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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. beat frequencies for two frequencies differing by 4 Hz
Real inverted
4 Hz
F=- kx
Number of protons in nucleus

2. volumetric rate of flow (property)
Solid to gas
U=1/2QV=1/2CV^2=1/2Q^2/C
Constant for closed system independent of changes in area
Conductor

3. magnification=
Low voltage to high voltage
Upright image
I=P/A
image/object

4. atomic mass number represents
Q=mL
Real image
Protons+neutrons
Substance is more dense then water

5. focal length
Increases
Inverted image
1/f=1/o+ 1/i
4 Hz

6. study of fluids at rest
B=(F/A)/(?V/V)
Hydrostatics
Vo+at
The liquid itself not the object

7. threshold frequency (photoelectric effect)
Pascal (Pa) N/m^2
Virtual upright smaller
Minimum frequency of light that will cause emission of an electron
E=kQ/r^2

8. parabolic mirror: object between c and f - image is...
Gas to solid
More flow less resistance
Bigger and beyond original object
Dispersion

9. to find acceleration due to gravity
Derive universal gravitation equation
No net force acting on it
20 Hz to 20 -000 Hz
F=I(L*B)

10. bulk modulus
Diopters
B=(F/A)/(?V/V)
No image is formed
Yield strength

11. frequency of spring is inversely proportional to...
Coulomb=amphere*sec
Mass
Charge/area
Image is always upright virtual and smaller

12. find factor by which something has been changed
C=Q/V
Light emitted due to heat
Solute whose solution is conductive
New/old

13. current of AC
F=q/e0
N2>n1
Photon energy must be greater than work function of the material
Irms=Imax/v2

14. kirchhoff's rule -- travel from negative to positive
N=c/v
F=- F
Emf is positive
Sin=0 cos=1

15. object placed inside focal point in converging lens create What type of image
N1>n2
Fk=
N*s/m^2
Virtual upright

16. incandescence
Light emitted due to heat
Coulomb=amphere*sec
Fnet=0 thus Fg=Fs mg=kx
?x=1/2(v+vo)t

17. work function
Energy required to free electron from given metal
Proton or neutron
F=c/?
J=Force*Time=mv - mvo=?p

18. magnitude of current
?=vk/m=2p??
I=?q/?t
Energy required to free electron from given metal
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

19. weight
F=I(L*B)
Slower light will travel
New/old
W=mg=?Vg

20. planet orbiting a star - centripetal force
J=Force*Time=mv - mvo=?p
Electric fields of all the light waves are oriented in the same direction
P=IV
Is equal to gravitational force

21. wavelength in string
Mass number
Zero resistance
?=2L/n
Q=CV

22. point of shape change beyond which a material can go back to normal
Yield strength
Low voltage to high voltage
373K 100
Radiation

23. electrical power
P=IV
Holds whenever we have a change in energy ?E=?KE+?PE=0
WATTS
Increase length increase resistance

24. loudness of sound
Number of protons in nucleus
Substance is less dense then water
Intensity
Diopters

25. find voltage (original)
Real inverted
F=I(L*B)
V=kq/r
Negative

26. 'real' side of a lens
F=nv/2L
N2>n1
T=rFsin?
Side opposite From which light originates

27. type of heat transfer involving the physical motion of heated material
Sin=0 cos=-1
Yield strength
0K -273
Convection

28. plane mirrors create What type of image
Virtual
(1/2)?v^2
Proton or neutron
Vsin?

29. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
F=qvBetasin?
?=4L/n
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

30. 180
Sin=0 cos=-1
Light emitted due to heat
C=eoKA/D
Coulomb=amphere*sec

31. voltage of AC
X=(initial horizontal v)(time in air)
Q=CV
Vrms=Vmax/v2
T=1/f

32. meaning of Bernouili's equation
As speed of fluid increases pressure and potential energy decrease
20 Hz to 20 -000 Hz
Force and acceleration
???

33. frequency of spring is proportional to...
Nsin?incident=nsin?refraction
A=v^2/r
Resistor
Spring constant

34. charge on the plates of a capacitor
Q=CV
2pvL/g
F=xk=mg
E=Pt

35. electromotive force
Energy of electrons
MRT
Pressure to move - voltage when no charge is moving between 2 terminals
Force a molecule of liquid feels toward molecules of some other substance

36. process of combing smaller nuclei to create larger nuclei
Fusion
3
The liquid itself not the object
Sin=0 cos=-1

37. Electric Potential equation
2 times the focal distance
When in parallel
V=kQ/r
?=vk/m=2p??

38. Ohm's Law
Sin=0 cos=-1
Surface
V=IR
Incident ray

39. total energy of spring system
E=1/2k(A^2)
?x=1/2(v+vo)t
T=rF where F is proportional to mass and r is distance from pivot
2 times the focal distance

40. period (T) and frequency (f) of a tone are related by
Real image
N=c/v
T=1/f
F=nv/2L

41. sublimation
Nsin?incident=nsin?refraction
Solid to gas
MRT
N is proportional to 1/?

42. magnetic field of solenoid
373K 100
B=
?=2L/n
?x=1/2(v+vo)t

43. mass defect
F=1/2(r)
Difference between the mass of nucleus and the sum of nucleons
When in parallel
Upright image

44. What is displacement equation
?x=1/2(v+vo)t
Resistor
Virtual
2

45. in calculating torque - which direction is + and which is
Electric fields of all the light waves are oriented in the same direction
Counterclockwise is + clockwise is -
The liquid itself not the object
Decrease in pressure that fluid exerts on the walls of the container

46. units for capacitance
Conduction
Farad 1 F= 1 c/v
Vcos?
Proton or neutron

47. power dissipated by resistor (3 ways)
U=(1/2)kx^2
Number of protons in nucleus
As speed of fluid increases pressure and potential energy decrease
P=i^2R=V^2/R=IV

48. power is defined as
Rate of doing work
F/A
Force applied parallel to objects surface
(Vo+v)/2

49. ?
I=P/A
Charge/length
More malleable material
??=nv/4L

50. negative charge moves spontaneously from
Bigger and beyond original object
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
As speed of fluid increases pressure and potential energy decrease
Low voltage to high voltage