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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. light bends away from normal when
N1>n2
Vrms=Vmax/v2
A sin?=n?
U=(1/2)kx^2

2. Electric Potential equation
V=kQ/r
Inverted image
Vot+1/2at^2=(V0+v/2)t
Diopters

3. material with very high resistance
Incident ray
No net force acting on it
EV
Insulator

4. 45
Sin=v2/2 cos=v2/2
When velocity of the fluid exceeds critical velocity
Beta=
1/f=1/o+ 1/i

5. sound waves are what kind of waves
Mass
Force a molecule of liquid feels toward the other molecules of the liquid
Irms=Imax/v2
Longitudinal

6. increasing emf has What effect on ?G
F1/A1=F2/A2
Resistor
Vbulk modulus
Makes ?G more negative thus more spontaneous

7. freezing point of H2O in K and C
As speed of fluid increases pressure and potential energy decrease
273K 0
Gas to solid
Proton or neutron

8. for object in SHM E=
F=q/e0
V=kQ/r
2pr
K+U=constant

9. power dissipated by resistor (3 ways)
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Equilibrium position
P=i^2R=V^2/R=IV
WATTS

10. fungal cells unlike animals cells do not contain
N*s/m^2
Real inverted image
Centrioles
Req=R1+R2+R3 Veq=V1+V2+V3

11. wave velocity=
???
U=q?v
Vot+1/2at^2=(V0+v/2)t
Bigger and beyond original object

12. potential energy of spring
Real image
Increase length increase resistance
U=(1/2)kx^2
No net force acting on it

13. continuity equation*
Slower light will travel
Virtual
Real inverted
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

14. plane mirrors create What type of image
Virtual
Y=(F/A)/(?L/L) stress over strain
??=nv/4L
V^2=vo^2+2a?x ?x=1/2(vo+v)t

15. material with low resistance
Conductor
image/object
Nsin?incident=nsin?refraction
Force a molecule of liquid feels toward molecules of some other substance

16. magnitude of current
I=?q/?t
3
0K -273
N1>n2

17. horizontal velocity of projectile
E=kQ/r^2
Neutron is converted into a proton and an electron is emitted
Virtual upright
Vcos?

18. cohesion
Photon energy must be greater than work function of the material
Zero resistance
3a=Beta
Force a molecule of liquid feels toward the other molecules of the liquid

19. Newtons 3rd law of motion
Sin=v3/2 cos=1/2
Approx .7
F=- F
3

20. what would a specific gravity of 1 indicate
(Vo+v)/2
100% of the object will be submerged but will not sink
Substance is less dense then water
Resistor

21. magnetic force
Real inverted image
A sin?=n?
F=qvBetasin?
20 Hz to 20 -000 Hz

22. image created by converging (concave) mirror when object is placed inside focal point
Image is always upright virtual and smaller
Virtual upright
Insulator
Nsin?incident=nsin?refraction

23. relate charge and current
Force applied parallel to objects surface
Fs=
Coulomb=amphere*sec
F=1/2(r)

24. electrolyte
Vrms=Vmax/v2
Solute whose solution is conductive
Kg*m/s^2
Spreading out of light as it passes through a narrow opening

25. all harmonics have the same
N1>n2
Radiation
Wave speed
Zero resistance

26. point of shape change beyond which a material can go back to normal
Yield strength
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Difference between the absolute and atm pressure Pg=P- Patm
Will never decrease capacitance

27. vertical velocity of projectile
Negative
Vsin?
Incident ray
?=vk/m=2p??

28. closed pipe wavelength
N2>n1
Emf is positive
?=4L/n
Force a molecule of liquid feels toward molecules of some other substance

29. sublimation
V/??
Sin=v2/2 cos=v2/2
Solid to gas
A=v^2/r

30. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
Charge/length
image/object
F=q/e0

31. ? of sound wave=
V/??
Sin=v3/2 cos=1/2
Makes ?G more negative thus more spontaneous
X=(initial horizontal v)(time in air)

32. unit for energy beside J
None
Force applied parallel to objects surface
U=1/2QV=1/2CV^2=1/2Q^2/C
EV

33. buoyant force is due to...
Solid to gas
Resistor
F=qvBetasin?
The liquid itself not the object

34. speed of light in a vacuum (c) =
???
E=V/d
MRT
Virtual upright smaller

35. mirror image is on same side as object
700nm -400nm
Real image
Counterclockwise is + clockwise is -
Spreading out of light as it passes through a narrow opening

36. beat frequencies for two frequencies differing by 4 Hz
F=Gm1m2/r^2
4 Hz
Body in motion remains in motion unless net force acts upon it
Energy required to free electron from given metal

37. velocity for a wave
?=vk/m=2p??
V=???
Counterclockwise is + clockwise is -
Sin=0 cos=1

38. small moduli value
Rate of doing work
Protons+neutrons
More malleable material
Amount of energy required for phase change from solid to liquid

39. stays constant when light travels through boundary
700nm -400nm
W=mg=?Vg
N2>n1
Frequency

40. under constant acceleration V(average)=
(Vo+v)/2
N1>n2
As speed of fluid increases pressure and potential energy decrease
Protons+neutrons

41. difference between Calorie and calorie
Higher temperature increases resistance
A Calorie is a nutritional term equal to 1000 calories
U=QV
EV

42. Find electric potential given electric field
V=?A
C=eoKA/D
Approx .7
E*r

43. under content acceleration v^2=
Vo^2+2a(?x)
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
V=???
U=1/2QV=1/2CV^2=1/2Q^2/C

44. volumetric rate of flow (property)
N is proportional to 1/?
Virtual upright
Constant for closed system independent of changes in area
T=1/f

45. magnetic field is created by loop wire - What is magnetic field at center of loop
Sin=v3/2 cos=1/2
Converted to extra kinetic energy of the emitted electron
Beta=
B=

46. kirchhoff's rule -- travel from negative to positive
Emf is positive
Holds whenever we have a change in energy ?E=?KE+?PE=0
V=kQ/r
Force applied parallel to objects surface

47. 'real' side of a lens
F=Gm1m2/r^2
2pr
Side opposite From which light originates
F=- kx

48. calculate lens power
Increases
E=1/2k(A^2)
P=1/f
When velocity of the fluid exceeds critical velocity

49. -Beta- decay
X=(initial horizontal v)(time in air)
When ?=90 b/c sin90=1
Neutron is converted into a proton and an electron is emitted
Virtual upright

50. intensity of sound
I=P/A
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Resistor
Photon energy must be greater than work function of the material