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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. energy of a photon is dependent on...
Energy gained by particle with charge of e when moved through one volt
None
Frequency
V=ED
2. total energy of spring system
100% of the object will be submerged but will not sink
V/??
Fluid resistance to flow
E=1/2k(A^2)
3. force experienced by moving charge traveling parallel or antiparallel to magnetic field
F=I(L*B)
None
Q=CV
Makes ?G more negative thus more spontaneous
4. type of heat transfer involving transfer of energy by electromagnetic waves
Radiation
Virtual upright
Charge remains constant
I=P/A
5. degrees to radians
New/old
Charge remains constant
P=1/f
Degree=p/180 radian
6. electrolyte
Solute whose solution is conductive
Resistor
Side opposite From which light originates
Zero resistance
7. buoyant force is due to...
The liquid itself not the object
When in parallel
K+U=constant
1000 kg/m^3 or 1 g/cm^3
8. for photoelectric material to liberate an electron
P=m?v
Virtual
Photon energy must be greater than work function of the material
No net force acting on it
9. When is voltage constant across capacitors
Substance is less dense then water
Points away from + and toward -
Is equal to gravitational force
When in parallel
10. under constant acceleration - v=
Vo+at
Is equal to gravitational force
K+U=constant
P=m?v
11. deposition
Charge/area
Gas to solid
Constant for closed system independent of changes in area
Protons+neutrons
12. polarized light
Virtual upright
Electric fields of all the light waves are oriented in the same direction
Vrms=Vmax/v2
3
13. 180
Sin=0 cos=-1
?=4L/n
Vrms=Vmax/v2
Beta=
14. voltage of AC
Beta=10Log(I/Io)
It jumps to higher energy level
Vrms=Vmax/v2
Light travels from high n to lower n with an angle of incidence greater than the critical angle
15. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
F=xk=mg
Conduction
Beta=
?=4L/n
16. find factor by which something has been changed
New/old
Conduction
F/A
Insulator
17. magnetic field of solenoid
B=
V/??
???
Slower light will travel
18. process of combing smaller nuclei to create larger nuclei
image/object
It is halved
U=q?v
Fusion
19. direction of electric field created by charge
Protons+neutrons
Bigger and beyond original object
F/A
Points away from + and toward -
20. youngs modulus
Virtual
??=nv/4L
Y=(F/A)/(?L/L) stress over strain
Q=mc?t
21. 0
Neutron is converted into a proton and an electron is emitted
Substance is less dense then water
Yield strength
Sin=0 cos=1
22. unit for energy beside J
Virtual
Buoyant force equals blocks weight
Wave speed
EV
23. energy of photon
Minimum frequency of light that will cause emission of an electron
F=xk=mg
Conductor
E=???=hc/?
24. electric field equation
Makes ?G more negative thus more spontaneous
Is equal to gravitational force
E=kQ/r^2
Force applied parallel to objects surface
25. fission
Splitting of atomic nuclei
Real inverted image
Frequency
Q=mL
26. dynamic pressure
Ceq=C1+C2+C3 Veq=V1=V2=V3
Beta=
Y=(F/A)/(?L/L) stress over strain
(1/2)?v^2
27. -Beta- decay
Points away from + and toward -
Neutron is converted into a proton and an electron is emitted
2 times the focal distance
?=2L/n
28. work done by non conservative force
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183
29. electric field and magnetic field are...
Perpendicular to each other
Spreading out of light as it passes through a narrow opening
Real inverted image
Force and acceleration
30. calculate binding energy
Vo^2+2a(?x)
N*s/m^2
(mass defect)(speed of light)^2
Vcos?
31. total horizontal distance traveled by projectile
Inverted image
T=rFsin?
M1v1=m2v2
X=(initial horizontal v)(time in air)
32. parabolic mirror: image at focal point
Nsin?incident=nsin?refraction
No image is formed
Incident light is used to free electrons from a metal
Fusion
33. amplitude of spring is proportional to...
Force and acceleration
Virtual upright smaller
Emf is positive
V=ED
34. density of water
As speed of fluid increases pressure and potential energy decrease
?V=BetaV?T
1000 kg/m^3 or 1 g/cm^3
Increases
35. As current flows through a resistor
Dispersion
Number of protons
Charge remains constant
Resistor
36. negative charge moves spontaneously from
Low voltage to high voltage
Sin=v2/2 cos=v2/2
?=vk/m=2p??
E=1/2k(A^2)
37. Ohm's Law
Solute whose solution is conductive
V=IR
P=IV
Voltage
38. gauge pressure in relation to the others
Weighted average of the masses of the element
Difference between the absolute and atm pressure Pg=P- Patm
Moving charge
I=P/A
39. magnetic field force on current carrying wire
V=?A
Gas to solid
Yield strength
F=I(L*B)
40. electrical power
F=E*A
P=IV
No net force acting on it
It jumps to higher energy level
41. Log(100)=
Beta=10Log(I/Io)
Frequency
Charge/area
2
42. osmotic pressure formula
Conductor
Fk=
MRT
V^2=vo^2+2a?x ?x=1/2(vo+v)t
43. excess energy of a photon is...
When velocity of the fluid exceeds critical velocity
None
Converted to extra kinetic energy of the emitted electron
A Calorie is a nutritional term equal to 1000 calories
44. torque is given by
Req=R1+R2+R3 Veq=V1+V2+V3
T=rF where F is proportional to mass and r is distance from pivot
F=mv^2/r
Vo+at
45. in calculating torque - which direction is + and which is
Counterclockwise is + clockwise is -
Low voltage to high voltage
Hydrostatics
2pvm/k
46. ideal ammeter
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Zero resistance
Force a molecule of liquid feels toward molecules of some other substance
F=E*A
47. work in electromagnetic field
Irms=Imax/v2
2
Holds whenever we have a change in energy ?E=?KE+?PE=0
W=qv
48. Capacitors in series
Holds whenever we have a change in energy ?E=?KE+?PE=0
Sin=v3/2 cos=1/2
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
1/2mv^2
49. electric work
F=mv^2/r
Energy of electrons
U=q?v
Fnet=0 thus Fg=Fs mg=kx
50. atoms atomic number represents
Number of protons in nucleus
Amount of energy required for phase change from solid to liquid
T=rFsin?
2pvm/k