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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. stays constant when light travels through boundary
Frequency
Sin=1 cos=0
Energy required to free electron from given metal
New/old

2. increase in velocity of a fluid is associated with
Vcos?
E=1/2k(A^2)
Decrease in pressure that fluid exerts on the walls of the container
Radiation

3. focal for spherical mirrors
Work/time
Dispersion
Fs=
F=1/2(r)

4. velocity for a wave
Insulator
Current*voltage
V=???
U=1/2QV=1/2CV^2=1/2Q^2/C

5. find energy in circuit
Energy required to free electron from given metal
E=Pt
F=xk=mg
Rate of doing work

6. negative charge moves spontaneously from
Low voltage to high voltage
Work/time
A Calorie is a nutritional term equal to 1000 calories
E=1/2k(A^2)

7. body in translational equilibrium
No net force acting on it
Kg*m/s^2
E=Pt
P=IA

8. charge of beta particles
Fluid resistance to flow
Fs=
U=(1/2)kx^2
Negative

9. work in electromagnetic field
Beta=
Sin=v2/2 cos=v2/2
W=qv
Work/time

10. units for capacitance
Yield strength
Frequency
Vrms=Vmax/v2
Farad 1 F= 1 c/v

11. angular frequency of spring ?
Resistor
Pascal (Pa) N/m^2
?=vk/m=2p??
Q=CV

12. audible wave frequency
J=Force*Time=mv - mvo=?p
Pascal (Pa) N/m^2
Incident light is used to free electrons from a metal
20 Hz to 20 -000 Hz

13. degrees to radians
Substance is less dense then water
3a=Beta
Degree=p/180 radian
Energy required to free electron from given metal

14. Newtons 2nd law of motion
Gas to solid
F=ma
(1/2)?v^2
Inverted image

15. amplitude of spring is proportional to...
F=ma
Emf is negative
Force a molecule of liquid feels toward the other molecules of the liquid
Force and acceleration

16. type of image ALWAYS created by diverging (convex) mirror
Voltage
1000 kg/m^3 or 1 g/cm^3
Spring constant
Virtual upright smaller

17. vertical velocity of projectile
Proton or neutron
V=kQ/r
Frequency
Vsin?

18. polarized light
Electric fields of all the light waves are oriented in the same direction
?=m/v kg/m^3 g/ml g/cm^3
Number of protons in nucleus
It jumps to higher energy level

19. boiling point of H2O in K and C
U=q?v
E=V/d
373K 100
E=???=hc/?

20. relate focal length and radius of curvature(r)
Yield strength
Nsin?incident=nsin?refraction
F=r/2
P=m?v

21. beat frequencies for two frequencies differing by 4 Hz
It jumps to higher energy level
Vo+at
4 Hz
Beta=

22. electric field maximum of insulating sphere
Points away from + and toward -
373K 100
Surface
When in parallel

23. 'real' side of a lens
Decrease in pressure that fluid exerts on the walls of the container
Vsin?
Irms=Imax/v2
Side opposite From which light originates

24. speed of light in a vacuum (c) =
???
Radiation
Frequency
P=m?v

25. study of fluids at rest
None
Light emitted due to heat
Hydrostatics
F1/A1=F2/A2

26. unit of current
U=q?v
U=QV
Ampere (1C/s)
Fs=

27. Electric Potential equation
V=kQ/r
Negative
Energy gained by particle with charge of e when moved through one volt
F=ma

28. Capacitors in series
Photon energy must be greater than work function of the material
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
As speed of fluid increases pressure and potential energy decrease
?V=BetaV?T

29. magnification=
image/object
Spreading out of light as it passes through a narrow opening
Emf is positive
Dispersion

30. 30
V=ED
Virtual upright
Mass number
Sin=1/2 cos=v3/2

31. relate charge and current
Q=mc?t
Coulomb=amphere*sec
N*s/m^2
Ampere (1C/s)

32. SI unit for pressure
Frequency
Pascal (Pa) N/m^2
F=Gm1m2/r^2
N is proportional to 1/?

33. frequency of spring is inversely proportional to...
B=
Beta=
W=Fdcos?
Mass

34. large moduli value
Side opposite From which light originates
F=nv/2L
More rigid material
Solid to gas

35. difference between Calorie and calorie
Increases
A Calorie is a nutritional term equal to 1000 calories
?=vk/m=2p??
It is halved

36. Newtons 1st law of motion
Q=CV
Body in motion remains in motion unless net force acts upon it
Vo+at
373K 100

37. parabolic mirror: image at focal point
Charge/area
A=v^2/r
T=1/f
No image is formed

38. closed pipe frequency
F=xk=mg
I=P/A
??=nv/4L
X=(initial horizontal v)(time in air)

39. loudness of sound
F=- F
Intensity
Holds whenever we have a change in energy ?E=?KE+?PE=0
When ?=90 b/c sin90=1

40. Log(100)=
Negative
Beta=
2
?=2L/n

41. light ray that strikes a surface
Incident ray
Q=mc?t
Negative
Fusion

42. when an electron absorbs a photon
Is equal to gravitational force
100% of the object will be submerged but will not sink
A sin?=n?
It jumps to higher energy level

43. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
Number of protons
Pressure to move - voltage when no charge is moving between 2 terminals
Force and acceleration

44. cohesion
???
Photon energy must be greater than work function of the material
Force a molecule of liquid feels toward the other molecules of the liquid
Upright image

45. capacitance of simple parallel plate (not according to Ohms)
Negative
C=e(A/d)
Charge remains constant
?=2L/n

46. direction of electric field created by charge
Energy of electrons
Points away from + and toward -
Body in motion remains in motion unless net force acts upon it
Sin=0 cos=-1

47. resistance equation
Sin=1/2 cos=v3/2
R=pL/A
Diopters
Conductor

48. under constant acceleration V(average)=
X=(initial horizontal v)(time in air)
(Vo+v)/2
Resistor
Y=(F/A)/(?L/L) stress over strain

49. When is torque maximum
When ?=90 b/c sin90=1
Work/time
Weighted average of the masses of the element
Number of protons

50. light bends away from normal when
Real inverted image
Converted to extra kinetic energy of the emitted electron
N1>n2
N is proportional to 1/?