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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. angular frequency of spring ?
Substance is less dense then water
Negative
?=vk/m=2p??
?=m/v kg/m^3 g/ml g/cm^3

2. In what position does spring has its greatest speed
Internal resistance is zero voltage=emf
A=v^2/r
Photon energy must be greater than work function of the material
Equilibrium position

3. work function
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Energy required to free electron from given metal
Upright image
W=Fdcos?

4. capacitance equation in circuit
C=Q/V
Weighted average of the masses of the element
Mass number
?x=1/2(v+vo)t

5. work as product of pressure and volume change
Force and acceleration
1/2mv^2
?V=BetaV?T
F1/A1=F2/A2

6. electrolyte
Negative
Beta=
Solute whose solution is conductive
More malleable material

7. velocity for a wave
Angle of incidence=angle of reflection
Solute whose solution is conductive
Light travels from high n to lower n with an angle of incidence greater than the critical angle
V=???

8. temperature and resistors
Higher temperature increases resistance
V/??
W'=?E=?KE+?U
Splitting of atomic nuclei

9. charge of gamma particles
Mass
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Fluid resistance to flow
None

10. Newtons 1st law of motion
Body in motion remains in motion unless net force acts upon it
F=q/e0
B=(F/A)/(?V/V)
??=nv/4L

11. frequency of light given wavelength
3
A sin?=n?
100% of the object will be submerged but will not sink
F=c/?

12. frequency of spring is inversely proportional to...
None
W=Fdcos?
Mass
F=c/?

13. magnetic field of solenoid
Virtual
Electric fields of all the light waves are oriented in the same direction
Dispersion
B=

14. When is voltage constant across capacitors
Beta=
When in parallel
Low voltage to high voltage
F=E*A

15. total horizontal distance traveled by projectile
X=(initial horizontal v)(time in air)
P=i^2R=V^2/R=IV
When in parallel
Zero resistance

16. pressure
F=- kx
F=1/2(r)
F/A
Sin=v3/2 cos=1/2

17. 60
Sin=v3/2 cos=1/2
Fk=
Vsin?
Voltage

18. under content acceleration v^2=
Vo^2+2a(?x)
Fk=
Fnet=0 thus Fg=Fs mg=kx
Conduction

19. when an electron absorbs a photon
A sin?=n?
T=rFsin?
C=eoKA/D
It jumps to higher energy level

20. v2/2
Approx .7
E=1/2k(A^2)
C=Q/V
1000 kg/m^3 or 1 g/cm^3

21. electric field and magnetic field are...
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Hydrostatics
Energy of electrons
Perpendicular to each other

22. convex mirror
Coulomb=amphere*sec
Vo^2+2a(?x)
MRT
Image is always upright virtual and smaller

23. wave velocity=
???
Force and acceleration
Virtual upright
P=i^2r

24. relate velocities and displacement 2 ways
?x=1/2(v+vo)t
Splitting of atomic nuclei
EV
V^2=vo^2+2a?x ?x=1/2(vo+v)t

25. image created when converging (concave) mirror when object is placed beyond focal point
Photon energy must be greater than work function of the material
Real inverted image
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Energy of electrons

26. to find acceleration due to gravity
Bigger and beyond original object
Derive universal gravitation equation
W=qv
Number of protons in nucleus

27. dielectric material
Holds whenever we have a change in energy ?E=?KE+?PE=0
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Sin=0 cos=1
Will never decrease capacitance

28. sublimation
Approx .7
Negative
Beta=10Log(I/Io)
Solid to gas

29. 90
Vrms=Vmax/v2
F=nv/2L
Sin=1 cos=0
Fusion

30. plane mirrors create What type of image
A Calorie is a nutritional term equal to 1000 calories
Virtual
W'=?E=?KE+?U
Rate of doing work

31. parabolic mirror: object between c and f - image is...
Emf is negative
W=qv
Q=mc?t
Bigger and beyond original object

32. viscosity
?L=aL?T
When ?=90 b/c sin90=1
Fluid resistance to flow
W=mg=?Vg

33. What is an electron volt (eV)
1000 kg/m^3 or 1 g/cm^3
Q=mc?t
Energy gained by particle with charge of e when moved through one volt
2

34. As current flows through a resistor
Charge remains constant
Ceq=C1+C2+C3 Veq=V1=V2=V3
Vot+1/2at^2=(V0+v/2)t
A sin?=n?

35. charge on the plates of a capacitor
Q=CV
Current*voltage
E=1/2k(A^2)
Y=(F/A)/(?L/L) stress over strain

36. increasing emf has What effect on ?G
New/old
Work/time
Makes ?G more negative thus more spontaneous
Pascal (Pa) N/m^2

37. Formula for centripetal force
1/f=1/o+ 1/i
?=m/v kg/m^3 g/ml g/cm^3
F=mv^2/r
It is halved

38. ? of sound wave=
V/??
I=P/A
Beta=
F=- kx

39. period of spring
A sin?=n?
Fs=
2pvm/k
F=E*A

40. under what conditions will light undergo total internal reflection
Frequency
Light travels from high n to lower n with an angle of incidence greater than the critical angle
273K 0
(Vo+v)/2

41. atomic mass number represents
Diopters
Photon energy must be greater than work function of the material
?V=BetaV?T
Protons+neutrons

42. a lightbulb in a circuit is a
Resistor
Vbulk modulus
More malleable material
Pressure to move - voltage when no charge is moving between 2 terminals

43. torque is given by
Vsin?
T=rFsin?
Real inverted
T=rF where F is proportional to mass and r is distance from pivot

44. 'real' side of a lens
Force a molecule of liquid feels toward molecules of some other substance
Side opposite From which light originates
V=kQ/r
Energy of electrons

45. work as it relates to constant force
W=Fdcos?
100% of the object will be submerged but will not sink
Sin=0 cos=-1
F=mv^2/r

46. what would a specific gravity of 1 indicate
N2>n1
100% of the object will be submerged but will not sink
When in parallel
Light travels from high n to lower n with an angle of incidence greater than the critical angle

47. What does atoms atomic weight represent
When velocity of the fluid exceeds critical velocity
Hydrostatics
Rate of doing work
Weighted average of the masses of the element

48. meaning of Bernouili's equation
As speed of fluid increases pressure and potential energy decrease
Gas to solid
Dispersion
W'=?E=?KE+?U

49. 180
Q=CV
Sin=0 cos=-1
Virtual
Force and acceleration

50. material with low resistance
?=4L/n
Wave speed
Conductor
2 times the focal distance