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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. audible wave frequency
?=m/v kg/m^3 g/ml g/cm^3
3
20 Hz to 20 -000 Hz
M1v1=m2v2

2. only radioactive decay that conserves the nucleus charge
Vo+at
Sin=v2/2 cos=v2/2
Gamma decay
100% of the object will be submerged but will not sink

3. energy of moving proton
V/??
Vbulk modulus
A sin?=n?
1/2mv^2

4. When does turbulence in a fluid arise
Farad 1 F= 1 c/v
Sin=v2/2 cos=v2/2
When velocity of the fluid exceeds critical velocity
Difference between the absolute and atm pressure Pg=P- Patm

5. speed of light in a vacuum (c) =
Q=mc?t
Amount of energy required for phase change from solid to liquid
???
U=QV

6. center of curvature is...
T=rF where F is proportional to mass and r is distance from pivot
E=kQ/r^2
2 times the focal distance
E=Pt

7. potential energy of spring
3
U=(1/2)kx^2
N=c/v
None

8. units for viscosity
N*s/m^2
U=q?v
Real inverted
?=vk/m=2p??

9. power dissipated by resistor (3 ways)
Splitting of atomic nuclei
P=i^2R=V^2/R=IV
V/??
V=ED

10. magnetic field of solenoid
F=c/?
0K -273
B=
More malleable material

11. When is voltage constant across capacitors
U=(1/2)kx^2
?=2L/n
W=Fdcos?
When in parallel

12. negative charge moves spontaneously from
Longitudinal
Increase length increase resistance
Low voltage to high voltage
1/f=1/o+ 1/i

13. material with moderate resistance
It jumps to higher energy level
Virtual
Kg*m/s^2
Resistor

14. current of AC
Will never decrease capacitance
Longitudinal
Irms=Imax/v2
No net force acting on it

15. 60
Conduction
?=2L/n
Sin=v3/2 cos=1/2
4 Hz

16. under content acceleration v^2=
N2>n1
Vo^2+2a(?x)
C=Q/V
Incident ray

17. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
I=?q/?t
U=(1/2)kx^2
Vo^2+2a(?x)
Conduction

18. What is heat of fusion
X=(initial horizontal v)(time in air)
Amount of energy required for phase change from solid to liquid
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Upright image

19. diffraction
Spreading out of light as it passes through a narrow opening
F=nv/2L
Vot+1/2at^2=(V0+v/2)t
W'=?E=?KE+?U

20. -Beta- decay
F=mv^2/r
Sin=1 cos=0
Neutron is converted into a proton and an electron is emitted
Emf is negative

21. all harmonics have the same
More malleable material
Weighted average of the masses of the element
WATTS
Wave speed

22. relate charge and current
Coulomb=amphere*sec
Makes ?G more negative thus more spontaneous
Light emitted due to heat
Conductor

23. units for power of a lens
Charge/area
Inverted image
E=kQ/r^2
Diopters

24. a in isotopic notation
Perpendicular to each other
Energy of electrons
Sin=0 cos=1
Mass number

25. when spring is at rest
It jumps to higher energy level
Incident ray
F/A
Fnet=0 thus Fg=Fs mg=kx

26. magnification=
image/object
Sin=1 cos=0
Charge/area
Charge/length

27. speed of sound in proportional to...
Vbulk modulus
Y=(F/A)/(?L/L) stress over strain
2 times the focal distance
Splitting of atomic nuclei

28. under constant acceleration - v=
Energy of electrons
U=(1/2)kx^2
Vo+at
Gas to solid

29. parabolic mirror: image at focal point
No image is formed
Ampere (1C/s)
Surface
1/f=1/o+ 1/i

30. sublimation
Kg*m/s^2
None
F=nv/2L
Solid to gas

31. electric field maximum of insulating sphere
Fnet=0 thus Fg=Fs mg=kx
Vsin?
Surface
??=nv/4L

32. thermal expansion of a solid
Cohesion
Approx .7
?L=aL?T
No net force acting on it

33. frequency of spring is proportional to...
Spring constant
Internal resistance is zero voltage=emf
Buoyant force equals blocks weight
Pascal (Pa) N/m^2

34. momentum
Number of protons in nucleus
P=m?v
N is proportional to 1/?
Mass number

35. work in electromagnetic field
A sin?=n?
W=qv
B=
V=IR

36. ?
Diopters
(Vo+v)/2
Body in motion remains in motion unless net force acts upon it
Charge/length

37. across capacitor what remains constant
Virtual upright
Voltage
Charge remains constant
Force a molecule of liquid feels toward molecules of some other substance

38. force due to electric field on single charge
?x=1/2(v+vo)t
V=???
E=???=hc/?
E=neE n is excess charge

39. energy stored in capacitor
Sin=v2/2 cos=v2/2
Cohesion
image/object
U=1/2QV=1/2CV^2=1/2Q^2/C

40. equation for static friction
Fs=
Vbulk modulus
Sin=1 cos=0
Light emitted due to heat

41. period of pendulum
2pvL/g
0K -273
Q=mc?t
100% of the object will be submerged but will not sink

42. Gauss's Law
Degree=p/180 radian
Vo+at
N*s/m^2
F=q/e0

43. power (in general)
Counterclockwise is + clockwise is -
Work/time
Coulomb=amphere*sec
Force a molecule of liquid feels toward the other molecules of the liquid

44. large moduli value
More rigid material
Splitting of atomic nuclei
?=vk/m=2p??
Sin=v3/2 cos=1/2

45. 90
Neutron is converted into a proton and an electron is emitted
Sin=1 cos=0
Fusion
Fnet=0 thus Fg=Fs mg=kx

46. torque formula
T=rFsin?
Will never decrease capacitance
M1v1=m2v2
Difference between the absolute and atm pressure Pg=P- Patm

47. formula for heat gained or lost during phase change
Q=mL
Coulomb=amphere*sec
Electric fields of all the light waves are oriented in the same direction
Is equal to gravitational force

48. pressure
Spreading out of light as it passes through a narrow opening
W=qv
F/A
Radiation

49. study of fluids at rest
Hydrostatics
Cohesion
??=nv/4L
Emf is negative

50. adhesion
Points away from + and toward -
N1>n2
Electric fields of all the light waves are oriented in the same direction
Force a molecule of liquid feels toward molecules of some other substance