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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
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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. increase in velocity of a fluid is associated with
Rate of doing work
Pascal (Pa) N/m^2
Decrease in pressure that fluid exerts on the walls of the container
W=qv

2. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=
(mass defect)(speed of light)^2
Mass number
Angle of incidence=angle of reflection

3. When is torque maximum
When ?=90 b/c sin90=1
Force applied parallel to objects surface
??=nv/4L
It jumps to higher energy level

4. calculate lens power
P=1/f
Photon energy must be greater than work function of the material
3a=Beta
P=i^2r

5. potential energy of spring
U=(1/2)kx^2
V/??
Force and acceleration
Longitudinal

6. equation for v between two parallel plates
Difference between the absolute and atm pressure Pg=P- Patm
Sin=v2/2 cos=v2/2
Conductor
V=ED

7. Newtons 3rd law of motion
K+U=constant
Conductor
Vsin?
F=- F

8. magnitude of magnetic field for current carrying wire
Vbulk modulus
U=q?v
Electric fields of all the light waves are oriented in the same direction
Beta=

9. intensity of sound
I=P/A
W=qv
When ?=90 b/c sin90=1
Constant for closed system independent of changes in area

10. work in electromagnetic field
Emf is negative
WATTS
Frequency
W=qv

11. large moduli value
?=4L/n
Side opposite From which light originates
More rigid material
F=E*A

12. power dissipated by resistor (3 ways)
F=1/2(r)
P=i^2R=V^2/R=IV
None
Force applied parallel to objects surface

13. electric field equation
E=kQ/r^2
Solute whose solution is conductive
Virtual upright
(mass defect)(speed of light)^2

14. find factor by which something has been changed
0K -273
(1/2)?v^2
Number of protons
New/old

15. frequency in string
F=nv/2L
A Calorie is a nutritional term equal to 1000 calories
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
C=e(A/d)

16. reflection law
N=c/v
Angle of incidence=angle of reflection
2 times the focal distance
Incident ray

17. work function
Energy required to free electron from given metal
Yield strength
Virtual upright smaller
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

18. image created by converging (concave) mirror when object is placed inside focal point
Virtual upright
Beta=
P=IA
Y=(F/A)/(?L/L) stress over strain

19. force due to electric field on single charge
0K -273
E=neE n is excess charge
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Increases

20. volumetric rate of flow (property)
Constant for closed system independent of changes in area
Negative
Neutron is converted into a proton and an electron is emitted
?=2L/n

21. a in isotopic notation
Fusion
Mass number
E=1/2k(A^2)
Proton or neutron

22. density of water
When in parallel
P=1/f
1000 kg/m^3 or 1 g/cm^3
Degree=p/180 radian

23. parabolic mirror: object in front of focal point
Energy gained by particle with charge of e when moved through one volt
Virtual upright
Vrms=Vmax/v2
Virtual upright smaller

24. velocity for a wave
V=???
When ?=90 b/c sin90=1
Number of protons
4 Hz

25. thermal expansion of a solid
Internal resistance is zero voltage=emf
A=v^2/r
E=???=hc/?
?L=aL?T

26. relate velocities and displacement 2 ways
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Approx .7
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Vsin?

27. units for capacitance
When velocity of the fluid exceeds critical velocity
Voltage
Real inverted image
Farad 1 F= 1 c/v

28. vertical velocity of projectile
Radiation
EV
U=1/2QV=1/2CV^2=1/2Q^2/C
Vsin?

29. adhesion
Force a molecule of liquid feels toward molecules of some other substance
C=eoKA/D
Low voltage to high voltage
Resistor

30. snells law
Nsin?incident=nsin?refraction
Splitting of atomic nuclei
The liquid itself not the object
Virtual upright

31. cohesion
Force a molecule of liquid feels toward the other molecules of the liquid
Centrioles
X=(initial horizontal v)(time in air)
4 Hz

32. units for power
WATTS
Emf is positive
C=e(A/d)
Current*voltage

33. Ohm's Law
V=IR
Fk=
Amount of energy required for phase change from solid to liquid
None

34. frequency of light given wavelength
F=c/?
B=
Irms=Imax/v2
???

35. suppose a block is floating in H2O - What does this mean
(Vo+v)/2
Buoyant force equals blocks weight
Incident light is used to free electrons from a metal
V=ED

36. density with units
Incident ray
?=m/v kg/m^3 g/ml g/cm^3
V^2=vo^2+2a?x ?x=1/2(vo+v)t
E=Pt

37. capacitors in parallel
U=1/2QV=1/2CV^2=1/2Q^2/C
P=i^2R=V^2/R=IV
Ceq=C1+C2+C3 Veq=V1=V2=V3
Internal resistance is zero voltage=emf

38. power of sound wave
Surface
?V=BetaV?T
Low voltage to high voltage
P=IA

39. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Proton or neutron
Minimum frequency of light that will cause emission of an electron
More malleable material

40. buoyant force is due to...
The liquid itself not the object
Sin=0 cos=-1
F1/A1=F2/A2
I=P/A

41. gauge pressure in relation to the others
2pvm/k
W=Fdcos?
Difference between the absolute and atm pressure Pg=P- Patm
Real image

42. only radioactive decay that conserves the nucleus charge
Weighted average of the masses of the element
Farad 1 F= 1 c/v
Radiation
Gamma decay

43. object placed inside focal point in converging lens create What type of image
Holds whenever we have a change in energy ?E=?KE+?PE=0
Low voltage to high voltage
Virtual upright
Longitudinal

44. period of pendulum
U=QV
700nm -400nm
Yield strength
2pvL/g

45. (+) magnification signifies
Substance is less dense then water
Virtual upright
Upright image
Force a molecule of liquid feels toward molecules of some other substance

46. under what conditions will light undergo total internal reflection
Virtual upright
Force a molecule of liquid feels toward molecules of some other substance
Light travels from high n to lower n with an angle of incidence greater than the critical angle
When velocity of the fluid exceeds critical velocity

47. beat frequencies for two frequencies differing by 4 Hz
Energy required to free electron from given metal
4 Hz
3a=Beta
K+U=constant

48. What does atoms atomic weight represent
(mass defect)(speed of light)^2
Weighted average of the masses of the element
???
N2>n1

49. in calculating torque - which direction is + and which is
Counterclockwise is + clockwise is -
Conductor
Insulator
Q=mc?t

50. degrees to radians
Degree=p/180 radian
P=1/f
2pvL/g
?=4L/n