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. energy stored in capacitor
No net force acting on it
E=Pt
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
U=1/2QV=1/2CV^2=1/2Q^2/C

2. electrolyte
None
I=?q/?t
It jumps to higher energy level
Solute whose solution is conductive

3. When is voltage constant across capacitors
E=V/d
20 Hz to 20 -000 Hz
Hydrostatics
When in parallel

4. period (T) and frequency (f) of a tone are related by
T=1/f
M1v1=m2v2
Beta=10Log(I/Io)
Substance is less dense then water

5. (+) magnification signifies
Upright image
E=Pt
Electric fields of all the light waves are oriented in the same direction
?=2L/n

6. angular frequency of spring ?
Pressure to move - voltage when no charge is moving between 2 terminals
Substance is less dense then water
Emf is positive
?=vk/m=2p??

7. light bends toward normal when
W'=?E=?KE+?U
1000 kg/m^3 or 1 g/cm^3
Real inverted
N2>n1

8. power is defined as
Force applied parallel to objects surface
Negative
Rate of doing work
Image is always upright virtual and smaller

9. volumetric rate of flow (property)
Constant for closed system independent of changes in area
Negative
A=v^2/r
Electric fields of all the light waves are oriented in the same direction

10. diffraction
T=1/f
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Constant for closed system independent of changes in area
Spreading out of light as it passes through a narrow opening

11. planet orbiting a star - centripetal force
Is equal to gravitational force
Emf is negative
P=1/f
Bigger and beyond original object

12. magnetic force
F=qvBetasin?
Force a molecule of liquid feels toward molecules of some other substance
Buoyant force equals blocks weight
Vot+1/2at^2=(V0+v/2)t

13. work in electromagnetic field
W=qv
X=(initial horizontal v)(time in air)
Fusion
Higher temperature increases resistance

14. calculate binding energy
Fnet=0 thus Fg=Fs mg=kx
W'=?E=?KE+?U
(mass defect)(speed of light)^2
Sin=0 cos=1

15. electric field and magnetic field are...
Centrioles
Perpendicular to each other
Y=(F/A)/(?L/L) stress over strain
N*s/m^2

16. magnitude of magnetic field for current carrying wire
K+U=constant
Substance is more dense then water
B=
Beta=

17. loudness of sound
Negative
Centrioles
0K -273
Intensity

18. under content acceleration v^2=
Difference between the absolute and atm pressure Pg=P- Patm
Diopters
Vo^2+2a(?x)
P=i^2R=V^2/R=IV

19. capacitors in parallel
P=1/f
Spring constant
Zero resistance
Ceq=C1+C2+C3 Veq=V1=V2=V3

20. polarized light
Vrms=Vmax/v2
Virtual upright
The shortest wavelength
Electric fields of all the light waves are oriented in the same direction

21. What is displacement equation
?x=1/2(v+vo)t
Bigger and beyond original object
N is proportional to 1/?
Nsin?incident=nsin?refraction

22. open pipe frequency
Amount of energy required for phase change from solid to liquid
None
3
F=nv/2L

23. threshold frequency (photoelectric effect)
Perpendicular to each other
E*r
M1v1=m2v2
Minimum frequency of light that will cause emission of an electron

24. centripetal acceleration
None
A=v^2/r
Work/time
?=2L/n

25. a virtual image has what kind of image distance
?=vk/m=2p??
Negative
W'=?E=?KE+?U
Upright image

26. velocity for a wave
B=
The liquid itself not the object
V=?A
V=???

27. when spring is at rest
More malleable material
Conduction
Fnet=0 thus Fg=Fs mg=kx
image/object

28. resistance in series
Req=R1+R2+R3 Veq=V1+V2+V3
Emf is positive
Substance is more dense then water
When in parallel

29. mass defect
F=- F
I=?q/?t
Difference between the mass of nucleus and the sum of nucleons
Angle of incidence=angle of reflection

30. units for power
Surface
Virtual
Irms=Imax/v2
WATTS

31. type of image ALWAYS created by diverging (convex) mirror
E=kQ/r^2
Virtual upright smaller
Increase length increase resistance
Charge remains constant

32. Newtons 2nd law of motion
Centrioles
V=?A
F=ma
It is halved

33. audible wave frequency
20 Hz to 20 -000 Hz
EV
Rate of doing work
Gamma decay

34. find energy in circuit
Q=mL
E=Pt
Body in motion remains in motion unless net force acts upon it
F=q/e0

35. photoelectric effect
Incident light is used to free electrons from a metal
Solid to gas
Constant for closed system independent of changes in area
Real image

36. density with units
F/A
Emf is positive
More rigid material
?=m/v kg/m^3 g/ml g/cm^3

37. 60
Fusion
Sin=v3/2 cos=1/2
Real image
F=nv/2L

38. density of water
Converted to extra kinetic energy of the emitted electron
1000 kg/m^3 or 1 g/cm^3
A sin?=n?
V=kQ/r

39. 45
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Sin=v2/2 cos=v2/2
Vbulk modulus
Difference between the absolute and atm pressure Pg=P- Patm

40. equation for kinetic friction
Pascal (Pa) N/m^2
Fk=
Will never decrease capacitance
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

41. adhesion
Force a molecule of liquid feels toward molecules of some other substance
M1v1=m2v2
U=(1/2)kx^2
U=q?v

42. nucleon
Proton or neutron
I=P/A
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Upright image

43. study of fluids at rest
Will never decrease capacitance
F=E*A
R=pL/A
Hydrostatics

44. object placed beyond focal point in converging lens create What type of image
Low voltage to high voltage
E=V/d
F/A
Real inverted

45. What is an electron volt (eV)
W=mg=?Vg
Energy gained by particle with charge of e when moved through one volt
2
V/??

46. energy of photon
E=???=hc/?
Insulator
Work/time
N2>n1

47. all harmonics have the same
Wave speed
Degree=p/180 radian
Nsin?incident=nsin?refraction
I=?q/?t

48. sound level
?=2L/n
Diopters
Beta=10Log(I/Io)
Increase length increase resistance

49. 30
T=1/f
K+U=constant
?L=aL?T
Sin=1/2 cos=v3/2

50. bulk modulus
V=kQ/r
2 times the focal distance
B=(F/A)/(?V/V)
?=2L/n