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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
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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. absolute zero in K and C
Resistor
0K -273
Energy of electrons
R=pL/A

2. In what position does spring has its greatest speed
Equilibrium position
Sin=0 cos=1
The shortest wavelength
F=I(L*B)

3. torque formula
Force and acceleration
Neutron is converted into a proton and an electron is emitted
T=rFsin?
?x=1/2(v+vo)t

4. 0
Sin=0 cos=1
J=Force*Time=mv - mvo=?p
Charge remains constant
Is equal to gravitational force

5. Electric Potential equation
Energy of electrons
Internal resistance is zero voltage=emf
V=kQ/r
B=

6. When does turbulence in a fluid arise
U=(1/2)kx^2
E=Pt
When velocity of the fluid exceeds critical velocity
It jumps to higher energy level

7. image created by converging (concave) mirror when object is placed inside focal point
Virtual upright
Coulomb=amphere*sec
W'=?E=?KE+?U
Decrease in pressure that fluid exerts on the walls of the container

8. loudness of sound
N=c/v
E=Pt
Intensity
Surface

9. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
It is halved
Conduction
F=xk=mg
Energy required to free electron from given metal

10. Log(1000)=
M1v1=m2v2
Buoyant force equals blocks weight
Substance is more dense then water
3

11. Hooke's Law
T=rFsin?
F=- kx
4 Hz
W=Fdcos?

12. a in isotopic notation
T=rFsin?
Rate of doing work
Approx .7
Mass number

13. charge of beta particles
3
(mass defect)(speed of light)^2
Negative
0K -273

14. electric flux
A=v^2/r
Charge/length
F=E*A
F=Gm1m2/r^2

15. power (in general)
Sin=1 cos=0
F=mv^2/r
Work/time
Farad 1 F= 1 c/v

16. -Beta- decay
Pascal (Pa) N/m^2
Neutron is converted into a proton and an electron is emitted
W'=?E=?KE+?U
I=P/A

17. visible light wavelength
Mass
Constant for closed system independent of changes in area
700nm -400nm
P=i^2r

18. wavelength in string
Incident light is used to free electrons from a metal
373K 100
M1v1=m2v2
?=2L/n

19. electric field maximum of insulating sphere
X=(initial horizontal v)(time in air)
Force a molecule of liquid feels toward molecules of some other substance
Photon energy must be greater than work function of the material
Surface

20. mass defect
Difference between the mass of nucleus and the sum of nucleons
MRT
Body in motion remains in motion unless net force acts upon it
B=

21. large moduli value
P=i^2R=V^2/R=IV
Vo+at
K+U=constant
More rigid material

22. negative charge moves spontaneously from
Low voltage to high voltage
Spreading out of light as it passes through a narrow opening
Diopters
No image is formed

23. sound level
P=m?v
Beta=10Log(I/Io)
F=r/2
F=I(L*B)

24. under constant acceleration - two ways ?x=
Gamma decay
V=ED
Fk=
Vot+1/2at^2=(V0+v/2)t

25. what creates a magnetic field
Moving charge
J=Force*Time=mv - mvo=?p
F=c/?
Sin=v2/2 cos=v2/2

26. kirchhoff's rule -- travel from negative to positive
Virtual upright
Frequency
Emf is positive
Pascal (Pa) N/m^2

27. incandescence
N*s/m^2
Resistor
P=i^2r
Light emitted due to heat

28. body in translational equilibrium
W=Fdcos?
Holds whenever we have a change in energy ?E=?KE+?PE=0
Splitting of atomic nuclei
No net force acting on it

29. photoelectric effect
(Vo+v)/2
Force a molecule of liquid feels toward molecules of some other substance
Photon energy must be greater than work function of the material
Incident light is used to free electrons from a metal

30. continuity equation*
T=rFsin?
Gamma decay
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Vrms=Vmax/v2

31. nucleon
Increases
Proton or neutron
F=1/2(r)
Current*voltage

32. SI unit for pressure
Pascal (Pa) N/m^2
Sin=v2/2 cos=v2/2
Intensity
Vsin?

33. relate focal length and radius of curvature(r)
Weighted average of the masses of the element
V=kq/r
F=r/2
Bigger and beyond original object

34. energy of photon
P=IV
E=???=hc/?
Dispersion
Constant for closed system independent of changes in area

35. sublimation
Force a molecule of liquid feels toward molecules of some other substance
F=ma
Solid to gas
Derive universal gravitation equation

36. unit for energy beside J
EV
Vbulk modulus
2pr
Sin=0 cos=1

37. excess energy of a photon is...
V=kq/r
Mass number
Converted to extra kinetic energy of the emitted electron
V=?A

38. charge on the plates of a capacitor
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Pascal (Pa) N/m^2
Sin=0 cos=-1
Q=CV

39. speed of light in a vacuum (c) =
Number of protons
???
Light emitted due to heat
Gamma decay

40. find energy in circuit
MRT
Surface
B=(F/A)/(?V/V)
E=Pt

41. snell's law derivative
Pascal (Pa) N/m^2
P=i^2R=V^2/R=IV
Degree=p/180 radian
N is proportional to 1/?

42. angular frequency of spring ?
No net force acting on it
?=vk/m=2p??
Internal resistance is zero voltage=emf
Number of protons

43. equation for capacitance with dielectric
?=4L/n
None
C=eoKA/D
E=???=hc/?

44. mirror image is on same side as object
Real image
More malleable material
0K -273
Real inverted

45. boiling point of H2O in K and C
373K 100
Counterclockwise is + clockwise is -
None
I=?q/?t

46. magnetic field is created by loop wire - What is magnetic field at center of loop
Electric fields of all the light waves are oriented in the same direction
Real image
Longitudinal
Beta=

47. Find electric potential given electric field
Incident light is used to free electrons from a metal
E*r
Sin=1/2 cos=v3/2
Substance is less dense then water

48. 180
Fnet=0 thus Fg=Fs mg=kx
Low voltage to high voltage
Q=mL
Sin=0 cos=-1

49. larger the index of refraction..
Slower light will travel
Number of protons
More flow less resistance
Substance is less dense then water

50. thermal expansion of a solid
Q=CV
Zero resistance
Constant for closed system independent of changes in area
?L=aL?T