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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. electric field of parallel plate capacitor
Points away from + and toward -
Low voltage to high voltage
E=V/d
Fs=

2. electric field maximum of insulating sphere
N*s/m^2
Surface
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Dispersion

3. work in electromagnetic field
Inverted image
Resistor
W=qv
Current*voltage

4. ?
Centrioles
When in parallel
N=c/v
Charge/length

5. Log(1000)=
More rigid material
Energy gained by particle with charge of e when moved through one volt
Dispersion
3

6. under constant acceleration - v=
Pressure to move - voltage when no charge is moving between 2 terminals
N is proportional to 1/?
Vo+at
Vo^2+2a(?x)

7. diffraction
W=mg=?Vg
I=P/A
Number of protons in nucleus
Spreading out of light as it passes through a narrow opening

8. loudness of sound
V=kq/r
100% of the object will be submerged but will not sink
???
Intensity

9. Electric Potential equation
V=kQ/r
Splitting of atomic nuclei
1/f=1/o+ 1/i
Increases

10. surface tension results from
(Vo+v)/2
Number of protons
Low voltage to high voltage
Cohesion

11. density with units
Charge/length
?=m/v kg/m^3 g/ml g/cm^3
Kg*m/s^2
More malleable material

12. cohesion
Kg*m/s^2
Irms=Imax/v2
Force a molecule of liquid feels toward the other molecules of the liquid
3a=Beta

13. charge of beta particles
Negative
E=kQ/r^2
100% of the object will be submerged but will not sink
Number of protons

14. atomic mass number represents
Protons+neutrons
V=kq/r
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Vcos?

15. force due to electric field on single charge
E=neE n is excess charge
U=q?v
Dispersion
Vo^2+2a(?x)

16. type of image ALWAYS created by diverging (convex) mirror
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Virtual upright smaller
When in parallel
I=P/A

17. for object in SHM E=
V=???
K+U=constant
Sin=1 cos=0
Light travels from high n to lower n with an angle of incidence greater than the critical angle

18. sound waves are what kind of waves
Longitudinal
E=???=hc/?
Constant for closed system independent of changes in area
F=nv/2L

19. 30
Protons+neutrons
Sin=1/2 cos=v3/2
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Photon energy must be greater than work function of the material

20. reflection law
F/A
Gamma decay
Diopters
Angle of incidence=angle of reflection

21. adhesion
Perpendicular to each other
Q=mL
20 Hz to 20 -000 Hz
Force a molecule of liquid feels toward molecules of some other substance

22. specific gravity is less than one
373K 100
Difference between the mass of nucleus and the sum of nucleons
Y=(F/A)/(?L/L) stress over strain
Substance is less dense then water

23. planet orbiting a star - centripetal force
Voltage
Is equal to gravitational force
Substance is less dense then water
V=IR

24. calculate binding energy
Constant for closed system independent of changes in area
Real inverted image
F=c/?
(mass defect)(speed of light)^2

25. audible wave frequency
20 Hz to 20 -000 Hz
B=(F/A)/(?V/V)
Req=R1+R2+R3 Veq=V1+V2+V3
Electric fields of all the light waves are oriented in the same direction

26. incandescence
Light emitted due to heat
1/f=1/o+ 1/i
U=1/2QV=1/2CV^2=1/2Q^2/C
Diopters

27. image created by converging (concave) mirror when object is placed inside focal point
Pascal (Pa) N/m^2
Virtual upright
Neutron is converted into a proton and an electron is emitted
???

28. amplitude of spring is proportional to...
F=1/2(r)
Fluid resistance to flow
Force and acceleration
Light travels from high n to lower n with an angle of incidence greater than the critical angle

29. buoyant force is due to...
Pascal (Pa) N/m^2
Fs=
The liquid itself not the object
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

30. momentum
Sin=v2/2 cos=v2/2
2 times the focal distance
N1>n2
P=m?v

31. continuity equation*
Vo^2+2a(?x)
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Is equal to gravitational force
E=???=hc/?

32. light bends away from normal when
C=e(A/d)
Photon energy must be greater than work function of the material
N1>n2
F=E*A

33. What is displacement equation
???
?x=1/2(v+vo)t
2 times the focal distance
?=m/v kg/m^3 g/ml g/cm^3

34. SI unit for pressure
Low voltage to high voltage
Conductor
Pascal (Pa) N/m^2
Current*voltage

35. large moduli value
More rigid material
Mass number
B=(F/A)/(?V/V)
MRT

36. find voltage (original)
More flow less resistance
V=kq/r
100% of the object will be submerged but will not sink
Beta=

37. Find electric potential given electric field
Virtual upright
T=1/f
E*r
Body in motion remains in motion unless net force acts upon it

38. open pipe wavelength
Sin=1/2 cos=v3/2
?=2L/n
Approx .7
W=mg=?Vg

39. circumference of a circle
2pr
R=pL/A
Sin=1 cos=0
When in parallel

40. electric field and magnetic field are...
B=(F/A)/(?V/V)
F=ma
Perpendicular to each other
Virtual upright smaller

41. temperature and resistors
Virtual
Higher temperature increases resistance
(mass defect)(speed of light)^2
Nsin?incident=nsin?refraction

42. centripetal acceleration
A=v^2/r
None
Nsin?incident=nsin?refraction
F/A

43. process of combing smaller nuclei to create larger nuclei
Body in motion remains in motion unless net force acts upon it
Vsin?
Zero resistance
Fusion

44. unit of current
U=q?v
Ampere (1C/s)
I=?q/?t
Ceq=C1+C2+C3 Veq=V1=V2=V3

45. only radioactive decay that conserves the nucleus charge
Virtual
Gamma decay
F=Gm1m2/r^2
C=Q/V

46. potential energy of spring
Voltage
1000 kg/m^3 or 1 g/cm^3
N*s/m^2
U=(1/2)kx^2

47. larger the index of refraction..
Constant for closed system independent of changes in area
V^2=vo^2+2a?x ?x=1/2(vo+v)t
F=ma
Slower light will travel

48. excess energy of a photon is...
C=eoKA/D
Converted to extra kinetic energy of the emitted electron
Fk=
Y=(F/A)/(?L/L) stress over strain

49. period of spring
It is halved
2pvm/k
Amount of energy required for phase change from solid to liquid
Weighted average of the masses of the element

50. When does turbulence in a fluid arise
Gas to solid
When velocity of the fluid exceeds critical velocity
Resistor
Solid to gas