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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. wave velocity=
Virtual upright smaller
Degree=p/180 radian
???
None

2. material with very high resistance
T=rFsin?
Insulator
Sin=1 cos=0
Pressure to move - voltage when no charge is moving between 2 terminals

3. s
E=kQ/r^2
Charge/area
Mass number
K+U=constant

4. units for newtons
Kg*m/s^2
Neutron is converted into a proton and an electron is emitted
2 times the focal distance
Real inverted image

5. shear
P=IV
Difference between the absolute and atm pressure Pg=P- Patm
Force applied parallel to objects surface
Fs=

6. power of sound wave
Zero resistance
E=1/2k(A^2)
P=IA
I=P/A

7. As current flows through a resistor
2pvm/k
Charge remains constant
Will never decrease capacitance
Ampere (1C/s)

8. z in isotopic notation
Buoyant force equals blocks weight
I=?q/?t
Number of protons
?x=1/2(v+vo)t

9. magnification=
image/object
Coulomb=amphere*sec
Mass
F=ma

10. charge of gamma particles
4 Hz
Slower light will travel
None
When in parallel

11. focal for spherical mirrors
F=1/2(r)
N2>n1
Will never decrease capacitance
Vo+at

12. light bends away from normal when
N1>n2
Vsin?
P=1/f
Sin=0 cos=1

13. across capacitor what remains constant
I=P/A
Minimum frequency of light that will cause emission of an electron
Voltage
Intensity

14. fission
?=2L/n
Nsin?incident=nsin?refraction
Splitting of atomic nuclei
Q=CV

15. parabolic mirror: object in front of focal point
??=nv/4L
Virtual upright
20 Hz to 20 -000 Hz
(mass defect)(speed of light)^2

16. sound level
Wave speed
Virtual
F=r/2
Beta=10Log(I/Io)

17. power (in general)
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Splitting of atomic nuclei
Work/time
Mass

18. when spring is at rest
Farad 1 F= 1 c/v
F/A
Fnet=0 thus Fg=Fs mg=kx
X=(initial horizontal v)(time in air)

19. if cell is not driving current
Difference between the mass of nucleus and the sum of nucleons
P=1/f
Internal resistance is zero voltage=emf
Energy required to free electron from given metal

20. increase in velocity of a fluid is associated with
The shortest wavelength
Mass number
Frequency
Decrease in pressure that fluid exerts on the walls of the container

21. mirror image is on same side as object
Approx .7
Real image
Degree=p/180 radian
20 Hz to 20 -000 Hz

22. velocity for a wave
V=???
?L=aL?T
X=(initial horizontal v)(time in air)
Vo^2+2a(?x)

23. equation for static friction
Fs=
C=eoKA/D
Conductor
Cohesion

24. force due to electric field on single charge
More flow less resistance
E=neE n is excess charge
Energy of electrons
?=2L/n

25. frequency in string
Surface
Sin=1/2 cos=v3/2
The liquid itself not the object
F=nv/2L

26. Gauss's Law
MRT
Fk=
F=q/e0
100% of the object will be submerged but will not sink

27. dynamic pressure
Pascal (Pa) N/m^2
E=Pt
(1/2)?v^2
B=

28. Newtons 1st law of motion
Body in motion remains in motion unless net force acts upon it
Fk=
Vrms=Vmax/v2
Negative

29. period of pendulum
?L=aL?T
2pvL/g
Resistor
Negative

30. kirchhoff's rule -- travel from negative to positive
Emf is positive
Vot+1/2at^2=(V0+v/2)t
???
Sin=v2/2 cos=v2/2

31. capacitance of simple parallel plate (not according to Ohms)
20 Hz to 20 -000 Hz
C=e(A/d)
I=?q/?t
P=i^2r

32. magnitude of current
V=IR
V^2=vo^2+2a?x ?x=1/2(vo+v)t
I=?q/?t
Force and acceleration

33. electrical power
P=IV
1/f=1/o+ 1/i
Spring constant
More rigid material

34. object placed beyond focal point in converging lens create What type of image
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Real inverted
V=kQ/r
No image is formed

35. potential energy of spring
U=(1/2)kx^2
Virtual upright
It jumps to higher energy level
Force and acceleration

36. polarized light
2pr
?x=1/2(v+vo)t
E=1/2k(A^2)
Electric fields of all the light waves are oriented in the same direction

37. charge of beta particles
?=m/v kg/m^3 g/ml g/cm^3
Negative
?=2L/n
V=kQ/r

38. find factor by which something has been changed
New/old
Virtual upright smaller
Mass number
Sin=1 cos=0

39. study of fluids at rest
Conductor
U=1/2QV=1/2CV^2=1/2Q^2/C
Hydrostatics
Upright image

40. calculate binding energy
X=(initial horizontal v)(time in air)
More rigid material
As speed of fluid increases pressure and potential energy decrease
(mass defect)(speed of light)^2

41. equation relating heat gained and temperature change
Q=mc?t
B=(F/A)/(?V/V)
A=v^2/r
?x=1/2(v+vo)t

42. stays constant when light travels through boundary
Weighted average of the masses of the element
As speed of fluid increases pressure and potential energy decrease
Frequency
More rigid material

43. electric work
Negative
U=q?v
?L=aL?T
Pascal (Pa) N/m^2

44. voltage of AC
B=(F/A)/(?V/V)
Coulomb=amphere*sec
(mass defect)(speed of light)^2
Vrms=Vmax/v2

45. type of heat transfer involving the physical motion of heated material
Image is always upright virtual and smaller
Mass
Convection
Ceq=C1+C2+C3 Veq=V1=V2=V3

46. work function
Light travels from high n to lower n with an angle of incidence greater than the critical angle
T=rF where F is proportional to mass and r is distance from pivot
?=2L/n
Energy required to free electron from given metal

47. 45
No image is formed
E=???=hc/?
Sin=v2/2 cos=v2/2
Longitudinal

48. find voltage (original)
Beta=
P=IV
V=kq/r
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

49. point of shape change beyond which a material can go back to normal
Radiation
N2>n1
?=2L/n
Yield strength

50. units for power of a lens
???
More rigid material
P=i^2r
Diopters