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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. small moduli value
R=pL/A
More malleable material
Decrease in pressure that fluid exerts on the walls of the container
When in parallel

2. power dissipated by resistor (3 ways)
V/??
Longitudinal
P=i^2R=V^2/R=IV
Rate of doing work

3. v2/2
B=(F/A)/(?V/V)
Virtual
Approx .7
V=???

4. open pipe wavelength
Rate of doing work
?=2L/n
F=- kx
Upright image

5. z in isotopic notation
?L=aL?T
Charge/area
Number of protons
Intensity

6. negative charge moves spontaneously from
Low voltage to high voltage
(mass defect)(speed of light)^2
N1>n2
K+U=constant

7. resistance in series
Req=R1+R2+R3 Veq=V1+V2+V3
Charge remains constant
N1>n2
K+U=constant

8. type of heat transfer involving the physical motion of heated material
MRT
Convection
V=?A
Proton or neutron

9. wave velocity=
Body in motion remains in motion unless net force acts upon it
The shortest wavelength
???
Q=CV

10. 60
Number of protons in nucleus
Sin=v3/2 cos=1/2
Emf is positive
Counterclockwise is + clockwise is -

11. sound waves are what kind of waves
Longitudinal
T=rF where F is proportional to mass and r is distance from pivot
2
Charge remains constant

12. bulk modulus
N is proportional to 1/?
Sin=0 cos=-1
B=(F/A)/(?V/V)
Negative

13. speed of the spring
Beta=
Spreading out of light as it passes through a narrow opening
V=?A
Spring constant

14. power (in general)
Proton or neutron
F=nv/2L
700nm -400nm
Work/time

15. a virtual image has what kind of image distance
Minimum frequency of light that will cause emission of an electron
As speed of fluid increases pressure and potential energy decrease
Negative
Higher temperature increases resistance

16. magnetic field of solenoid
B=
Virtual upright
C=e(A/d)
Wave speed

17. force experienced by moving charge traveling parallel or antiparallel to magnetic field
It jumps to higher energy level
F=- kx
New/old
None

18. work function
Farad 1 F= 1 c/v
Charge/length
Energy required to free electron from given metal
Image is always upright virtual and smaller

19. amplitude of spring is proportional to...
F=I(L*B)
Force and acceleration
Light emitted due to heat
F=r/2

20. difference between Calorie and calorie
T=rFsin?
??=nv/4L
A Calorie is a nutritional term equal to 1000 calories
Frequency

21. if cell is not driving current
Resistor
Internal resistance is zero voltage=emf
Irms=Imax/v2
V^2=vo^2+2a?x ?x=1/2(vo+v)t

22. vertical velocity of projectile
E=???=hc/?
V=?A
Vsin?
Frequency

23. voltage of AC
W'=?E=?KE+?U
Q=mL
Dispersion
Vrms=Vmax/v2

24. kirchhoff's rule -- travel from negative to positive
Emf is positive
Ceq=C1+C2+C3 Veq=V1=V2=V3
Longitudinal
P=i^2R=V^2/R=IV

25. when spring is at rest
Fnet=0 thus Fg=Fs mg=kx
E=kQ/r^2
2pr
Mass number

26. 'real' side of a lens
Side opposite From which light originates
?=m/v kg/m^3 g/ml g/cm^3
Holds whenever we have a change in energy ?E=?KE+?PE=0
Zero resistance

27. work as product of pressure and volume change
Mass number
373K 100
V=?A
F1/A1=F2/A2

28. 180
Inverted image
R=pL/A
Sin=0 cos=-1
Fs=

29. equation for v between two parallel plates
700nm -400nm
P=m?v
V=ED
Amount of energy required for phase change from solid to liquid

30. focal length
Charge/area
1/f=1/o+ 1/i
Beta=10Log(I/Io)
Rate of doing work

31. for photoelectric material to liberate an electron
Photon energy must be greater than work function of the material
Rate of doing work
Holds whenever we have a change in energy ?E=?KE+?PE=0
?x=1/2(v+vo)t

32. (+) magnification signifies
???
2pvm/k
Upright image
Approx .7

33. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
Makes ?G more negative thus more spontaneous
Virtual
?V=BetaV?T

34. speed of sound in proportional to...
Insulator
Vbulk modulus
WATTS
Weighted average of the masses of the element

35. work in electromagnetic field
W=qv
P=i^2r
Increase length increase resistance
Force and acceleration

36. larger the index of refraction..
U=QV
P=i^2r
Slower light will travel
Image is always upright virtual and smaller

37. units for viscosity
N*s/m^2
2pvm/k
Sin=1/2 cos=v3/2
(1/2)?v^2

38. charge on the plates of a capacitor
Voltage
Surface
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Q=CV

39. mass defect
Solute whose solution is conductive
Difference between the mass of nucleus and the sum of nucleons
Substance is less dense then water
Converted to extra kinetic energy of the emitted electron

40. frequency of spring is proportional to...
Negative
?=m/v kg/m^3 g/ml g/cm^3
N1>n2
Spring constant

41. to find acceleration due to gravity
Derive universal gravitation equation
???
U=q?v
None

42. light bends toward normal when
???
Rate of doing work
N2>n1
Fk=

43. suppose a block is floating in H2O - What does this mean
B=
Spreading out of light as it passes through a narrow opening
Buoyant force equals blocks weight
Number of protons

44. units for power of a lens
Diopters
Virtual upright smaller
Converted to extra kinetic energy of the emitted electron
E*r

45. electromotive force
4 Hz
F=c/?
W=qv
Pressure to move - voltage when no charge is moving between 2 terminals

46. increase in velocity of a fluid is associated with
Equilibrium position
Decrease in pressure that fluid exerts on the walls of the container
Image is always upright virtual and smaller
?x=1/2(v+vo)t

47. electric potential energy
U=QV
E=V/d
Resistor
Dispersion

48. sublimation
Upright image
Solid to gas
Force a molecule of liquid feels toward the other molecules of the liquid
F=1/2(r)

49. Newtons 1st law of motion
Longitudinal
Body in motion remains in motion unless net force acts upon it
F=E*A
No image is formed

50. gravitational force formula
B=(F/A)/(?V/V)
F=mv^2/r
F=Gm1m2/r^2
Longitudinal