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. work done by non conservative force

2. object placed inside focal point in converging lens create What type of image
1/2mv^2
4 Hz
Virtual upright
E=???=hc/?

3. charge on the plates of a capacitor
Intensity
Nsin?incident=nsin?refraction
The liquid itself not the object
Q=CV

4. length of resistor
Increase length increase resistance
B=(F/A)/(?V/V)
Higher temperature increases resistance
When velocity of the fluid exceeds critical velocity

5. magnetic field force on current carrying wire
Vsin?
Pressure to move - voltage when no charge is moving between 2 terminals
Ceq=C1+C2+C3 Veq=V1=V2=V3
F=I(L*B)

6. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
V=???
Dispersion
Substance is more dense then water

7. energy of photon
image/object
F=r/2
E=???=hc/?
Fk=

8. light bends toward normal when
Beta=10Log(I/Io)
C=eoKA/D
It jumps to higher energy level
N2>n1

9. polarized light
V=kQ/r
Number of protons in nucleus
Fusion
Electric fields of all the light waves are oriented in the same direction

10. density with units
Minimum frequency of light that will cause emission of an electron
F=1/2(r)
V^2=vo^2+2a?x ?x=1/2(vo+v)t
?=m/v kg/m^3 g/ml g/cm^3

11. surface tension results from
Cohesion
(mass defect)(speed of light)^2
Derive universal gravitation equation
Proton or neutron

12. 90
2 times the focal distance
Sin=1 cos=0
Energy of electrons
(Vo+v)/2

13. period (T) and frequency (f) of a tone are related by
K+U=constant
T=1/f
Longitudinal
Resistor

14. unit of current
E=Pt
?=2L/n
?L=aL?T
Ampere (1C/s)

15. weight
1/f=1/o+ 1/i
Virtual
Substance is less dense then water
W=mg=?Vg

16. formula for solution which is diluted related to initial concentration
W=Fdcos?
M1v1=m2v2
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Moving charge

17. shear
Emf is positive
image/object
2pvL/g
Force applied parallel to objects surface

18. all harmonics have the same
Virtual upright
Wave speed
Difference between the mass of nucleus and the sum of nucleons
Angle of incidence=angle of reflection

19. in calculating torque - which direction is + and which is
Increase length increase resistance
When ?=90 b/c sin90=1
P=i^2r
Counterclockwise is + clockwise is -

20. parabolic mirror: image at focal point
Virtual
Solute whose solution is conductive
No image is formed
Fusion

21. thermal expansion of a solid
4 Hz
P=i^2R=V^2/R=IV
?L=aL?T
Force and acceleration

22. electric potential energy
Wave speed
?x=1/2(v+vo)t
Proton or neutron
U=QV

23. sound waves are what kind of waves
N=c/v
Q=mc?t
Longitudinal
None

24. light bends away from normal when
N1>n2
Energy required to free electron from given metal
Charge/length
T=1/f

25. What is heat of fusion
Photon energy must be greater than work function of the material
Amount of energy required for phase change from solid to liquid
Number of protons
F=nv/2L

26. difference between Calorie and calorie
F=I(L*B)
?=4L/n
A Calorie is a nutritional term equal to 1000 calories
Force a molecule of liquid feels toward molecules of some other substance

27. charge of beta particles
A Calorie is a nutritional term equal to 1000 calories
Minimum frequency of light that will cause emission of an electron
Negative
Vot+1/2at^2=(V0+v/2)t

28. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
Emf is negative
?=vk/m=2p??
E=Pt

29. what creates a magnetic field
Moving charge
Higher temperature increases resistance
Weighted average of the masses of the element
F=- kx

30. equation for static friction
F=r/2
(1/2)?v^2
373K 100
Fs=

31. under constant acceleration - v=
F=qvBetasin?
No image is formed
Conductor
Vo+at

32. electric work
Ampere (1C/s)
Incident ray
Gamma decay
U=q?v

33. Newtons 3rd law of motion
Protons+neutrons
F=- F
Virtual upright smaller
2

34. across capacitor what remains constant
Angle of incidence=angle of reflection
Voltage
I=P/A
Internal resistance is zero voltage=emf

35. torque is given by
V=?A
Hydrostatics
Difference between the absolute and atm pressure Pg=P- Patm
T=rF where F is proportional to mass and r is distance from pivot

36. units for newtons
Energy of electrons
Spreading out of light as it passes through a narrow opening
Perpendicular to each other
Kg*m/s^2

37. fission
?=2L/n
I=P/A
Insulator
Splitting of atomic nuclei

38. atomic mass number represents
T=1/f
Counterclockwise is + clockwise is -
Protons+neutrons
Upright image

39. convex mirror
Amount of energy required for phase change from solid to liquid
Image is always upright virtual and smaller
Gamma decay
Irms=Imax/v2

40. material with low resistance
Conductor
Vrms=Vmax/v2
W=mg=?Vg
Sin=0 cos=-1

41. frequency in string
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Surface
F=nv/2L
Will never decrease capacitance

42. electric field of parallel plate capacitor
Pressure to move - voltage when no charge is moving between 2 terminals
Beta=10Log(I/Io)
E=V/d
Wave speed

43. Hooke's Law
F=- kx
?=2L/n
Virtual upright smaller
Ceq=C1+C2+C3 Veq=V1=V2=V3

44. Gauss's Law
E=neE n is excess charge
F=q/e0
Slower light will travel
X=(initial horizontal v)(time in air)

45. Bernoulli's equation
The liquid itself not the object
2
(1/2)?v^2
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2

46. relate focal length and radius of curvature(r)
???
Y=(F/A)/(?L/L) stress over strain
F=r/2
Perpendicular to each other

47. electric flux
Intensity
E=kQ/r^2
Angle of incidence=angle of reflection
F=E*A

48. focal length
1/f=1/o+ 1/i
Negative
P=IA
Incident light is used to free electrons from a metal

49. find power in circuit
Gas to solid
373K 100
Current*voltage
Zero resistance

50. energy stored in capacitor
U=1/2QV=1/2CV^2=1/2Q^2/C
C=Q/V
Upright image
Angle of incidence=angle of reflection