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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. find voltage (original)
More malleable material
Low voltage to high voltage
Neutron is converted into a proton and an electron is emitted
V=kq/r

2. beat frequencies for two frequencies differing by 4 Hz
Fs=
4 Hz
Counterclockwise is + clockwise is -
E=1/2k(A^2)

3. diffraction
Spreading out of light as it passes through a narrow opening
Beta=
New/old
Vcos?

4. to find acceleration due to gravity
0K -273
E=Pt
Derive universal gravitation equation
?V=BetaV?T

5. equation relating heat gained and temperature change
Q=mc?t
Holds whenever we have a change in energy ?E=?KE+?PE=0
Upright image
Virtual upright

6. under constant acceleration - v=
Vo+at
Insulator
Photon energy must be greater than work function of the material
Hydrostatics

7. nucleon
Minimum frequency of light that will cause emission of an electron
Proton or neutron
Ceq=C1+C2+C3 Veq=V1=V2=V3
Incident light is used to free electrons from a metal

8. unit of current
F/A
Vo+at
Ampere (1C/s)
Insulator

9. formula for heat gained or lost during phase change
Q=mL
V=kQ/r
Fs=
Sin=1 cos=0

10. equation for kinetic friction
Fk=
None
N=c/v
Derive universal gravitation equation

11. ? of sound wave=
Energy gained by particle with charge of e when moved through one volt
U=QV
W=Fdcos?
V/??

12. power is defined as
Fusion
Rate of doing work
Irms=Imax/v2
Minimum frequency of light that will cause emission of an electron

13. fission
E=V/d
Virtual upright smaller
Splitting of atomic nuclei
None

14. Capacitors in series
Rate of doing work
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Gas to solid
Sin=v3/2 cos=1/2

15. 180
Virtual upright smaller
V/??
Frequency
Sin=0 cos=-1

16. light ray that strikes a surface
Incident ray
Y=(F/A)/(?L/L) stress over strain
Intensity
Irms=Imax/v2

17. total horizontal distance traveled by projectile
X=(initial horizontal v)(time in air)
Intensity
Force and acceleration
F=qvBetasin?

18. units for power of a lens
Virtual
A Calorie is a nutritional term equal to 1000 calories
Diopters
Sin=v3/2 cos=1/2

19. Electric Potential equation
Q=mc?t
?=2L/n
V=kQ/r
Substance is less dense then water

20. atoms atomic number represents
Beta=
MRT
Number of protons in nucleus
The liquid itself not the object

21. thermal expansion of a solid
Real inverted image
?=m/v kg/m^3 g/ml g/cm^3
?L=aL?T
Derive universal gravitation equation

22. Ohm's Law
273K 0
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
F=xk=mg
V=IR

23. gauge pressure in relation to the others
Difference between the absolute and atm pressure Pg=P- Patm
P=i^2r
Gamma decay
As speed of fluid increases pressure and potential energy decrease

24. under constant acceleration V(average)=
Force a molecule of liquid feels toward molecules of some other substance
Resistor
(Vo+v)/2
3

25. boiling point of H2O in K and C
373K 100
F/A
???
C=Q/V

26. material with very high resistance
J=Force*Time=mv - mvo=?p
Insulator
Side opposite From which light originates
Req=R1+R2+R3 Veq=V1+V2+V3

27. larger the index of refraction..
R=pL/A
Energy gained by particle with charge of e when moved through one volt
Slower light will travel
V/??

28. negative charge moves spontaneously from
V^2=vo^2+2a?x ?x=1/2(vo+v)t
It jumps to higher energy level
Low voltage to high voltage
Force and acceleration

29. parabolic mirror: image at focal point
Sin=1/2 cos=v3/2
???
C=eoKA/D
No image is formed

30. a lightbulb in a circuit is a
Difference between the absolute and atm pressure Pg=P- Patm
The shortest wavelength
As speed of fluid increases pressure and potential energy decrease
Resistor

31. volume thermal expansion of a solid
No image is formed
2pvm/k
Dispersion
?V=BetaV?T

32. -Beta- decay
Neutron is converted into a proton and an electron is emitted
Frequency
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Hydrostatics

33. Log(100)=
Virtual upright
Solute whose solution is conductive
???
2

34. electrical power
Resistor
Radiation
N=c/v
P=IV

35. small moduli value
V=kq/r
Dispersion
More malleable material
Yield strength

36. type of image ALWAYS created by diverging (convex) mirror
F=- F
E=neE n is excess charge
Virtual upright smaller
V^2=vo^2+2a?x ?x=1/2(vo+v)t

37. incandescence
V=ED
MRT
Light emitted due to heat
3

38. freezing point of H2O in K and C
273K 0
Number of protons
T=1/f
Beta=

39. pressure
F/A
Splitting of atomic nuclei
Fk=
Inverted image

40. splitting of white light in a prim is an example of...
Degree=p/180 radian
Real inverted
Dispersion
Buoyant force equals blocks weight

41. What is an electron volt (eV)
Slower light will travel
Negative
Energy gained by particle with charge of e when moved through one volt
F=q/e0

42. When is torque maximum
Coulomb=amphere*sec
Resistor
When ?=90 b/c sin90=1
?=vk/m=2p??

43. dynamic pressure
(1/2)?v^2
U=q?v
Beta=
Weighted average of the masses of the element

44. reflection law
Angle of incidence=angle of reflection
Cohesion
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Ampere (1C/s)

45. viscosity
Fluid resistance to flow
Bigger and beyond original object
Decrease in pressure that fluid exerts on the walls of the container
Charge/length

46. when unlike charges move away from each other - U of the system
P=m?v
Moving charge
T=rF where F is proportional to mass and r is distance from pivot
Increases

47. meaning of Bernouili's equation
As speed of fluid increases pressure and potential energy decrease
Increase length increase resistance
P=m?v
C=Q/V

48. visible light wavelength
700nm -400nm
Frequency
Inverted image
100% of the object will be submerged but will not sink

49. speed of sound in proportional to...
Vbulk modulus
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Farad 1 F= 1 c/v
E=???=hc/?

50. speed of the spring
V=?A
M1v1=m2v2
E=kQ/r^2
Vbulk modulus