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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. torque is given by
700nm -400nm
Q=CV
T=rF where F is proportional to mass and r is distance from pivot
(mass defect)(speed of light)^2

2. audible wave frequency
Voltage
20 Hz to 20 -000 Hz
Spring constant
???

3. max frequency of X- ray depends ONLY on...
Energy of electrons
Buoyant force equals blocks weight
A sin?=n?
Bigger and beyond original object

4. magnification=
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
WATTS
Wave speed
image/object

5. study of fluids at rest
Hydrostatics
Minimum frequency of light that will cause emission of an electron
Longitudinal
1/2mv^2

6. a lightbulb in a circuit is a
Sin=1/2 cos=v3/2
Frequency
X=(initial horizontal v)(time in air)
Resistor

7. sound waves are what kind of waves
Longitudinal
Radiation
Electric fields of all the light waves are oriented in the same direction
U=q?v

8. adhesion
Beta=
Force a molecule of liquid feels toward molecules of some other substance
F=ma
Mass number

9. potential energy of spring
F=qvBetasin?
Virtual upright
Upright image
U=(1/2)kx^2

10. image created when converging (concave) mirror when object is placed beyond focal point
Real inverted image
Energy required to free electron from given metal
B=
Degree=p/180 radian

11. frequency of light given wavelength
More rigid material
2pvL/g
F=c/?
Incident ray

12. negative charge moves spontaneously from
???
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Low voltage to high voltage
I=P/A

13. larger the index of refraction..
When in parallel
Angle of incidence=angle of reflection
Derive universal gravitation equation
Slower light will travel

14. force due to electric field on single charge
E=neE n is excess charge
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Increases
U=1/2QV=1/2CV^2=1/2Q^2/C

15. 90
Virtual
Insulator
Sin=1 cos=0
K+U=constant

16. capacitors in parallel
Difference between the absolute and atm pressure Pg=P- Patm
Vcos?
Ceq=C1+C2+C3 Veq=V1=V2=V3
F=- kx

17. light ray that strikes a surface
The liquid itself not the object
C=e(A/d)
Q=mL
Incident ray

18. what creates a magnetic field
Emf is positive
Bigger and beyond original object
Moving charge
Angle of incidence=angle of reflection

19. loudness of sound
Intensity
Sin=v3/2 cos=1/2
Difference between the mass of nucleus and the sum of nucleons
Sin=0 cos=1

20. z in isotopic notation
Coulomb=amphere*sec
Higher temperature increases resistance
Number of protons
Conductor

21. horizontal velocity of projectile
Sin=0 cos=-1
Vcos?
1/2mv^2
Sin=1 cos=0

22. youngs modulus
Protons+neutrons
N2>n1
Y=(F/A)/(?L/L) stress over strain
Real inverted

23. wave velocity=
???
?V=BetaV?T
When ?=90 b/c sin90=1
Sin=0 cos=-1

24. find factor by which something has been changed
2 times the focal distance
New/old
Makes ?G more negative thus more spontaneous
Amount of energy required for phase change from solid to liquid

25. intensity of sound
Approx .7
I=P/A
Current*voltage
Photon energy must be greater than work function of the material

26. formula for heat gained or lost during phase change
It jumps to higher energy level
Gas to solid
F1/A1=F2/A2
Q=mL

27. calculate binding energy
(mass defect)(speed of light)^2
WATTS
Amount of energy required for phase change from solid to liquid
Bigger and beyond original object

28. light bends toward normal when
Moving charge
N2>n1
Substance is less dense then water
Sin=1 cos=0

29. energy of photon
373K 100
E=???=hc/?
Points away from + and toward -
Vo+at

30. Log(100)=
2pr
2
Zero resistance
Force and acceleration

31. charge on the plates of a capacitor
No image is formed
F1/A1=F2/A2
Q=CV
(1/2)?v^2

32. energy stored in capacitor
E=Pt
Difference between the mass of nucleus and the sum of nucleons
Q=CV
U=1/2QV=1/2CV^2=1/2Q^2/C

33. period (T) and frequency (f) of a tone are related by
Vcos?
Substance is less dense then water
1000 kg/m^3 or 1 g/cm^3
T=1/f

34. volume thermal expansion of a solid
W=Fdcos?
?V=BetaV?T
Convection
Virtual

35. Newtons 3rd law of motion
Nsin?incident=nsin?refraction
373K 100
F=- F
Yield strength

36. (+) magnification signifies
Approx .7
Virtual
U=(1/2)kx^2
Upright image

37. v2/2
Approx .7
3a=Beta
2pr
Beta=

38. freezing point of H2O in K and C
Convection
273K 0
B=
Slower light will travel

39. center of curvature is...
I=P/A
Sin=1 cos=0
2 times the focal distance
image/object

40. electric field and magnetic field are...
U=q?v
Points away from + and toward -
F=ma
Perpendicular to each other

41. body in translational equilibrium
No net force acting on it
Fs=
The shortest wavelength
T=1/f

42. boiling point of H2O in K and C
Buoyant force equals blocks weight
Holds whenever we have a change in energy ?E=?KE+?PE=0
W'=?E=?KE+?U
373K 100

43. frequency of spring is proportional to...
100% of the object will be submerged but will not sink
Y=(F/A)/(?L/L) stress over strain
Spring constant
Coulomb=amphere*sec

44. units for capacitance
V=?A
Vbulk modulus
Farad 1 F= 1 c/v
Real image

45. circumference of a circle
N is proportional to 1/?
2pr
Derive universal gravitation equation
Solid to gas

46. increasing emf has What effect on ?G
Coulomb=amphere*sec
Makes ?G more negative thus more spontaneous
Energy gained by particle with charge of e when moved through one volt
Diopters

47. planet orbiting a star - centripetal force
V/??
More flow less resistance
Is equal to gravitational force
1/2mv^2

48. what would a specific gravity of 1 indicate
Degree=p/180 radian
Wave speed
100% of the object will be submerged but will not sink
When ?=90 b/c sin90=1

49. Newtons 2nd law of motion
Body in motion remains in motion unless net force acts upon it
V/??
F=ma
Fk=

50. electric work
U=q?v
Equilibrium position
Vcos?
Force and acceleration

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MCAT Physics Formulas

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