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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. When is voltage constant across capacitors
Vrms=Vmax/v2
Counterclockwise is + clockwise is -
When in parallel
?=m/v kg/m^3 g/ml g/cm^3

2. -Beta- decay
E=V/d
Makes ?G more negative thus more spontaneous
Vbulk modulus
Neutron is converted into a proton and an electron is emitted

3. a lightbulb in a circuit is a
P=m?v
Resistor
B=(F/A)/(?V/V)
Equilibrium position

4. excess energy of a photon is...
Frequency
Converted to extra kinetic energy of the emitted electron
Minimum frequency of light that will cause emission of an electron
Virtual upright

5. Log(1000)=
Longitudinal
3
Resistor
Derive universal gravitation equation

6. gauge pressure in relation to the others
Diopters
Sin=1 cos=0
Difference between the absolute and atm pressure Pg=P- Patm
F=qvBetasin?

7. incandescence
Light emitted due to heat
A=v^2/r
W'=?E=?KE+?U
None

8. work as product of pressure and volume change
Sin=1 cos=0
Pressure to move - voltage when no charge is moving between 2 terminals
F1/A1=F2/A2
Vo^2+2a(?x)

9. wavelength in string
?=2L/n
3
Fluid resistance to flow
F1/A1=F2/A2

10. shear
Protons+neutrons
F=Gm1m2/r^2
Longitudinal
Force applied parallel to objects surface

11. period of pendulum
V^2=vo^2+2a?x ?x=1/2(vo+v)t
It jumps to higher energy level
Increase length increase resistance
2pvL/g

12. object placed beyond focal point in converging lens create What type of image
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
700nm -400nm
P=i^2r
Real inverted

13. center of curvature is...
F=E*A
Is equal to gravitational force
2 times the focal distance
Number of protons in nucleus

14. snell's law derivative
N is proportional to 1/?
F=ma
Decrease in pressure that fluid exerts on the walls of the container
V^2=vo^2+2a?x ?x=1/2(vo+v)t

15. to find acceleration due to gravity
Emf is positive
Q=CV
I=P/A
Derive universal gravitation equation

16. reflection law
F=mv^2/r
Degree=p/180 radian
Fk=
Angle of incidence=angle of reflection

17. Electric Potential equation
V=kQ/r
None
Beta=
Insulator

18. frequency of light given wavelength
Internal resistance is zero voltage=emf
Virtual upright
F=c/?
Convection

19. type of heat transfer involving the physical motion of heated material
Wave speed
Vcos?
Convection
As speed of fluid increases pressure and potential energy decrease

20. closed pipe frequency
Will never decrease capacitance
??=nv/4L
V/??
Minimum frequency of light that will cause emission of an electron

21. power (in general)
F=r/2
Work/time
E=Pt
F=nv/2L

22. formula for heat gained or lost during phase change
N*s/m^2
Sin=v2/2 cos=v2/2
Q=mL
700nm -400nm

23. magnetic field of solenoid
Beta=10Log(I/Io)
?=2L/n
It jumps to higher energy level
B=

24. energy of a photon is dependent on...
Zero resistance
R=pL/A
Frequency
The liquid itself not the object

25. magnetic field is created by loop wire - What is magnetic field at center of loop
P=i^2R=V^2/R=IV
(1/2)?v^2
W=qv
Beta=

26. surface tension results from
Cohesion
V=ED
3a=Beta
V=kq/r

27. work in electromagnetic field
Vo+at
W=qv
Fusion
U=QV

28. equation for kinetic friction
Diopters
Force and acceleration
Fk=
Minimum frequency of light that will cause emission of an electron

29. index of refraction (n) equation
Coulomb=amphere*sec
N=c/v
None
X=(initial horizontal v)(time in air)

30. absolute zero in K and C
Incident light is used to free electrons from a metal
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
???
0K -273

31. dielectric material
Force applied parallel to objects surface
Will never decrease capacitance
C=e(A/d)
1/2mv^2

32. find energy in circuit
E=Pt
None
Sin=1/2 cos=v3/2
3

33. when unlike charges move away from each other - U of the system
Pressure to move - voltage when no charge is moving between 2 terminals
4 Hz
Increases
T=rFsin?

34. equation for v between two parallel plates
T=1/f
V=ED
Derive universal gravitation equation
R=pL/A

35. loudness of sound
Spring constant
P=i^2r
Splitting of atomic nuclei
Intensity

36. torque formula
The liquid itself not the object
T=rFsin?
Vcos?
I=P/A

37. magnitude of magnetic field for current carrying wire
Fk=
T=rFsin?
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Beta=

38. calculate binding energy
Nsin?incident=nsin?refraction
Ampere (1C/s)
Work/time
(mass defect)(speed of light)^2

39. In what position does spring has its greatest speed
Equilibrium position
Charge/length
E=V/d
Upright image

40. freezing point of H2O in K and C
Holds whenever we have a change in energy ?E=?KE+?PE=0
273K 0
A=v^2/r
Resistor

41. work function
Energy required to free electron from given metal
The liquid itself not the object
E=???=hc/?
2pr

42. electric work
F=I(L*B)
U=q?v
0K -273
Decrease in pressure that fluid exerts on the walls of the container

43. continuity equation*
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Q=mc?t
Degree=p/180 radian
Real inverted

44. adhesion
E=1/2k(A^2)
Force a molecule of liquid feels toward molecules of some other substance
V=?A
Vo+at

45. mass defect
Approx .7
Difference between the mass of nucleus and the sum of nucleons
V/??
Image is always upright virtual and smaller

46. open pipe wavelength
Convection
?=2L/n
Approx .7
V=kQ/r

47. The bigger the cross - section of a resistor..
Derive universal gravitation equation
More flow less resistance
X=(initial horizontal v)(time in air)
Holds whenever we have a change in energy ?E=?KE+?PE=0

48. determine spring constant
Resistor
I=P/A
F=xk=mg
U=(1/2)kx^2

49. conservation of energy law
W=Fdcos?
More rigid material
Holds whenever we have a change in energy ?E=?KE+?PE=0
?=2L/n

50. electric field equation
E=kQ/r^2
N is proportional to 1/?
B=(F/A)/(?V/V)
???