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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. max frequency of X- ray depends ONLY on...
Virtual upright
C=eoKA/D
Sin=v2/2 cos=v2/2
Energy of electrons

2. The bigger the cross - section of a resistor..
Zero resistance
More flow less resistance
Cohesion
F1/A1=F2/A2

3. capacitors in parallel
Low voltage to high voltage
V=kq/r
Ceq=C1+C2+C3 Veq=V1=V2=V3
When in parallel

4. study of fluids at rest
Image is always upright virtual and smaller
F1/A1=F2/A2
Hydrostatics
P=m?v

5. under content acceleration v^2=
K+U=constant
Higher temperature increases resistance
Vo^2+2a(?x)
Substance is less dense then water

6. gravitational force formula
2pvm/k
Ceq=C1+C2+C3 Veq=V1=V2=V3
F=Gm1m2/r^2
???

7. In what position does spring has its greatest speed
Equilibrium position
It is halved
W'=?E=?KE+?U
Insulator

8. energy of a photon is dependent on...
E=kQ/r^2
Charge remains constant
Yield strength
Frequency

9. dynamic pressure
When ?=90 b/c sin90=1
Diopters
(1/2)?v^2
Vo^2+2a(?x)

10. energy of moving proton
W=qv
1/2mv^2
Hydrostatics
Will never decrease capacitance

11. total horizontal distance traveled by projectile
N2>n1
Beta=
X=(initial horizontal v)(time in air)
When ?=90 b/c sin90=1

12. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
Light travels from high n to lower n with an angle of incidence greater than the critical angle
C=eoKA/D
Equilibrium position

13. diffraction
N*s/m^2
Q=mc?t
Spreading out of light as it passes through a narrow opening
P=i^2r

14. period of pendulum
(1/2)?v^2
Conduction
2pvL/g
U=QV

15. equation for v between two parallel plates
Emf is positive
F=q/e0
V=ED
A sin?=n?

16. vertical velocity of projectile
Vsin?
Beta=
Yield strength
Beta=10Log(I/Io)

17. 45
It jumps to higher energy level
Sin=v2/2 cos=v2/2
Mass number
Substance is more dense then water

18. electric field equation
It is halved
E=kQ/r^2
EV
P=i^2r

19. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
A sin?=n?
P=i^2r
Substance is more dense then water

20. material with very high resistance
A=v^2/r
Insulator
W=mg=?Vg
C=e(A/d)

21. large moduli value
Points away from + and toward -
F=Gm1m2/r^2
Pascal (Pa) N/m^2
More rigid material

22. frequency of spring is proportional to...
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Vcos?
Spring constant
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

23. When does turbulence in a fluid arise
Current*voltage
F=ma
When velocity of the fluid exceeds critical velocity
Low voltage to high voltage

24. buoyant force is due to...
The liquid itself not the object
Convection
Slower light will travel
Virtual upright

25. momentum
Surface
P=m?v
V=ED
?=m/v kg/m^3 g/ml g/cm^3

26. capacitance equation in circuit
C=Q/V
Side opposite From which light originates
None
1/2mv^2

27. density of water
Internal resistance is zero voltage=emf
Holds whenever we have a change in energy ?E=?KE+?PE=0
1000 kg/m^3 or 1 g/cm^3
When velocity of the fluid exceeds critical velocity

28. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Number of protons
Frequency
Side opposite From which light originates
None

29. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Conduction
It jumps to higher energy level
F=qvBetasin?
New/old

30. What is displacement equation
Protons+neutrons
?L=aL?T
?x=1/2(v+vo)t
Centrioles

31. electromotive force
F=xk=mg
Ampere (1C/s)
Minimum frequency of light that will cause emission of an electron
Pressure to move - voltage when no charge is moving between 2 terminals

32. work as product of pressure and volume change
Centrioles
Insulator
F1/A1=F2/A2
As speed of fluid increases pressure and potential energy decrease

33. fission
Holds whenever we have a change in energy ?E=?KE+?PE=0
Fluid resistance to flow
Splitting of atomic nuclei
WATTS

34. charge on the plates of a capacitor
Moving charge
Q=CV
Zero resistance
M1v1=m2v2

35. power dissipated by resistor (3 ways)
Minimum frequency of light that will cause emission of an electron
P=i^2R=V^2/R=IV
Body in motion remains in motion unless net force acts upon it
New/old

36. charge of gamma particles
None
2pvL/g
1/f=1/o+ 1/i
Conductor

37. Newtons 2nd law of motion
Sin=0 cos=-1
?=4L/n
Virtual upright
F=ma

38. 30
B=
1/f=1/o+ 1/i
Higher temperature increases resistance
Sin=1/2 cos=v3/2

39. dielectric material
Will never decrease capacitance
Perpendicular to each other
Conduction
Farad 1 F= 1 c/v

40. equation for kinetic friction
Fk=
Vbulk modulus
Minimum frequency of light that will cause emission of an electron
Vsin?

41. speed of light in a vacuum (c) =
MRT
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
???
Counterclockwise is + clockwise is -

42. fungal cells unlike animals cells do not contain
Centrioles
2pvm/k
Will never decrease capacitance
When ?=90 b/c sin90=1

43. formula for impulse (J)
F=nv/2L
Irms=Imax/v2
Conductor
J=Force*Time=mv - mvo=?p

44. mass defect
Q=CV
T=rF where F is proportional to mass and r is distance from pivot
Difference between the mass of nucleus and the sum of nucleons
Q=mc?t

45. kirchhoff's rule -- travel from positive to negative
F/A
Emf is negative
Conductor
Vcos?

46. As current flows through a resistor
R=pL/A
Charge remains constant
F=I(L*B)
?=4L/n

47. when unlike charges move away from each other - U of the system
Substance is less dense then water
Increases
Emf is negative
???

48. a virtual image has what kind of image distance
Incident light is used to free electrons from a metal
F/A
More malleable material
Negative

49. for photoelectric material to liberate an electron
Work/time
P=IA
Photon energy must be greater than work function of the material
None

50. photoelectric effect
A=v^2/r
Approx .7
When ?=90 b/c sin90=1
Incident light is used to free electrons from a metal