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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. dielectric material
Will never decrease capacitance
Real inverted
Coulomb=amphere*sec
Converted to extra kinetic energy of the emitted electron

2. a lightbulb in a circuit is a
F=q/e0
Coulomb=amphere*sec
Resistor
Zero resistance

3. magnetic field force on current carrying wire
F=I(L*B)
N*s/m^2
Mass
Difference between the mass of nucleus and the sum of nucleons

4. wavelength in string
Irms=Imax/v2
?=2L/n
Charge/length
E=V/d

5. process of combing smaller nuclei to create larger nuclei
Moving charge
V=IR
Fusion
F=r/2

6. unit for energy beside J
1000 kg/m^3 or 1 g/cm^3
Emf is negative
1/f=1/o+ 1/i
EV

7. electric field equation
2
(mass defect)(speed of light)^2
Energy of electrons
E=kQ/r^2

8. total horizontal distance traveled by projectile
Light travels from high n to lower n with an angle of incidence greater than the critical angle
X=(initial horizontal v)(time in air)
Number of protons
Solute whose solution is conductive

9. volumetric rate of flow (property)
100% of the object will be submerged but will not sink
Constant for closed system independent of changes in area
Neutron is converted into a proton and an electron is emitted
W'=?E=?KE+?U

10. ? of sound wave=
V/??
Minimum frequency of light that will cause emission of an electron
Side opposite From which light originates
EV

11. What does atoms atomic weight represent
P=i^2R=V^2/R=IV
Diopters
Centrioles
Weighted average of the masses of the element

12. meaning of Bernouili's equation
EV
F=I(L*B)
Radiation
As speed of fluid increases pressure and potential energy decrease

13. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
T=1/f
None
?=m/v kg/m^3 g/ml g/cm^3

14. capacitance equation in circuit
Beta=10Log(I/Io)
Energy required to free electron from given metal
Negative
C=Q/V

15. circumference of a circle
2pr
Sin=v3/2 cos=1/2
Protons+neutrons
Pascal (Pa) N/m^2

16. buoyant force is due to...
The liquid itself not the object
?=vk/m=2p??
Solid to gas
Substance is less dense then water

17. snells law
Nsin?incident=nsin?refraction
E=Pt
F=ma
Gas to solid

18. equation for kinetic friction
Constant for closed system independent of changes in area
Fk=
2pvL/g
Difference between the mass of nucleus and the sum of nucleons

19. plane mirrors create What type of image
F=mv^2/r
Mass number
Virtual
Increase length increase resistance

20. mirror image is on same side as object
Real image
F=r/2
Holds whenever we have a change in energy ?E=?KE+?PE=0
T=rFsin?

21. kirchhoff's rule -- travel from negative to positive
Substance is more dense then water
F=xk=mg
Emf is positive
N1>n2

22. large moduli value
M1v1=m2v2
N2>n1
Emf is positive
More rigid material

23. bulk modulus
P=IA
Conduction
T=rFsin?
B=(F/A)/(?V/V)

24. reflection law
Angle of incidence=angle of reflection
Increases
Perpendicular to each other
Counterclockwise is + clockwise is -

25. electric flux
Voltage
B=
Vot+1/2at^2=(V0+v/2)t
F=E*A

26. energy of photon
C=eoKA/D
V=kq/r
3
E=???=hc/?

27. power of sound wave
F=qvBetasin?
F=1/2(r)
Irms=Imax/v2
P=IA

28. Log(100)=
K+U=constant
Rate of doing work
Resistor
2

29. vertical velocity of projectile
Points away from + and toward -
Vsin?
Spreading out of light as it passes through a narrow opening
0K -273

30. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Farad 1 F= 1 c/v
None
Electric fields of all the light waves are oriented in the same direction
Convection

31. velocity for a wave
Virtual upright smaller
Farad 1 F= 1 c/v
(mass defect)(speed of light)^2
V=???

32. charge of gamma particles
None
Sin=1 cos=0
Fluid resistance to flow
Kg*m/s^2

33. What is displacement equation
Constant for closed system independent of changes in area
P=i^2R=V^2/R=IV
A=v^2/r
?x=1/2(v+vo)t

34. tone with shortest period has
Real inverted
Pressure to move - voltage when no charge is moving between 2 terminals
The shortest wavelength
Energy of electrons

35. equation for static friction
Fs=
Bigger and beyond original object
A=v^2/r
Rate of doing work

36. closed pipe frequency
Light emitted due to heat
??=nv/4L
W=Fdcos?
Decrease in pressure that fluid exerts on the walls of the container

37. relate focal length and radius of curvature(r)
20 Hz to 20 -000 Hz
F=r/2
?L=aL?T
?=4L/n

38. shear
Charge remains constant
Slower light will travel
P=i^2r
Force applied parallel to objects surface

39. capacitors in parallel
Ceq=C1+C2+C3 Veq=V1=V2=V3
Solute whose solution is conductive
P=IA
Vcos?

40. The bigger the cross - section of a resistor..
More flow less resistance
2pvL/g
C=eoKA/D
R=pL/A

41. formula for solution which is diluted related to initial concentration
Real inverted
W=mg=?Vg
M1v1=m2v2
?V=BetaV?T

42. specific gravity greater than one
Rate of doing work
Substance is more dense then water
N is proportional to 1/?
Image is always upright virtual and smaller

43. incandescence
Light emitted due to heat
Q=CV
T=rF where F is proportional to mass and r is distance from pivot
???

44. energy stored in capacitor
Wave speed
E*r
Ceq=C1+C2+C3 Veq=V1=V2=V3
U=1/2QV=1/2CV^2=1/2Q^2/C

45. center of curvature is...
2 times the focal distance
E=Pt
Decrease in pressure that fluid exerts on the walls of the container
F=mv^2/r

46. loudness of sound
Higher temperature increases resistance
A Calorie is a nutritional term equal to 1000 calories
Intensity
Fs=

47. capacitance of simple parallel plate (not according to Ohms)
Vbulk modulus
Approx .7
C=e(A/d)
Kg*m/s^2

48. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
Increase length increase resistance
Points away from + and toward -
P=IA

49. specific gravity is less than one
Substance is less dense then water
Vrms=Vmax/v2
Pascal (Pa) N/m^2
V=kq/r

50. momentum
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
V=?A
Increases
P=m?v