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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. type of heat transfer involving the physical motion of heated material
Convection
Mass
Frequency
W'=?E=?KE+?U

2. adhesion
Energy required to free electron from given metal
P=i^2r
Force a molecule of liquid feels toward molecules of some other substance
T=rFsin?

3. torque formula
Is equal to gravitational force
T=rFsin?
?=m/v kg/m^3 g/ml g/cm^3
U=q?v

4. across capacitor what remains constant
Kg*m/s^2
W'=?E=?KE+?U
Voltage
P=IV

5. What is displacement equation
Work/time
Solid to gas
F=mv^2/r
?x=1/2(v+vo)t

6. conservation of energy law
R=pL/A
Holds whenever we have a change in energy ?E=?KE+?PE=0
F=E*A
Kg*m/s^2

7. When is torque maximum
When ?=90 b/c sin90=1
Derive universal gravitation equation
Constant for closed system independent of changes in area
None

8. intensity of sound
F=Gm1m2/r^2
?=2L/n
T=rF where F is proportional to mass and r is distance from pivot
I=P/A

9. viscosity
P=m?v
Fluid resistance to flow
Photon energy must be greater than work function of the material
Slower light will travel

10. z in isotopic notation
Wave speed
Conductor
E=1/2k(A^2)
Number of protons

11. equation for static friction
Fs=
Substance is more dense then water
Converted to extra kinetic energy of the emitted electron
Radiation

12. SI unit for pressure
Sin=v3/2 cos=1/2
Real inverted
Pascal (Pa) N/m^2
2 times the focal distance

13. 30
I=?q/?t
Sin=1/2 cos=v3/2
F=c/?
None

14. magnitude of magnetic field for current carrying wire
Virtual upright
F=- F
N=c/v
Beta=

15. frequency in string
F=nv/2L
?V=BetaV?T
Low voltage to high voltage
Voltage

16. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
Upright image
Vo^2+2a(?x)
Fk=

17. freezing point of H2O in K and C
N*s/m^2
Weighted average of the masses of the element
273K 0
Irms=Imax/v2

18. specific gravity greater than one
Substance is more dense then water
Real image
Ampere (1C/s)
Sin=1 cos=0

19. velocity for a wave
(Vo+v)/2
The liquid itself not the object
Constant for closed system independent of changes in area
V=???

20. open pipe wavelength
Moving charge
(mass defect)(speed of light)^2
Voltage
?=2L/n

21. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
Protons+neutrons
Image is always upright virtual and smaller
F=r/2

22. reflection law
?=4L/n
Angle of incidence=angle of reflection
??=nv/4L
N2>n1

23. under content acceleration v^2=
Mass number
Fluid resistance to flow
Vo^2+2a(?x)
Minimum frequency of light that will cause emission of an electron

24. light ray that strikes a surface
?=m/v kg/m^3 g/ml g/cm^3
Constant for closed system independent of changes in area
Incident ray
Vot+1/2at^2=(V0+v/2)t

25. unit of current
Ampere (1C/s)
Work/time
Convection
Fluid resistance to flow

26. total horizontal distance traveled by projectile
X=(initial horizontal v)(time in air)
Mass
Increases
Counterclockwise is + clockwise is -

27. work as product of pressure and volume change
Sin=0 cos=1
Energy of electrons
F1/A1=F2/A2
F/A

28. under constant acceleration V(average)=
Gamma decay
Real inverted
Nsin?incident=nsin?refraction
(Vo+v)/2

29. (-) magnification signifies
Decrease in pressure that fluid exerts on the walls of the container
F=xk=mg
Conductor
Inverted image

30. dielectric material
Q=CV
W'=?E=?KE+?U
1000 kg/m^3 or 1 g/cm^3
Will never decrease capacitance

31. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
Real inverted
Gamma decay
Splitting of atomic nuclei

32. volume thermal expansion of a solid
?=m/v kg/m^3 g/ml g/cm^3
A Calorie is a nutritional term equal to 1000 calories
Body in motion remains in motion unless net force acts upon it
?V=BetaV?T

33. closed pipe wavelength
Current*voltage
?=4L/n
F=- F
Difference between the absolute and atm pressure Pg=P- Patm

34. location of minima in diffraction pattern
A sin?=n?
F=qvBetasin?
Virtual upright
3

35. only radioactive decay that conserves the nucleus charge
When velocity of the fluid exceeds critical velocity
Gamma decay
B=(F/A)/(?V/V)
20 Hz to 20 -000 Hz

36. What does atoms atomic weight represent
(mass defect)(speed of light)^2
700nm -400nm
Electric fields of all the light waves are oriented in the same direction
Weighted average of the masses of the element

37. calculate binding energy
(mass defect)(speed of light)^2
K+U=constant
Irms=Imax/v2
Virtual upright

38. units for viscosity
F=- kx
N*s/m^2
C=eoKA/D
Force and acceleration

39. magnification=
V=???
image/object
Protons+neutrons
Vcos?

40. equation for capacitance with dielectric
Body in motion remains in motion unless net force acts upon it
E=1/2k(A^2)
Frequency
C=eoKA/D

41. parabolic mirror: image at focal point
Incident light is used to free electrons from a metal
Kg*m/s^2
Increases
No image is formed

42. 'real' side of a lens
Solute whose solution is conductive
C=Q/V
Side opposite From which light originates
?V=BetaV?T

43. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
WATTS
P=IV
Moving charge

44. As current flows through a resistor
Y=(F/A)/(?L/L) stress over strain
Fusion
Charge remains constant
P=i^2R=V^2/R=IV

45. light bends away from normal when
Conductor
N1>n2
Substance is more dense then water
Image is always upright virtual and smaller

46. continuity equation*
?V=BetaV?T
Farad 1 F= 1 c/v
2
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

47. under constant acceleration - v=
Vo+at
Vsin?
Sin=1 cos=0
When in parallel

48. electric field and magnetic field are...
(1/2)?v^2
M1v1=m2v2
Perpendicular to each other
Virtual upright

49. speed of sound in proportional to...
As speed of fluid increases pressure and potential energy decrease
Vbulk modulus
Proton or neutron
Points away from + and toward -

50. youngs modulus
W=Fdcos?
Solute whose solution is conductive
Y=(F/A)/(?L/L) stress over strain
Spreading out of light as it passes through a narrow opening