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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. material with low resistance
None
Conductor
P=i^2r
Makes ?G more negative thus more spontaneous
2. type of image ALWAYS created by diverging (convex) mirror
N2>n1
F=- kx
???
Virtual upright smaller
3. mirror image is on same side as object
Real image
F=E*A
3
Req=R1+R2+R3 Veq=V1+V2+V3
4. angular frequency of spring ?
Approx .7
?=vk/m=2p??
Insulator
Virtual upright
5. equation for static friction
Intensity
Fs=
Dispersion
Zero resistance
6. energy of moving proton
1/2mv^2
Yield strength
F=E*A
MRT
7. kirchhoff's rule -- travel from positive to negative
Emf is negative
Derive universal gravitation equation
Longitudinal
Is equal to gravitational force
8. current of AC
Vcos?
Irms=Imax/v2
No image is formed
F=E*A
9. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
Difference between the mass of nucleus and the sum of nucleons
The liquid itself not the object
(Vo+v)/2
10. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=
P=i^2R=V^2/R=IV
Energy of electrons
Number of protons in nucleus
11. length of resistor
1/2mv^2
Fusion
Centrioles
Increase length increase resistance
12. parabolic mirror: image at focal point
V^2=vo^2+2a?x ?x=1/2(vo+v)t
No image is formed
Rate of doing work
V=ED
13. electric potential energy
P=i^2R=V^2/R=IV
U=QV
Mass number
Incident light is used to free electrons from a metal
14. light bends toward normal when
Charge remains constant
N2>n1
None
T=rF where F is proportional to mass and r is distance from pivot
15. a virtual image has what kind of image distance
Decrease in pressure that fluid exerts on the walls of the container
Negative
(Vo+v)/2
Zero resistance
16. object placed beyond focal point in converging lens create What type of image
V^2=vo^2+2a?x ?x=1/2(vo+v)t
When ?=90 b/c sin90=1
Frequency
Real inverted
17. frequency of spring is inversely proportional to...
P=m?v
0K -273
Vcos?
Mass
18. ideal ammeter
Zero resistance
Coulomb=amphere*sec
??=nv/4L
None
19. equation for v between two parallel plates
More flow less resistance
V=ED
None
0K -273
20. small moduli value
Points away from + and toward -
F=q/e0
Inverted image
More malleable material
21. for object in SHM E=
N2>n1
?V=BetaV?T
K+U=constant
2pr
22. work in electromagnetic field
?=4L/n
Frequency
W=qv
Charge/length
23. for photoelectric material to liberate an electron
Pressure to move - voltage when no charge is moving between 2 terminals
20 Hz to 20 -000 Hz
E=V/d
Photon energy must be greater than work function of the material
24. electrolyte
Holds whenever we have a change in energy ?E=?KE+?PE=0
Solute whose solution is conductive
Q=mL
Substance is more dense then water
25. large moduli value
More rigid material
?L=aL?T
Light emitted due to heat
?=2L/n
26. difference between Calorie and calorie
A Calorie is a nutritional term equal to 1000 calories
Intensity
2pr
V^2=vo^2+2a?x ?x=1/2(vo+v)t
27. velocity for a wave
T=1/f
V=???
Fs=
Yield strength
28. dynamic pressure
Sin=v2/2 cos=v2/2
4 Hz
E=Pt
(1/2)?v^2
29. mass defect
Zero resistance
N is proportional to 1/?
Difference between the mass of nucleus and the sum of nucleons
Convection
30. speed of sound in proportional to...
F=xk=mg
??=nv/4L
Vbulk modulus
V/??
31. speed of light in a vacuum (c) =
???
F=Gm1m2/r^2
100% of the object will be submerged but will not sink
373K 100
32. unit for energy beside J
Coulomb=amphere*sec
V=kq/r
EV
Number of protons in nucleus
33. point of shape change beyond which a material can go back to normal
Sin=1 cos=0
Charge remains constant
F=q/e0
Yield strength
34. sound waves are what kind of waves
Vrms=Vmax/v2
Longitudinal
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Virtual upright
35. power is defined as
Rate of doing work
Increases
Real inverted
Charge remains constant
36. find voltage (original)
Energy gained by particle with charge of e when moved through one volt
Virtual upright smaller
V=kq/r
1/2mv^2
37. under constant acceleration - two ways ?x=
Fluid resistance to flow
P=IV
Force and acceleration
Vot+1/2at^2=(V0+v/2)t
38. force experience by stationary particle in magnetic field
None
J=Force*Time=mv - mvo=?p
Pascal (Pa) N/m^2
F=I(L*B)
39. 'real' side of a lens
Zero resistance
Side opposite From which light originates
Q=CV
A=v^2/r
40. convex mirror
Image is always upright virtual and smaller
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Sin=1 cos=0
N=c/v
41. units for power of a lens
Wave speed
Buoyant force equals blocks weight
Insulator
Diopters
42. When is torque maximum
Amount of energy required for phase change from solid to liquid
Vrms=Vmax/v2
F/A
When ?=90 b/c sin90=1
43. under content acceleration v^2=
X=(initial horizontal v)(time in air)
Dispersion
Vo^2+2a(?x)
Slower light will travel
44. all harmonics have the same
Wave speed
?L=aL?T
Is equal to gravitational force
Q=CV
45. increasing emf has What effect on ?G
None
Makes ?G more negative thus more spontaneous
Side opposite From which light originates
Incident light is used to free electrons from a metal
46. (-) magnification signifies
V^2=vo^2+2a?x ?x=1/2(vo+v)t
373K 100
F=E*A
Inverted image
47. under constant acceleration - v=
Splitting of atomic nuclei
N=c/v
C=e(A/d)
Vo+at
48. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
Surface
Pressure to move - voltage when no charge is moving between 2 terminals
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
49. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Charge/length
Voltage
Resistor
Conduction
50. gravitational force formula
Difference between the absolute and atm pressure Pg=P- Patm
W=Fdcos?
N is proportional to 1/?
F=Gm1m2/r^2