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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. power of sound wave
When ?=90 b/c sin90=1
P=IA
N=c/v
New/old

2. buoyant force is due to...
Force a molecule of liquid feels toward molecules of some other substance
The liquid itself not the object
?x=1/2(v+vo)t
Hydrostatics

3. under constant acceleration - v=
Electric fields of all the light waves are oriented in the same direction
V=kQ/r
Vo+at
E=neE n is excess charge

4. only radioactive decay that conserves the nucleus charge
Minimum frequency of light that will cause emission of an electron
Low voltage to high voltage
Gamma decay
Insulator

5. increase in velocity of a fluid is associated with
Negative
Decrease in pressure that fluid exerts on the walls of the container
Wave speed
When ?=90 b/c sin90=1

6. As current flows through a resistor
Negative
Will never decrease capacitance
Emf is negative
Charge remains constant

7. point of shape change beyond which a material can go back to normal
Resistor
V=?A
?=m/v kg/m^3 g/ml g/cm^3
Yield strength

8. potential energy of spring
Counterclockwise is + clockwise is -
V=ED
New/old
U=(1/2)kx^2

9. 45
Sin=v2/2 cos=v2/2
W'=?E=?KE+?U
Increase length increase resistance
E=???=hc/?

10. capacitance equation in circuit
C=Q/V
R=pL/A
2pvm/k
(mass defect)(speed of light)^2

11. when an electron absorbs a photon
Vot+1/2at^2=(V0+v/2)t
It jumps to higher energy level
2pvm/k
Y=(F/A)/(?L/L) stress over strain

12. When is torque maximum
Fnet=0 thus Fg=Fs mg=kx
Number of protons
When ?=90 b/c sin90=1
F=Gm1m2/r^2

13. specific gravity greater than one
P=i^2R=V^2/R=IV
Sin=1/2 cos=v3/2
Radiation
Substance is more dense then water

14. gauge pressure in relation to the others
Difference between the mass of nucleus and the sum of nucleons
Vot+1/2at^2=(V0+v/2)t
F=ma
Difference between the absolute and atm pressure Pg=P- Patm

15. magnetic force
4 Hz
U=1/2QV=1/2CV^2=1/2Q^2/C
E=1/2k(A^2)
F=qvBetasin?

16. find energy in circuit
Charge/area
E=Pt
273K 0
Vbulk modulus

17. type of image ALWAYS created by diverging (convex) mirror
V^2=vo^2+2a?x ?x=1/2(vo+v)t
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
0K -273
Virtual upright smaller

18. In what position does spring has its greatest speed
F/A
Equilibrium position
E=neE n is excess charge
image/object

19. Newtons 2nd law of motion
Sin=1 cos=0
Spring constant
Amount of energy required for phase change from solid to liquid
F=ma

20. increasing emf has What effect on ?G
MRT
Converted to extra kinetic energy of the emitted electron
Makes ?G more negative thus more spontaneous
More malleable material

21. Electric Potential equation
V=kQ/r
Real inverted image
F1/A1=F2/A2
Negative

22. lever arm is halved what happens to torque
Resistor
Solid to gas
It is halved
Electric fields of all the light waves are oriented in the same direction

23. energy of a photon is dependent on...
1/2mv^2
Spreading out of light as it passes through a narrow opening
None
Frequency

24. 60
Convection
K+U=constant
Sin=v3/2 cos=1/2
Centrioles

25. splitting of white light in a prim is an example of...
None
Spring constant
Dispersion
2

26. speed of the spring
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
V=?A
None
No image is formed

27. electric field of parallel plate capacitor
Vrms=Vmax/v2
B=
E=V/d
J=Force*Time=mv - mvo=?p

28. s
Splitting of atomic nuclei
?=2L/n
Longitudinal
Charge/area

29. ?
Charge/length
Hydrostatics
Energy of electrons
C=e(A/d)

30. electric potential energy
F=q/e0
Q=CV
U=QV
V=???

31. max frequency of X- ray depends ONLY on...
E=???=hc/?
Energy of electrons
Force applied parallel to objects surface
T=1/f

32. image created by converging (concave) mirror when object is placed inside focal point
(1/2)?v^2
A sin?=n?
F=1/2(r)
Virtual upright

33. work as it relates to constant force
Makes ?G more negative thus more spontaneous
A sin?=n?
Charge/length
W=Fdcos?

34. Log(1000)=
3
Will never decrease capacitance
J=Force*Time=mv - mvo=?p
Force applied parallel to objects surface

35. total energy of spring system
More malleable material
E=V/d
E=1/2k(A^2)
T=1/f

36. work as product of pressure and volume change
Incident ray
F1/A1=F2/A2
Body in motion remains in motion unless net force acts upon it
F=q/e0

37. Newtons 1st law of motion
Counterclockwise is + clockwise is -
It jumps to higher energy level
Body in motion remains in motion unless net force acts upon it
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

38. -Beta- decay
Neutron is converted into a proton and an electron is emitted
Q=CV
Irms=Imax/v2
B=

39. 30
N*s/m^2
Sin=1/2 cos=v3/2
Pascal (Pa) N/m^2
F=nv/2L

40. open pipe wavelength
Points away from + and toward -
2
?=2L/n
Mass number

41. all harmonics have the same
Sin=1 cos=0
Difference between the mass of nucleus and the sum of nucleons
Emf is positive
Wave speed

42. in calculating torque - which direction is + and which is
No image is formed
Counterclockwise is + clockwise is -
Perpendicular to each other
Kg*m/s^2

43. under what conditions will light undergo total internal reflection
Inverted image
P=m?v
V=ED
Light travels from high n to lower n with an angle of incidence greater than the critical angle

44. bulk modulus
B=(F/A)/(?V/V)
The shortest wavelength
Negative
F1/A1=F2/A2

45. Capacitors in series
Vsin?
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
More flow less resistance
None

46. kirchhoff's rule -- travel from negative to positive
Force applied parallel to objects surface
Perpendicular to each other
Emf is positive
W=qv

47. When does turbulence in a fluid arise
When velocity of the fluid exceeds critical velocity
Spreading out of light as it passes through a narrow opening
Energy required to free electron from given metal
None

48. angular frequency of spring ?
Points away from + and toward -
Coulomb=amphere*sec
?=vk/m=2p??
Vbulk modulus

49. ? of sound wave=
Virtual upright
V/??
Virtual upright smaller
Conduction

50. density with units
373K 100
Internal resistance is zero voltage=emf
?=m/v kg/m^3 g/ml g/cm^3
3a=Beta