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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. incandescence
Sin=1 cos=0
Force applied parallel to objects surface
(1/2)?v^2
Light emitted due to heat

2. atomic mass number represents
Q=mL
Convection
Conduction
Protons+neutrons

3. body in translational equilibrium
Negative
No net force acting on it
EV
Side opposite From which light originates

4. energy of photon
Voltage
Solute whose solution is conductive
Centrioles
E=???=hc/?

5. light ray that strikes a surface
N is proportional to 1/?
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Incident ray
Minimum frequency of light that will cause emission of an electron

6. electrolyte
Q=mc?t
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Solute whose solution is conductive
N is proportional to 1/?

7. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Mass number
A sin?=n?
Conduction
Work/time

8. voltage of AC
Force applied parallel to objects surface
Vrms=Vmax/v2
When ?=90 b/c sin90=1
Work/time

9. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
Y=(F/A)/(?L/L) stress over strain
Mass
Image is always upright virtual and smaller

10. magnification=
Approx .7
3a=Beta
Pressure to move - voltage when no charge is moving between 2 terminals
image/object

11. What is heat of fusion
Weighted average of the masses of the element
Equilibrium position
Amount of energy required for phase change from solid to liquid
Image is always upright virtual and smaller

12. meaning of Bernouili's equation
More rigid material
As speed of fluid increases pressure and potential energy decrease
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Voltage

13. adhesion
Derive universal gravitation equation
More rigid material
Force a molecule of liquid feels toward molecules of some other substance
Kg*m/s^2

14. charge on the plates of a capacitor
Q=CV
T=rFsin?
Cohesion
Real image

15. (+) magnification signifies
Vot+1/2at^2=(V0+v/2)t
Dispersion
I=?q/?t
Upright image

16. across capacitor what remains constant
Voltage
N is proportional to 1/?
?=m/v kg/m^3 g/ml g/cm^3
Surface

17. deposition
Insulator
Vbulk modulus
(mass defect)(speed of light)^2
Gas to solid

18. force experience by stationary particle in magnetic field
None
Fnet=0 thus Fg=Fs mg=kx
Nsin?incident=nsin?refraction
Protons+neutrons

19. work done by non conservative force

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20. reflection law
E=neE n is excess charge
Charge/length
Angle of incidence=angle of reflection
4 Hz

21. equation for v between two parallel plates
Real image
V=ED
F=c/?
Solid to gas

22. velocity for a wave
image/object
U=1/2QV=1/2CV^2=1/2Q^2/C
V=???
20 Hz to 20 -000 Hz

23. amplitude of spring is proportional to...
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Diopters
N1>n2
Force and acceleration

24. electric field of parallel plate capacitor
?=m/v kg/m^3 g/ml g/cm^3
E=V/d
Vrms=Vmax/v2
Degree=p/180 radian

25. centripetal acceleration
A=v^2/r
Energy required to free electron from given metal
Vrms=Vmax/v2
T=rF where F is proportional to mass and r is distance from pivot

26. magnetic field force on current carrying wire
Charge/area
Charge/length
F=I(L*B)
More rigid material

27. continuity equation*
N is proportional to 1/?
Emf is positive
V=???
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

28. energy of moving proton
Body in motion remains in motion unless net force acts upon it
1/2mv^2
Minimum frequency of light that will cause emission of an electron
?L=aL?T

29. What is displacement equation
It jumps to higher energy level
N is proportional to 1/?
Intensity
?x=1/2(v+vo)t

30. work function
Difference between the absolute and atm pressure Pg=P- Patm
Coulomb=amphere*sec
0K -273
Energy required to free electron from given metal

31. 30
Sin=1/2 cos=v3/2
F=nv/2L
A Calorie is a nutritional term equal to 1000 calories
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

32. Formula for centripetal force
F=mv^2/r
Splitting of atomic nuclei
Increases
F=xk=mg

33. speed of light in a vacuum (c) =
2pr
?=m/v kg/m^3 g/ml g/cm^3
???
V=?A

34. find factor by which something has been changed
Proton or neutron
New/old
?L=aL?T
Virtual upright

35. v2/2
Photon energy must be greater than work function of the material
Mass
F=mv^2/r
Approx .7

36. tone with shortest period has
It jumps to higher energy level
Electric fields of all the light waves are oriented in the same direction
The shortest wavelength
Light emitted due to heat

37. equation for kinetic friction
Vcos?
Beta=
Fk=
Pressure to move - voltage when no charge is moving between 2 terminals

38. lever arm is halved what happens to torque
Number of protons in nucleus
V=kQ/r
1/2mv^2
It is halved

39. power of sound wave
A Calorie is a nutritional term equal to 1000 calories
P=IA
Nsin?incident=nsin?refraction
F=c/?

40. focal for spherical mirrors
2pvm/k
F=1/2(r)
Ceq=C1+C2+C3 Veq=V1=V2=V3
Neutron is converted into a proton and an electron is emitted

41. 45
P=i^2r
N1>n2
Sin=v2/2 cos=v2/2
V^2=vo^2+2a?x ?x=1/2(vo+v)t

42. a lightbulb in a circuit is a
No net force acting on it
V=kQ/r
W=qv
Resistor

43. boiling point of H2O in K and C
373K 100
Points away from + and toward -
V=ED
Q=CV

44. period (T) and frequency (f) of a tone are related by
Makes ?G more negative thus more spontaneous
None
T=1/f
F=nv/2L

45. volumetric rate of flow (property)
Fnet=0 thus Fg=Fs mg=kx
Constant for closed system independent of changes in area
Irms=Imax/v2
Vo^2+2a(?x)

46. capacitors in parallel
Ceq=C1+C2+C3 Veq=V1=V2=V3
J=Force*Time=mv - mvo=?p
Points away from + and toward -
?=2L/n

47. plane mirrors create What type of image
(1/2)?v^2
Virtual
Weighted average of the masses of the element
Image is always upright virtual and smaller

48. stays constant when light travels through boundary
Centrioles
Internal resistance is zero voltage=emf
Frequency
Current*voltage

49. planet orbiting a star - centripetal force
Fluid resistance to flow
?x=1/2(v+vo)t
Is equal to gravitational force
P=i^2r

50. electric field maximum of insulating sphere
E=1/2k(A^2)
Ampere (1C/s)
Surface
Longitudinal