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. under constant acceleration - two ways ?x=
700nm -400nm
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Vot+1/2at^2=(V0+v/2)t
P=i^2R=V^2/R=IV

2. specific gravity is less than one
Substance is less dense then water
V=?A
Angle of incidence=angle of reflection
Internal resistance is zero voltage=emf

3. mass defect
N1>n2
Resistor
As speed of fluid increases pressure and potential energy decrease
Difference between the mass of nucleus and the sum of nucleons

4. location of minima in diffraction pattern
Image is always upright virtual and smaller
F=xk=mg
A sin?=n?
T=1/f

5. object placed beyond focal point in converging lens create What type of image
Real inverted
Emf is negative
Sin=0 cos=-1
Energy required to free electron from given metal

6. 60
Internal resistance is zero voltage=emf
Insulator
Sin=v3/2 cos=1/2
Work/time

7. to find acceleration due to gravity
Difference between the absolute and atm pressure Pg=P- Patm
Nsin?incident=nsin?refraction
U=q?v
Derive universal gravitation equation

8. electric field and magnetic field are...
Perpendicular to each other
W=mg=?Vg
273K 0
?L=aL?T

9. find energy in circuit
E=Pt
Neutron is converted into a proton and an electron is emitted
4 Hz
W=mg=?Vg

10. center of curvature is...
2 times the focal distance
Ampere (1C/s)
Hydrostatics
Points away from + and toward -

11. power is defined as
Beta=
P=IA
Rate of doing work
Beta=

12. unit for energy beside J
Radiation
N2>n1
Virtual upright
EV

13. electromotive force
V=ED
Side opposite From which light originates
Pressure to move - voltage when no charge is moving between 2 terminals
Splitting of atomic nuclei

14. calculate binding energy
E=V/d
2
(mass defect)(speed of light)^2
Will never decrease capacitance

15. absolute zero in K and C
More malleable material
Will never decrease capacitance
0K -273
(1/2)?v^2

16. power dissipated by resistor (3 ways)
Farad 1 F= 1 c/v
P=i^2R=V^2/R=IV
Approx .7
Energy gained by particle with charge of e when moved through one volt

17. object placed inside focal point in converging lens create What type of image
V=?A
Virtual upright
Real image
U=QV

18. energy of moving proton
1/2mv^2
Electric fields of all the light waves are oriented in the same direction
F=- F
U=(1/2)kx^2

19. electric field equation
Constant for closed system independent of changes in area
E=kQ/r^2
MRT
(1/2)?v^2

20. Electric Potential equation
2pvm/k
U=1/2QV=1/2CV^2=1/2Q^2/C
V=kQ/r
4 Hz

21. for photoelectric material to liberate an electron
The shortest wavelength
2pvL/g
F1/A1=F2/A2
Photon energy must be greater than work function of the material

22. snells law
Nsin?incident=nsin?refraction
?x=1/2(v+vo)t
Internal resistance is zero voltage=emf
1/2mv^2

23. beat frequencies for two frequencies differing by 4 Hz
1/2mv^2
Counterclockwise is + clockwise is -
P=IV
4 Hz

24. work as product of pressure and volume change
F=ma
F1/A1=F2/A2
U=(1/2)kx^2
Force a molecule of liquid feels toward molecules of some other substance

25. Newtons 2nd law of motion
1/f=1/o+ 1/i
T=rFsin?
Substance is less dense then water
F=ma

26. In what position does spring has its greatest speed
Spreading out of light as it passes through a narrow opening
Surface
?V=BetaV?T
Equilibrium position

27. adhesion
Holds whenever we have a change in energy ?E=?KE+?PE=0
Upright image
Force a molecule of liquid feels toward molecules of some other substance
Solid to gas

28. negative charge moves spontaneously from
Low voltage to high voltage
More flow less resistance
F=c/?
T=rF where F is proportional to mass and r is distance from pivot

29. osmotic pressure formula
V=?A
Convection
MRT
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

30. deposition
Sin=0 cos=1
Gas to solid
Buoyant force equals blocks weight
It is halved

31. 'real' side of a lens
More flow less resistance
Fusion
A Calorie is a nutritional term equal to 1000 calories
Side opposite From which light originates

32. mirror image is on same side as object
Intensity
Real image
Resistor
Substance is more dense then water

33. all harmonics have the same
Wave speed
(1/2)?v^2
B=
Charge remains constant

34. parabolic mirror: image at focal point
Energy of electrons
No image is formed
Number of protons
T=rFsin?

35. horizontal velocity of projectile
Vcos?
Vo+at
Amount of energy required for phase change from solid to liquid
Fluid resistance to flow

36. planet orbiting a star - centripetal force
Counterclockwise is + clockwise is -
Is equal to gravitational force
Work/time
P=m?v

37. dynamic pressure
(1/2)?v^2
Hydrostatics
2pvm/k
Beta=

38. audible wave frequency
Angle of incidence=angle of reflection
20 Hz to 20 -000 Hz
W=mg=?Vg
V=ED

39. determine spring constant
F=xk=mg
No image is formed
V^2=vo^2+2a?x ?x=1/2(vo+v)t
?L=aL?T

40. body in translational equilibrium
?=4L/n
Increases
F=xk=mg
No net force acting on it

41. Find electric potential given electric field
Convection
Fluid resistance to flow
E*r
Fs=

42. ?
Charge/length
N2>n1
?=2L/n
Req=R1+R2+R3 Veq=V1+V2+V3

43. wave velocity=
???
N*s/m^2
Mass
Sin=0 cos=1

44. s
More flow less resistance
Charge/area
Is equal to gravitational force
Sin=1/2 cos=v3/2

45. Ohm's Law
V=IR
N=c/v
C=eoKA/D
2 times the focal distance

46. atomic mass number represents
Substance is more dense then water
Diopters
Protons+neutrons
A=v^2/r

47. light ray that strikes a surface
Nsin?incident=nsin?refraction
Equilibrium position
Incident ray
Minimum frequency of light that will cause emission of an electron

48. under content acceleration v^2=
F=I(L*B)
Vo^2+2a(?x)
V/??
Proton or neutron

49. process of combing smaller nuclei to create larger nuclei
Virtual upright smaller
Fusion
Light travels from high n to lower n with an angle of incidence greater than the critical angle
X=(initial horizontal v)(time in air)

50. energy of photon
Charge/area
Energy gained by particle with charge of e when moved through one volt
E=???=hc/?
E*r