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. material with low resistance
None
Conductor
P=i^2r
Makes ?G more negative thus more spontaneous

2. type of image ALWAYS created by diverging (convex) mirror
N2>n1
F=- kx
???
Virtual upright smaller

3. mirror image is on same side as object
Real image
F=E*A
3
Req=R1+R2+R3 Veq=V1+V2+V3

4. angular frequency of spring ?
Approx .7
?=vk/m=2p??
Insulator
Virtual upright

5. equation for static friction
Intensity
Fs=
Dispersion
Zero resistance

6. energy of moving proton
1/2mv^2
Yield strength
F=E*A
MRT

7. kirchhoff's rule -- travel from positive to negative
Emf is negative
Derive universal gravitation equation
Longitudinal
Is equal to gravitational force

8. current of AC
Vcos?
Irms=Imax/v2
No image is formed
F=E*A

9. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
Difference between the mass of nucleus and the sum of nucleons
The liquid itself not the object
(Vo+v)/2

10. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=
P=i^2R=V^2/R=IV
Energy of electrons
Number of protons in nucleus

11. length of resistor
1/2mv^2
Fusion
Centrioles
Increase length increase resistance

12. parabolic mirror: image at focal point
V^2=vo^2+2a?x ?x=1/2(vo+v)t
No image is formed
Rate of doing work
V=ED

13. electric potential energy
P=i^2R=V^2/R=IV
U=QV
Mass number
Incident light is used to free electrons from a metal

14. light bends toward normal when
Charge remains constant
N2>n1
None
T=rF where F is proportional to mass and r is distance from pivot

15. a virtual image has what kind of image distance
Decrease in pressure that fluid exerts on the walls of the container
Negative
(Vo+v)/2
Zero resistance

16. object placed beyond focal point in converging lens create What type of image
V^2=vo^2+2a?x ?x=1/2(vo+v)t
When ?=90 b/c sin90=1
Frequency
Real inverted

17. frequency of spring is inversely proportional to...
P=m?v
0K -273
Vcos?
Mass

18. ideal ammeter
Zero resistance
Coulomb=amphere*sec
??=nv/4L
None

19. equation for v between two parallel plates
More flow less resistance
V=ED
None
0K -273

20. small moduli value
Points away from + and toward -
F=q/e0
Inverted image
More malleable material

21. for object in SHM E=
N2>n1
?V=BetaV?T
K+U=constant
2pr

22. work in electromagnetic field
?=4L/n
Frequency
W=qv
Charge/length

23. for photoelectric material to liberate an electron
Pressure to move - voltage when no charge is moving between 2 terminals
20 Hz to 20 -000 Hz
E=V/d
Photon energy must be greater than work function of the material

24. electrolyte
Holds whenever we have a change in energy ?E=?KE+?PE=0
Solute whose solution is conductive
Q=mL
Substance is more dense then water

25. large moduli value
More rigid material
?L=aL?T
Light emitted due to heat
?=2L/n

26. difference between Calorie and calorie
A Calorie is a nutritional term equal to 1000 calories
Intensity
2pr
V^2=vo^2+2a?x ?x=1/2(vo+v)t

27. velocity for a wave
T=1/f
V=???
Fs=
Yield strength

28. dynamic pressure
Sin=v2/2 cos=v2/2
4 Hz
E=Pt
(1/2)?v^2

29. mass defect
Zero resistance
N is proportional to 1/?
Difference between the mass of nucleus and the sum of nucleons
Convection

30. speed of sound in proportional to...
F=xk=mg
??=nv/4L
Vbulk modulus
V/??

31. speed of light in a vacuum (c) =
???
F=Gm1m2/r^2
100% of the object will be submerged but will not sink
373K 100

32. unit for energy beside J
Coulomb=amphere*sec
V=kq/r
EV
Number of protons in nucleus

33. point of shape change beyond which a material can go back to normal
Sin=1 cos=0
Charge remains constant
F=q/e0
Yield strength

34. sound waves are what kind of waves
Vrms=Vmax/v2
Longitudinal
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Virtual upright

35. power is defined as
Rate of doing work
Increases
Real inverted
Charge remains constant

36. find voltage (original)
Energy gained by particle with charge of e when moved through one volt
Virtual upright smaller
V=kq/r
1/2mv^2

37. under constant acceleration - two ways ?x=
Fluid resistance to flow
P=IV
Force and acceleration
Vot+1/2at^2=(V0+v/2)t

38. force experience by stationary particle in magnetic field
None
J=Force*Time=mv - mvo=?p
Pascal (Pa) N/m^2
F=I(L*B)

39. 'real' side of a lens
Zero resistance
Side opposite From which light originates
Q=CV
A=v^2/r

40. convex mirror
Image is always upright virtual and smaller
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Sin=1 cos=0
N=c/v

41. units for power of a lens
Wave speed
Buoyant force equals blocks weight
Insulator
Diopters

42. When is torque maximum
Amount of energy required for phase change from solid to liquid
Vrms=Vmax/v2
F/A
When ?=90 b/c sin90=1

43. under content acceleration v^2=
X=(initial horizontal v)(time in air)
Dispersion
Vo^2+2a(?x)
Slower light will travel

44. all harmonics have the same
Wave speed
?L=aL?T
Is equal to gravitational force
Q=CV

45. increasing emf has What effect on ?G
None
Makes ?G more negative thus more spontaneous
Side opposite From which light originates
Incident light is used to free electrons from a metal

46. (-) magnification signifies
V^2=vo^2+2a?x ?x=1/2(vo+v)t
373K 100
F=E*A
Inverted image

47. under constant acceleration - v=
Splitting of atomic nuclei
N=c/v
C=e(A/d)
Vo+at

48. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
Surface
Pressure to move - voltage when no charge is moving between 2 terminals
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

49. type of heat transfer involving direct transfer of energy from molecule to molecule through molecular collisions
Charge/length
Voltage
Resistor
Conduction

50. gravitational force formula
Difference between the absolute and atm pressure Pg=P- Patm
W=Fdcos?
N is proportional to 1/?
F=Gm1m2/r^2