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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. pressure
Force a molecule of liquid feels toward molecules of some other substance
Vot+1/2at^2=(V0+v/2)t
C=Q/V
F/A

2. osmotic pressure formula
V=kq/r
Derive universal gravitation equation
2pvL/g
MRT

3. convex mirror
Image is always upright virtual and smaller
Minimum frequency of light that will cause emission of an electron
Force and acceleration
P=1/f

4. body in translational equilibrium
Solid to gas
No net force acting on it
Q=mL
Convection

5. What is an electron volt (eV)
F=qvBetasin?
Req=R1+R2+R3 Veq=V1+V2+V3
Energy gained by particle with charge of e when moved through one volt
Mass number

6. buoyant force is due to...
P=IV
The liquid itself not the object
Substance is less dense then water
N1>n2

7. a virtual image has what kind of image distance
Sin=0 cos=1
Wave speed
Negative
Internal resistance is zero voltage=emf

8. What does atoms atomic weight represent
W=qv
Weighted average of the masses of the element
None
Force applied parallel to objects surface

9. conservation of energy law
V=kQ/r
Diopters
Surface
Holds whenever we have a change in energy ?E=?KE+?PE=0

10. period (T) and frequency (f) of a tone are related by
F=nv/2L
F=- kx
T=1/f
V^2=vo^2+2a?x ?x=1/2(vo+v)t

11. equation for capacitance with dielectric
2 times the focal distance
C=eoKA/D
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Is equal to gravitational force

12. Log(100)=
2 times the focal distance
Virtual upright
2
?=m/v kg/m^3 g/ml g/cm^3

13. calculate binding energy
Radiation
(mass defect)(speed of light)^2
F=xk=mg
B=(F/A)/(?V/V)

14. capacitance equation in circuit
0K -273
Kg*m/s^2
F=E*A
C=Q/V

15. total horizontal distance traveled by projectile
F=1/2(r)
X=(initial horizontal v)(time in air)
EV
Radiation

16. magnetic field force on current carrying wire
MRT
Weighted average of the masses of the element
F=I(L*B)
Slower light will travel

17. a lightbulb in a circuit is a
P=i^2r
Gas to solid
F/A
Resistor

18. -Beta- decay
Neutron is converted into a proton and an electron is emitted
Vrms=Vmax/v2
Increases
A sin?=n?

19. find power in circuit
Converted to extra kinetic energy of the emitted electron
Conductor
Current*voltage
P=1/f

20. closed pipe frequency
??=nv/4L
0K -273
Solid to gas
Charge/length

21. in calculating torque - which direction is + and which is
Sin=0 cos=1
Vcos?
F=xk=mg
Counterclockwise is + clockwise is -

22. difference between Calorie and calorie
2pr
Sin=0 cos=-1
A Calorie is a nutritional term equal to 1000 calories
3a=Beta

23. units for viscosity
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
N*s/m^2
Q=mL
T=rF where F is proportional to mass and r is distance from pivot

24. ? of sound wave=
Sin=v3/2 cos=1/2
Spreading out of light as it passes through a narrow opening
V/??
Fs=

25. work in electromagnetic field
F=nv/2L
W=qv
Increases
Higher temperature increases resistance

26. dynamic pressure
(1/2)?v^2
U=q?v
Amount of energy required for phase change from solid to liquid
Proton or neutron

27. s
??=nv/4L
V=IR
Charge/area
Weighted average of the masses of the element

28. calculate lens power
P=1/f
It jumps to higher energy level
Virtual upright
Conduction

29. magnetic field of solenoid
U=q?v
Equilibrium position
B=
Farad 1 F= 1 c/v

30. deposition
Force a molecule of liquid feels toward the other molecules of the liquid
2 times the focal distance
Gas to solid
W=mg=?Vg

31. sublimation
Solid to gas
Constant for closed system independent of changes in area
Slower light will travel
Zero resistance

32. tone with shortest period has
Gamma decay
Zero resistance
The liquid itself not the object
The shortest wavelength

33. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Sin=v2/2 cos=v2/2
2pvL/g
Conduction
Voltage

34. when unlike charges move away from each other - U of the system
Hydrostatics
Mass
Increases
The liquid itself not the object

35. kirchhoff's rule -- travel from positive to negative
Rate of doing work
Mass
V/??
Emf is negative

36. Capacitors in series
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
E=V/d
?=2L/n
Charge/length

37. Newtons 2nd law of motion
Resistor
Force a molecule of liquid feels toward the other molecules of the liquid
F=ma
Equilibrium position

38. parabolic mirror: object between c and f - image is...
Bigger and beyond original object
Vo^2+2a(?x)
Side opposite From which light originates
2

39. what would a specific gravity of 1 indicate
F=nv/2L
Cohesion
100% of the object will be submerged but will not sink
EV

40. Formula for centripetal force
F=mv^2/r
N1>n2
3a=Beta
Increases

41. current of AC
Proton or neutron
Real inverted image
Irms=Imax/v2
Real inverted

42. unit of current
Substance is less dense then water
Ampere (1C/s)
Sin=0 cos=1
Higher temperature increases resistance

43. wave velocity=
???
V=kQ/r
Increase length increase resistance
A Calorie is a nutritional term equal to 1000 calories

44. The bigger the cross - section of a resistor..
More flow less resistance
Beta=
T=rF where F is proportional to mass and r is distance from pivot
F=ma

45. light bends away from normal when
2 times the focal distance
Longitudinal
Beta=10Log(I/Io)
N1>n2

46. relationship between linear thermal expansion and volumetric thermal expansion
The shortest wavelength
3a=Beta
(1/2)?v^2
K+U=constant

47. beat frequencies for two frequencies differing by 4 Hz
4 Hz
Vsin?
Q=mc?t
Solid to gas

48. wavelength in string
2pvL/g
Angle of incidence=angle of reflection
C=eoKA/D
?=2L/n

49. light ray that strikes a surface
Incident ray
P=i^2R=V^2/R=IV
Sin=v3/2 cos=1/2
F=qvBetasin?

50. centripetal acceleration
(1/2)?v^2
A=v^2/r
V=?A
Incident ray