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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. point of shape change beyond which a material can go back to normal
Q=mc?t
Gamma decay
Intensity
Yield strength

2. voltage of AC
Vrms=Vmax/v2
Zero resistance
K+U=constant
Q=mL

3. electric field equation
C=e(A/d)
Req=R1+R2+R3 Veq=V1+V2+V3
T=1/f
E=kQ/r^2

4. viscosity
E=???=hc/?
Conduction
E=Pt
Fluid resistance to flow

5. conservation of energy law
Holds whenever we have a change in energy ?E=?KE+?PE=0
Internal resistance is zero voltage=emf
Hydrostatics
Amount of energy required for phase change from solid to liquid

6. magnitude of current
2pvm/k
I=?q/?t
Points away from + and toward -
Splitting of atomic nuclei

7. equation for kinetic friction
Emf is negative
Fk=
Dispersion
F=- kx

8. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Vo^2+2a(?x)
Mass number
F=r/2

9. When is voltage constant across capacitors
M1v1=m2v2
When in parallel
R=pL/A
A Calorie is a nutritional term equal to 1000 calories

10. In what position does spring has its greatest speed
Equilibrium position
W=mg=?Vg
When ?=90 b/c sin90=1
Sin=0 cos=1

11. location of minima in diffraction pattern
F1/A1=F2/A2
?=2L/n
Irms=Imax/v2
A sin?=n?

12. all harmonics have the same
W'=?E=?KE+?U
Wave speed
P=m?v
W=mg=?Vg

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

14. capacitance equation in circuit
Gas to solid
C=Q/V
F=1/2(r)
F1/A1=F2/A2

15. Gauss's Law
MRT
None
Solute whose solution is conductive
F=q/e0

16. density of water
1000 kg/m^3 or 1 g/cm^3
Longitudinal
2pr
Increase length increase resistance

17. polarized light
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Electric fields of all the light waves are oriented in the same direction
Irms=Imax/v2
A=v^2/r

18. electrolyte
Solute whose solution is conductive
V=ED
V=kq/r
0K -273

19. The bigger the cross - section of a resistor..
F1/A1=F2/A2
More flow less resistance
Protons+neutrons
The shortest wavelength

20. potential energy of spring
Vcos?
U=(1/2)kx^2
Current*voltage
Spring constant

21. unit for energy beside J
EV
0K -273
Emf is positive
E*r

22. electric potential energy
U=QV
E=V/d
Gas to solid
Proton or neutron

23. capacitance of simple parallel plate (not according to Ohms)
700nm -400nm
Fs=
P=i^2r
C=e(A/d)

24. type of image ALWAYS created by diverging (convex) mirror
MRT
Pressure to move - voltage when no charge is moving between 2 terminals
Virtual upright smaller
Weighted average of the masses of the element

25. charge of gamma particles
None
Sin=1/2 cos=v3/2
?L=aL?T
W=Fdcos?

26. Ohm's Law
Spring constant
Resistor
V=IR
Current*voltage

27. plane mirrors create What type of image
New/old
Virtual
It jumps to higher energy level
U=(1/2)kx^2

28. magnetic field of solenoid
As speed of fluid increases pressure and potential energy decrease
Force and acceleration
U=q?v
B=

29. excess energy of a photon is...
Image is always upright virtual and smaller
E=kQ/r^2
None
Converted to extra kinetic energy of the emitted electron

30. Newtons 3rd law of motion
New/old
F=nv/2L
F=xk=mg
F=- F

31. What does atoms atomic weight represent
Resistor
Weighted average of the masses of the element
Irms=Imax/v2
Inverted image

32. closed pipe frequency
F=E*A
??=nv/4L
Upright image
E=1/2k(A^2)

33. parabolic mirror: object in front of focal point
Force applied parallel to objects surface
Virtual upright
Proton or neutron
A sin?=n?

34. 'real' side of a lens
R=pL/A
Ampere (1C/s)
Charge/length
Side opposite From which light originates

35. continuity equation*
When ?=90 b/c sin90=1
Real inverted
Converted to extra kinetic energy of the emitted electron
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)

36. wave velocity=
Substance is less dense then water
???
Req=R1+R2+R3 Veq=V1+V2+V3
E=???=hc/?

37. resistance in parallel
Dispersion
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Real image
I=?q/?t

38. visible light wavelength
Vcos?
P=1/f
F=qvBetasin?
700nm -400nm

39. what creates a magnetic field
N=c/v
Vcos?
Negative
Moving charge

40. Electric Potential equation
I=P/A
V=kQ/r
F=1/2(r)
Difference between the mass of nucleus and the sum of nucleons

41. circumference of a circle
Mass number
1000 kg/m^3 or 1 g/cm^3
Buoyant force equals blocks weight
2pr

42. period of pendulum
2pvL/g
F=1/2(r)
Q=CV
Kg*m/s^2

43. specific gravity is less than one
Substance is less dense then water
R=pL/A
Cohesion
A sin?=n?

44. z in isotopic notation
Number of protons
??=nv/4L
None
Sin=0 cos=-1

45. audible wave frequency
Zero resistance
1/2mv^2
Vot+1/2at^2=(V0+v/2)t
20 Hz to 20 -000 Hz

46. total horizontal distance traveled by projectile
Zero resistance
X=(initial horizontal v)(time in air)
Virtual upright
F=c/?

47. (-) magnification signifies
Inverted image
R=pL/A
A Calorie is a nutritional term equal to 1000 calories
Incident ray

48. closed pipe wavelength
?=4L/n
(mass defect)(speed of light)^2
Points away from + and toward -
Photon energy must be greater than work function of the material

49. for photoelectric material to liberate an electron
No net force acting on it
Approx .7
Solid to gas
Photon energy must be greater than work function of the material

50. process of combing smaller nuclei to create larger nuclei
Mass number
B=
Fusion
Longitudinal