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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. point of shape change beyond which a material can go back to normal
Yield strength
V=kq/r
Increases
Vo+at

2. kirchhoff's rule -- travel from positive to negative
Splitting of atomic nuclei
Substance is more dense then water
Emf is negative
E=Pt

3. surface tension results from
Side opposite From which light originates
Cohesion
Moving charge
Kg*m/s^2

4. work done by non conservative force

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5. open pipe wavelength
Real image
?=2L/n
Vrms=Vmax/v2
Charge remains constant

6. electric field and magnetic field are...
Perpendicular to each other
Vo^2+2a(?x)
?=2L/n
Kg*m/s^2

7. work function
Real image
Energy required to free electron from given metal
Resistor
E=???=hc/?

8. units for power
V=ED
Y=(F/A)/(?L/L) stress over strain
WATTS
Charge/area

9. period of pendulum
Beta=10Log(I/Io)
Light emitted due to heat
Q=mc?t
2pvL/g

10. electromotive force
A Calorie is a nutritional term equal to 1000 calories
None
Pressure to move - voltage when no charge is moving between 2 terminals
N1>n2

11. if cell is not driving current
Internal resistance is zero voltage=emf
F=- kx
Q=mL
It jumps to higher energy level

12. total horizontal distance traveled by projectile
Proton or neutron
J=Force*Time=mv - mvo=?p
Angle of incidence=angle of reflection
X=(initial horizontal v)(time in air)

13. larger the index of refraction..
Slower light will travel
U=q?v
???
?=2L/n

14. relate charge and current
Coulomb=amphere*sec
?=4L/n
Converted to extra kinetic energy of the emitted electron
?=vk/m=2p??

15. weight
1/f=1/o+ 1/i
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
W=mg=?Vg
Degree=p/180 radian

16. temperature and resistors
Higher temperature increases resistance
Gamma decay
Amount of energy required for phase change from solid to liquid
Perpendicular to each other

17. snells law
Holds whenever we have a change in energy ?E=?KE+?PE=0
Ampere (1C/s)
Vot+1/2at^2=(V0+v/2)t
Nsin?incident=nsin?refraction

18. to find acceleration due to gravity
Derive universal gravitation equation
273K 0
R=pL/A
2pvm/k

19. find power in circuit
Vot+1/2at^2=(V0+v/2)t
Current*voltage
Conductor
Degree=p/180 radian

20. 30
Sin=1/2 cos=v3/2
Approx .7
100% of the object will be submerged but will not sink
Slower light will travel

21. energy of moving proton
W=Fdcos?
Virtual upright
E=kQ/r^2
1/2mv^2

22. what creates a magnetic field
Y=(F/A)/(?L/L) stress over strain
1/2mv^2
Moving charge
F1/A1=F2/A2

23. energy of a photon is dependent on...
F/A
Frequency
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Virtual upright

24. torque is given by
J=Force*Time=mv - mvo=?p
Resistor
T=rF where F is proportional to mass and r is distance from pivot
Frequency

25. equation for v between two parallel plates
V=ED
V/??
Will never decrease capacitance
Energy gained by particle with charge of e when moved through one volt

26. speed of the spring
V=?A
F=nv/2L
B=(F/A)/(?V/V)
N*s/m^2

27. relate focal length and radius of curvature(r)
Increase length increase resistance
F=Gm1m2/r^2
Image is always upright virtual and smaller
F=r/2

28. sound waves are what kind of waves
T=rF where F is proportional to mass and r is distance from pivot
More rigid material
Longitudinal
E=1/2k(A^2)

29. reflection law
Equilibrium position
Angle of incidence=angle of reflection
More flow less resistance
The liquid itself not the object

30. relationship between linear thermal expansion and volumetric thermal expansion
3a=Beta
New/old
E*r
A sin?=n?

31. pressure
F=nv/2L
F=E*A
F/A
Beta=10Log(I/Io)

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

33. period (T) and frequency (f) of a tone are related by
Higher temperature increases resistance
T=1/f
Voltage
Sin=1 cos=0

34. Ohm's Law
Fs=
When velocity of the fluid exceeds critical velocity
V=IR
?=4L/n

35. nucleon
Proton or neutron
Resistor
F=1/2(r)
P=i^2R=V^2/R=IV

36. plane mirrors create What type of image
Energy required to free electron from given metal
As speed of fluid increases pressure and potential energy decrease
Virtual
Zero resistance

37. relate velocities and displacement 2 ways
Coulomb=amphere*sec
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Spring constant
Negative

38. audible wave frequency
Y=(F/A)/(?L/L) stress over strain
20 Hz to 20 -000 Hz
More malleable material
P=IV

39. under constant acceleration V(average)=
F=Gm1m2/r^2
P=i^2R=V^2/R=IV
(Vo+v)/2
2pr

40. Log(1000)=
None
Light travels from high n to lower n with an angle of incidence greater than the critical angle
3
Vot+1/2at^2=(V0+v/2)t

41. magnetic force
F=qvBetasin?
Vsin?
Derive universal gravitation equation
E=???=hc/?

42. a virtual image has what kind of image distance
Internal resistance is zero voltage=emf
Negative
I=P/A
Angle of incidence=angle of reflection

43. magnitude of magnetic field for current carrying wire
P=IA
Spreading out of light as it passes through a narrow opening
Rate of doing work
Beta=

44. power of sound wave
P=IA
Substance is less dense then water
Resistor
R=pL/A

45. 'real' side of a lens
Approx .7
Side opposite From which light originates
?x=1/2(v+vo)t
P=i^2r

46. ? of sound wave=
Mass number
Fk=
V/??
Electric fields of all the light waves are oriented in the same direction

47. When does turbulence in a fluid arise
2 times the focal distance
When velocity of the fluid exceeds critical velocity
T=rF where F is proportional to mass and r is distance from pivot
Mass number

48. Bernoulli's equation
The liquid itself not the object
F=xk=mg
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
?=2L/n

49. equation for capacitance with dielectric
Buoyant force equals blocks weight
C=eoKA/D
It jumps to higher energy level
C=Q/V

50. location of minima in diffraction pattern
A sin?=n?
V=kQ/r
Real image
None