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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. Electric Potential equation
Will never decrease capacitance
Incident ray
Current*voltage
V=kQ/r

2. under constant acceleration V(average)=
EV
(Vo+v)/2
No image is formed
MRT

3. surface tension results from
Cohesion
Difference between the absolute and atm pressure Pg=P- Patm
Incident light is used to free electrons from a metal
B=

4. light ray that strikes a surface
Side opposite From which light originates
Buoyant force equals blocks weight
Force and acceleration
Incident ray

5. electrolyte
V=?A
Solute whose solution is conductive
Diopters
Charge/area

6. osmotic pressure formula
Zero resistance
Virtual upright smaller
MRT
Ampere (1C/s)

7. capacitance of simple parallel plate (not according to Ohms)
Force a molecule of liquid feels toward molecules of some other substance
C=e(A/d)
The shortest wavelength
Q=mc?t

8. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Substance is more dense then water
V=?A
Charge/area

9. image created when converging (concave) mirror when object is placed beyond focal point
273K 0
As speed of fluid increases pressure and potential energy decrease
I=?q/?t
Real inverted image

10. gravitational force formula
Solute whose solution is conductive
?=2L/n
C=e(A/d)
F=Gm1m2/r^2

11. viscosity
Fluid resistance to flow
Virtual upright
A=v^2/r
M1v1=m2v2

12. (+) magnification signifies
Q=mc?t
Upright image
W=mg=?Vg
Intensity

13. units for newtons
P=1/f
W'=?E=?KE+?U
Kg*m/s^2
Rate of doing work

14. intensity of sound
Minimum frequency of light that will cause emission of an electron
The liquid itself not the object
Converted to extra kinetic energy of the emitted electron
I=P/A

15. 60
U=(1/2)kx^2
Spring constant
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Sin=v3/2 cos=1/2

16. closed pipe wavelength
Charge remains constant
?=4L/n
Vrms=Vmax/v2
?L=aL?T

17. specific gravity is less than one
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
F=E*A
Fnet=0 thus Fg=Fs mg=kx
Substance is less dense then water

18. units for capacitance
Farad 1 F= 1 c/v
More malleable material
Coulomb=amphere*sec
Proton or neutron

19. equation for static friction
F=ma
Solid to gas
Fs=
Ampere (1C/s)

20. density with units
As speed of fluid increases pressure and potential energy decrease
?=m/v kg/m^3 g/ml g/cm^3
Emf is positive
EV

21. total energy of spring system
3a=Beta
E=1/2k(A^2)
Insulator
When in parallel

22. material with low resistance
T=rFsin?
W'=?E=?KE+?U
Conductor
More rigid material

23. dynamic pressure
C=eoKA/D
Farad 1 F= 1 c/v
(1/2)?v^2
Virtual

24. magnetic force
F=qvBetasin?
I=?q/?t
T=rF where F is proportional to mass and r is distance from pivot
Y=(F/A)/(?L/L) stress over strain

25. for photoelectric material to liberate an electron
Vsin?
Photon energy must be greater than work function of the material
Force a molecule of liquid feels toward the other molecules of the liquid
It jumps to higher energy level

26. stays constant when light travels through boundary
Surface
Weighted average of the masses of the element
Frequency
Hydrostatics

27. horizontal velocity of projectile
F=nv/2L
A sin?=n?
Vcos?
C=e(A/d)

28. magnetic field force on current carrying wire
F=I(L*B)
Vo+at
W=qv
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

29. small moduli value
More malleable material
Real inverted
Irms=Imax/v2
None

30. Newtons 1st law of motion
Body in motion remains in motion unless net force acts upon it
Force a molecule of liquid feels toward molecules of some other substance
Counterclockwise is + clockwise is -
Number of protons

31. to find acceleration due to gravity
image/object
Derive universal gravitation equation
Yield strength
?x=1/2(v+vo)t

32. find energy in circuit
M1v1=m2v2
E=Pt
I=?q/?t
Degree=p/180 radian

33. relate velocities and displacement 2 ways
Q=CV
Current*voltage
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Is equal to gravitational force

34. negative charge moves spontaneously from
Virtual upright smaller
Low voltage to high voltage
1000 kg/m^3 or 1 g/cm^3
Force a molecule of liquid feels toward molecules of some other substance

35. 45
Sin=v2/2 cos=v2/2
Incident ray
Zero resistance
Dispersion

36. open pipe frequency
F=nv/2L
B=
V=kq/r
None

37. As current flows through a resistor
Vrms=Vmax/v2
Charge remains constant
C=eoKA/D
Electric fields of all the light waves are oriented in the same direction

38. body in translational equilibrium
Cohesion
No net force acting on it
It jumps to higher energy level
U=QV

39. 'real' side of a lens
Side opposite From which light originates
Substance is more dense then water
100% of the object will be submerged but will not sink
0K -273

40. tone with shortest period has
Work/time
Fnet=0 thus Fg=Fs mg=kx
The shortest wavelength
E=kQ/r^2

41. kirchhoff's rule -- travel from negative to positive
Emf is positive
Angle of incidence=angle of reflection
U=QV
F=xk=mg

42. energy of moving proton
100% of the object will be submerged but will not sink
Diopters
V=???
1/2mv^2

43. find factor by which something has been changed
F=mv^2/r
New/old
Substance is more dense then water
?x=1/2(v+vo)t

44. incandescence
When velocity of the fluid exceeds critical velocity
20 Hz to 20 -000 Hz
1/f=1/o+ 1/i
Light emitted due to heat

45. When is torque maximum
Difference between the mass of nucleus and the sum of nucleons
C=eoKA/D
When ?=90 b/c sin90=1
Ampere (1C/s)

46. a in isotopic notation
?=2L/n
Mass number
?=4L/n
Sin=0 cos=-1

47. power dissipated by resistor (3 ways)
P=i^2R=V^2/R=IV
Virtual upright smaller
None
EV

48. temperature and resistors
F=1/2(r)
Higher temperature increases resistance
Neutron is converted into a proton and an electron is emitted
Difference between the mass of nucleus and the sum of nucleons

49. magnitude of current
N*s/m^2
None
(mass defect)(speed of light)^2
I=?q/?t

50. power of sound wave
R=pL/A
P=IA
E=neE n is excess charge
?L=aL?T