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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. When is voltage constant across capacitors
Upright image
It is halved
E=neE n is excess charge
When in parallel

2. difference between Calorie and calorie
Image is always upright virtual and smaller
A Calorie is a nutritional term equal to 1000 calories
U=1/2QV=1/2CV^2=1/2Q^2/C
Spreading out of light as it passes through a narrow opening

3. energy of moving proton
Slower light will travel
1/2mv^2
V=?A
P=IA

4. magnetic field is created by loop wire - What is magnetic field at center of loop
Conductor
P=i^2R=V^2/R=IV
Beta=
P=IV

5. electrolyte
Solute whose solution is conductive
I=P/A
Pressure to move - voltage when no charge is moving between 2 terminals
E=Pt

6. units for newtons
Solid to gas
F1/A1=F2/A2
Sin=v3/2 cos=1/2
Kg*m/s^2

7. gravitational force formula
?=vk/m=2p??
F=xk=mg
F=Gm1m2/r^2
B=(F/A)/(?V/V)

8. z in isotopic notation
R=pL/A
E=1/2k(A^2)
Number of protons
Difference between the mass of nucleus and the sum of nucleons

9. in calculating torque - which direction is + and which is
N=c/v
Difference between the absolute and atm pressure Pg=P- Patm
C=e(A/d)
Counterclockwise is + clockwise is -

10. 90
Sin=1 cos=0
Increases
MRT
(1/2)?v^2

11. diffraction
Vbulk modulus
Spreading out of light as it passes through a narrow opening
Charge remains constant
Yield strength

12. shear
Real inverted
A=v^2/r
B=(F/A)/(?V/V)
Force applied parallel to objects surface

13. when spring is at rest
The liquid itself not the object
Sin=0 cos=1
A Calorie is a nutritional term equal to 1000 calories
Fnet=0 thus Fg=Fs mg=kx

14. centripetal acceleration
Force applied parallel to objects surface
New/old
A=v^2/r
Fnet=0 thus Fg=Fs mg=kx

15. electric work
WATTS
U=q?v
F=mv^2/r
E=V/d

16. capacitance of simple parallel plate (not according to Ohms)
20 Hz to 20 -000 Hz
C=e(A/d)
U=1/2QV=1/2CV^2=1/2Q^2/C
Fusion

17. ? of sound wave=
Solid to gas
It jumps to higher energy level
V/??
No image is formed

18. open pipe wavelength
?=2L/n
The liquid itself not the object
Force and acceleration
2

19. adhesion
None
Force a molecule of liquid feels toward molecules of some other substance
V=IR
Ampere (1C/s)

20. magnetic field force on current carrying wire
Vo+at
Difference between the mass of nucleus and the sum of nucleons
F=I(L*B)
Negative

21. formula for heat gained or lost during phase change
Number of protons in nucleus
Q=mL
P=IA
Approx .7

22. speed of the spring
Ampere (1C/s)
V=?A
None
Spreading out of light as it passes through a narrow opening

23. v2/2
Sin=0 cos=1
Side opposite From which light originates
Approx .7
Bigger and beyond original object

24. under constant acceleration V(average)=
(Vo+v)/2
Sin=0 cos=-1
(mass defect)(speed of light)^2
(1/2)?v^2

25. only radioactive decay that conserves the nucleus charge
U=1/2QV=1/2CV^2=1/2Q^2/C
Conduction
Gamma decay
Conductor

26. relate velocities and displacement 2 ways
P=1/f
Sin=0 cos=-1
F=qvBetasin?
V^2=vo^2+2a?x ?x=1/2(vo+v)t

27. torque is given by
T=rF where F is proportional to mass and r is distance from pivot
Zero resistance
Body in motion remains in motion unless net force acts upon it
Surface

28. direction of electric field created by charge
T=rFsin?
100% of the object will be submerged but will not sink
Points away from + and toward -
Inverted image

29. Newtons 2nd law of motion
F1/A1=F2/A2
I=P/A
Energy of electrons
F=ma

30. continuity equation*
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
???
?=2L/n
Fnet=0 thus Fg=Fs mg=kx

31. work as it relates to constant force
F=mv^2/r
?L=aL?T
Decrease in pressure that fluid exerts on the walls of the container
W=Fdcos?

32. period (T) and frequency (f) of a tone are related by
Diopters
Vbulk modulus
E=neE n is excess charge
T=1/f

33. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Mass
Conduction
E=1/2k(A^2)
Vrms=Vmax/v2

34. atomic mass number represents
F=Gm1m2/r^2
Protons+neutrons
Perpendicular to each other
F=1/2(r)

35. visible light wavelength
Work/time
Radiation
Sin=0 cos=-1
700nm -400nm

36. point of shape change beyond which a material can go back to normal
V=???
Energy gained by particle with charge of e when moved through one volt
Yield strength
Farad 1 F= 1 c/v

37. dynamic pressure
(1/2)?v^2
?L=aL?T
?V=BetaV?T
Current*voltage

38. magnification=
E=neE n is excess charge
A Calorie is a nutritional term equal to 1000 calories
image/object
Upright image

39. -Beta- decay
Conductor
T=rF where F is proportional to mass and r is distance from pivot
Force applied parallel to objects surface
Neutron is converted into a proton and an electron is emitted

40. frequency of light given wavelength
F=c/?
U=(1/2)kx^2
F=- F
C=eoKA/D

41. splitting of white light in a prim is an example of...
U=QV
Dispersion
Sin=0 cos=1
Rate of doing work

42. material with moderate resistance
???
J=Force*Time=mv - mvo=?p
Q=CV
Resistor

43. current of AC
Sin=v2/2 cos=v2/2
W=mg=?Vg
Irms=Imax/v2
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

44. total horizontal distance traveled by projectile
A Calorie is a nutritional term equal to 1000 calories
Force a molecule of liquid feels toward the other molecules of the liquid
X=(initial horizontal v)(time in air)
F=r/2

45. work done by non conservative force

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46. total energy of spring system
E=???=hc/?
More malleable material
Image is always upright virtual and smaller
E=1/2k(A^2)

47. equation for capacitance with dielectric
Internal resistance is zero voltage=emf
Virtual upright
Incident ray
C=eoKA/D

48. temperature and resistors
Higher temperature increases resistance
No image is formed
Beta=10Log(I/Io)
N*s/m^2

49. type of heat transfer involving transfer of energy by electromagnetic waves
Radiation
P=IA
C=Q/V
20 Hz to 20 -000 Hz

50. frequency of spring is inversely proportional to...
Number of protons
Sin=1/2 cos=v3/2
Vrms=Vmax/v2
Mass