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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. What is heat of fusion
N*s/m^2
Amount of energy required for phase change from solid to liquid
F=1/2(r)
C=eoKA/D

2. angular frequency of spring ?
?=vk/m=2p??
?=m/v kg/m^3 g/ml g/cm^3
B=(F/A)/(?V/V)
Proton or neutron

3. light ray that strikes a surface
Points away from + and toward -
Sin=1 cos=0
Incident ray
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

4. when spring is at rest
Fnet=0 thus Fg=Fs mg=kx
P=m?v
F/A
Upright image

5. viscosity
Nsin?incident=nsin?refraction
Sin=v3/2 cos=1/2
Fluid resistance to flow
Req=R1+R2+R3 Veq=V1+V2+V3

6. power dissipated by resistor (3 ways)
700nm -400nm
P=i^2R=V^2/R=IV
Virtual
Gas to solid

7. circumference of a circle
2pr
image/object
Splitting of atomic nuclei
Equilibrium position

8. gravitational force formula
Image is always upright virtual and smaller
Spreading out of light as it passes through a narrow opening
2pvL/g
F=Gm1m2/r^2

9. atomic mass number represents
F=ma
P=1/f
Q=mL
Protons+neutrons

10. loudness of sound
Intensity
Solute whose solution is conductive
100% of the object will be submerged but will not sink
Centrioles

11. kirchhoff's rule -- travel from positive to negative
Vbulk modulus
Amount of energy required for phase change from solid to liquid
Emf is negative
Beta=

12. electric field maximum of insulating sphere
Beta=10Log(I/Io)
P=1/f
Surface
Protons+neutrons

13. Formula for centripetal force
F=1/2(r)
Fnet=0 thus Fg=Fs mg=kx
F=mv^2/r
F/A

14. direction of electric field created by charge
Points away from + and toward -
?x=1/2(v+vo)t
?=2L/n
Incident light is used to free electrons from a metal

15. to find acceleration due to gravity
Perpendicular to each other
Derive universal gravitation equation
F=mv^2/r
E=Pt

16. under content acceleration v^2=
Vo^2+2a(?x)
Negative
Incident light is used to free electrons from a metal
E=Pt

17. in calculating torque - which direction is + and which is
Low voltage to high voltage
Negative
Counterclockwise is + clockwise is -
???

18. incandescence
None
Light emitted due to heat
F=xk=mg
Virtual

19. resistance in parallel
2
Holds whenever we have a change in energy ?E=?KE+?PE=0
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Fnet=0 thus Fg=Fs mg=kx

20. As current flows through a resistor
N=c/v
Points away from + and toward -
V=kQ/r
Charge remains constant

21. 30
Sin=1/2 cos=v3/2
??=nv/4L
Vrms=Vmax/v2
B=

22. adhesion
Hydrostatics
Fk=
20 Hz to 20 -000 Hz
Force a molecule of liquid feels toward molecules of some other substance

23. total energy of spring system
2pr
E=1/2k(A^2)
Beta=
W'=?E=?KE+?U

24. absolute zero in K and C
Degree=p/180 radian
2pvL/g
0K -273
N is proportional to 1/?

25. tone with shortest period has
When ?=90 b/c sin90=1
The shortest wavelength
Zero resistance
Converted to extra kinetic energy of the emitted electron

26. The bigger the cross - section of a resistor..
V=kq/r
F=nv/2L
More flow less resistance
2pvm/k

27. force experience by stationary particle in magnetic field
None
B=
T=rFsin?
N is proportional to 1/?

28. max frequency of X- ray depends ONLY on...
Energy of electrons
Weighted average of the masses of the element
Real inverted image
Minimum frequency of light that will cause emission of an electron

29. stays constant when light travels through boundary
2
Frequency
Charge/area
Force and acceleration

30. mass defect
Difference between the mass of nucleus and the sum of nucleons
Fluid resistance to flow
V^2=vo^2+2a?x ?x=1/2(vo+v)t
700nm -400nm

31. potential energy of spring
U=(1/2)kx^2
1/f=1/o+ 1/i
F=nv/2L
273K 0

32. Capacitors in series
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
F1/A1=F2/A2
V=???
Insulator

33. ideal ammeter
Beta=10Log(I/Io)
Frequency
None
Zero resistance

34. Hooke's Law
T=1/f
Moving charge
Points away from + and toward -
F=- kx

35. nucleon
N is proportional to 1/?
Spreading out of light as it passes through a narrow opening
Proton or neutron
?L=aL?T

36. study of fluids at rest
Hydrostatics
Solid to gas
Frequency
Will never decrease capacitance

37. density with units
Q=CV
?=m/v kg/m^3 g/ml g/cm^3
Vrms=Vmax/v2
???

38. When does turbulence in a fluid arise
When velocity of the fluid exceeds critical velocity
Pressure to move - voltage when no charge is moving between 2 terminals
Nsin?incident=nsin?refraction
Virtual

39. relationship between linear thermal expansion and volumetric thermal expansion
(1/2)?v^2
More malleable material
3a=Beta
C=Q/V

40. volumetric rate of flow (property)
Slower light will travel
Constant for closed system independent of changes in area
Bigger and beyond original object
F=nv/2L

41. material with low resistance
Conductor
Bigger and beyond original object
Virtual upright
No image is formed

42. all harmonics have the same
Wave speed
Difference between the mass of nucleus and the sum of nucleons
P=i^2R=V^2/R=IV
Body in motion remains in motion unless net force acts upon it

43. specific gravity greater than one
20 Hz to 20 -000 Hz
Substance is more dense then water
Low voltage to high voltage
MRT

44. capacitors in parallel
Substance is less dense then water
Fk=
Ceq=C1+C2+C3 Veq=V1=V2=V3
Vo^2+2a(?x)

45. pressure
None
P=i^2R=V^2/R=IV
J=Force*Time=mv - mvo=?p
F/A

46. energy stored in capacitor
Negative
The liquid itself not the object
U=1/2QV=1/2CV^2=1/2Q^2/C
Beta=

47. dynamic pressure
Counterclockwise is + clockwise is -
Light emitted due to heat
F=ma
(1/2)?v^2

48. convex mirror
X=(initial horizontal v)(time in air)
Image is always upright virtual and smaller
Vo+at
Force and acceleration

49. bulk modulus
New/old
V/??
E=kQ/r^2
B=(F/A)/(?V/V)

50. determine spring constant
Real image
Mass
F=xk=mg
F=qvBetasin?