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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. dynamic pressure
273K 0
F=E*A
(1/2)?v^2
Solid to gas

2. all harmonics have the same
C=eoKA/D
Holds whenever we have a change in energy ?E=?KE+?PE=0
Wave speed
2

3. unit for energy beside J
Force applied parallel to objects surface
Substance is less dense then water
EV
Bigger and beyond original object

4. relate focal length and radius of curvature(r)
It jumps to higher energy level
T=1/f
V=?A
F=r/2

5. conservation of energy law
Perpendicular to each other
Holds whenever we have a change in energy ?E=?KE+?PE=0
Conduction
P=IA

6. electrical power
P=IV
Gas to solid
Q=mL
Holds whenever we have a change in energy ?E=?KE+?PE=0

7. equation relating heat gained and temperature change
U=q?v
Substance is more dense then water
P=m?v
Q=mc?t

8. frequency of spring is proportional to...
Spring constant
Increases
Sin=1 cos=0
Sin=0 cos=1

9. parabolic mirror: object in front of focal point
Irms=Imax/v2
Virtual upright
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Sin=1/2 cos=v3/2

10. material with low resistance
Conductor
Energy gained by particle with charge of e when moved through one volt
Sin=1/2 cos=v3/2
Equilibrium position

11. reflection law
P=IV
Angle of incidence=angle of reflection
Light emitted due to heat
I=P/A

12. frequency of light given wavelength
F=c/?
Charge/area
Minimum frequency of light that will cause emission of an electron
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

13. density of water
1000 kg/m^3 or 1 g/cm^3
Coulomb=amphere*sec
Degree=p/180 radian
?L=aL?T

14. specific gravity is less than one
?=2L/n
Substance is less dense then water
Virtual
Difference between the absolute and atm pressure Pg=P- Patm

15. power is defined as
E=V/d
Rate of doing work
Image is always upright virtual and smaller
Force a molecule of liquid feels toward the other molecules of the liquid

16. pressure
F/A
Internal resistance is zero voltage=emf
A=v^2/r
Virtual upright smaller

17. work done by non conservative force

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18. across capacitor what remains constant
Convection
No net force acting on it
Voltage
Light emitted due to heat

19. under constant acceleration - two ways ?x=
Vot+1/2at^2=(V0+v/2)t
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
2pvL/g
Force applied parallel to objects surface

20. material with moderate resistance
Intensity
F=xk=mg
Decrease in pressure that fluid exerts on the walls of the container
Resistor

21. solves for power lost during transmission (one way)
Sin=0 cos=-1
Light travels from high n to lower n with an angle of incidence greater than the critical angle
P=i^2r
J=Force*Time=mv - mvo=?p

22. deposition
Resistor
Beta=
Inverted image
Gas to solid

23. freezing point of H2O in K and C
W=mg=?Vg
Image is always upright virtual and smaller
F=r/2
273K 0

24. magnitude of current
U=(1/2)kx^2
V=IR
I=?q/?t
Image is always upright virtual and smaller

25. kirchhoff's rule -- travel from negative to positive
373K 100
Emf is positive
W=mg=?Vg
Points away from + and toward -

26. Bernoulli's equation
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Moving charge
N2>n1
X=(initial horizontal v)(time in air)

27. cohesion
Converted to extra kinetic energy of the emitted electron
3
Force a molecule of liquid feels toward the other molecules of the liquid
I=P/A

28. The bigger the cross - section of a resistor..
Energy required to free electron from given metal
More flow less resistance
Resistor
F=1/2(r)

29. kirchhoff's rule -- travel from positive to negative
4 Hz
Emf is negative
P=IA
2pr

30. weight
Virtual
WATTS
W=mg=?Vg
F=c/?

31. a lightbulb in a circuit is a
N*s/m^2
Emf is negative
Resistor
Energy required to free electron from given metal

32. capacitance equation in circuit
Increases
C=Q/V
Neutron is converted into a proton and an electron is emitted
WATTS

33. resistance equation
R=pL/A
F=nv/2L
3a=Beta
Virtual upright

34. to find acceleration due to gravity
None
V/??
T=1/f
Derive universal gravitation equation

35. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Electric fields of all the light waves are oriented in the same direction
Sin=0 cos=-1
Conduction
?=m/v kg/m^3 g/ml g/cm^3

36. capacitors in parallel
E*r
Ceq=C1+C2+C3 Veq=V1=V2=V3
Charge/length
Converted to extra kinetic energy of the emitted electron

37. calculate lens power
Pressure to move - voltage when no charge is moving between 2 terminals
Buoyant force equals blocks weight
???
P=1/f

38. find power in circuit
Q=CV
Current*voltage
C=e(A/d)
V=kQ/r

39. Hooke's Law
373K 100
Converted to extra kinetic energy of the emitted electron
Ampere (1C/s)
F=- kx

40. mass defect
X=(initial horizontal v)(time in air)
P=IV
Difference between the mass of nucleus and the sum of nucleons
E=???=hc/?

41. fission
J=Force*Time=mv - mvo=?p
Splitting of atomic nuclei
Hydrostatics
Y=(F/A)/(?L/L) stress over strain

42. magnetic force
C=eoKA/D
F=qvBetasin?
Dispersion
Resistor

43. work in electromagnetic field
Incident ray
(1/2)?v^2
Fusion
W=qv

44. units for power of a lens
Diopters
Electric fields of all the light waves are oriented in the same direction
V=IR
Virtual upright

45. Newtons 2nd law of motion
Sin=1 cos=0
F=ma
?=2L/n
When in parallel

46. light bends toward normal when
X=(initial horizontal v)(time in air)
None
N2>n1
?x=1/2(v+vo)t

47. light bends away from normal when
X=(initial horizontal v)(time in air)
Incident light is used to free electrons from a metal
Energy gained by particle with charge of e when moved through one volt
N1>n2

48. relate charge and current
?=2L/n
Virtual upright
Coulomb=amphere*sec
C=eoKA/D

49. force experience by stationary particle in magnetic field
None
C=Q/V
E=kQ/r^2
As speed of fluid increases pressure and potential energy decrease

50. centripetal acceleration
Ceq=C1+C2+C3 Veq=V1=V2=V3
Vbulk modulus
???
A=v^2/r