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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. visible light wavelength
Substance is more dense then water
700nm -400nm
Upright image
F=ma
2. force due to electric field on single charge
E=neE n is excess charge
273K 0
Neutron is converted into a proton and an electron is emitted
WATTS
3. suppose a block is floating in H2O - What does this mean
Wave speed
Buoyant force equals blocks weight
Centrioles
?=m/v kg/m^3 g/ml g/cm^3
4. determine spring constant
E*r
Degree=p/180 radian
F=xk=mg
Minimum frequency of light that will cause emission of an electron
5. planet orbiting a star - centripetal force
Virtual upright
T=1/f
Is equal to gravitational force
V=kQ/r
6. when spring is at rest
(1/2)?v^2
Vot+1/2at^2=(V0+v/2)t
?=m/v kg/m^3 g/ml g/cm^3
Fnet=0 thus Fg=Fs mg=kx
7. only radioactive decay that conserves the nucleus charge
N2>n1
373K 100
Higher temperature increases resistance
Gamma decay
8. find energy in circuit
E=Pt
When in parallel
Slower light will travel
W=Fdcos?
9. power dissipated by resistor (3 ways)
P=i^2R=V^2/R=IV
Proton or neutron
E=neE n is excess charge
A=v^2/r
10. across capacitor what remains constant
Emf is negative
A=v^2/r
2pvL/g
Voltage
11. what would a specific gravity of 1 indicate
V=?A
Q=mc?t
100% of the object will be submerged but will not sink
It is halved
12. unit of current
Vcos?
Ampere (1C/s)
F=xk=mg
It jumps to higher energy level
13. density with units
Energy of electrons
?=m/v kg/m^3 g/ml g/cm^3
The shortest wavelength
Vbulk modulus
14. When does turbulence in a fluid arise
Inverted image
When velocity of the fluid exceeds critical velocity
Vsin?
Photon energy must be greater than work function of the material
15. (-) magnification signifies
Difference between the absolute and atm pressure Pg=P- Patm
Holds whenever we have a change in energy ?E=?KE+?PE=0
Inverted image
K+U=constant
16. large moduli value
None
More rigid material
Body in motion remains in motion unless net force acts upon it
Neutron is converted into a proton and an electron is emitted
17. mirror image is on same side as object
Real image
Virtual upright
Higher temperature increases resistance
I=?q/?t
18. magnetic field force on current carrying wire
Ampere (1C/s)
F=I(L*B)
T=rFsin?
Solute whose solution is conductive
19. frequency of spring is proportional to...
Gas to solid
Spring constant
(Vo+v)/2
W=Fdcos?
20. period of pendulum
2pvL/g
?=m/v kg/m^3 g/ml g/cm^3
Approx .7
Intensity
21. splitting of white light in a prim is an example of...
Q=mc?t
Vo+at
Dispersion
E=???=hc/?
22. capacitance equation in circuit
?=m/v kg/m^3 g/ml g/cm^3
Q=mc?t
C=Q/V
Mass number
23. Capacitors in series
Light emitted due to heat
P=IV
Energy gained by particle with charge of e when moved through one volt
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
24. sublimation
Coulomb=amphere*sec
Conduction
Solid to gas
W=Fdcos?
25. magnetic force
F=qvBetasin?
Force a molecule of liquid feels toward the other molecules of the liquid
2 times the focal distance
F1/A1=F2/A2
26. focal length
373K 100
Fs=
1/f=1/o+ 1/i
F=qvBetasin?
27. centripetal acceleration
Pascal (Pa) N/m^2
F=ma
A=v^2/r
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
28. light bends away from normal when
?=vk/m=2p??
Vrms=Vmax/v2
N1>n2
Protons+neutrons
29. What is heat of fusion
Nsin?incident=nsin?refraction
Fk=
Amount of energy required for phase change from solid to liquid
B=
30. force experience by stationary particle in magnetic field
N2>n1
V^2=vo^2+2a?x ?x=1/2(vo+v)t
None
Fusion
31. Electric Potential equation
Number of protons in nucleus
It is halved
V=kQ/r
Counterclockwise is + clockwise is -
32. index of refraction (n) equation
E*r
?L=aL?T
J=Force*Time=mv - mvo=?p
N=c/v
33. under constant acceleration V(average)=
Angle of incidence=angle of reflection
Substance is more dense then water
More rigid material
(Vo+v)/2
34. energy of photon
?V=BetaV?T
Gas to solid
R=pL/A
E=???=hc/?
35. electric potential energy
U=QV
Vrms=Vmax/v2
Coulomb=amphere*sec
Virtual upright smaller
36. image created by converging (concave) mirror when object is placed inside focal point
MRT
Virtual upright
Incident ray
Ampere (1C/s)
37. period (T) and frequency (f) of a tone are related by
Converted to extra kinetic energy of the emitted electron
Work/time
T=1/f
??=nv/4L
38. viscosity
As speed of fluid increases pressure and potential energy decrease
Fluid resistance to flow
1000 kg/m^3 or 1 g/cm^3
W=mg=?Vg
39. dynamic pressure
T=rFsin?
(1/2)?v^2
EV
373K 100
40. energy stored in capacitor
Radiation
Angle of incidence=angle of reflection
F=nv/2L
U=1/2QV=1/2CV^2=1/2Q^2/C
41. max frequency of X- ray depends ONLY on...
Increases
Energy of electrons
Splitting of atomic nuclei
700nm -400nm
42. work done by non conservative force
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183
43. intensity of sound
I=P/A
Negative
Virtual upright
Sin=v3/2 cos=1/2
44. to find acceleration due to gravity
Sin=0 cos=1
2 times the focal distance
Resistor
Derive universal gravitation equation
45. charge on the plates of a capacitor
Q=CV
Body in motion remains in motion unless net force acts upon it
W=qv
(1/2)?v^2
46. frequency of spring is inversely proportional to...
Gamma decay
A sin?=n?
Mass
Vo^2+2a(?x)
47. relate charge and current
Sin=1 cos=0
Internal resistance is zero voltage=emf
Vsin?
Coulomb=amphere*sec
48. frequency of light given wavelength
F=c/?
C=e(A/d)
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Vot+1/2at^2=(V0+v/2)t
49. Find electric potential given electric field
E*r
Perpendicular to each other
The shortest wavelength
No image is formed
50. capacitors in parallel
Image is always upright virtual and smaller
K+U=constant
Incident ray
Ceq=C1+C2+C3 Veq=V1=V2=V3