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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 work
Intensity
Low voltage to high voltage
N is proportional to 1/?
U=q?v

2. polarized light
Ceq=C1+C2+C3 Veq=V1=V2=V3
Electric fields of all the light waves are oriented in the same direction
Voltage
J=Force*Time=mv - mvo=?p

3. The bigger the cross - section of a resistor..
More flow less resistance
V=kQ/r
Vbulk modulus
V=IR

4. work as it relates to constant force
No net force acting on it
N=c/v
W=Fdcos?
Charge/length

5. energy of photon
E=???=hc/?
J=Force*Time=mv - mvo=?p
(Vo+v)/2
F=q/e0

6. surface tension results from
Ceq=C1+C2+C3 Veq=V1=V2=V3
T=rFsin?
Number of protons in nucleus
Cohesion

7. a lightbulb in a circuit is a
P=IV
Virtual upright
Beta=10Log(I/Io)
Resistor

8. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
U=QV
Fusion
Substance is more dense then water

9. all harmonics have the same
Beta=10Log(I/Io)
Wave speed
Charge/length
Internal resistance is zero voltage=emf

10. atomic mass number represents
2pr
New/old
Hydrostatics
Protons+neutrons

11. tone with shortest period has
Difference between the absolute and atm pressure Pg=P- Patm
V=kq/r
The shortest wavelength
X=(initial horizontal v)(time in air)

12. Newtons 2nd law of motion
image/object
F=ma
373K 100
Incident ray

13. 90
Current*voltage
Sin=v2/2 cos=v2/2
Mass
Sin=1 cos=0

14. work function
Light emitted due to heat
Intensity
F=I(L*B)
Energy required to free electron from given metal

15. plane mirrors create What type of image
Virtual
When in parallel
?=m/v kg/m^3 g/ml g/cm^3
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

16. units for newtons
Is equal to gravitational force
Kg*m/s^2
image/object
Fnet=0 thus Fg=Fs mg=kx

17. period of spring
K+U=constant
W=qv
2pvm/k
E=1/2k(A^2)

18. material with moderate resistance
?L=aL?T
Vbulk modulus
Wave speed
Resistor

19. magnetic field force on current carrying wire
More flow less resistance
F=I(L*B)
Electric fields of all the light waves are oriented in the same direction
?=4L/n

20. magnitude of magnetic field for current carrying wire
None
Beta=
As speed of fluid increases pressure and potential energy decrease
F=Gm1m2/r^2

21. angular frequency of spring ?
?=vk/m=2p??
Moving charge
C=Q/V
Mass

22. only radioactive decay that conserves the nucleus charge
???
Radiation
When velocity of the fluid exceeds critical velocity
Gamma decay

23. resistance in parallel
Neutron is converted into a proton and an electron is emitted
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Resistor
?V=BetaV?T

24. sound waves are what kind of waves
Equilibrium position
Longitudinal
Minimum frequency of light that will cause emission of an electron
???

25. electric field of parallel plate capacitor
Kg*m/s^2
E=V/d
Wave speed
F/A

26. focal length
F=q/e0
1/f=1/o+ 1/i
B=(F/A)/(?V/V)
Y=(F/A)/(?L/L) stress over strain

27. atoms atomic number represents
Number of protons in nucleus
(1/2)?v^2
N*s/m^2
Vo^2+2a(?x)

28. volumetric rate of flow (property)
Constant for closed system independent of changes in area
Converted to extra kinetic energy of the emitted electron
F=Gm1m2/r^2
F=r/2

29. reflection law
Decrease in pressure that fluid exerts on the walls of the container
Angle of incidence=angle of reflection
Upright image
4 Hz

30. for photoelectric material to liberate an electron
Photon energy must be greater than work function of the material
273K 0
Req=R1+R2+R3 Veq=V1+V2+V3
F=1/2(r)

31. cohesion
Force a molecule of liquid feels toward the other molecules of the liquid
Convection
Difference between the mass of nucleus and the sum of nucleons
MRT

32. audible wave frequency
Work/time
20 Hz to 20 -000 Hz
New/old
Diopters

33. wave velocity=
Wave speed
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
???
More rigid material

34. boiling point of H2O in K and C
Energy gained by particle with charge of e when moved through one volt
373K 100
Vo^2+2a(?x)
Derive universal gravitation equation

35. speed of the spring
?=2L/n
C=e(A/d)
V=?A
Convection

36. material with very high resistance
Virtual upright
Insulator
Q=mL
F=xk=mg

37. meaning of Bernouili's equation
E=Pt
As speed of fluid increases pressure and potential energy decrease
Spreading out of light as it passes through a narrow opening
Pascal (Pa) N/m^2

38. force due to electric field on single charge
E=neE n is excess charge
W=mg=?Vg
Force a molecule of liquid feels toward the other molecules of the liquid
U=QV

39. power of sound wave
P=IA
New/old
F=nv/2L
C=Q/V

40. temperature and resistors
Beta=
Virtual
F=xk=mg
Higher temperature increases resistance

41. relate focal length and radius of curvature(r)
image/object
Force and acceleration
F=r/2
J=Force*Time=mv - mvo=?p

42. unit for energy beside J
EV
When velocity of the fluid exceeds critical velocity
U=QV
??=nv/4L

43. under content acceleration v^2=
Minimum frequency of light that will cause emission of an electron
V=?A
P=1/f
Vo^2+2a(?x)

44. electrical power
N*s/m^2
P=IV
?=2L/n
Incident ray

45. body in translational equilibrium
Hydrostatics
No net force acting on it
(1/2)?v^2
W=qv

46. under constant acceleration V(average)=
(Vo+v)/2
Emf is negative
Zero resistance
2

47. voltage of AC
Body in motion remains in motion unless net force acts upon it
Electric fields of all the light waves are oriented in the same direction
Vrms=Vmax/v2
?=2L/n

48. to find acceleration due to gravity
Derive universal gravitation equation
Insulator
New/old
F=qvBetasin?

49. units for power
WATTS
Sin=1 cos=0
Wave speed
3

50. resistance in series
Yield strength
Insulator
J=Force*Time=mv - mvo=?p
Req=R1+R2+R3 Veq=V1+V2+V3