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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. under content acceleration v^2=
U=1/2QV=1/2CV^2=1/2Q^2/C
Internal resistance is zero voltage=emf
Fnet=0 thus Fg=Fs mg=kx
Vo^2+2a(?x)

2. sound level
Emf is positive
Beta=10Log(I/Io)
Higher temperature increases resistance
Convection

3. type of image ALWAYS created by diverging (convex) mirror
image/object
Virtual upright smaller
Longitudinal
Angle of incidence=angle of reflection

4. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
Approx .7
Fs=
Points away from + and toward -

5. 60
Slower light will travel
Sin=v3/2 cos=1/2
F=nv/2L
Side opposite From which light originates

6. Find electric potential given electric field
E*r
1/f=1/o+ 1/i
Points away from + and toward -
Protons+neutrons

7. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Pascal (Pa) N/m^2
Coulomb=amphere*sec
U=q?v
Conduction

8. relationship between linear thermal expansion and volumetric thermal expansion
Gamma decay
Vcos?
Bigger and beyond original object
3a=Beta

9. type of heat transfer involving the physical motion of heated material
Emf is positive
Neutron is converted into a proton and an electron is emitted
Convection
Moving charge

10. object placed beyond focal point in converging lens create What type of image
Real inverted
Negative
V/??
No image is formed

11. magnetic field is created by loop wire - What is magnetic field at center of loop
Incident ray
F=q/e0
Beta=
Bigger and beyond original object

12. units for viscosity
Degree=p/180 radian
N*s/m^2
Fluid resistance to flow
More malleable material

13. 30
2
F=Gm1m2/r^2
Fluid resistance to flow
Sin=1/2 cos=v3/2

14. small moduli value
Body in motion remains in motion unless net force acts upon it
More malleable material
Force applied parallel to objects surface
None

15. plane mirrors create What type of image
Holds whenever we have a change in energy ?E=?KE+?PE=0
Virtual
V=?A
Sin=v2/2 cos=v2/2

16. length of resistor
Increase length increase resistance
Vo+at
Is equal to gravitational force
Points away from + and toward -

17. only radioactive decay that conserves the nucleus charge
Gamma decay
None
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
?=2L/n

18. a virtual image has what kind of image distance
Negative
Vbulk modulus
Energy of electrons
T=rF where F is proportional to mass and r is distance from pivot

19. charge of gamma particles
Vcos?
Solute whose solution is conductive
F=mv^2/r
None

20. shear
F/A
Virtual upright smaller
?V=BetaV?T
Force applied parallel to objects surface

21. dynamic pressure
Is equal to gravitational force
(1/2)?v^2
R=pL/A
Gas to solid

22. meaning of Bernouili's equation
As speed of fluid increases pressure and potential energy decrease
Gamma decay
T=rFsin?
F=xk=mg

23. max frequency of X- ray depends ONLY on...
Sin=1 cos=0
Energy of electrons
Buoyant force equals blocks weight
image/object

24. pressure
T=1/f
Constant for closed system independent of changes in area
A=v^2/r
F/A

25. sublimation
Solid to gas
Amount of energy required for phase change from solid to liquid
1000 kg/m^3 or 1 g/cm^3
J=Force*Time=mv - mvo=?p

26. s
Real image
Charge/area
Proton or neutron
Sin=1/2 cos=v3/2

27. As current flows through a resistor
700nm -400nm
Charge/area
Real image
Charge remains constant

28. work as it relates to constant force
V=???
New/old
P=m?v
W=Fdcos?

29. energy stored in capacitor
U=1/2QV=1/2CV^2=1/2Q^2/C
M1v1=m2v2
Solid to gas
P=IA

30. speed of sound in proportional to...
Irms=Imax/v2
Vbulk modulus
Beta=10Log(I/Io)
U=QV

31. electric flux
P=IV
F=E*A
Incident light is used to free electrons from a metal
Number of protons in nucleus

32. Log(1000)=
W'=?E=?KE+?U
Increase length increase resistance
A Calorie is a nutritional term equal to 1000 calories
3

33. electromotive force
Moving charge
Image is always upright virtual and smaller
???
Pressure to move - voltage when no charge is moving between 2 terminals

34. for photoelectric material to liberate an electron
2pvL/g
1/f=1/o+ 1/i
Conductor
Photon energy must be greater than work function of the material

35. beat frequencies for two frequencies differing by 4 Hz
4 Hz
Perpendicular to each other
0K -273
C=eoKA/D

36. volumetric rate of flow (property)
Nsin?incident=nsin?refraction
Vsin?
I=?q/?t
Constant for closed system independent of changes in area

37. work in electromagnetic field
Intensity
Sin=v2/2 cos=v2/2
W=qv
Spreading out of light as it passes through a narrow opening

38. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Weighted average of the masses of the element
E=Pt
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

39. under constant acceleration - v=
273K 0
Vo+at
F=- kx
?=m/v kg/m^3 g/ml g/cm^3

40. find energy in circuit
Radiation
E=Pt
F=E*A
More malleable material

41. under what conditions will light undergo total internal reflection
Emf is negative
1/f=1/o+ 1/i
Light travels from high n to lower n with an angle of incidence greater than the critical angle
When ?=90 b/c sin90=1

42. What is displacement equation
I=?q/?t
Conduction
?x=1/2(v+vo)t
700nm -400nm

43. conservation of energy law
V=???
Emf is negative
Pressure to move - voltage when no charge is moving between 2 terminals
Holds whenever we have a change in energy ?E=?KE+?PE=0

44. kirchhoff's rule -- travel from negative to positive
Emf is positive
Beta=10Log(I/Io)
It jumps to higher energy level
Neutron is converted into a proton and an electron is emitted

45. v2/2
Protons+neutrons
Substance is more dense then water
None
Approx .7

46. freezing point of H2O in K and C
???
Vbulk modulus
More malleable material
273K 0

47. volume thermal expansion of a solid
?V=BetaV?T
Charge remains constant
F=ma
E=V/d

48. force due to electric field on single charge
F=ma
700nm -400nm
2pvm/k
E=neE n is excess charge

49. mass defect
Moving charge
Difference between the mass of nucleus and the sum of nucleons
Ampere (1C/s)
Equilibrium position

50. tone with shortest period has
Derive universal gravitation equation
The shortest wavelength
Image is always upright virtual and smaller
Is equal to gravitational force