Test your basic knowledge |

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. image created when converging (concave) mirror when object is placed beyond focal point
Sin=0 cos=1
(1/2)?v^2
Real inverted image
Vot+1/2at^2=(V0+v/2)t

2. Electric Potential equation
P=i^2R=V^2/R=IV
Photon energy must be greater than work function of the material
Real inverted image
V=kQ/r

3. for object in SHM E=
Q=CV
Nsin?incident=nsin?refraction
Amount of energy required for phase change from solid to liquid
K+U=constant

4. Capacitors in series
Splitting of atomic nuclei
Frequency
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Fk=

5. when an electron absorbs a photon
It jumps to higher energy level
?=vk/m=2p??
Sin=0 cos=1
F=- F

6. increase in velocity of a fluid is associated with
Q=CV
B=
Decrease in pressure that fluid exerts on the walls of the container
Buoyant force equals blocks weight

7. threshold frequency (photoelectric effect)
0K -273
Current*voltage
Minimum frequency of light that will cause emission of an electron
Decrease in pressure that fluid exerts on the walls of the container

8. under constant acceleration - v=
Vo+at
Current*voltage
Vrms=Vmax/v2
Mass

9. What is an electron volt (eV)
Energy gained by particle with charge of e when moved through one volt
1000 kg/m^3 or 1 g/cm^3
Mass number
2

10. focal length
1/f=1/o+ 1/i
W=Fdcos?
Q=mL
Beta=

11. voltage of AC
P=i^2r
Vrms=Vmax/v2
More rigid material
Longitudinal

12. specific gravity greater than one
3a=Beta
It is halved
Splitting of atomic nuclei
Substance is more dense then water

13. ?
Charge/length
E=Pt
1/f=1/o+ 1/i
It jumps to higher energy level

14. max frequency of X- ray depends ONLY on...
Vo+at
Sin=1/2 cos=v3/2
Moving charge
Energy of electrons

15. Bernoulli's equation
Diopters
Spring constant
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
???

16. reflection law
Angle of incidence=angle of reflection
3
Yield strength
Beta=10Log(I/Io)

17. vertical velocity of projectile
Negative
B=(F/A)/(?V/V)
?=2L/n
Vsin?

18. only radioactive decay that conserves the nucleus charge
3a=Beta
Upright image
Emf is positive
Gamma decay

19. momentum
Wave speed
P=m?v
Frequency
U=(1/2)kx^2

20. dielectric material
Conductor
W=mg=?Vg
Will never decrease capacitance
1/f=1/o+ 1/i

21. relate charge and current
Fusion
Coulomb=amphere*sec
E=neE n is excess charge
Perpendicular to each other

22. closed pipe frequency
Dispersion
V=kq/r
??=nv/4L
U=1/2QV=1/2CV^2=1/2Q^2/C

23. under content acceleration v^2=
0K -273
N*s/m^2
Vo^2+2a(?x)
W=qv

24. dynamic pressure
Wave speed
(1/2)?v^2
Number of protons
Charge remains constant

25. adhesion
N=c/v
No image is formed
Force a molecule of liquid feels toward molecules of some other substance
The shortest wavelength

26. what creates a magnetic field
Moving charge
N*s/m^2
Irms=Imax/v2
Coulomb=amphere*sec

27. formula for solution which is diluted related to initial concentration
P=m?v
M1v1=m2v2
P=IV
0K -273

28. specific gravity is less than one
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Substance is less dense then water
J=Force*Time=mv - mvo=?p
F=q/e0

29. study of fluids at rest
Holds whenever we have a change in energy ?E=?KE+?PE=0
Ceq=C1+C2+C3 Veq=V1=V2=V3
Hydrostatics
X=(initial horizontal v)(time in air)

30. Newtons 2nd law of motion
F=ma
700nm -400nm
J=Force*Time=mv - mvo=?p
None

31. period of spring
2pvm/k
Fluid resistance to flow
N=c/v
Q=mc?t

32. formula for heat gained or lost during phase change
Q=mL
As speed of fluid increases pressure and potential energy decrease
F=mv^2/r
When in parallel

33. 30
Sin=1/2 cos=v3/2
Higher temperature increases resistance
Perpendicular to each other
(Vo+v)/2

34. a virtual image has what kind of image distance
When ?=90 b/c sin90=1
Real inverted
Negative
Light emitted due to heat

35. Find electric potential given electric field
Inverted image
Equilibrium position
It jumps to higher energy level
E*r

36. speed of sound in proportional to...
Charge/length
Force a molecule of liquid feels toward the other molecules of the liquid
Vbulk modulus
Amount of energy required for phase change from solid to liquid

37. sound waves are what kind of waves
Vo+at
V=kQ/r
Holds whenever we have a change in energy ?E=?KE+?PE=0
Longitudinal

38. units for viscosity
Virtual upright
N*s/m^2
?x=1/2(v+vo)t
Vrms=Vmax/v2

39. The bigger the cross - section of a resistor..
Real image
Emf is positive
More flow less resistance
??=nv/4L

40. boiling point of H2O in K and C
P=m?v
Angle of incidence=angle of reflection
373K 100
P=1/f

41. When does turbulence in a fluid arise
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Convection
When velocity of the fluid exceeds critical velocity
Vcos?

42. ideal ammeter
Convection
Splitting of atomic nuclei
Negative
Zero resistance

43. frequency of light given wavelength
F=c/?
W=mg=?Vg
U=1/2QV=1/2CV^2=1/2Q^2/C
???

44. cohesion
E*r
Photon energy must be greater than work function of the material
Force a molecule of liquid feels toward the other molecules of the liquid
???

45. v2/2
Approx .7
Constant for closed system independent of changes in area
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Spring constant

46. charge on the plates of a capacitor
Perpendicular to each other
Q=CV
Yield strength
V=IR

47. relate velocities and displacement 2 ways
When velocity of the fluid exceeds critical velocity
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Vrms=Vmax/v2
Angle of incidence=angle of reflection

48. stays constant when light travels through boundary
U=q?v
?=m/v kg/m^3 g/ml g/cm^3
P=IV
Frequency

49. electrical power
Dispersion
P=IV
C=e(A/d)
Higher temperature increases resistance

50. As current flows through a resistor
WATTS
Hydrostatics
Charge remains constant
C=e(A/d)