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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. a in isotopic notation
Vsin?
No net force acting on it
Ceq=C1+C2+C3 Veq=V1=V2=V3
Mass number

2. when unlike charges move away from each other - U of the system
Upright image
Increases
J=Force*Time=mv - mvo=?p
Force and acceleration

3. for photoelectric material to liberate an electron
F=ma
Body in motion remains in motion unless net force acts upon it
(Vo+v)/2
Photon energy must be greater than work function of the material

4. Newtons 3rd law of motion
Vot+1/2at^2=(V0+v/2)t
?=4L/n
F=I(L*B)
F=- F

5. across capacitor what remains constant
Points away from + and toward -
?=vk/m=2p??
Voltage
1/2mv^2

6. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
Ceq=C1+C2+C3 Veq=V1=V2=V3
Derive universal gravitation equation
P=1/f

7. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
C=e(A/d)
No net force acting on it
Fluid resistance to flow

8. v2/2
Gamma decay
Slower light will travel
F=- kx
Approx .7

9. units for viscosity
Increase length increase resistance
N*s/m^2
E=1/2k(A^2)
Fs=

10. formula for heat gained or lost during phase change
Internal resistance is zero voltage=emf
Angle of incidence=angle of reflection
Force a molecule of liquid feels toward the other molecules of the liquid
Q=mL

11. ?
Negative
Charge/length
Sin=v2/2 cos=v2/2
3a=Beta

12. magnitude of magnetic field for current carrying wire
The liquid itself not the object
Increases
Beta=
Incident light is used to free electrons from a metal

13. electric field equation
Spreading out of light as it passes through a narrow opening
E=kQ/r^2
None
Internal resistance is zero voltage=emf

14. to find acceleration due to gravity
?=vk/m=2p??
Side opposite From which light originates
V=???
Derive universal gravitation equation

15. units for power of a lens
U=(1/2)kx^2
F=qvBetasin?
Protons+neutrons
Diopters

16. power dissipated by resistor (3 ways)
New/old
P=i^2R=V^2/R=IV
Fusion
Kg*m/s^2

17. electrical power
?=vk/m=2p??
Mass
P=IV
Increase length increase resistance

18. buoyant force is due to...
The liquid itself not the object
A Calorie is a nutritional term equal to 1000 calories
F1/A1=F2/A2
When velocity of the fluid exceeds critical velocity

19. shear
Force applied parallel to objects surface
Pascal (Pa) N/m^2
700nm -400nm
W'=?E=?KE+?U

20. mass defect
Decrease in pressure that fluid exerts on the walls of the container
Difference between the mass of nucleus and the sum of nucleons
1000 kg/m^3 or 1 g/cm^3
Weighted average of the masses of the element

21. specific gravity greater than one
Substance is more dense then water
700nm -400nm
Current*voltage
0K -273

22. kirchhoff's rule -- travel from positive to negative
Buoyant force equals blocks weight
Side opposite From which light originates
Emf is negative
None

23. absolute zero in K and C
0K -273
Diopters
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Beta=

24. open pipe wavelength
Beta=
W=qv
?=2L/n
Solute whose solution is conductive

25. magnetic field force on current carrying wire
?=2L/n
F=I(L*B)
U=1/2QV=1/2CV^2=1/2Q^2/C
Radiation

26. circumference of a circle
2pr
Incident ray
?x=1/2(v+vo)t
Work/time

27. period of pendulum
2pvm/k
B=
2pvL/g
Coulomb=amphere*sec

28. what creates a magnetic field
W=mg=?Vg
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
V=kQ/r
Moving charge

29. 30
Convection
Increases
Sin=1/2 cos=v3/2
3a=Beta

30. intensity of sound
Y=(F/A)/(?L/L) stress over strain
I=P/A
?=2L/n
Virtual upright

31. speed of the spring
V=?A
F=- kx
Low voltage to high voltage
Approx .7

32. work as product of pressure and volume change
Coulomb=amphere*sec
Mass number
W'=?E=?KE+?U
F1/A1=F2/A2

33. (+) magnification signifies
Nsin?incident=nsin?refraction
Splitting of atomic nuclei
Upright image
Vo+at

34. Log(1000)=
3
Charge remains constant
2pvm/k
???

35. energy of moving proton
1/2mv^2
N2>n1
Intensity
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

36. magnetic field of solenoid
B=
W=Fdcos?
Substance is less dense then water
Kg*m/s^2

37. charge on the plates of a capacitor
Protons+neutrons
Side opposite From which light originates
Q=CV
U=(1/2)kx^2

38. relate focal length and radius of curvature(r)
F=r/2
Virtual upright smaller
?=2L/n
V/??

39. equation relating heat gained and temperature change
E=???=hc/?
Conductor
Q=mc?t
V=kQ/r

40. sound waves are what kind of waves
Real inverted
?=4L/n
Longitudinal
P=IV

41. electric flux
F=E*A
V=?A
Pressure to move - voltage when no charge is moving between 2 terminals
F=mv^2/r

42. period of spring
Beta=
None
Charge/length
2pvm/k

43. splitting of white light in a prim is an example of...
Neutron is converted into a proton and an electron is emitted
Insulator
Frequency
Dispersion

44. relate charge and current
W=qv
C=Q/V
P=IA
Coulomb=amphere*sec

45. relationship between linear thermal expansion and volumetric thermal expansion
Mass number
T=rFsin?
Fluid resistance to flow
3a=Beta

46. wave velocity=
When in parallel
???
Upright image
Energy required to free electron from given metal

47. adhesion
Protons+neutrons
Force a molecule of liquid feels toward molecules of some other substance
I=?q/?t
Is equal to gravitational force

48. The bigger the cross - section of a resistor..
N1>n2
F=qvBetasin?
More flow less resistance
E=???=hc/?

49. angular frequency of spring ?
N=c/v
Hydrostatics
Increases
?=vk/m=2p??

50. negative charge moves spontaneously from
Irms=Imax/v2
B=
Low voltage to high voltage
image/object