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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
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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. resistance in series
Req=R1+R2+R3 Veq=V1+V2+V3
Longitudinal
0K -273
F/A

2. planet orbiting a star - centripetal force
Photon energy must be greater than work function of the material
P=IV
Is equal to gravitational force
V^2=vo^2+2a?x ?x=1/2(vo+v)t

3. frequency of spring is proportional to...
Spring constant
U=q?v
Photon energy must be greater than work function of the material
Yield strength

4. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
Beta=
W=mg=?Vg
Sin=1 cos=0

5. open pipe wavelength
Increase length increase resistance
P=1/f
?=2L/n
Sin=v3/2 cos=1/2

6. Newtons 2nd law of motion
Real image
Work/time
Charge/length
F=ma

7. find voltage (original)
Constant for closed system independent of changes in area
F=qvBetasin?
Convection
V=kq/r

8. speed of light in a vacuum (c) =
???
Q=CV
MRT
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

9. mass defect
C=e(A/d)
100% of the object will be submerged but will not sink
Difference between the mass of nucleus and the sum of nucleons
Substance is less dense then water

10. power (in general)
Fk=
F=1/2(r)
F=qvBetasin?
Work/time

11. formula for impulse (J)
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Substance is less dense then water
J=Force*Time=mv - mvo=?p
20 Hz to 20 -000 Hz

12. for photoelectric material to liberate an electron
Energy of electrons
Holds whenever we have a change in energy ?E=?KE+?PE=0
Vsin?
Photon energy must be greater than work function of the material

13. small moduli value
Splitting of atomic nuclei
F=c/?
More malleable material
Photon energy must be greater than work function of the material

14. dielectric material
P=i^2R=V^2/R=IV
Will never decrease capacitance
Amount of energy required for phase change from solid to liquid
More rigid material

15. 30
Constant for closed system independent of changes in area
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
EV
Sin=1/2 cos=v3/2

16. large moduli value
U=QV
Ampere (1C/s)
More rigid material
Virtual upright

17. under content acceleration v^2=
Vo^2+2a(?x)
W=Fdcos?
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Spreading out of light as it passes through a narrow opening

18. magnetic force
T=rFsin?
20 Hz to 20 -000 Hz
F=qvBetasin?
V=IR

19. equation for capacitance with dielectric
Zero resistance
C=eoKA/D
Spring constant
Irms=Imax/v2

20. to find acceleration due to gravity
Derive universal gravitation equation
Q=mL
F=r/2
Low voltage to high voltage

21. 60
Buoyant force equals blocks weight
Sin=v3/2 cos=1/2
U=(1/2)kx^2
Force and acceleration

22. mirror image is on same side as object
Inverted image
(Vo+v)/2
Force applied parallel to objects surface
Real image

23. relate charge and current
Proton or neutron
Increases
Coulomb=amphere*sec
Buoyant force equals blocks weight

24. increase in velocity of a fluid is associated with
T=1/f
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Vo^2+2a(?x)
Decrease in pressure that fluid exerts on the walls of the container

25. speed of sound in proportional to...
Vbulk modulus
??=nv/4L
F=- F
N*s/m^2

26. what creates a magnetic field
F=nv/2L
Virtual upright smaller
Substance is less dense then water
Moving charge

27. object placed beyond focal point in converging lens create What type of image
Real inverted
2pvm/k
C=e(A/d)
Ampere (1C/s)

28. work done by non conservative force

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29. relate focal length and radius of curvature(r)
N2>n1
Coulomb=amphere*sec
F=r/2
Number of protons

30. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Longitudinal
None
?V=BetaV?T
EV

31. magnitude of magnetic field for current carrying wire
Proton or neutron
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Coulomb=amphere*sec
Beta=

32. When is torque maximum
Beta=
Conductor
F=r/2
When ?=90 b/c sin90=1

33. In what position does spring has its greatest speed
Equilibrium position
Gamma decay
Virtual upright smaller
Farad 1 F= 1 c/v

34. focal for spherical mirrors
P=1/f
Neutron is converted into a proton and an electron is emitted
Spreading out of light as it passes through a narrow opening
F=1/2(r)

35. parabolic mirror: object between c and f - image is...
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Gas to solid
Bigger and beyond original object
M1v1=m2v2

36. conservation of energy law
Spring constant
No image is formed
Cohesion
Holds whenever we have a change in energy ?E=?KE+?PE=0

37. dynamic pressure
N=c/v
(1/2)?v^2
E=neE n is excess charge
Beta=

38. atomic mass number represents
Protons+neutrons
P=IV
?=2L/n
image/object

39. fungal cells unlike animals cells do not contain
Vot+1/2at^2=(V0+v/2)t
Centrioles
1/f=1/o+ 1/i
Convection

40. torque formula
F=c/?
T=rFsin?
Side opposite From which light originates
Y=(F/A)/(?L/L) stress over strain

41. Gauss's Law
Makes ?G more negative thus more spontaneous
K+U=constant
F=q/e0
V/??

42. image created by converging (concave) mirror when object is placed inside focal point
T=1/f
Bigger and beyond original object
Spreading out of light as it passes through a narrow opening
Virtual upright

43. angular frequency of spring ?
Charge/area
?=vk/m=2p??
W=qv
E=neE n is excess charge

44. circumference of a circle
???
Slower light will travel
2pr
New/old

45. increasing emf has What effect on ?G
Makes ?G more negative thus more spontaneous
Increase length increase resistance
The shortest wavelength
2

46. resistance in parallel
P=IA
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Incident light is used to free electrons from a metal
P=1/f

47. atoms atomic number represents
273K 0
Number of protons in nucleus
Fk=
Splitting of atomic nuclei

48. closed pipe frequency
Virtual upright
Resistor
??=nv/4L
Force a molecule of liquid feels toward molecules of some other substance

49. period (T) and frequency (f) of a tone are related by
The liquid itself not the object
As speed of fluid increases pressure and potential energy decrease
Pascal (Pa) N/m^2
T=1/f

50. energy of photon
E=???=hc/?
U=(1/2)kx^2
F=- F
E=kQ/r^2