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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. speed of light in a vacuum (c) =
When velocity of the fluid exceeds critical velocity
Virtual upright
???
Upright image

2. relationship between linear thermal expansion and volumetric thermal expansion
F=nv/2L
3a=Beta
1/2mv^2
Protons+neutrons

3. closed pipe wavelength
Sin=1/2 cos=v3/2
Irms=Imax/v2
?=4L/n
R=pL/A

4. period (T) and frequency (f) of a tone are related by
More malleable material
T=1/f
Spreading out of light as it passes through a narrow opening
Moving charge

5. Newtons 3rd law of motion
Pascal (Pa) N/m^2
Diopters
F=- F
20 Hz to 20 -000 Hz

6. Log(100)=
2
P=m?v
New/old
B=(F/A)/(?V/V)

7. volume thermal expansion of a solid
M1v1=m2v2
100% of the object will be submerged but will not sink
N is proportional to 1/?
?V=BetaV?T

8. meaning of Bernouili's equation
As speed of fluid increases pressure and potential energy decrease
Internal resistance is zero voltage=emf
R=pL/A
Incident ray

9. equation relating heat gained and temperature change
Q=mc?t
?V=BetaV?T
B=
Virtual

10. electric potential energy
Rate of doing work
U=QV
Radiation
Light emitted due to heat

11. calculate binding energy
(mass defect)(speed of light)^2
Angle of incidence=angle of reflection
No image is formed
Mass number

12. What is an electron volt (eV)
Energy gained by particle with charge of e when moved through one volt
As speed of fluid increases pressure and potential energy decrease
Fluid resistance to flow
Number of protons in nucleus

13. gauge pressure in relation to the others
Internal resistance is zero voltage=emf
Radiation
Splitting of atomic nuclei
Difference between the absolute and atm pressure Pg=P- Patm

14. for object in SHM E=
K+U=constant
Neutron is converted into a proton and an electron is emitted
Radiation
I=?q/?t

15. work as it relates to constant force
W=Fdcos?
Current*voltage
Q=mc?t
Vot+1/2at^2=(V0+v/2)t

16. magnetic field is created by loop wire - What is magnetic field at center of loop
Body in motion remains in motion unless net force acts upon it
Beta=
Insulator
Perpendicular to each other

17. magnitude of magnetic field for current carrying wire
Ampere (1C/s)
Beta=
Photon energy must be greater than work function of the material
Weighted average of the masses of the element

18. electric field equation
E=kQ/r^2
Real image
WATTS
J=Force*Time=mv - mvo=?p

19. open pipe wavelength
Current*voltage
Degree=p/180 radian
K+U=constant
?=2L/n

20. z in isotopic notation
Body in motion remains in motion unless net force acts upon it
Force a molecule of liquid feels toward molecules of some other substance
Number of protons
1/f=1/o+ 1/i

21. surface tension results from
Photon energy must be greater than work function of the material
F=- kx
It jumps to higher energy level
Cohesion

22. under what conditions will light undergo total internal reflection
N1>n2
(mass defect)(speed of light)^2
Light travels from high n to lower n with an angle of incidence greater than the critical angle
W=mg=?Vg

23. Bernoulli's equation
373K 100
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
It is halved
Holds whenever we have a change in energy ?E=?KE+?PE=0

24. work function
Image is always upright virtual and smaller
WATTS
X=(initial horizontal v)(time in air)
Energy required to free electron from given metal

25. what would a specific gravity of 1 indicate
100% of the object will be submerged but will not sink
?=m/v kg/m^3 g/ml g/cm^3
Radiation
?=2L/n

26. As current flows through a resistor
Charge remains constant
F/A
P=1/f
B=

27. units for viscosity
Sin=0 cos=1
Frequency
Splitting of atomic nuclei
N*s/m^2

28. negative charge moves spontaneously from
0K -273
Emf is negative
image/object
Low voltage to high voltage

29. -Beta- decay
New/old
Hydrostatics
Neutron is converted into a proton and an electron is emitted
Diopters

30. atoms atomic number represents
V=???
I=?q/?t
Fnet=0 thus Fg=Fs mg=kx
Number of protons in nucleus

31. if cell is not driving current
Emf is positive
Sin=1 cos=0
Internal resistance is zero voltage=emf
It is halved

32. buoyant force is due to...
The liquid itself not the object
(Vo+v)/2
P=IV
Ceq=C1+C2+C3 Veq=V1=V2=V3

33. fission
2pvL/g
F=I(L*B)
Frequency
Splitting of atomic nuclei

34. Formula for centripetal force
U=(1/2)kx^2
F=mv^2/r
Light emitted due to heat
The liquid itself not the object

35. splitting of white light in a prim is an example of...
Fnet=0 thus Fg=Fs mg=kx
Dispersion
Mass number
C=e(A/d)

36. Ohm's Law
V=IR
(Vo+v)/2
Force a molecule of liquid feels toward the other molecules of the liquid
???

37. atomic mass number represents
Protons+neutrons
I=?q/?t
Virtual upright
Holds whenever we have a change in energy ?E=?KE+?PE=0

38. 45
V/??
Req=R1+R2+R3 Veq=V1+V2+V3
Sin=v2/2 cos=v2/2
When ?=90 b/c sin90=1

39. polarized light
Virtual upright
Electric fields of all the light waves are oriented in the same direction
Vbulk modulus
Fs=

40. closed pipe frequency
??=nv/4L
Sin=v3/2 cos=1/2
Nsin?incident=nsin?refraction
Resistor

41. relate velocities and displacement 2 ways
Nsin?incident=nsin?refraction
F1/A1=F2/A2
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Slower light will travel

42. larger the index of refraction..
Degree=p/180 radian
Resistor
Mass number
Slower light will travel

43. a virtual image has what kind of image distance
Fk=
?L=aL?T
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Negative

44. force due to electric field on single charge
When in parallel
Diopters
E=neE n is excess charge
WATTS

45. intensity of sound
I=P/A
Sin=v3/2 cos=1/2
Points away from + and toward -
image/object

46. temperature and resistors
Charge/area
Higher temperature increases resistance
Hydrostatics
Gas to solid

47. horizontal velocity of projectile
Vcos?
Protons+neutrons
(mass defect)(speed of light)^2
Fk=

48. circumference of a circle
?=2L/n
2pr
Moving charge
F=r/2

49. unit of current
Side opposite From which light originates
Solid to gas
Ampere (1C/s)
J=Force*Time=mv - mvo=?p

50. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
U=QV
Conduction
Virtual upright
N is proportional to 1/?