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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. planet orbiting a star - centripetal force
V=?A
Is equal to gravitational force
F=E*A
Body in motion remains in motion unless net force acts upon it

2. absolute zero in K and C
F=mv^2/r
Pascal (Pa) N/m^2
EV
0K -273

3. light ray that strikes a surface
Incident ray
F1/A1=F2/A2
E=V/d
W=mg=?Vg

4. material with very high resistance
Insulator
Neutron is converted into a proton and an electron is emitted
Charge/length
As speed of fluid increases pressure and potential energy decrease

5. When is voltage constant across capacitors
Q=mL
Sin=v3/2 cos=1/2
Virtual upright
When in parallel

6. object placed inside focal point in converging lens create What type of image
Protons+neutrons
Frequency
Increase length increase resistance
Virtual upright

7. electric field maximum of insulating sphere
Perpendicular to each other
Incident light is used to free electrons from a metal
Photon energy must be greater than work function of the material
Surface

8. 45
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Sin=v2/2 cos=v2/2
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
2

9. plane mirrors create What type of image
Body in motion remains in motion unless net force acts upon it
U=q?v
Angle of incidence=angle of reflection
Virtual

10. conservation of energy law
Pascal (Pa) N/m^2
Internal resistance is zero voltage=emf
Minimum frequency of light that will cause emission of an electron
Holds whenever we have a change in energy ?E=?KE+?PE=0

11. find factor by which something has been changed
B=(F/A)/(?V/V)
F=ma
New/old
Moving charge

12. units for capacitance
image/object
More malleable material
Farad 1 F= 1 c/v
F=nv/2L

13. solves for power lost during transmission (one way)
Convection
Sin=0 cos=1
Ampere (1C/s)
P=i^2r

14. resistance in series
Moving charge
E=V/d
Spring constant
Req=R1+R2+R3 Veq=V1+V2+V3

15. nucleon
Beta=
Emf is positive
Proton or neutron
F=mv^2/r

16. in calculating torque - which direction is + and which is
Fusion
The liquid itself not the object
Convection
Counterclockwise is + clockwise is -

17. fungal cells unlike animals cells do not contain
F=- kx
Perpendicular to each other
Photon energy must be greater than work function of the material
Centrioles

18. surface tension results from
C=e(A/d)
Rate of doing work
Vcos?
Cohesion

19. energy of photon
U=1/2QV=1/2CV^2=1/2Q^2/C
E=???=hc/?
?=2L/n
Charge/length

20. total horizontal distance traveled by projectile
Rate of doing work
X=(initial horizontal v)(time in air)
F=- F
When in parallel

21. find power in circuit
Q=CV
2pvL/g
A=v^2/r
Current*voltage

22. light bends away from normal when
It jumps to higher energy level
N1>n2
Beta=
(1/2)?v^2

23. material with low resistance
Conductor
Dispersion
V=?A
Longitudinal

24. power of sound wave
Real inverted
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
P=IA
Force a molecule of liquid feels toward molecules of some other substance

25. work in electromagnetic field
1/f=1/o+ 1/i
V=kQ/r
The liquid itself not the object
W=qv

26. vertical velocity of projectile
Vsin?
Resistor
F=1/2(r)
?V=BetaV?T

27. 0
Angle of incidence=angle of reflection
Sin=0 cos=1
A=v^2/r
Fs=

28. specific gravity is less than one
J=Force*Time=mv - mvo=?p
The shortest wavelength
Substance is less dense then water
Y=(F/A)/(?L/L) stress over strain

29. closed pipe wavelength
N2>n1
F=1/2(r)
X=(initial horizontal v)(time in air)
?=4L/n

30. gravitational force formula
F=Gm1m2/r^2
Real inverted
W=Fdcos?
2pvL/g

31. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
Convection
Work/time
Upright image

32. what creates a magnetic field
P=i^2R=V^2/R=IV
N2>n1
Moving charge
When ?=90 b/c sin90=1

33. Bernoulli's equation
Resistor
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
700nm -400nm
Coulomb=amphere*sec

34. type of image ALWAYS created by diverging (convex) mirror
Virtual upright smaller
???
V^2=vo^2+2a?x ?x=1/2(vo+v)t
B=(F/A)/(?V/V)

35. capacitance equation in circuit
C=Q/V
Cohesion
Vbulk modulus
Frequency

36. find voltage (original)
100% of the object will be submerged but will not sink
Electric fields of all the light waves are oriented in the same direction
V=kq/r
Vo+at

37. frequency of light given wavelength
F=c/?
V=kQ/r
E=neE n is excess charge
Substance is more dense then water

38. magnetic field of solenoid
B=
1000 kg/m^3 or 1 g/cm^3
E=1/2k(A^2)
C=e(A/d)

39. polarized light
Electric fields of all the light waves are oriented in the same direction
Longitudinal
N is proportional to 1/?
Difference between the mass of nucleus and the sum of nucleons

40. incandescence
P=IA
Amount of energy required for phase change from solid to liquid
New/old
Light emitted due to heat

41. charge on the plates of a capacitor
Convection
Q=CV
A=v^2/r
Req=R1+R2+R3 Veq=V1+V2+V3

42. kirchhoff's rule -- travel from positive to negative
?L=aL?T
Real inverted image
Emf is negative
E=Pt

43. units for power
WATTS
Dispersion
?V=BetaV?T
V=???

44. speed of the spring
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
?=vk/m=2p??
Constant for closed system independent of changes in area
V=?A

45. energy of a photon is dependent on...
Force applied parallel to objects surface
When ?=90 b/c sin90=1
Frequency
E=1/2k(A^2)

46. increase in velocity of a fluid is associated with
F=xk=mg
Insulator
Decrease in pressure that fluid exerts on the walls of the container
Sin=1/2 cos=v3/2

47. across capacitor what remains constant
Voltage
Sin=1/2 cos=v3/2
Fk=
W'=?E=?KE+?U

48. audible wave frequency
20 Hz to 20 -000 Hz
2
V=ED
More rigid material

49. diffraction
Charge/length
Spreading out of light as it passes through a narrow opening
Number of protons
Light emitted due to heat

50. mirror image is on same side as object
Work/time
Real image
Internal resistance is zero voltage=emf
1000 kg/m^3 or 1 g/cm^3