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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. period of pendulum
2pvL/g
Kg*m/s^2
Decrease in pressure that fluid exerts on the walls of the container
2 times the focal distance

2. units for viscosity
(1/2)?v^2
Internal resistance is zero voltage=emf
A Calorie is a nutritional term equal to 1000 calories
N*s/m^2

3. closed pipe wavelength
The liquid itself not the object
?=4L/n
V^2=vo^2+2a?x ?x=1/2(vo+v)t
700nm -400nm

4. fission
?=2L/n
Splitting of atomic nuclei
U=q?v
No image is formed

5. density with units
More rigid material
?=m/v kg/m^3 g/ml g/cm^3
C=Q/V
Surface

6. mirror image is on same side as object
Real image
None
Charge remains constant
Slower light will travel

7. sound level
Beta=10Log(I/Io)
U=q?v
1000 kg/m^3 or 1 g/cm^3
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

8. larger the index of refraction..
Frequency
A=v^2/r
Slower light will travel
Vrms=Vmax/v2

9. light ray that strikes a surface
Force and acceleration
WATTS
Difference between the mass of nucleus and the sum of nucleons
Incident ray

10. surface tension results from
F=mv^2/r
E*r
Higher temperature increases resistance
Cohesion

11. frequency of spring is proportional to...
(Vo+v)/2
Hydrostatics
Force and acceleration
Spring constant

12. kirchhoff's rule -- travel from positive to negative
Spreading out of light as it passes through a narrow opening
Emf is negative
Fusion
F=xk=mg

13. charge of beta particles
Body in motion remains in motion unless net force acts upon it
Side opposite From which light originates
Incident light is used to free electrons from a metal
Negative

14. location of minima in diffraction pattern
3
A sin?=n?
Conductor
700nm -400nm

15. under constant acceleration - v=
Light emitted due to heat
2pvm/k
Virtual upright
Vo+at

16. calculate binding energy
V=ED
(mass defect)(speed of light)^2
Fusion
Convection

17. ideal ammeter
Zero resistance
Counterclockwise is + clockwise is -
V=IR
Fnet=0 thus Fg=Fs mg=kx

18. torque formula
???
100% of the object will be submerged but will not sink
T=rFsin?
Q=mc?t

19. solves for power lost during transmission (one way)
Sin=1 cos=0
373K 100
Increases
P=i^2r

20. SI unit for pressure
Virtual upright
Pascal (Pa) N/m^2
T=1/f
When ?=90 b/c sin90=1

21. bulk modulus
B=(F/A)/(?V/V)
Irms=Imax/v2
Fusion
V=???

22. period of spring
I=P/A
Work/time
2pvm/k
Vot+1/2at^2=(V0+v/2)t

23. boiling point of H2O in K and C
Neutron is converted into a proton and an electron is emitted
373K 100
A=v^2/r
Low voltage to high voltage

24. freezing point of H2O in K and C
P=i^2r
273K 0
F=ma
Current*voltage

25. light bends away from normal when
U=QV
Q=mc?t
N1>n2
Fnet=0 thus Fg=Fs mg=kx

26. energy of moving proton
1/2mv^2
Moving charge
Frequency
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

27. incandescence
W=mg=?Vg
700nm -400nm
Light emitted due to heat
1/2mv^2

28. photoelectric effect
E=???=hc/?
Incident light is used to free electrons from a metal
Cohesion
Pascal (Pa) N/m^2

29. absolute zero in K and C
Sin=1/2 cos=v3/2
Decrease in pressure that fluid exerts on the walls of the container
0K -273
Ceq=C1+C2+C3 Veq=V1=V2=V3

30. momentum
Inverted image
Energy of electrons
P=m?v
Resistor

31. What is displacement equation
2pvm/k
Charge/area
Real image
?x=1/2(v+vo)t

32. open pipe frequency
Pressure to move - voltage when no charge is moving between 2 terminals
1/2mv^2
Fk=
F=nv/2L

33. length of resistor
Increase length increase resistance
Force a molecule of liquid feels toward the other molecules of the liquid
E=1/2k(A^2)
Fs=

34. equation relating heat gained and temperature change
Vrms=Vmax/v2
Q=mc?t
Ceq=C1+C2+C3 Veq=V1=V2=V3
Inverted image

35. for object in SHM E=
Force and acceleration
A=v^2/r
K+U=constant
Amount of energy required for phase change from solid to liquid

36. resistance in parallel
Negative
Frequency
Pressure to move - voltage when no charge is moving between 2 terminals
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

37. specific gravity greater than one
F=c/?
Surface
Substance is more dense then water
Bigger and beyond original object

38. wavelength in string
Bigger and beyond original object
MRT
Irms=Imax/v2
?=2L/n

39. find energy in circuit
Charge remains constant
Virtual
E=Pt
?=m/v kg/m^3 g/ml g/cm^3

40. mass defect
Coulomb=amphere*sec
Energy gained by particle with charge of e when moved through one volt
U=1/2QV=1/2CV^2=1/2Q^2/C
Difference between the mass of nucleus and the sum of nucleons

41. splitting of white light in a prim is an example of...
Electric fields of all the light waves are oriented in the same direction
Conductor
R=pL/A
Dispersion

42. equation for capacitance with dielectric
Intensity
E=kQ/r^2
C=eoKA/D
More flow less resistance

43. formula for impulse (J)
J=Force*Time=mv - mvo=?p
No image is formed
?=4L/n
3

44. to find acceleration due to gravity
E=V/d
N is proportional to 1/?
Force a molecule of liquid feels toward the other molecules of the liquid
Derive universal gravitation equation

45. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
Q=mL
No net force acting on it
Gamma decay

46. What does atoms atomic weight represent
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Rate of doing work
Fluid resistance to flow
Weighted average of the masses of the element

47. nucleon
Proton or neutron
?=2L/n
V=?A
MRT

48. lever arm is halved what happens to torque
Constant for closed system independent of changes in area
Pressure to move - voltage when no charge is moving between 2 terminals
It is halved
2

49. thermal expansion of a solid
More rigid material
Substance is less dense then water
P=1/f
?L=aL?T

50. capacitors in parallel
Longitudinal
Vcos?
Ceq=C1+C2+C3 Veq=V1=V2=V3
Frequency