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Test your basic knowledge |
MCAT Physics Formulas
Start Test
Study First
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. magnification=
image/object
Hydrostatics
(1/2)?v^2
When in parallel
2. Newtons 2nd law of motion
F=ma
MRT
Moving charge
F=nv/2L
3. lever arm is halved what happens to torque
Resistor
V=IR
It is halved
Negative
4. process of combing smaller nuclei to create larger nuclei
Virtual upright
Photon energy must be greater than work function of the material
Fusion
Charge/length
5. threshold frequency (photoelectric effect)
Sin=0 cos=-1
None
None
Minimum frequency of light that will cause emission of an electron
6. horizontal velocity of projectile
Light travels from high n to lower n with an angle of incidence greater than the critical angle
373K 100
Vcos?
3a=Beta
7. adhesion
Buoyant force equals blocks weight
Force a molecule of liquid feels toward molecules of some other substance
Side opposite From which light originates
When velocity of the fluid exceeds critical velocity
8. s
N1>n2
Negative
Increase length increase resistance
Charge/area
9. volume thermal expansion of a solid
V=IR
?V=BetaV?T
Nsin?incident=nsin?refraction
Spring constant
10. find power in circuit
Current*voltage
???
Resistor
?=4L/n
11. absolute zero in K and C
?L=aL?T
0K -273
2pvL/g
WATTS
12. gravitational force formula
Virtual upright
Hydrostatics
F=mv^2/r
F=Gm1m2/r^2
13. voltage of AC
P=IV
Vrms=Vmax/v2
Difference between the mass of nucleus and the sum of nucleons
1/f=1/o+ 1/i
14. atoms atomic number represents
Sin=1 cos=0
U=QV
Proton or neutron
Number of protons in nucleus
15. magnetic field force on current carrying wire
Conductor
F=I(L*B)
M1v1=m2v2
V=IR
16. focal length
?x=1/2(v+vo)t
1/f=1/o+ 1/i
V/??
Sin=v3/2 cos=1/2
17. frequency in string
F=nv/2L
Vo^2+2a(?x)
Force a molecule of liquid feels toward the other molecules of the liquid
?=2L/n
18. energy of photon
100% of the object will be submerged but will not sink
V=kQ/r
A=v^2/r
E=???=hc/?
19. open pipe frequency
Higher temperature increases resistance
None
F=nv/2L
Irms=Imax/v2
20. continuity equation*
P=1/f
N2>n1
0K -273
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
21. a in isotopic notation
Zero resistance
Side opposite From which light originates
Solute whose solution is conductive
Mass number
22. (-) magnification signifies
Slower light will travel
Beta=10Log(I/Io)
F/A
Inverted image
23. magnetic field is created by loop wire - What is magnetic field at center of loop
Substance is more dense then water
Beta=
Diopters
C=eoKA/D
24. type of image ALWAYS created by diverging (convex) mirror
Resistor
Virtual upright smaller
F=c/?
I=P/A
25. center of curvature is...
2 times the focal distance
Ampere (1C/s)
Substance is more dense then water
Protons+neutrons
26. frequency of spring is inversely proportional to...
Virtual upright
V=IR
Mass
U=QV
27. electric work
Virtual upright
Sin=0 cos=1
N=c/v
U=q?v
28. power of sound wave
Force a molecule of liquid feels toward molecules of some other substance
100% of the object will be submerged but will not sink
P=IA
Conductor
29. Log(100)=
Yield strength
When velocity of the fluid exceeds critical velocity
Force a molecule of liquid feels toward the other molecules of the liquid
2
30. equation relating heat gained and temperature change
Q=mc?t
P=IA
F=nv/2L
Vrms=Vmax/v2
31. energy of moving proton
Degree=p/180 radian
U=QV
V^2=vo^2+2a?x ?x=1/2(vo+v)t
1/2mv^2
32. conservation of energy law
?=2L/n
Holds whenever we have a change in energy ?E=?KE+?PE=0
More rigid material
P=IA
33. for photoelectric material to liberate an electron
Kg*m/s^2
4 Hz
Photon energy must be greater than work function of the material
Difference between the absolute and atm pressure Pg=P- Patm
34. type of heat transfer involving the physical motion of heated material
Convection
No image is formed
EV
Conduction
35. Gauss's Law
F=xk=mg
F=q/e0
Pascal (Pa) N/m^2
V/??
36. formula for heat gained or lost during phase change
Q=mL
Yield strength
Vot+1/2at^2=(V0+v/2)t
P=i^2R=V^2/R=IV
37. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
Diopters
Intensity
?=2L/n
38. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
F=1/2(r)
T=rF where F is proportional to mass and r is distance from pivot
N=c/v
39. temperature and resistors
Higher temperature increases resistance
P=i^2r
Counterclockwise is + clockwise is -
Energy of electrons
40. cohesion
T=rFsin?
Higher temperature increases resistance
N2>n1
Force a molecule of liquid feels toward the other molecules of the liquid
41. What is heat of fusion
WATTS
Incident light is used to free electrons from a metal
Emf is positive
Amount of energy required for phase change from solid to liquid
42. determine spring constant
Upright image
Equilibrium position
Force a molecule of liquid feels toward molecules of some other substance
F=xk=mg
43. parabolic mirror: object between c and f - image is...
V=ED
Bigger and beyond original object
Fusion
Diopters
44. youngs modulus
2
Y=(F/A)/(?L/L) stress over strain
Sin=v3/2 cos=1/2
F1/A1=F2/A2
45. work in electromagnetic field
W=qv
Pressure to move - voltage when no charge is moving between 2 terminals
1000 kg/m^3 or 1 g/cm^3
Inverted image
46. electrical power
Emf is negative
P=IV
V=?A
F=qvBetasin?
47. Capacitors in series
Hydrostatics
Beta=
Minimum frequency of light that will cause emission of an electron
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
48. index of refraction (n) equation
Perpendicular to each other
V=???
N=c/v
Internal resistance is zero voltage=emf
49. -Beta- decay
Neutron is converted into a proton and an electron is emitted
Force a molecule of liquid feels toward the other molecules of the liquid
Sin=1 cos=0
N2>n1
50. v2/2
Coulomb=amphere*sec
Increases
Approx .7
Charge/area