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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. continuity equation*
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
image/object
A=v^2/r
R=pL/A

2. body in translational equilibrium
No net force acting on it
Solute whose solution is conductive
Force applied parallel to objects surface
Req=R1+R2+R3 Veq=V1+V2+V3

3. determine spring constant
Negative
Counterclockwise is + clockwise is -
F=xk=mg
?=2L/n

4. direction of electric field created by charge
F=q/e0
Substance is more dense then water
Points away from + and toward -
Vot+1/2at^2=(V0+v/2)t

5. thermal expansion of a solid
(1/2)?v^2
T=rFsin?
???
?L=aL?T

6. frequency of spring is proportional to...
Voltage
Spring constant
Proton or neutron
Vot+1/2at^2=(V0+v/2)t

7. electric field and magnetic field are...
K+U=constant
Gamma decay
C=eoKA/D
Perpendicular to each other

8. charge on the plates of a capacitor
Intensity
Incident light is used to free electrons from a metal
P=m?v
Q=CV

9. total horizontal distance traveled by projectile
Protons+neutrons
N is proportional to 1/?
X=(initial horizontal v)(time in air)
W=mg=?Vg

10. splitting of white light in a prim is an example of...
Dispersion
Perpendicular to each other
Splitting of atomic nuclei
Real inverted

11. momentum
Conduction
Wave speed
B=(F/A)/(?V/V)
P=m?v

12. -Beta- decay
EV
Vo+at
Neutron is converted into a proton and an electron is emitted
F=q/e0

13. 30
V/??
Sin=1/2 cos=v3/2
P=i^2R=V^2/R=IV
Neutron is converted into a proton and an electron is emitted

14. closed pipe wavelength
Vsin?
?=4L/n
Substance is less dense then water
Req=R1+R2+R3 Veq=V1+V2+V3

15. units for power
Emf is negative
Incident light is used to free electrons from a metal
P=IA
WATTS

16. increasing emf has What effect on ?G
F/A
Makes ?G more negative thus more spontaneous
The liquid itself not the object
J=Force*Time=mv - mvo=?p

17. formula for impulse (J)
J=Force*Time=mv - mvo=?p
Equilibrium position
Vot+1/2at^2=(V0+v/2)t
Q=mc?t

18. (+) magnification signifies
Upright image
?=m/v kg/m^3 g/ml g/cm^3
Will never decrease capacitance
???

19. kirchhoff's rule -- travel from negative to positive
Emf is positive
(Vo+v)/2
K+U=constant
?V=BetaV?T

20. point of shape change beyond which a material can go back to normal
V=IR
Yield strength
100% of the object will be submerged but will not sink
Force a molecule of liquid feels toward molecules of some other substance

21. gauge pressure in relation to the others
Vsin?
Difference between the absolute and atm pressure Pg=P- Patm
Beta=
Resistor

22. youngs modulus
N1>n2
2pvm/k
Y=(F/A)/(?L/L) stress over strain
N is proportional to 1/?

23. relationship between linear thermal expansion and volumetric thermal expansion
F=xk=mg
?=2L/n
Substance is more dense then water
3a=Beta

24. material with moderate resistance
Zero resistance
Mass
Resistor
Beta=

25. adhesion
Weighted average of the masses of the element
Force a molecule of liquid feels toward molecules of some other substance
Internal resistance is zero voltage=emf
1/2mv^2

26. beat frequencies for two frequencies differing by 4 Hz
F=- kx
Sin=v2/2 cos=v2/2
Fluid resistance to flow
4 Hz

27. wavelength in string
Charge/area
Minimum frequency of light that will cause emission of an electron
Image is always upright virtual and smaller
?=2L/n

28. v2/2
E=Pt
(mass defect)(speed of light)^2
P=IV
Approx .7

29. work as product of pressure and volume change
Gas to solid
F1/A1=F2/A2
Coulomb=amphere*sec
Frequency

30. 90
Sin=1 cos=0
WATTS
Dispersion
Resistor

31. find factor by which something has been changed
Mass
F=mv^2/r
Force applied parallel to objects surface
New/old

32. fungal cells unlike animals cells do not contain
Radiation
Vot+1/2at^2=(V0+v/2)t
Centrioles
P=m?v

33. type of heat transfer involving the physical motion of heated material
F=mv^2/r
Convection
Difference between the mass of nucleus and the sum of nucleons
Ceq=C1+C2+C3 Veq=V1=V2=V3

34. power dissipated by resistor (3 ways)
Number of protons
Is equal to gravitational force
Difference between the absolute and atm pressure Pg=P- Patm
P=i^2R=V^2/R=IV

35. Capacitors in series
Pascal (Pa) N/m^2
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
?L=aL?T

36. snell's law derivative
N is proportional to 1/?
Virtual upright
Derive universal gravitation equation
Q=mL

37. plane mirrors create What type of image
2pvm/k
Virtual upright
Virtual
Derive universal gravitation equation

38. reflection law
Angle of incidence=angle of reflection
Minimum frequency of light that will cause emission of an electron
Is equal to gravitational force
Negative

39. circumference of a circle
Vot+1/2at^2=(V0+v/2)t
None
2pr
WATTS

40. angular frequency of spring ?
Makes ?G more negative thus more spontaneous
?=vk/m=2p??
Sin=v2/2 cos=v2/2
P=i^2R=V^2/R=IV

41. force experience by stationary particle in magnetic field
Light emitted due to heat
None
E=1/2k(A^2)
Gas to solid

42. dielectric material
?=m/v kg/m^3 g/ml g/cm^3
Rate of doing work
???
Will never decrease capacitance

43. when unlike charges move away from each other - U of the system
Increases
V^2=vo^2+2a?x ?x=1/2(vo+v)t
F/A
Real inverted image

44. 180
Sin=0 cos=-1
EV
When in parallel
Q=mL

45. When does turbulence in a fluid arise
When in parallel
V=?A
When velocity of the fluid exceeds critical velocity
1/f=1/o+ 1/i

46. centripetal acceleration
Vbulk modulus
P=IV
V/??
A=v^2/r

47. work done by non conservative force

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48. intensity of sound
I=P/A
M1v1=m2v2
W'=?E=?KE+?U
Makes ?G more negative thus more spontaneous

49. equation for v between two parallel plates
A Calorie is a nutritional term equal to 1000 calories
V=ED
V/??
Energy required to free electron from given metal

50. shear
Vo+at
Ceq=C1+C2+C3 Veq=V1=V2=V3
Force applied parallel to objects surface
Energy of electrons