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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. v2/2
Approx .7
Real image
Buoyant force equals blocks weight
B=

2. tone with shortest period has
F=qvBetasin?
Approx .7
Y=(F/A)/(?L/L) stress over strain
The shortest wavelength

3. small moduli value
20 Hz to 20 -000 Hz
F=ma
Incident ray
More malleable material

4. kirchhoff's rule -- travel from negative to positive
?=2L/n
Image is always upright virtual and smaller
C=eoKA/D
Emf is positive

5. specific gravity is less than one
Q=mc?t
Rate of doing work
Substance is less dense then water
image/object

6. work as product of pressure and volume change
Sin=1 cos=0
2
F1/A1=F2/A2
Higher temperature increases resistance

7. splitting of white light in a prim is an example of...
Negative
Dispersion
Ampere (1C/s)
Spring constant

8. under what conditions will light undergo total internal reflection
3a=Beta
Dispersion
Light travels from high n to lower n with an angle of incidence greater than the critical angle
Converted to extra kinetic energy of the emitted electron

9. gauge pressure in relation to the others
E=Pt
Difference between the absolute and atm pressure Pg=P- Patm
(mass defect)(speed of light)^2
F=mv^2/r

10. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
Bigger and beyond original object
Req=R1+R2+R3 Veq=V1+V2+V3
Ceq=C1+C2+C3 Veq=V1=V2=V3

11. Formula for centripetal force
3
Force and acceleration
F=mv^2/r
Fnet=0 thus Fg=Fs mg=kx

12. weight
Holds whenever we have a change in energy ?E=?KE+?PE=0
W=mg=?Vg
C=eoKA/D
???

13. power (in general)
Cohesion
Work/time
E=neE n is excess charge
Q=mc?t

14. magnetic field force on current carrying wire
Voltage
2pvL/g
F=I(L*B)
W'=?E=?KE+?U

15. work as it relates to constant force
Real inverted image
J=Force*Time=mv - mvo=?p
W=Fdcos?
C=e(A/d)

16. pressure
EV
Pressure to move - voltage when no charge is moving between 2 terminals
Decrease in pressure that fluid exerts on the walls of the container
F/A

17. atomic mass number represents
Fs=
Q=CV
Protons+neutrons
Ampere (1C/s)

18. buoyant force is due to...
The liquid itself not the object
(Vo+v)/2
No image is formed
Solid to gas

19. frequency of spring is inversely proportional to...
Radiation
Mass
Fs=
Emf is positive

20. surface tension results from
When velocity of the fluid exceeds critical velocity
Charge/length
Cohesion
K+U=constant

21. volumetric rate of flow (property)
Constant for closed system independent of changes in area
The shortest wavelength
Converted to extra kinetic energy of the emitted electron
E=V/d

22. angular frequency of spring ?
?=vk/m=2p??
F=c/?
Hydrostatics
F=- F

23. units for newtons
373K 100
R=pL/A
Converted to extra kinetic energy of the emitted electron
Kg*m/s^2

24. resistance in parallel
image/object
Equilibrium position
T=rFsin?
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3

25. As current flows through a resistor
1000 kg/m^3 or 1 g/cm^3
V/??
Vot+1/2at^2=(V0+v/2)t
Charge remains constant

26. The bigger the cross - section of a resistor..
Force and acceleration
More flow less resistance
1000 kg/m^3 or 1 g/cm^3
?L=aL?T

27. total energy of spring system
Work/time
20 Hz to 20 -000 Hz
Fluid resistance to flow
E=1/2k(A^2)

28. magnetic field is created by loop wire - What is magnetic field at center of loop
Beta=
V=ED
?=4L/n
U=QV

29. force experience by stationary particle in magnetic field
100% of the object will be submerged but will not sink
None
M1v1=m2v2
Conduction

30. type of image ALWAYS created by diverging (convex) mirror
Upright image
?x=1/2(v+vo)t
B=
Virtual upright smaller

31. fungal cells unlike animals cells do not contain
F=c/?
20 Hz to 20 -000 Hz
C=Q/V
Centrioles

32. parabolic mirror: object in front of focal point
F=xk=mg
Gamma decay
Force and acceleration
Virtual upright

33. excess energy of a photon is...
Converted to extra kinetic energy of the emitted electron
Difference between the absolute and atm pressure Pg=P- Patm
Vcos?
I=P/A

34. When is voltage constant across capacitors
Q=mL
Difference between the absolute and atm pressure Pg=P- Patm
When in parallel
?=2L/n

35. to find acceleration due to gravity
Radiation
Req=R1+R2+R3 Veq=V1+V2+V3
I=P/A
Derive universal gravitation equation

36. reflection law
Angle of incidence=angle of reflection
F=1/2(r)
Sin=v2/2 cos=v2/2
Centrioles

37. 60
More malleable material
Sin=v3/2 cos=1/2
Yield strength
Force and acceleration

38. frequency of spring is proportional to...
F=E*A
Spring constant
3
More flow less resistance

39. wavelength in string
Decrease in pressure that fluid exerts on the walls of the container
Body in motion remains in motion unless net force acts upon it
?=2L/n
B=(F/A)/(?V/V)

40. material with low resistance
Conductor
Emf is negative
1000 kg/m^3 or 1 g/cm^3
P=IV

41. electrolyte
Weighted average of the masses of the element
Solute whose solution is conductive
Longitudinal
Vcos?

42. total horizontal distance traveled by projectile
Buoyant force equals blocks weight
Sin=0 cos=1
X=(initial horizontal v)(time in air)
Ceq=C1+C2+C3 Veq=V1=V2=V3

43. difference between Calorie and calorie
0K -273
Fk=
A Calorie is a nutritional term equal to 1000 calories
More flow less resistance

44. 45
Increase length increase resistance
Real image
Sin=v2/2 cos=v2/2
Is equal to gravitational force

45. polarized light
F=ma
It is halved
Increase length increase resistance
Electric fields of all the light waves are oriented in the same direction

46. speed of light in a vacuum (c) =
???
No image is formed
0K -273
U=QV

47. electric field and magnetic field are...
?L=aL?T
Amount of energy required for phase change from solid to liquid
Perpendicular to each other
WATTS

48. when unlike charges move away from each other - U of the system
Splitting of atomic nuclei
Decrease in pressure that fluid exerts on the walls of the container
Increases
Vsin?

49. work done by non conservative force

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50. find factor by which something has been changed
New/old
Voltage
F=E*A
Farad 1 F= 1 c/v