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MCAT Physics Formulas

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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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