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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. (-) magnification signifies
1/2mv^2
Beta=
Neutron is converted into a proton and an electron is emitted
Inverted image

2. kirchhoff's rule -- travel from negative to positive
Diopters
E=kQ/r^2
Vo^2+2a(?x)
Emf is positive

3. viscosity
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Fluid resistance to flow
C=eoKA/D
3

4. a lightbulb in a circuit is a
Resistor
B=
(Vo+v)/2
E=neE n is excess charge

5. a virtual image has what kind of image distance
Incident light is used to free electrons from a metal
I=P/A
Negative
A=v^2/r

6. relate velocities and displacement 2 ways
Frequency
Increase length increase resistance
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
V^2=vo^2+2a?x ?x=1/2(vo+v)t

7. under content acceleration v^2=
Vo^2+2a(?x)
E=???=hc/?
?=2L/n
N*s/m^2

8. s
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Vsin?
Virtual upright
Charge/area

9. focal for spherical mirrors
Increases
Substance is more dense then water
F=1/2(r)
Angle of incidence=angle of reflection

10. freezing point of H2O in K and C
P=IV
Energy of electrons
273K 0
Farad 1 F= 1 c/v

11. formula for impulse (J)
T=rFsin?
F=1/2(r)
Dispersion
J=Force*Time=mv - mvo=?p

12. dielectric material
U=q?v
I=?q/?t
Will never decrease capacitance
Spreading out of light as it passes through a narrow opening

13. Hooke's Law
When velocity of the fluid exceeds critical velocity
F=- kx
Proton or neutron
T=rF where F is proportional to mass and r is distance from pivot

14. speed of sound in proportional to...
Moving charge
Vbulk modulus
W=qv
F/A

15. wavelength in string
N2>n1
??=nv/4L
?=2L/n
T=rF where F is proportional to mass and r is distance from pivot

16. audible wave frequency
The liquid itself not the object
Ceq=C1+C2+C3 Veq=V1=V2=V3
Zero resistance
20 Hz to 20 -000 Hz

17. period of spring
Equilibrium position
2pvm/k
E=Pt
Virtual upright

18. location of minima in diffraction pattern
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
A sin?=n?
1000 kg/m^3 or 1 g/cm^3
373K 100

19. under what conditions will light undergo total internal reflection
Ampere (1C/s)
Vo^2+2a(?x)
N=c/v
Light travels from high n to lower n with an angle of incidence greater than the critical angle

20. Newtons 2nd law of motion
F=nv/2L
Sin=1 cos=0
Yield strength
F=ma

21. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
Dispersion
Kg*m/s^2
???

22. frequency of spring is inversely proportional to...
F/A
Body in motion remains in motion unless net force acts upon it
Mass
Force applied parallel to objects surface

23. capacitors in parallel
Emf is positive
Ceq=C1+C2+C3 Veq=V1=V2=V3
A sin?=n?
Substance is more dense then water

24. direction of electric field created by charge
Points away from + and toward -
Yield strength
A sin?=n?
Body in motion remains in motion unless net force acts upon it

25. 60
Sin=v3/2 cos=1/2
Protons+neutrons
E*r
Spreading out of light as it passes through a narrow opening

26. z in isotopic notation
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Electric fields of all the light waves are oriented in the same direction
Number of protons
None

27. work as it relates to constant force
Charge/area
Q=mc?t
W=Fdcos?
F=- kx

28. convex mirror
U=QV
Image is always upright virtual and smaller
Work/time
Dispersion

29. reflection law
Nsin?incident=nsin?refraction
Sin=0 cos=-1
Angle of incidence=angle of reflection
Upright image

30. Gauss's Law
T=rFsin?
F=q/e0
U=1/2QV=1/2CV^2=1/2Q^2/C
Protons+neutrons

31. current of AC
P=IV
Irms=Imax/v2
F=- kx
Force a molecule of liquid feels toward the other molecules of the liquid

32. frequency of light given wavelength
Energy gained by particle with charge of e when moved through one volt
?=4L/n
Frequency
F=c/?

33. under constant acceleration V(average)=
J=Force*Time=mv - mvo=?p
Energy gained by particle with charge of e when moved through one volt
Difference between the absolute and atm pressure Pg=P- Patm
(Vo+v)/2

34. 'real' side of a lens
E=neE n is excess charge
Side opposite From which light originates
Buoyant force equals blocks weight
Photon energy must be greater than work function of the material

35. formula for solution which is diluted related to initial concentration
Minimum frequency of light that will cause emission of an electron
M1v1=m2v2
WATTS
20 Hz to 20 -000 Hz

36. difference between Calorie and calorie
Q=CV
Emf is negative
A Calorie is a nutritional term equal to 1000 calories
C=e(A/d)

37. if cell is not driving current
Virtual upright
Force a molecule of liquid feels toward the other molecules of the liquid
Internal resistance is zero voltage=emf
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

38. resistance in series
Req=R1+R2+R3 Veq=V1+V2+V3
Decrease in pressure that fluid exerts on the walls of the container
Increases
Gas to solid

39. electrolyte
Dispersion
Irms=Imax/v2
W=qv
Solute whose solution is conductive

40. material with low resistance
C=e(A/d)
?L=aL?T
Longitudinal
Conductor

41. gravitational force formula
Virtual upright
Spring constant
F=Gm1m2/r^2
R=pL/A

42. velocity for a wave
Virtual
V=???
Holds whenever we have a change in energy ?E=?KE+?PE=0
EV

43. electric work
U=q?v
4 Hz
Sin=0 cos=-1
Gamma decay

44. type of heat transfer involving the physical motion of heated material
Farad 1 F= 1 c/v
Convection
Upright image
Incident light is used to free electrons from a metal

45. Find electric potential given electric field
Fluid resistance to flow
Rate of doing work
MRT
E*r

46. volumetric rate of flow (property)
F=r/2
?=2L/n
?V=BetaV?T
Constant for closed system independent of changes in area

47. What is heat of fusion
Amount of energy required for phase change from solid to liquid
Light travels from high n to lower n with an angle of incidence greater than the critical angle
image/object
Number of protons in nucleus

48. find energy in circuit
V=kQ/r
Will never decrease capacitance
E=Pt
E=kQ/r^2

49. suppose a block is floating in H2O - What does this mean
F=q/e0
V=IR
Buoyant force equals blocks weight
F=xk=mg

50. calculate lens power
None
P=1/f
Low voltage to high voltage
Farad 1 F= 1 c/v