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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. surface tension results from
Cohesion
Current*voltage
J=Force*Time=mv - mvo=?p
Solid to gas

2. work as product of pressure and volume change
F1/A1=F2/A2
1/f=1/o+ 1/i
Q=mL
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

3. charge of gamma particles
None
Bigger and beyond original object
Image is always upright virtual and smaller
Negative

4. Capacitors in series
Increases
P=1/f
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
K+U=constant

5. Newtons 3rd law of motion
2
F=- kx
Ceq=C1+C2+C3 Veq=V1=V2=V3
F=- F

6. (-) magnification signifies
Inverted image
Buoyant force equals blocks weight
Q=mc?t
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

7. under constant acceleration V(average)=
Difference between the mass of nucleus and the sum of nucleons
A sin?=n?
Mass
(Vo+v)/2

8. body in translational equilibrium
F/A
F=mv^2/r
No net force acting on it
Proton or neutron

9. material with low resistance
Conductor
No image is formed
Fk=
Upright image

10. ideal ammeter
4 Hz
Force applied parallel to objects surface
Zero resistance
Points away from + and toward -

11. calculate lens power
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
P=1/f
Q=mc?t
Inverted image

12. work as it relates to constant force
W=Fdcos?
Centrioles
Charge remains constant
3

13. absolute zero in K and C
A=v^2/r
0K -273
2 times the focal distance
Frequency

14. buoyant force is due to...
The liquid itself not the object
As speed of fluid increases pressure and potential energy decrease
Mass number
?=m/v kg/m^3 g/ml g/cm^3

15. magnetic field is created by loop wire - What is magnetic field at center of loop
W=qv
Centrioles
Beta=
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

16. volume thermal expansion of a solid
More malleable material
Real inverted
E=???=hc/?
?V=BetaV?T

17. wavelength in string
Req=R1+R2+R3 Veq=V1+V2+V3
?=2L/n
J=Force*Time=mv - mvo=?p
It is halved

18. increasing emf has What effect on ?G
Y=(F/A)/(?L/L) stress over strain
Gas to solid
Makes ?G more negative thus more spontaneous
273K 0

19. specific gravity is less than one
Resistor
Substance is less dense then water
Sin=1 cos=0
Number of protons in nucleus

20. find factor by which something has been changed
U=q?v
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Solid to gas
New/old

21. horizontal velocity of projectile
Minimum frequency of light that will cause emission of an electron
?=4L/n
Gas to solid
Vcos?

22. units for power of a lens
2
Pascal (Pa) N/m^2
Diopters
T=1/f

23. process of combing smaller nuclei to create larger nuclei
Increases
Y=(F/A)/(?L/L) stress over strain
F=xk=mg
Fusion

24. mass defect
Difference between the mass of nucleus and the sum of nucleons
Coulomb=amphere*sec
None
N*s/m^2

25. magnification=
N is proportional to 1/?
Longitudinal
image/object
700nm -400nm

26. force experienced by moving charge traveling parallel or antiparallel to magnetic field
When ?=90 b/c sin90=1
None
Upright image
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

27. equation relating heat gained and temperature change
Insulator
Vo^2+2a(?x)
image/object
Q=mc?t

28. audible wave frequency
Centrioles
20 Hz to 20 -000 Hz
Beta=
Virtual upright

29. large moduli value
More rigid material
C=eoKA/D
Spring constant
Zero resistance

30. energy of moving proton
3a=Beta
1/2mv^2
Force and acceleration
F=- F

31. torque formula
T=rFsin?
E*r
Neutron is converted into a proton and an electron is emitted
W=mg=?Vg

32. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
1000 kg/m^3 or 1 g/cm^3
E=V/d
Conduction
U=QV

33. dynamic pressure
2
Req=R1+R2+R3 Veq=V1+V2+V3
P=1/f
(1/2)?v^2

34. electric potential energy
U=QV
0K -273
It jumps to higher energy level
1000 kg/m^3 or 1 g/cm^3

35. energy of a photon is dependent on...
Frequency
Y=(F/A)/(?L/L) stress over strain
V=kQ/r
Charge/length

36. polarized light
Coulomb=amphere*sec
F=nv/2L
Electric fields of all the light waves are oriented in the same direction
Virtual

37. magnetic force
Wave speed
F=qvBetasin?
Photon energy must be greater than work function of the material
V^2=vo^2+2a?x ?x=1/2(vo+v)t

38. specific gravity greater than one
F1/A1=F2/A2
?=vk/m=2p??
Substance is more dense then water
3a=Beta

39. momentum
Vo+at
New/old
P=m?v
N*s/m^2

40. conservation of energy law
Holds whenever we have a change in energy ?E=?KE+?PE=0
Minimum frequency of light that will cause emission of an electron
V=ED
Proton or neutron

41. electromotive force
F=q/e0
The shortest wavelength
Pressure to move - voltage when no charge is moving between 2 terminals
F=r/2

42. kirchhoff's rule -- travel from negative to positive
Emf is positive
Buoyant force equals blocks weight
Beta=
Resistor

43. force experience by stationary particle in magnetic field
None
It is halved
Light emitted due to heat
When velocity of the fluid exceeds critical velocity

44. equation for kinetic friction
K+U=constant
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Increase length increase resistance
Fk=

45. Bernoulli's equation
Moving charge
Emf is negative
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
N is proportional to 1/?

46. osmotic pressure formula
Negative
Hydrostatics
Bigger and beyond original object
MRT

47. what creates a magnetic field
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Moving charge
None
E=kQ/r^2

48. for photoelectric material to liberate an electron
Centrioles
Rate of doing work
Photon energy must be greater than work function of the material
X=(initial horizontal v)(time in air)

49. determine spring constant
E=kQ/r^2
F=xk=mg
Fluid resistance to flow
Beta=

50. units for viscosity
N*s/m^2
V/??
Vrms=Vmax/v2
Will never decrease capacitance