. equation for v between two parallel plates
N2>n1
Kg*m/s^2
Increase length increase resistance
V=ED

32. As current flows through a resistor
F=ma
V=?A
Charge remains constant
J=Force*Time=mv - mvo=?p

33. velocity for a wave
V=???
Centrioles
Diopters
C=Q/V

34. under constant acceleration - v=
Vo+at
A sin?=n?
Coulomb=amphere*sec
Yield strength

35. mass defect
Frequency
Minimum frequency of light that will cause emission of an electron
Difference between the mass of nucleus and the sum of nucleons
Frequency

36. work function
Zero resistance
Substance is more dense then water
Energy required to free electron from given metal
V=kq/r

37. formula for impulse (J)
???
J=Force*Time=mv - mvo=?p
Neutron is converted into a proton and an electron is emitted
V/??

38. Log(100)=
2
F=c/?
N2>n1
Inverted image

39. find factor by which something has been changed
New/old
It jumps to higher energy level
Converted to extra kinetic energy of the emitted electron
?=4L/n

40. When does turbulence in a fluid arise
Pascal (Pa) N/m^2
V/??
When velocity of the fluid exceeds critical velocity
Longitudinal

41. total horizontal distance traveled by projectile
B=(F/A)/(?V/V)
Constant for closed system independent of changes in area
X=(initial horizontal v)(time in air)
V=kQ/r

42. magnitude of magnetic field for current carrying wire
3
P=i^2R=V^2/R=IV
Beta=
Frequency

43. difference between Calorie and calorie
Energy required to free electron from given metal
A Calorie is a nutritional term equal to 1000 calories
N*s/m^2
F1/A1=F2/A2

44. Newtons 2nd law of motion
F=ma
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Holds whenever we have a change in energy ?E=?KE+?PE=0
Q=mc?t

45. frequency in string
F=nv/2L
W=mg=?Vg
Vrms=Vmax/v2
Difference between the absolute and atm pressure Pg=P- Patm

46. momentum
Q=CV
Dispersion
P=IA
P=m?v

47. increasing emf has What effect on ?G
A Calorie is a nutritional term equal to 1000 calories
V=kQ/r
Makes ?G more negative thus more spontaneous
Force a molecule of liquid feels toward the other molecules of the liquid

48. to find acceleration due to gravity
P=m?v
Amount of energy required for phase change from solid to liquid
V=kq/r
Derive universal gravitation equation

49. (+) magnification signifies
Upright image
Convection
Bigger and beyond original object
Mass

50. fission
Splitting of atomic nuclei
W=mg=?Vg
Mass
F=r/2