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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. z in isotopic notation
N1>n2
U=1/2QV=1/2CV^2=1/2Q^2/C
Number of protons
Fk=

2. dynamic pressure
Ampere (1C/s)
Constant for closed system independent of changes in area
(1/2)?v^2
Virtual upright

3. continuity equation*
B=
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
F=E*A
Energy gained by particle with charge of e when moved through one volt

4. across capacitor what remains constant
Sin=v2/2 cos=v2/2
Voltage
Force a molecule of liquid feels toward the other molecules of the liquid
M1v1=m2v2

5. Bernoulli's equation
Decrease in pressure that fluid exerts on the walls of the container
Number of protons
A sin?=n?
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

6. find energy in circuit
Vot+1/2at^2=(V0+v/2)t
E=Pt
Internal resistance is zero voltage=emf
Upright image

7. amplitude of spring is proportional to...
Force and acceleration
Beta=
V^2=vo^2+2a?x ?x=1/2(vo+v)t
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

8. polarized light
E=kQ/r^2
When in parallel
Electric fields of all the light waves are oriented in the same direction
E=V/d

9. Formula for centripetal force
N2>n1
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
F=mv^2/r
image/object

10. audible wave frequency
Radiation
20 Hz to 20 -000 Hz
Emf is positive
3

11. The bigger the cross - section of a resistor..
Difference between the absolute and atm pressure Pg=P- Patm
More flow less resistance
Cohesion
Increases

12. calculate lens power
?=2L/n
Vot+1/2at^2=(V0+v/2)t
P=1/f
Beta=10Log(I/Io)

13. In what position does spring has its greatest speed
Fluid resistance to flow
Equilibrium position
Body in motion remains in motion unless net force acts upon it
None

14. find voltage (original)
Fusion
V=kq/r
Ceq=C1+C2+C3 Veq=V1=V2=V3
(mass defect)(speed of light)^2

15. frequency of spring is proportional to...
700nm -400nm
Ceq=C1+C2+C3 Veq=V1=V2=V3
N1>n2
Spring constant

16. mass defect
Req=R1+R2+R3 Veq=V1+V2+V3
Difference between the mass of nucleus and the sum of nucleons
Intensity
Body in motion remains in motion unless net force acts upon it

17. negative charge moves spontaneously from
Light emitted due to heat
Sin=v2/2 cos=v2/2
B=(F/A)/(?V/V)
Low voltage to high voltage

18. Newtons 3rd law of motion
U=QV
Number of protons
F=- F
Converted to extra kinetic energy of the emitted electron

19. electric field maximum of insulating sphere
Surface
Vot+1/2at^2=(V0+v/2)t
Approx .7
Light emitted due to heat

20. when unlike charges move away from each other - U of the system
Slower light will travel
Zero resistance
Solute whose solution is conductive
Increases

21. ?
Q=mL
Vrms=Vmax/v2
Charge/length
Number of protons in nucleus

22. surface tension results from
Substance is more dense then water
Cohesion
Sin=v3/2 cos=1/2
F=nv/2L

23. increase in velocity of a fluid is associated with
Moving charge
Amount of energy required for phase change from solid to liquid
Decrease in pressure that fluid exerts on the walls of the container
None

24. As current flows through a resistor
F=1/2(r)
E=Pt
Charge remains constant
W'=?E=?KE+?U

25. electric field and magnetic field are...
Vo^2+2a(?x)
Difference between the absolute and atm pressure Pg=P- Patm
Perpendicular to each other
Mass number

26. torque formula
T=rFsin?
Sin=0 cos=-1
Counterclockwise is + clockwise is -
Increase length increase resistance

27. sound level
E*r
Will never decrease capacitance
(1/2)?v^2
Beta=10Log(I/Io)

28. ? of sound wave=
W=Fdcos?
V/??
Current*voltage
100% of the object will be submerged but will not sink

29. magnetic field of solenoid
Low voltage to high voltage
Virtual
Weighted average of the masses of the element
B=

30. magnification=
image/object
Dispersion
C=eoKA/D
Resistor

31. stays constant when light travels through boundary
N*s/m^2
Image is always upright virtual and smaller
Wave speed
Frequency

32. Gauss's Law
E=???=hc/?
F=c/?
Frequency
F=q/e0

33. tone with shortest period has
Emf is negative
The shortest wavelength
Vbulk modulus
N=c/v

34. What does atoms atomic weight represent
Weighted average of the masses of the element
Vot+1/2at^2=(V0+v/2)t
More malleable material
W=mg=?Vg

35. formula for solution which is diluted related to initial concentration
Charge/length
M1v1=m2v2
W=Fdcos?
Beta=

36. cohesion
F1/A1=F2/A2
U=QV
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Force a molecule of liquid feels toward the other molecules of the liquid

37. light ray that strikes a surface
??=nv/4L
N=c/v
Incident ray
None

38. electric field of parallel plate capacitor
V=???
Increase length increase resistance
E=V/d
As speed of fluid increases pressure and potential energy decrease

39. study of fluids at rest
Hydrostatics
Y=(F/A)/(?L/L) stress over strain
F=1/2(r)
Is equal to gravitational force

40. material with moderate resistance
Perpendicular to each other
V=IR
Current*voltage
Resistor

41. under constant acceleration V(average)=
Bigger and beyond original object
Weighted average of the masses of the element
Internal resistance is zero voltage=emf
(Vo+v)/2

42. fission
Splitting of atomic nuclei
Req=R1+R2+R3 Veq=V1+V2+V3
T=1/f
Moving charge

43. light bends away from normal when
Vcos?
E=V/d
N1>n2
Virtual

44. volume thermal expansion of a solid
Is equal to gravitational force
T=rFsin?
?V=BetaV?T
Sin=1/2 cos=v3/2

45. frequency of spring is inversely proportional to...
Derive universal gravitation equation
F/A
373K 100
Mass

46. temperature and resistors
2pr
None
Higher temperature increases resistance
F=E*A

47. object placed inside focal point in converging lens create What type of image
Virtual upright
W=Fdcos?
Irms=Imax/v2
Negative

48. centripetal acceleration
1000 kg/m^3 or 1 g/cm^3
A=v^2/r
Force a molecule of liquid feels toward the other molecules of the liquid
Kg*m/s^2

49. kirchhoff's rule -- travel from negative to positive
Resistor
Emf is positive
Proton or neutron
Fluid resistance to flow

50. lever arm is halved what happens to torque
It is halved
Weighted average of the masses of the element
E=V/d
?=m/v kg/m^3 g/ml g/cm^3