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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
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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. magnification equation
M(Lf)
1/((1/C)+(1/C)..........)
h/wavelength
(Di)/(Do) or (Hi)/(Ho)

2. formula for power with Voltage and resistance
(V^2)/R
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)
Joules/Columb

3. focal length of a mirror with radius d
d/2
.5mV^2 + .5KA^2
VI
0

4. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
1/2wavelength
Columbs/second
K |q||Q|/r^2
(I^2)RT

5. formula relating voltage and electric field
FV
e=mc^2
Ed=V
net work = delta K

6. the units of power other than watts
-KA
joules/second
(Wnet)/(Qin)
(I^2)RT

7. force of friction
d/2
(Fn)(mu)
FV
Joules/Columb

8. electric potential a distance r from a charge
inelastic collision
Ed=V
KQ/r
.5KA^2

9. resistance of a wire
k|Q|/r^2
h/mv
sqrt(T/(m/))
pL/A

10. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
BLv
(I^2)R
M(Lf)

11. velocity of waves on a string if tension is known
qVB
sqrt(T/(m/))
J= Ft
2nt=mwavelength

12. formula for critical angle
pL/A
(I^2)R
(N2)/(N1)
Ed=V

13. formula for constructive interference in a diffraction grating
BLv
dSintheta=mwavelength
no force (right hand rule)
F/A

14. new frequency of light as it enters a new substance
rF
(hc/wavelength)=h(Fo) +(Vs)
(3/2)nRdeltaT
frequency never changes for light problems

15. formula for finding magnetic flux
no temp change
(No)(wavelength)=(Nn)(new wavelength)
1/4wavelength
BA

16. formula for finding the magnetic field a distance r from a current carrying wire
V = (Vo) + at
0
KI/r
perfectly inelastic collision

17. formula for power with current and resistance
h/mv
no heat flow
mV -m(Vo)
(I^2)R

18. velocity of a molecule of gas
2Pi * sqrt(l/g)
sqrt(3KT/m)
no force (right hand rule)
(1/Do) + (1/Di) = (1/f)

19. forgotten power equation
FV
h/wavelength
1/((1/C)+(1/C)..........)
delta x = (Vo)t + .5at^2

20. heat during an isometric process
nSintheta=nsintheta
n(Cv)(deltaT)
constant pressure
e=mc^2

21. formula for finding the momentum of a photon
h/wavelength
delta x = (Vo)t + .5at^2
nSintheta=nsintheta
(1/Do) + (1/Di) = (1/f)

22. formula for change in internal energy in a cosnstat volume PV process
e=mc^2
no force (right hand rule)
dSintheta=mwavelength
(3/2)nRdeltaT

23. force a charge in a Bfield
qVB
((Th) -(Tl))/(Th)
KQ/r
(Di)/(Do) or (Hi)/(Ho)

24. the force on a charge moving parallel to a magnetic field
sqrt(T/(m/))
BA
(I^2)R
no force (right hand rule)

25. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
qE
no heat flow
qV
.5mV^2 + .5KA^2

26. natural frequency of an open tube of length L
V^2=(Vo)^2 +2a*change in x
1/2wavelength
2Pi * sqrt(l/g)
V+IR

27. the force on a charge in an electric field
perfectly inelastic collision
opposite motion
L -LCostheta
qE

28. isothermal
no temp change
((Th) -(Tl))/(Th)
L -LCostheta
Columbs/second

29. the electric force between two objects of charge Q
net work = delta K
K |q||Q|/r^2
rF
inelastic collision

30. the units of current other than amps
Columbs/second
GM*M/(r^2)
no heat flow
(1/Do) + (1/Di) = (1/f)

31. new wavelength of light as it enters a new substance
V+IR
(No)(wavelength)=(Nn)(new wavelength)
KI/r
h(Fo)

32. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
no force (right hand rule)
pL/A
h/mv
E/B

33. units for voltage other than volts
Joules/Columb
(Fn)(mu)
net work = delta K
deltaU = deltaQ + deltaW

34. type of collision where objects stick togerther
1/2wavelength
perfectly inelastic collision
n(Cv)(deltaT)
AV=(A2)(V2)

35. equation for the first law of thermodynamics
qE
1/4wavelength
.5mV^2 + .5KA^2
deltaU = deltaQ + deltaW

36. formula for Carnot efficiency
joules/second
((Th) -(Tl))/(Th)
V^2=(Vo)^2 +2a*change in x
pL/A

37. adibatic
Q=CV
no heat flow
2nt=mwavelength
((Qin) -(Qout))/(Qin)

38. formula for efficiency of a heat engine using work out
(Di)/(Do) or (Hi)/(Ho)
.5KA^2
(Wnet)/(Qin)
((Qin) -(Qout))/(Qin)

39. EMF of a battery having internal resistance R
KQ/r
V+IR
Q=CV
qV

40. third kinematic
.5KA^2
V^2=(Vo)^2 +2a*change in x
V+IR
k|Q|/r^2

41. second kinematic
no temp change
delta x = (Vo)t + .5at^2
(Patm) + (Pgauge)
dSintheta=mwavelength

42. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
roeVg
G M/((d/2)^2)
(EMF)Rt/10
(3/2)nRdeltaT

43. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
.5mV^2 + .5KA^2
KQ/r
(hc/wavelength)=h(Fo) +(Vs)
net work = delta K

44. isobaric
(3/2)nRdeltaT
((Qin) -(Qout))/(Qin)
constant pressure
qE

45. formula to find the gauge pressure at the bottom of a pool
net work = delta K
sqrt(T/(m/))
roegh
(Fn)(mu)

46. formula for impluse involving time
dSintheta=mwavelength
-KA
J= Ft
V = (Vo) + at

47. pressure
perfectly inelastic collision
roegh
F/A
G M/((d/2)^2)

48. equation of continuity
AV=(A2)(V2)
(N2)/(N1)
BA
joules/second

49. formula for period of a pendulum
frequency never changes for light problems
2Pi * sqrt(l/g)
(I^2)RT
k|Q|/r^2

50. formula for the wavelength (debroglie wavelength) of a moving particle
qE
rF
h/mv
(V^2)/R