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. equation for v between two parallel plates
X=(initial horizontal v)(time in air)
F=E*A
Incident ray
V=ED

2. charge of gamma particles
Radiation
Frequency
None
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

3. under content acceleration v^2=
Vo^2+2a(?x)
Number of protons in nucleus
Image is always upright virtual and smaller
F=mv^2/r

4. sound waves are what kind of waves
A Calorie is a nutritional term equal to 1000 calories
Longitudinal
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3
Equilibrium position

5. total energy of spring system
2
Charge remains constant
When velocity of the fluid exceeds critical velocity
E=1/2k(A^2)

6. magnification=
Real inverted image
image/object
None
Beta=

7. (-) magnification signifies
J=Force*Time=mv - mvo=?p
Vot+1/2at^2=(V0+v/2)t
A Calorie is a nutritional term equal to 1000 calories
Inverted image

8. loudness of sound
Intensity
2pr
(1/2)?v^2
P=IV

9. unit for energy beside J
Radiation
F=Gm1m2/r^2
EV
Increase length increase resistance

10. closed pipe frequency
V=?A
??=nv/4L
Photon energy must be greater than work function of the material
N1>n2

11. units for viscosity
B=(F/A)/(?V/V)
N*s/m^2
Q=mc?t
Slower light will travel

12. circumference of a circle
2pr
P=IA
Beta=
Q=CV

13. force due to electric field on single charge
?=4L/n
Constant for closed system independent of changes in area
E=neE n is excess charge
No image is formed

14. 90
Sin=1 cos=0
Converted to extra kinetic energy of the emitted electron
U=(1/2)kx^2
Negative

15. threshold frequency (photoelectric effect)
Charge remains constant
Minimum frequency of light that will cause emission of an electron
Perpendicular to each other
?=2L/n

16. type of heat transfer involving transfer of energy by electromagnetic waves
Substance is more dense then water
V=kQ/r
Solid to gas
Radiation

17. buoyant force is due to...
P=m?v
Pascal (Pa) N/m^2
The liquid itself not the object
Q=mL

18. electromotive force
Surface
F=ma
Pressure to move - voltage when no charge is moving between 2 terminals
Negative

19. force experienced by moving charge traveling parallel or antiparallel to magnetic field
None
P=IA
Cohesion
When ?=90 b/c sin90=1

20. ?
Counterclockwise is + clockwise is -
Charge/length
Is equal to gravitational force
The liquid itself not the object

21. type of heat transfer involving the physical motion of heated material
Convection
Degree=p/180 radian
P=IV
M1v1=m2v2

22. equation for capacitance with dielectric
2
E*r
C=eoKA/D
P=1/f

23. under what conditions will light undergo total internal reflection
T=rFsin?
Zero resistance
Light travels from high n to lower n with an angle of incidence greater than the critical angle
W=Fdcos?

24. Hooke's Law
Holds whenever we have a change in energy ?E=?KE+?PE=0
Conduction
F=- kx
(Vo+v)/2

25. visible light wavelength
Spreading out of light as it passes through a narrow opening
Slower light will travel
Amount of energy required for phase change from solid to liquid
700nm -400nm

26. relate velocities and displacement 2 ways
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Conductor
Gamma decay
2pvm/k

27. formula for impulse (J)
When velocity of the fluid exceeds critical velocity
Hydrostatics
Solute whose solution is conductive
J=Force*Time=mv - mvo=?p

28. fungal cells unlike animals cells do not contain
Centrioles
Intensity
Vsin?
More flow less resistance

29. total horizontal distance traveled by projectile
Cohesion
Frequency
X=(initial horizontal v)(time in air)
N*s/m^2

30. continuity equation*
M1v1=m2v2
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
E=Pt
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

31. 'real' side of a lens
2 times the focal distance
None
Side opposite From which light originates
F=1/2(r)

32. dielectric material
B=(F/A)/(?V/V)
Will never decrease capacitance
Proton or neutron
K+U=constant

33. for photoelectric material to liberate an electron
E=V/d
R=pL/A
Photon energy must be greater than work function of the material
V=IR

34. calculate lens power
P=1/f
Perpendicular to each other
Beta=10Log(I/Io)
2pvm/k

35. (+) magnification signifies
N=c/v
Real inverted
Upright image
Substance is more dense then water

36. Formula for centripetal force
F=mv^2/r
Image is always upright virtual and smaller
1000 kg/m^3 or 1 g/cm^3
Amount of energy required for phase change from solid to liquid

37. electric field and magnetic field are...
Perpendicular to each other
Rate of doing work
F=Gm1m2/r^2
Ampere (1C/s)

38. velocity for a wave
W'=?E=?KE+?U
Convection
V=???
Virtual

39. power (in general)
Amount of energy required for phase change from solid to liquid
W=Fdcos?
Conduction
Work/time

40. what would a specific gravity of 1 indicate
Proton or neutron
Resistor
100% of the object will be submerged but will not sink
3a=Beta

41. to find acceleration due to gravity
Derive universal gravitation equation
Pressure to move - voltage when no charge is moving between 2 terminals
C=e(A/d)
N=c/v

42. 45
20 Hz to 20 -000 Hz
Sin=v2/2 cos=v2/2
Virtual
T=rF where F is proportional to mass and r is distance from pivot

43. charge on the plates of a capacitor
Q=CV
C=Q/V
C=eoKA/D
Mass number

44. magnetic field of solenoid
Virtual upright
E*r
B=
Pascal (Pa) N/m^2

45. electric work
700nm -400nm
E=kQ/r^2
Neutron is converted into a proton and an electron is emitted
U=q?v

46. bulk modulus
B=(F/A)/(?V/V)
?=m/v kg/m^3 g/ml g/cm^3
F=E*A
V=kq/r

47. suppose a block is floating in H2O - What does this mean
Protons+neutrons
Vsin?
Buoyant force equals blocks weight
V=kQ/r

48. work function
?=m/v kg/m^3 g/ml g/cm^3
Sin=1 cos=0
2pr
Energy required to free electron from given metal

49. voltage of AC
Vrms=Vmax/v2
???
Increases
Bigger and beyond original object

50. 30
Coulomb=amphere*sec
Sin=1/2 cos=v3/2
F=1/2(r)
?=4L/n