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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. center of curvature is...
N=c/v
2 times the focal distance
Sin=0 cos=-1
W=qv

2. closed pipe frequency
Nsin?incident=nsin?refraction
Vot+1/2at^2=(V0+v/2)t
??=nv/4L
U=(1/2)kx^2

3. conservation of energy law
Holds whenever we have a change in energy ?E=?KE+?PE=0
(Vo+v)/2
Energy required to free electron from given metal
Approx .7

4. diffraction
Side opposite From which light originates
Vcos?
Image is always upright virtual and smaller
Spreading out of light as it passes through a narrow opening

5. Gauss's Law
Vrms=Vmax/v2
F=q/e0
Light travels from high n to lower n with an angle of incidence greater than the critical angle
I=P/A

6. current of AC
image/object
Irms=Imax/v2
V=kQ/r
E=???=hc/?

7. formula for impulse (J)
J=Force*Time=mv - mvo=?p
1/f=1/o+ 1/i
Force and acceleration
Emf is negative

8. ? of sound wave=
V/??
Holds whenever we have a change in energy ?E=?KE+?PE=0
Weighted average of the masses of the element
Fnet=0 thus Fg=Fs mg=kx

9. suppose a block is floating in H2O - What does this mean
F=mv^2/r
New/old
Buoyant force equals blocks weight
Real image

10. atomic mass number represents
2 times the focal distance
Fk=
X=(initial horizontal v)(time in air)
Protons+neutrons

11. energy of a photon is dependent on...
E=V/d
Frequency
Incident light is used to free electrons from a metal
Vo+at

12. buoyant force is due to...
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
373K 100
Coulomb=amphere*sec
The liquid itself not the object

13. under constant acceleration - v=
Wave speed
Q=mc?t
Derive universal gravitation equation
Vo+at

14. increasing emf has What effect on ?G
Virtual upright
U=(1/2)kx^2
Makes ?G more negative thus more spontaneous
When in parallel

15. amplitude of spring is proportional to...
Increases
F=Gm1m2/r^2
Beta=10Log(I/Io)
Force and acceleration

16. degrees to radians
Yield strength
Vrms=Vmax/v2
E*r
Degree=p/180 radian

17. for photoelectric material to liberate an electron
Side opposite From which light originates
Equilibrium position
Photon energy must be greater than work function of the material
Fk=

18. (+) magnification signifies
Upright image
Light emitted due to heat
?=vk/m=2p??
1/2mv^2

19. power (in general)
F=1/2(r)
A Calorie is a nutritional term equal to 1000 calories
Work/time
Virtual upright

20. when unlike charges move away from each other - U of the system
Current*voltage
Increases
Insulator
A Calorie is a nutritional term equal to 1000 calories

21. speed of sound in proportional to...
P=1/f
Vbulk modulus
Conduction
Difference between the absolute and atm pressure Pg=P- Patm

22. equation for kinetic friction
Fk=
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
F1/A1=F2/A2
When velocity of the fluid exceeds critical velocity

23. only radioactive decay that conserves the nucleus charge
Gamma decay
None
When velocity of the fluid exceeds critical velocity
Ampere (1C/s)

24. units for newtons
Negative
Upright image
Degree=p/180 radian
Kg*m/s^2

25. volume thermal expansion of a solid
Substance is more dense then water
It jumps to higher energy level
?V=BetaV?T
Real image

26. light bends toward normal when
?V=BetaV?T
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
N2>n1
2pvm/k

27. snell's law derivative
M1v1=m2v2
Side opposite From which light originates
Number of protons in nucleus
N is proportional to 1/?

28. when an electron absorbs a photon
It jumps to higher energy level
MRT
Negative
V/??

29. for object in SHM E=
F=I(L*B)
Farad 1 F= 1 c/v
Req=R1+R2+R3 Veq=V1+V2+V3
K+U=constant

30. body in translational equilibrium
1/f=1/o+ 1/i
No net force acting on it
??=nv/4L
?L=aL?T

31. total energy of spring system
Incident light is used to free electrons from a metal
E=1/2k(A^2)
Amount of energy required for phase change from solid to liquid
E*r

32. Formula for centripetal force
MRT
F=mv^2/r
0K -273
Beta=

33. force experience by stationary particle in magnetic field
A sin?=n?
None
2pvL/g
Upright image

34. gravitational force formula
J=Force*Time=mv - mvo=?p
Diopters
Is equal to gravitational force
F=Gm1m2/r^2

35. horizontal velocity of projectile
Nsin?incident=nsin?refraction
F=nv/2L
Vcos?
Splitting of atomic nuclei

36. equation for static friction
U=(1/2)kx^2
Fs=
R=pL/A
Constant for closed system independent of changes in area

37. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Fs=
2pr
Conduction
T=rFsin?

38. density of water
Diopters
Charge/length
1000 kg/m^3 or 1 g/cm^3
B=

39. Newtons 2nd law of motion
F=ma
WATTS
Force a molecule of liquid feels toward molecules of some other substance
Spring constant

40. units for power
WATTS
273K 0
Irms=Imax/v2
Gas to solid

41. total horizontal distance traveled by projectile
??=nv/4L
X=(initial horizontal v)(time in air)
Emf is positive
Sin=0 cos=1

42. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
Pressure to move - voltage when no charge is moving between 2 terminals
Weighted average of the masses of the element
N2>n1

43. In what position does spring has its greatest speed
Points away from + and toward -
Vcos?
Makes ?G more negative thus more spontaneous
Equilibrium position

44. image created by converging (concave) mirror when object is placed inside focal point
Bigger and beyond original object
Voltage
Virtual upright
F=I(L*B)

45. cohesion
Force a molecule of liquid feels toward the other molecules of the liquid
E=neE n is excess charge
Current*voltage
E=V/d

46. units for capacitance
Farad 1 F= 1 c/v
273K 0
Work/time
Vo^2+2a(?x)

47. work in electromagnetic field
Spreading out of light as it passes through a narrow opening
Incident ray
W=qv
Difference between the mass of nucleus and the sum of nucleons

48. focal for spherical mirrors
N*s/m^2
100% of the object will be submerged but will not sink
Neutron is converted into a proton and an electron is emitted
F=1/2(r)

49. Electric Potential equation
When velocity of the fluid exceeds critical velocity
V=?A
V=kQ/r
Approx .7

50. a in isotopic notation
Frequency
F=q/e0
Hydrostatics
Mass number