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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. to find acceleration due to gravity
C=e(A/d)
Fnet=0 thus Fg=Fs mg=kx
Derive universal gravitation equation
Energy required to free electron from given metal

2. when unlike charges move away from each other - U of the system
1000 kg/m^3 or 1 g/cm^3
Increases
Increase length increase resistance
Bigger and beyond original object

3. suppose a block is floating in H2O - What does this mean
Buoyant force equals blocks weight
MRT
Slower light will travel
Low voltage to high voltage

4. equation for capacitance with dielectric
P=i^2R=V^2/R=IV
C=eoKA/D
Beta=10Log(I/Io)
Image is always upright virtual and smaller

5. electric work
A=v^2/r
V=???
Emf is positive
U=q?v

6. period of pendulum
F=q/e0
2pvL/g
C=e(A/d)
Resistor

7. specific gravity is less than one
K+U=constant
Substance is less dense then water
Side opposite From which light originates
F=1/2(r)

8. (+) magnification signifies
E=1/2k(A^2)
W=qv
Upright image
V/??

9. electric field and magnetic field are...
Perpendicular to each other
Charge/area
?=2L/n
?L=aL?T

10. What is an electron volt (eV)
Energy gained by particle with charge of e when moved through one volt
F=1/2(r)
Body in motion remains in motion unless net force acts upon it
Irms=Imax/v2

11. calculate lens power
P=1/f
Q=CV
Bigger and beyond original object
Cohesion

12. charge of gamma particles
F=- F
V=kQ/r
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
None

13. charge on the plates of a capacitor
Q=CV
Gamma decay
Energy required to free electron from given metal
Voltage

14. units for newtons
P=1/f
Kg*m/s^2
P=i^2R=V^2/R=IV
Beta=

15. material with low resistance
Conductor
Virtual upright
Low voltage to high voltage
100% of the object will be submerged but will not sink

16. total horizontal distance traveled by projectile
A Calorie is a nutritional term equal to 1000 calories
Charge/length
X=(initial horizontal v)(time in air)
Ceq=C1+C2+C3 Veq=V1=V2=V3

17. total energy of spring system
Real image
T=rF where F is proportional to mass and r is distance from pivot
Centrioles
E=1/2k(A^2)

18. dynamic pressure
Substance is more dense then water
Gas to solid
EV
(1/2)?v^2

19. What does atoms atomic weight represent
Weighted average of the masses of the element
A=v^2/r
Beta=
Emf is negative

20. find voltage (original)
N1>n2
???
V=kq/r
When velocity of the fluid exceeds critical velocity

21. shear
Internal resistance is zero voltage=emf
Conduction
E*r
Force applied parallel to objects surface

22. power is defined as
Rate of doing work
E=Pt
2 times the focal distance
Incident light is used to free electrons from a metal

23. 60
F=- F
E=???=hc/?
When velocity of the fluid exceeds critical velocity
Sin=v3/2 cos=1/2

24. magnetic field is created by loop wire - What is magnetic field at center of loop
R=pL/A
Decrease in pressure that fluid exerts on the walls of the container
M1v1=m2v2
Beta=

25. mass defect
Difference between the mass of nucleus and the sum of nucleons
F/A
Light emitted due to heat
More malleable material

26. meaning of Bernouili's equation
More flow less resistance
As speed of fluid increases pressure and potential energy decrease
Virtual upright
Emf is positive

27. temperature and resistors
Higher temperature increases resistance
Light emitted due to heat
As speed of fluid increases pressure and potential energy decrease
E=???=hc/?

28. period of spring
Bigger and beyond original object
2pvm/k
F/A
E=kQ/r^2

29. Find electric potential given electric field
2pr
No net force acting on it
E*r
2pvL/g

30. center of curvature is...
Light emitted due to heat
2 times the focal distance
E=???=hc/?
Vo^2+2a(?x)

31. capacitors in parallel
Ceq=C1+C2+C3 Veq=V1=V2=V3
Force a molecule of liquid feels toward molecules of some other substance
???
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3

32. power of sound wave
2pvm/k
Charge remains constant
P=i^2r
P=IA

33. convex mirror
F=r/2
N is proportional to 1/?
Image is always upright virtual and smaller
A=v^2/r

34. when spring is at rest
Sin=1/2 cos=v3/2
Fnet=0 thus Fg=Fs mg=kx
2pvL/g
Hydrostatics

35. under constant acceleration - v=
Vo+at
Mass
Virtual upright smaller
100% of the object will be submerged but will not sink

36. location of minima in diffraction pattern
Centrioles
Higher temperature increases resistance
A sin?=n?
Force applied parallel to objects surface

37. audible wave frequency
As speed of fluid increases pressure and potential energy decrease
700nm -400nm
20 Hz to 20 -000 Hz
W'=?E=?KE+?U

38. formula for solution which is diluted related to initial concentration
4 Hz
M1v1=m2v2
U=QV
None

39. pressure
Kg*m/s^2
Minimum frequency of light that will cause emission of an electron
Constant for closed system independent of changes in area
F/A

40. electric field of parallel plate capacitor
I=P/A
Force and acceleration
E=V/d
U=QV

41. light bends away from normal when
Diopters
Beta=
N1>n2
Is equal to gravitational force

42. reflection law
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
F=Gm1m2/r^2
Force applied parallel to objects surface
Angle of incidence=angle of reflection

43. Newtons 2nd law of motion
Conductor
P=i^2r
F=ma
Spreading out of light as it passes through a narrow opening

44. for object in SHM E=
Kg*m/s^2
K+U=constant
2pvL/g
Inverted image

45. charge of beta particles
Buoyant force equals blocks weight
Negative
Amount of energy required for phase change from solid to liquid
1000 kg/m^3 or 1 g/cm^3

46. photoelectric effect
Virtual upright
???
Incident light is used to free electrons from a metal
?V=BetaV?T

47. surface tension results from
M1v1=m2v2
F=- F
Cohesion
P=m?v

48. excess energy of a photon is...
20 Hz to 20 -000 Hz
None
Difference between the absolute and atm pressure Pg=P- Patm
Converted to extra kinetic energy of the emitted electron

49. vertical velocity of projectile
Vcos?
Energy of electrons
C=eoKA/D
Vsin?

50. electrical power
P=IV
Frequency
No image is formed
Makes ?G more negative thus more spontaneous