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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. force experienced by moving charge traveling parallel or antiparallel to magnetic field
C=e(A/d)
None
3
EV
2. kirchhoff's rule -- travel from positive to negative
?=m/v kg/m^3 g/ml g/cm^3
Emf is negative
(1/2)?v^2
Number of protons
3. centripetal acceleration
Photon energy must be greater than work function of the material
Points away from + and toward -
Voltage
A=v^2/r
4. 'real' side of a lens
2pvL/g
?=vk/m=2p??
Side opposite From which light originates
Is equal to gravitational force
5. When is voltage constant across capacitors
Holds whenever we have a change in energy ?E=?KE+?PE=0
J=Force*Time=mv - mvo=?p
?V=BetaV?T
When in parallel
6. planet orbiting a star - centripetal force
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Is equal to gravitational force
Intensity
W=qv
7. under constant acceleration - v=
T=rFsin?
Vo+at
F=I(L*B)
Zero resistance
8. electric field equation
E=kQ/r^2
W'=?E=?KE+?U
Substance is more dense then water
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
9. lever arm is halved what happens to torque
Beta=
It is halved
Coulomb=amphere*sec
E=neE n is excess charge
10. magnetic field is created by loop wire - What is magnetic field at center of loop
Low voltage to high voltage
2pvm/k
Beta=
(1/2)?v^2
11. relate charge and current
Nsin?incident=nsin?refraction
Coulomb=amphere*sec
Makes ?G more negative thus more spontaneous
3a=Beta
12. relate velocities and displacement 2 ways
Mass number
Surface
V^2=vo^2+2a?x ?x=1/2(vo+v)t
N*s/m^2
13. focal length
P=IV
1/f=1/o+ 1/i
?L=aL?T
Higher temperature increases resistance
14. equation for static friction
Fs=
Kg*m/s^2
Vsin?
2 times the focal distance
15. magnetic field of solenoid
Convection
???
?V=BetaV?T
B=
16. magnetic force
F=qvBetasin?
Fk=
?=2L/n
1/2mv^2
17. point of shape change beyond which a material can go back to normal
R=pL/A
C=Q/V
V/??
Yield strength
18. units for capacitance
R=pL/A
Farad 1 F= 1 c/v
F=mv^2/r
Ampere (1C/s)
19. when unlike charges move away from each other - U of the system
Mass number
C=eoKA/D
Increases
F=xk=mg
20. 45
Sin=v2/2 cos=v2/2
B=(F/A)/(?V/V)
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
2pvL/g
21. voltage of AC
Vrms=Vmax/v2
Splitting of atomic nuclei
Ampere (1C/s)
C=eoKA/D
22. calculate lens power
Minimum frequency of light that will cause emission of an electron
P=1/f
U=(1/2)kx^2
Difference between the absolute and atm pressure Pg=P- Patm
23. pressure
F=- F
Photon energy must be greater than work function of the material
F/A
EV
24. image created by converging (concave) mirror when object is placed inside focal point
Weighted average of the masses of the element
(1/2)?v^2
Virtual upright
Photon energy must be greater than work function of the material
25. body in translational equilibrium
No net force acting on it
T=rFsin?
More malleable material
Fusion
26. wave velocity=
Solid to gas
Proton or neutron
Force applied parallel to objects surface
???
27. fission
Convection
Splitting of atomic nuclei
Number of protons in nucleus
Beta=
28. ? of sound wave=
V/??
image/object
B=
C=eoKA/D
29. thermal expansion of a solid
P=i^2R=V^2/R=IV
MRT
?L=aL?T
F=qvBetasin?
30. charge on the plates of a capacitor
Resistor
W'=?E=?KE+?U
Q=CV
Bigger and beyond original object
31. Newtons 1st law of motion
Body in motion remains in motion unless net force acts upon it
None
Conductor
U=QV
32. capacitance of simple parallel plate (not according to Ohms)
Longitudinal
?V=BetaV?T
C=e(A/d)
Decrease in pressure that fluid exerts on the walls of the container
33. electromotive force
Pressure to move - voltage when no charge is moving between 2 terminals
M1v1=m2v2
Increases
N is proportional to 1/?
34. equation for kinetic friction
Resistor
??=nv/4L
Fk=
None
35. energy of a photon is dependent on...
Frequency
Difference between the mass of nucleus and the sum of nucleons
Intensity
Bigger and beyond original object
36. volume thermal expansion of a solid
?V=BetaV?T
Number of protons in nucleus
Resistor
R=pL/A
37. only radioactive decay that conserves the nucleus charge
Gamma decay
Protons+neutrons
More rigid material
Charge/area
38. determine spring constant
???
Sin=0 cos=1
F=xk=mg
B=
39. small moduli value
Negative
Frequency
More malleable material
Substance is less dense then water
40. torque is given by
T=rF where F is proportional to mass and r is distance from pivot
Solid to gas
Neutron is converted into a proton and an electron is emitted
V=ED
41. magnitude of current
I=?q/?t
Force and acceleration
Difference between the absolute and atm pressure Pg=P- Patm
Beta=10Log(I/Io)
42. speed of sound in proportional to...
Y=(F/A)/(?L/L) stress over strain
Ampere (1C/s)
Vbulk modulus
Vo+at
43. Ohm's Law
V=IR
?L=aL?T
E=V/d
Rate of doing work
44. What is an electron volt (eV)
Energy gained by particle with charge of e when moved through one volt
E=V/d
Conductor
Fk=
45. formula for solution which is diluted related to initial concentration
M1v1=m2v2
Emf is positive
Convection
Sin=0 cos=-1
46. charge of beta particles
Amount of energy required for phase change from solid to liquid
Substance is less dense then water
Negative
Virtual upright smaller
47. (+) magnification signifies
Conduction
Energy of electrons
Upright image
Zero resistance
48. Newtons 3rd law of motion
Beta=10Log(I/Io)
F=- F
Spreading out of light as it passes through a narrow opening
700nm -400nm
49. for object in SHM E=
Longitudinal
W=mg=?Vg
Virtual upright smaller
K+U=constant
50. large moduli value
More rigid material
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
???
Sin=1 cos=0