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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. closed pipe frequency
Spring constant
??=nv/4L
Gas to solid
Nsin?incident=nsin?refraction

2. incandescence
Incident ray
Vcos?
Light emitted due to heat
W=qv

3. period of spring
???
Perpendicular to each other
2pvm/k
Neutron is converted into a proton and an electron is emitted

4. nucleon
Vot+1/2at^2=(V0+v/2)t
Incident ray
Proton or neutron
Minimum frequency of light that will cause emission of an electron

5. frequency in string
X=(initial horizontal v)(time in air)
Insulator
P=m?v
F=nv/2L

6. intensity of sound
I=P/A
V=???
F=- kx
Photon energy must be greater than work function of the material

7. focal for spherical mirrors
F=1/2(r)
Substance is less dense then water
E=1/2k(A^2)
Centrioles

8. The bigger the cross - section of a resistor..
More flow less resistance
Proton or neutron
Is equal to gravitational force
N=c/v

9. plane mirrors create What type of image
2
Beta=
Energy gained by particle with charge of e when moved through one volt
Virtual

10. work done by non conservative force

11. unit for energy beside J
Electric fields of all the light waves are oriented in the same direction
EV
C=Q/V
1000 kg/m^3 or 1 g/cm^3

12. determine spring constant
Increase length increase resistance
373K 100
F=xk=mg
Image is always upright virtual and smaller

13. if cell is not driving current
W=Fdcos?
P=i^2r
Internal resistance is zero voltage=emf
Conduction

14. sound level
P=IV
Beta=10Log(I/Io)
Virtual
F=r/2

15. youngs modulus
Nsin?incident=nsin?refraction
Beta=10Log(I/Io)
Frequency
Y=(F/A)/(?L/L) stress over strain

16. object placed beyond focal point in converging lens create What type of image
Real inverted
Farad 1 F= 1 c/v
Virtual upright
Angle of incidence=angle of reflection

17. max frequency of X- ray depends ONLY on...
(1/2)?v^2
Angle of incidence=angle of reflection
373K 100
Energy of electrons

18. type of heat transfer involving the physical motion of heated material
Hydrostatics
Charge remains constant
Convection
???

19. ?
Neutron is converted into a proton and an electron is emitted
?x=1/2(v+vo)t
Low voltage to high voltage
Charge/length

20. increase in velocity of a fluid is associated with
3a=Beta
Decrease in pressure that fluid exerts on the walls of the container
Equilibrium position
Protons+neutrons

21. calculate lens power
P=1/f
B=
U=(1/2)kx^2
A Calorie is a nutritional term equal to 1000 calories

22. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
373K 100
Vbulk modulus
V=?A

23. a lightbulb in a circuit is a
Resistor
U=1/2QV=1/2CV^2=1/2Q^2/C
1/f=1/o+ 1/i
It jumps to higher energy level

24. work as product of pressure and volume change
Degree=p/180 radian
V/??
F1/A1=F2/A2
F=E*A

25. body in translational equilibrium
No net force acting on it
Vcos?
Sin=v3/2 cos=1/2
E=???=hc/?

26. potential energy of spring
P=i^2r
The shortest wavelength
F=E*A
U=(1/2)kx^2

27. tone with shortest period has
V=ED
The shortest wavelength
Radiation
0K -273

28. circumference of a circle
Protons+neutrons
Vcos?
2pr
N1>n2

29. study of fluids at rest
Fs=
More rigid material
Hydrostatics
X=(initial horizontal v)(time in air)

30. Bernoulli's equation
Sin=v2/2 cos=v2/2
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Real image
Image is always upright virtual and smaller

31. speed of sound in proportional to...
Vbulk modulus
373K 100
Real image
Bigger and beyond original object

32. continuity equation*
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Coulomb=amphere*sec
?=2L/n
2

33. snell's law derivative
As speed of fluid increases pressure and potential energy decrease
F=q/e0
None
N is proportional to 1/?

34. energy of moving proton
V=kQ/r
Spring constant
P=1/f
1/2mv^2

35. point of shape change beyond which a material can go back to normal
Vrms=Vmax/v2
B=
Yield strength
Longitudinal

36. specific gravity greater than one
Beta=
Substance is more dense then water
Slower light will travel
Light travels from high n to lower n with an angle of incidence greater than the critical angle

37. gauge pressure in relation to the others
Fnet=0 thus Fg=Fs mg=kx
Difference between the absolute and atm pressure Pg=P- Patm
Increases
F=Gm1m2/r^2

38. all harmonics have the same
Energy of electrons
Wave speed
None
?=2L/n

39. Electric Potential equation
1000 kg/m^3 or 1 g/cm^3
Energy required to free electron from given metal
T=rFsin?
V=kQ/r

40. increasing emf has What effect on ?G
Body in motion remains in motion unless net force acts upon it
Higher temperature increases resistance
Real inverted image
Makes ?G more negative thus more spontaneous

41. volume thermal expansion of a solid
?V=BetaV?T
Sin=1/2 cos=v3/2
Q=mL
P=IA

42. magnification=
None
image/object
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Vo^2+2a(?x)

43. unit of current
Real image
Light emitted due to heat
Ampere (1C/s)
MRT

44. find factor by which something has been changed
New/old
(1/2)?v^2
Beta=
Resistor

45. temperature and resistors
V/??
(mass defect)(speed of light)^2
Higher temperature increases resistance
Incident ray

46. what would a specific gravity of 1 indicate
F1/A1=F2/A2
100% of the object will be submerged but will not sink
Decrease in pressure that fluid exerts on the walls of the container
As speed of fluid increases pressure and potential energy decrease

47. a in isotopic notation
It is halved
Mass number
Intensity
Amount of energy required for phase change from solid to liquid

48. open pipe frequency
?V=BetaV?T
E=???=hc/?
Charge/area
F=nv/2L

49. In what position does spring has its greatest speed
Energy required to free electron from given metal
Number of protons
Substance is less dense then water
Equilibrium position

50. What is displacement equation
Coulomb=amphere*sec
Sin=0 cos=-1
Upright image
?x=1/2(v+vo)t