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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. calculate lens power
N2>n1
Points away from + and toward -
?=4L/n
P=1/f

2. osmotic pressure formula
MRT
Resistor
More flow less resistance
Mass

3. planet orbiting a star - centripetal force
?=m/v kg/m^3 g/ml g/cm^3
700nm -400nm
Number of protons
Is equal to gravitational force

4. find voltage (original)
V=kq/r
Beta=10Log(I/Io)
Incident ray
The liquid itself not the object

5. conservation of energy law
?x=1/2(v+vo)t
A Calorie is a nutritional term equal to 1000 calories
Holds whenever we have a change in energy ?E=?KE+?PE=0
T=rFsin?

6. Log(100)=
?=vk/m=2p??
2
Hydrostatics
V=ED

7. angular frequency of spring ?
V/??
T=rFsin?
Longitudinal
?=vk/m=2p??

8. Find electric potential given electric field
?=2L/n
N=c/v
E*r
The shortest wavelength

9. magnitude of magnetic field for current carrying wire
Beta=
F=nv/2L
W'=?E=?KE+?U
Substance is more dense then water

10. magnification=
image/object
Virtual upright
Sin=v3/2 cos=1/2
Angle of incidence=angle of reflection

11. equation for static friction
(mass defect)(speed of light)^2
Fs=
None
Beta=

12. splitting of white light in a prim is an example of...
I=?q/?t
Dispersion
(mass defect)(speed of light)^2
T=rFsin?

13. units for power of a lens
Diopters
When velocity of the fluid exceeds critical velocity
Bigger and beyond original object
Pressure to move - voltage when no charge is moving between 2 terminals

14. total horizontal distance traveled by projectile
X=(initial horizontal v)(time in air)
U=q?v
Virtual
N1>n2

15. charge of gamma particles
More malleable material
Gas to solid
1/2mv^2
None

16. Electric Potential equation
20 Hz to 20 -000 Hz
V=kQ/r
Fk=
Proton or neutron

17. shear
Force applied parallel to objects surface
?=m/v kg/m^3 g/ml g/cm^3
(Vo+v)/2
J=Force*Time=mv - mvo=?p

18. 45
Virtual upright smaller
F=xk=mg
Sin=v2/2 cos=v2/2
When ?=90 b/c sin90=1

19. capacitance of simple parallel plate (not according to Ohms)
V=kQ/r
C=e(A/d)
Mass number
Longitudinal

20. sound waves are what kind of waves
Longitudinal
F=nv/2L
F=E*A
F=c/?

21. intensity of sound
I=P/A
Increases
Pascal (Pa) N/m^2
E=V/d

22. units for capacitance
Farad 1 F= 1 c/v
Sin=v3/2 cos=1/2
WATTS
3a=Beta

23. for object in SHM E=
K+U=constant
Approx .7
F=mv^2/r
Zero resistance

24. magnetic field of solenoid
B=
Intensity
No net force acting on it
Force applied parallel to objects surface

25. lever arm is halved what happens to torque
N=c/v
M1v1=m2v2
It is halved
Vsin?

26. pressure
Neutron is converted into a proton and an electron is emitted
F/A
Amount of energy required for phase change from solid to liquid
Photon energy must be greater than work function of the material

27. density of water
Kg*m/s^2
Image is always upright virtual and smaller
F=- kx
1000 kg/m^3 or 1 g/cm^3

28. specific gravity greater than one
P=m?v
Substance is more dense then water
WATTS
N*s/m^2

29. under what conditions will light undergo total internal reflection
EV
Light travels from high n to lower n with an angle of incidence greater than the critical angle
???
Increases

30. Log(1000)=
3
Coulomb=amphere*sec
?=2L/n
Increases

31. resistance equation
M1v1=m2v2
Charge/length
R=pL/A
Difference between the mass of nucleus and the sum of nucleons

32. 90
Conduction
Sin=1 cos=0
Counterclockwise is + clockwise is -
Proton or neutron

33. 0
It is halved
100% of the object will be submerged but will not sink
?=2L/n
Sin=0 cos=1

34. Ohm's Law
V=IR
Gamma decay
2pr
Resistor

35. under constant acceleration - v=
Q=mc?t
Vo+at
Pascal (Pa) N/m^2
B=

36. sublimation
Solid to gas
Light travels from high n to lower n with an angle of incidence greater than the critical angle
?=4L/n
Vot+1/2at^2=(V0+v/2)t

37. z in isotopic notation
When in parallel
Number of protons
F/A
Number of protons in nucleus

38. a in isotopic notation
N*s/m^2
Counterclockwise is + clockwise is -
Mass number
Vot+1/2at^2=(V0+v/2)t

39. unit of current
Ampere (1C/s)
???
MRT
2pr

40. determine spring constant
F=xk=mg
Converted to extra kinetic energy of the emitted electron
T=1/f
Work/time

41. ideal ammeter
Zero resistance
Degree=p/180 radian
Upright image
P=i^2R=V^2/R=IV

42. When is torque maximum
The liquid itself not the object
When ?=90 b/c sin90=1
?=2L/n
373K 100

43. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
Wave speed
(1/2)?v^2
P=IA

44. speed of sound in proportional to...
F1/A1=F2/A2
Holds whenever we have a change in energy ?E=?KE+?PE=0
Vbulk modulus
Charge/length

45. force experienced by moving charge traveling parallel or antiparallel to magnetic field
N=c/v
None
V=kq/r
image/object

46. solves for power lost during transmission (one way)
Side opposite From which light originates
F=mv^2/r
Holds whenever we have a change in energy ?E=?KE+?PE=0
P=i^2r

47. a virtual image has what kind of image distance
Negative
2
Sin=0 cos=1
Farad 1 F= 1 c/v

48. difference between Calorie and calorie
Current*voltage
A Calorie is a nutritional term equal to 1000 calories
Force a molecule of liquid feels toward the other molecules of the liquid
Splitting of atomic nuclei

49. electromotive force
Pressure to move - voltage when no charge is moving between 2 terminals
Higher temperature increases resistance
Real inverted
J=Force*Time=mv - mvo=?p

50. velocity for a wave
V=???
Low voltage to high voltage
Converted to extra kinetic energy of the emitted electron
A sin?=n?