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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. ideal ammeter
Zero resistance
Yield strength
N*s/m^2
Splitting of atomic nuclei

2. formula for solution which is diluted related to initial concentration
F=mv^2/r
M1v1=m2v2
Will never decrease capacitance
Irms=Imax/v2

3. reflection law
Angle of incidence=angle of reflection
Current*voltage
Force and acceleration
(Vo+v)/2

4. density of water
1000 kg/m^3 or 1 g/cm^3
Virtual
None
W'=?E=?KE+?U

5. find energy in circuit
Negative
E=Pt
Degree=p/180 radian
Increase length increase resistance

6. buoyant force is due to...
Intensity
The liquid itself not the object
U=q?v
373K 100

7. wavelength in string
Emf is positive
Pascal (Pa) N/m^2
Irms=Imax/v2
?=2L/n

8. momentum
Higher temperature increases resistance
P=m?v
Frequency
Perpendicular to each other

9. density with units
Force a molecule of liquid feels toward the other molecules of the liquid
?=m/v kg/m^3 g/ml g/cm^3
E=1/2k(A^2)
Cohesion

10. magnetic force
F=qvBetasin?
E=1/2k(A^2)
?V=BetaV?T
Low voltage to high voltage

11. when unlike charges move away from each other - U of the system
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
P=IA
Increases
It jumps to higher energy level

12. solves for power lost during transmission (one way)
A Calorie is a nutritional term equal to 1000 calories
Force a molecule of liquid feels toward molecules of some other substance
Sin=0 cos=-1
P=i^2r

13. threshold frequency (photoelectric effect)
W=mg=?Vg
1/f=1/o+ 1/i
Minimum frequency of light that will cause emission of an electron
V=???

14. work function
Energy required to free electron from given metal
Conductor
Q=mc?t
273K 0

15. electric field of parallel plate capacitor
Amount of energy required for phase change from solid to liquid
Substance is more dense then water
Kg*m/s^2
E=V/d

16. horizontal velocity of projectile
Constant for closed system independent of changes in area
Vcos?
Real image
Yield strength

17. what creates a magnetic field
B=(F/A)/(?V/V)
Moving charge
Diopters
3

18. When does turbulence in a fluid arise
I=?q/?t
When velocity of the fluid exceeds critical velocity
Virtual upright
Sin=v2/2 cos=v2/2

19. Log(100)=
Force and acceleration
1/f=1/o+ 1/i
Vrms=Vmax/v2
2

20. body in translational equilibrium
More rigid material
700nm -400nm
??=nv/4L
No net force acting on it

21. equation for kinetic friction
F1/A1=F2/A2
Fk=
Angle of incidence=angle of reflection
Ceq=C1+C2+C3 Veq=V1=V2=V3

22. conservation of energy law
Current*voltage
Holds whenever we have a change in energy ?E=?KE+?PE=0
Increases
2pr

23. v2/2
Neutron is converted into a proton and an electron is emitted
Approx .7
Charge remains constant
Degree=p/180 radian

24. total horizontal distance traveled by projectile
Substance is less dense then water
N*s/m^2
?x=1/2(v+vo)t
X=(initial horizontal v)(time in air)

25. calculate binding energy
(mass defect)(speed of light)^2
image/object
0K -273
Sin=0 cos=-1

26. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=10Log(I/Io)
2 times the focal distance
1/2mv^2
Beta=

27. relate velocities and displacement 2 ways
Minimum frequency of light that will cause emission of an electron
V^2=vo^2+2a?x ?x=1/2(vo+v)t
?=2L/n
A sin?=n?

28. bulk modulus
(mass defect)(speed of light)^2
B=(F/A)/(?V/V)
Beta=
Neutron is converted into a proton and an electron is emitted

29. find power in circuit
Intensity
Rate of doing work
Vot+1/2at^2=(V0+v/2)t
Current*voltage

30. study of fluids at rest
Body in motion remains in motion unless net force acts upon it
Voltage
Hydrostatics
N*s/m^2

31. energy of moving proton
1/2mv^2
Is equal to gravitational force
273K 0
Pascal (Pa) N/m^2

32. magnetic field of solenoid
U=(1/2)kx^2
Spring constant
B=
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

33. under constant acceleration V(average)=
Number of protons in nucleus
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
(Vo+v)/2
None

34. location of minima in diffraction pattern
A sin?=n?
Frequency
Sin=v3/2 cos=1/2
Vsin?

35. image created when converging (concave) mirror when object is placed beyond focal point
Real inverted image
None
Force a molecule of liquid feels toward molecules of some other substance
Amount of energy required for phase change from solid to liquid

36. loudness of sound
Solute whose solution is conductive
F=ma
Energy required to free electron from given metal
Intensity

37. What is an electron volt (eV)
Voltage
J=Force*Time=mv - mvo=?p
Energy gained by particle with charge of e when moved through one volt
Decrease in pressure that fluid exerts on the walls of the container

38. weight
Internal resistance is zero voltage=emf
1/2mv^2
W=mg=?Vg
(Vo+v)/2

39. electric potential energy
Virtual upright smaller
U=QV
Constant for closed system independent of changes in area
Force applied parallel to objects surface

40. electromotive force
C=Q/V
1/2mv^2
Pressure to move - voltage when no charge is moving between 2 terminals
Hydrostatics

41. sound level
Ceq=C1+C2+C3 Veq=V1=V2=V3
Beta=
1/2mv^2
Beta=10Log(I/Io)

42. formula for impulse (J)
V/??
J=Force*Time=mv - mvo=?p
Emf is positive
Approx .7

43. type of heat transfer involving the physical motion of heated material
Convection
F=- F
373K 100
P=IA

44. units for viscosity
I=P/A
4 Hz
Vo+at
N*s/m^2

45. charge of gamma particles
Convection
700nm -400nm
Resistor
None

46. z in isotopic notation
Splitting of atomic nuclei
Negative
Convection
Number of protons

47. voltage of AC
Vrms=Vmax/v2
Sin=1/2 cos=v3/2
M1v1=m2v2
F=Gm1m2/r^2

48. amplitude of spring is proportional to...
Force and acceleration
V=ED
The liquid itself not the object
Sin=1 cos=0

49. to find acceleration due to gravity
Sin=1/2 cos=v3/2
Resistor
F=I(L*B)
Derive universal gravitation equation

50. across capacitor what remains constant
Sin=1 cos=0
Voltage
Centrioles
Nsin?incident=nsin?refraction