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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. formula for heat gained or lost during phase change
F=- kx
Q=mL
Conduction
F=I(L*B)

2. parabolic mirror: image at focal point
?V=BetaV?T
No image is formed
Frequency
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

3. power dissipated by resistor (3 ways)
Incident ray
2 times the focal distance
P=i^2R=V^2/R=IV
3a=Beta

4. v2/2
F=nv/2L
Charge/length
Substance is less dense then water
Approx .7

5. threshold frequency (photoelectric effect)
W=qv
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Minimum frequency of light that will cause emission of an electron
F=- F

6. excess energy of a photon is...
Ceq=C1+C2+C3 Veq=V1=V2=V3
Converted to extra kinetic energy of the emitted electron
Equilibrium position
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

7. type of heat transfer involving the physical motion of heated material
Sin=1/2 cos=v3/2
E=V/d
100% of the object will be submerged but will not sink
Convection

8. frequency in string
F=nv/2L
WATTS
Will never decrease capacitance
Longitudinal

9. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
Light emitted due to heat
Centrioles
Negative

10. when spring is at rest
Fnet=0 thus Fg=Fs mg=kx
More flow less resistance
Force and acceleration
?=2L/n

11. electric potential energy
U=QV
Radiation
Convection
Fs=

12. absolute zero in K and C
Charge remains constant
None
0K -273
Force a molecule of liquid feels toward the other molecules of the liquid

13. under what conditions will light undergo total internal reflection
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Frequency
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
X=(initial horizontal v)(time in air)

14. frequency of light given wavelength
Q=mc?t
None
F=c/?
F=I(L*B)

15. units for power of a lens
T=rFsin?
Surface
V=ED
Diopters

16. nucleon
Derive universal gravitation equation
Proton or neutron
1/f=1/o+ 1/i
Coulomb=amphere*sec

17. horizontal velocity of projectile
Vcos?
I=P/A
K+U=constant
Light travels from high n to lower n with an angle of incidence greater than the critical angle

18. convex mirror
Vbulk modulus
Image is always upright virtual and smaller
Points away from + and toward -
Kg*m/s^2

19. freezing point of H2O in K and C
Energy required to free electron from given metal
273K 0
Holds whenever we have a change in energy ?E=?KE+?PE=0
F=r/2

20. material with low resistance
F=c/?
Conductor
Points away from + and toward -
When velocity of the fluid exceeds critical velocity

21. when unlike charges move away from each other - U of the system
Real image
W'=?E=?KE+?U
The liquid itself not the object
Increases

22. period of pendulum
700nm -400nm
Moving charge
2pvL/g
F/A

23. Log(100)=
2
Vo^2+2a(?x)
1/2mv^2
Req=R1+R2+R3 Veq=V1+V2+V3

24. dielectric material
P=m?v
Radiation
Will never decrease capacitance
F=r/2

25. s
Pascal (Pa) N/m^2
??=nv/4L
Virtual
Charge/area

26. weight
3a=Beta
More flow less resistance
W=mg=?Vg
W=Fdcos?

27. sound level
When velocity of the fluid exceeds critical velocity
Beta=10Log(I/Io)
Upright image
700nm -400nm

28. SI unit for pressure
No image is formed
F=r/2
Pascal (Pa) N/m^2
A sin?=n?

29. units for capacitance
Ampere (1C/s)
F=ma
R=pL/A
Farad 1 F= 1 c/v

30. equation for static friction
Irms=Imax/v2
Yield strength
Nsin?incident=nsin?refraction
Fs=

31. ideal ammeter
Zero resistance
Real inverted image
Internal resistance is zero voltage=emf
None

32. work done by non conservative force

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33. osmotic pressure formula
MRT
1/2mv^2
Voltage
Resistor

34. power (in general)
4 Hz
Ceq=C1+C2+C3 Veq=V1=V2=V3
Vot+1/2at^2=(V0+v/2)t
Work/time

35. calculate binding energy
It jumps to higher energy level
(mass defect)(speed of light)^2
WATTS
3

36. capacitance of simple parallel plate (not according to Ohms)
C=e(A/d)
T=rF where F is proportional to mass and r is distance from pivot
Spreading out of light as it passes through a narrow opening
Voltage

37. z in isotopic notation
2pr
?L=aL?T
Number of protons
Charge/length

38. magnetic force
F=qvBetasin?
E=Pt
A sin?=n?
Light emitted due to heat

39. determine spring constant
F=xk=mg
700nm -400nm
Vbulk modulus
Weighted average of the masses of the element

40. kirchhoff's rule -- travel from negative to positive
When ?=90 b/c sin90=1
C=eoKA/D
Fs=
Emf is positive

41. length of resistor
Increase length increase resistance
Fs=
Sin=v2/2 cos=v2/2
Energy gained by particle with charge of e when moved through one volt

42. equation for kinetic friction
A=v^2/r
Fk=
Dispersion
?=2L/n

43. -Beta- decay
Spring constant
E=kQ/r^2
Neutron is converted into a proton and an electron is emitted
T=rF where F is proportional to mass and r is distance from pivot

44. force experience by stationary particle in magnetic field
No image is formed
It jumps to higher energy level
Number of protons
None

45. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
Buoyant force equals blocks weight
No image is formed
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

46. adhesion
Force a molecule of liquid feels toward molecules of some other substance
P=m?v
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Force a molecule of liquid feels toward the other molecules of the liquid

47. small moduli value
Farad 1 F= 1 c/v
More rigid material
Coulomb=amphere*sec
More malleable material

48. power is defined as
Rate of doing work
Vot+1/2at^2=(V0+v/2)t
Intensity
Derive universal gravitation equation

49. amplitude of spring is proportional to...
Force and acceleration
(Vo+v)/2
Vbulk modulus
More malleable material

50. parabolic mirror: object between c and f - image is...
Bigger and beyond original object
V=?A
Buoyant force equals blocks weight
Vot+1/2at^2=(V0+v/2)t