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. specific gravity is less than one
Photon energy must be greater than work function of the material
Substance is less dense then water
Spring constant
Coulomb=amphere*sec

2. Ohm's Law
?x=1/2(v+vo)t
Vcos?
V=IR
E=neE n is excess charge

3. speed of the spring
U=q?v
T=rF where F is proportional to mass and r is distance from pivot
V=?A
V=???

4. torque is given by
F=I(L*B)
T=1/f
F/A
T=rF where F is proportional to mass and r is distance from pivot

5. When is torque maximum
The shortest wavelength
When ?=90 b/c sin90=1
Amount of energy required for phase change from solid to liquid
Difference between the mass of nucleus and the sum of nucleons

6. point of shape change beyond which a material can go back to normal
Wave speed
Yield strength
Electric fields of all the light waves are oriented in the same direction
Surface

7. type of image ALWAYS created by diverging (convex) mirror
W'=?E=?KE+?U
It jumps to higher energy level
700nm -400nm
Virtual upright smaller

8. Gauss's Law
E=neE n is excess charge
F=q/e0
Vbulk modulus
2pr

9. determine spring constant
F=xk=mg
V=???
Vcos?
20 Hz to 20 -000 Hz

10. 60
V=IR
Ceq=C1+C2+C3 Veq=V1=V2=V3
P=IA
Sin=v3/2 cos=1/2

11. frequency in string
Hydrostatics
F=nv/2L
Fluid resistance to flow
N=c/v

12. all harmonics have the same
Wave speed
Holds whenever we have a change in energy ?E=?KE+?PE=0
Derive universal gravitation equation
Fnet=0 thus Fg=Fs mg=kx

13. magnitude of magnetic field for current carrying wire
Beta=
273K 0
Sin=0 cos=1
???

14. equation for capacitance with dielectric
???
F=xk=mg
C=eoKA/D
No net force acting on it

15. snells law
Nsin?incident=nsin?refraction
2pr
E=neE n is excess charge
Intensity

16. 90
Sin=1 cos=0
F=nv/2L
P=i^2R=V^2/R=IV
U=QV

17. kirchhoff's rule -- travel from negative to positive
Weighted average of the masses of the element
Emf is positive
Energy of electrons
E=Pt

18. Bernoulli's equation
F=qvBetasin?
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
EV
?x=1/2(v+vo)t

19. when spring is at rest
Equilibrium position
F=r/2
Fnet=0 thus Fg=Fs mg=kx
Holds whenever we have a change in energy ?E=?KE+?PE=0

20. current of AC
X=(initial horizontal v)(time in air)
Irms=Imax/v2
???
E=???=hc/?

21. resistance equation
R=pL/A
W=Fdcos?
N=c/v
V=ED

22. relate charge and current
Emf is negative
Charge remains constant
Coulomb=amphere*sec
?=2L/n

23. max frequency of X- ray depends ONLY on...
F=I(L*B)
Light travels from high n to lower n with an angle of incidence greater than the critical angle
(1/2)?v^2
Energy of electrons

24. type of heat transfer involving the physical motion of heated material
N is proportional to 1/?
Convection
Vo+at
?=4L/n

25. speed of sound in proportional to...
3a=Beta
Zero resistance
Vbulk modulus
Frequency

26. surface tension results from
Mass number
E=???=hc/?
Difference between the absolute and atm pressure Pg=P- Patm
Cohesion

27. charge of gamma particles
C=eoKA/D
Dispersion
Nsin?incident=nsin?refraction
None

28. total energy of spring system
E=1/2k(A^2)
Sin=v3/2 cos=1/2
P=m?v
Beta=

29. gravitational force formula
Number of protons
F=Gm1m2/r^2
F=r/2
F=c/?

30. electrolyte
Vsin?
Sin=1 cos=0
Solute whose solution is conductive
A=v^2/r

31. buoyant force is due to...
Vbulk modulus
T=rF where F is proportional to mass and r is distance from pivot
The liquid itself not the object
W=Fdcos?

32. light ray that strikes a surface
Yield strength
???
Centrioles
Incident ray

33. potential energy of spring
U=(1/2)kx^2
Frequency
?=vk/m=2p??
373K 100

34. find energy in circuit
The shortest wavelength
Sin=1 cos=0
Req=R1+R2+R3 Veq=V1+V2+V3
E=Pt

35. sublimation
Solid to gas
I=P/A
W=qv
(1/2)?v^2

36. audible wave frequency
20 Hz to 20 -000 Hz
?=4L/n
F=qvBetasin?
Splitting of atomic nuclei

37. equation for v between two parallel plates
V=ED
E=V/d
As speed of fluid increases pressure and potential energy decrease
F=xk=mg

38. image created by converging (concave) mirror when object is placed inside focal point
Virtual upright
F=qvBetasin?
Charge remains constant
B=(F/A)/(?V/V)

39. Log(1000)=
MRT
W=Fdcos?
F=E*A
3

40. tone with shortest period has
No image is formed
Decrease in pressure that fluid exerts on the walls of the container
The shortest wavelength
WATTS

41. shear
Substance is less dense then water
Q=mc?t
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Force applied parallel to objects surface

42. only radioactive decay that conserves the nucleus charge
100% of the object will be submerged but will not sink
Gamma decay
Minimum frequency of light that will cause emission of an electron
Negative

43. 180
Sin=0 cos=-1
2pvL/g
B=(F/A)/(?V/V)
Force and acceleration

44. horizontal velocity of projectile
Vcos?
No net force acting on it
B=(F/A)/(?V/V)
F/A

45. frequency of spring is inversely proportional to...
Zero resistance
Mass
No image is formed
Vot+1/2at^2=(V0+v/2)t

46. unit of current
Ampere (1C/s)
W'=?E=?KE+?U
?=vk/m=2p??
??=nv/4L

47. torque formula
Difference between the mass of nucleus and the sum of nucleons
V/??
T=rFsin?
(Vo+v)/2

48. parabolic mirror: image at focal point
Fs=
F=1/2(r)
Minimum frequency of light that will cause emission of an electron
No image is formed

49. capacitance of simple parallel plate (not according to Ohms)
C=e(A/d)
T=rF where F is proportional to mass and r is distance from pivot
Ceq=C1+C2+C3 Veq=V1=V2=V3
Fusion

50. type of heat transfer involving transfer of energy by electromagnetic waves
B=
Mass
Radiation
F1/A1=F2/A2