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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
It is halved
image/object
P=1/f
Frequency

2. focal length
MRT
???
1/f=1/o+ 1/i
700nm -400nm

3. audible wave frequency
New/old
F=1/2(r)
?=m/v kg/m^3 g/ml g/cm^3
20 Hz to 20 -000 Hz

4. Log(100)=
2
F=E*A
Spring constant
W=qv

5. power of sound wave
Mass number
Light emitted due to heat
P=IA
Spreading out of light as it passes through a narrow opening

6. vertical velocity of projectile
Irms=Imax/v2
Image is always upright virtual and smaller
Vsin?
Coulomb=amphere*sec

7. equation for kinetic friction
Vsin?
Fk=
Buoyant force equals blocks weight
None

8. 0
F=Gm1m2/r^2
Incident ray
Sin=0 cos=1
Wave speed

9. gravitational force formula
V/??
F=Gm1m2/r^2
Energy of electrons
N=c/v

10. point of shape change beyond which a material can go back to normal
Yield strength
Substance is less dense then water
W=Fdcos?
F=1/2(r)

11. magnitude of magnetic field for current carrying wire
Conductor
Beta=
Derive universal gravitation equation
Q=CV

12. light ray that strikes a surface
Incident ray
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Gamma decay
More flow less resistance

13. study of fluids at rest
F1/A1=F2/A2
???
Beta=
Hydrostatics

14. Newtons 3rd law of motion
Pascal (Pa) N/m^2
Sin=v2/2 cos=v2/2
F=nv/2L
F=- F

15. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
V=?A
MRT
Proton or neutron

16. magnetic field force on current carrying wire
Frequency
2pr
W'=?E=?KE+?U
F=I(L*B)

17. Gauss's Law
More flow less resistance
F=q/e0
Amount of energy required for phase change from solid to liquid
E*r

18. total energy of spring system
E=1/2k(A^2)
WATTS
It is halved
Number of protons

19. all harmonics have the same
1000 kg/m^3 or 1 g/cm^3
Wave speed
Energy required to free electron from given metal
Real inverted

20. when unlike charges move away from each other - U of the system
Increases
2 times the focal distance
F=nv/2L
Dispersion

21. length of resistor
Increase length increase resistance
Virtual upright
Sin=v2/2 cos=v2/2
?=4L/n

22. 'real' side of a lens
Internal resistance is zero voltage=emf
Kg*m/s^2
Side opposite From which light originates
Sin=1/2 cos=v3/2

23. relationship between linear thermal expansion and volumetric thermal expansion
Low voltage to high voltage
Real image
3a=Beta
Is equal to gravitational force

24. conservation of energy law
Increase length increase resistance
X=(initial horizontal v)(time in air)
Holds whenever we have a change in energy ?E=?KE+?PE=0
None

25. find factor by which something has been changed
New/old
F=ma
E=neE n is excess charge
Vo^2+2a(?x)

26. period of spring
2pvm/k
Ampere (1C/s)
Beta=
1000 kg/m^3 or 1 g/cm^3

27. object placed inside focal point in converging lens create What type of image
Virtual upright
Converted to extra kinetic energy of the emitted electron
F=E*A
Beta=10Log(I/Io)

28. energy of moving proton
Sin=v2/2 cos=v2/2
Rate of doing work
1/2mv^2
T=rF where F is proportional to mass and r is distance from pivot

29. frequency of spring is proportional to...
Sin=v3/2 cos=1/2
Fnet=0 thus Fg=Fs mg=kx
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Spring constant

30. period (T) and frequency (f) of a tone are related by
Charge remains constant
Approx .7
??=nv/4L
T=1/f

31. electromotive force
Q=mL
Charge remains constant
P=m?v
Pressure to move - voltage when no charge is moving between 2 terminals

32. Newtons 2nd law of motion
Sin=1 cos=0
F=ma
Sin=v2/2 cos=v2/2
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

33. across capacitor what remains constant
Voltage
Upright image
No image is formed
U=1/2QV=1/2CV^2=1/2Q^2/C

34. relate charge and current
Is equal to gravitational force
Coulomb=amphere*sec
2 times the focal distance
Decrease in pressure that fluid exerts on the walls of the container

35. fission
Splitting of atomic nuclei
P=IV
100% of the object will be submerged but will not sink
N is proportional to 1/?

36. magnitude of current
Approx .7
I=?q/?t
Internal resistance is zero voltage=emf
Substance is less dense then water

37. shear
2pvm/k
Force applied parallel to objects surface
U=1/2QV=1/2CV^2=1/2Q^2/C
Force a molecule of liquid feels toward the other molecules of the liquid

38. viscosity
2pvm/k
?=m/v kg/m^3 g/ml g/cm^3
Dispersion
Fluid resistance to flow

39. energy of photon
?=4L/n
T=rF where F is proportional to mass and r is distance from pivot
Virtual upright smaller
E=???=hc/?

40. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
P=IA
E=???=hc/?
F=c/?

41. beat frequencies for two frequencies differing by 4 Hz
Virtual upright
4 Hz
F=E*A
Fs=

42. a virtual image has what kind of image distance
Incident ray
Force and acceleration
Spring constant
Negative

43. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Dispersion
None
Q=mL
Ceq=C1+C2+C3 Veq=V1=V2=V3

44. relate velocities and displacement 2 ways
P=m?v
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Sin=1 cos=0
W=qv

45. units for viscosity
Emf is positive
Force a molecule of liquid feels toward molecules of some other substance
N*s/m^2
Image is always upright virtual and smaller

46. parabolic mirror: image at focal point
When ?=90 b/c sin90=1
Increases
No image is formed
F=nv/2L

47. energy stored in capacitor
F=nv/2L
Sin=0 cos=1
None
U=1/2QV=1/2CV^2=1/2Q^2/C

48. suppose a block is floating in H2O - What does this mean
W=mg=?Vg
Buoyant force equals blocks weight
E=neE n is excess charge
?=vk/m=2p??

49. max frequency of X- ray depends ONLY on...
F=E*A
E=kQ/r^2
Beta=10Log(I/Io)
Energy of electrons

50. polarized light
Electric fields of all the light waves are oriented in the same direction
It jumps to higher energy level
P=i^2r
Internal resistance is zero voltage=emf