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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.
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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. formula for change in internal energy in a cosnstat volume PV process
mV -m(Vo)
(3/2)nRdeltaT
n(Cv)(deltaT)
(Fn)(mu)

2. electric potential a distance r from a charge
V^2=(Vo)^2 +2a*change in x
(Patm) + (Pgauge)
(V^2)/R
KQ/r

3. forgotten power equation
L -LCostheta
FV
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)

4. hooke's law force of a spring
qVB
-KA
L -LCostheta
nSintheta=nsintheta

5. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
-KA
KI/r
hc/wavelength
.5mV^2 + .5KA^2

6. isobaric
constant pressure
1/4wavelength
deltaU = deltaQ + deltaW
KI/r

7. the electric force between two objects of charge Q
K |q||Q|/r^2
L -LCostheta
no force (right hand rule)
AV=(A2)(V2)

8. formula for power with current and voltage
h(Fo)
Ed=V
(Di)/(Do) or (Hi)/(Ho)
VI

9. isothermal
GM*M/(r^2)
Joules/Columb
no temp change
elastic collision

10. formula for finding the work function of a metal if the cutoff frequency is known
mgCostheta(mu)d
h(Fo)
V^2=(Vo)^2 +2a*change in x
pL/A

11. natural frequency of a closed tube of length L
V = (Vo) + at
n(Cv)(deltaT)
1/4wavelength
(N2)/(N1)

12. formula for finding the momentum of a photon
Q=CV
h/wavelength
sqrt(3KT/m)
delta x = (Vo)t + .5at^2

13. work energy theorum
net work = delta K
(Di)/(Do) or (Hi)/(Ho)
e=mc^2
GM*M/(r^2)

14. magnification equation
L -LCostheta
(EMF)Rt/10
1/((1/C)+(1/C)..........)
(Di)/(Do) or (Hi)/(Ho)

15. total capacitance of capacitors in series
M(Lf)
no heat flow
((Qin) -(Qout))/(Qin)
1/((1/C)+(1/C)..........)

16. resistance of a wire
qE
M(Lf)
pL/A
(I^2)RT

17. radius of curvature of a charged particle as it enters a uniform magnetic field
h(Fo)
m(v^2)/qvB
VI
J= Ft

18. type of collision where objects stick togerther
constant volume
h/mv
(Wnet)/(Qin)
perfectly inelastic collision

19. formula for finding the magnetic field a distance r from a current carrying wire
h/wavelength
h/mv
KI/r
(Patm) + (Pgauge)

20. electric field in a distance r from a charge
k|Q|/r^2
.5KA^2
BA
joules/second

21. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
e=mc^2
qE
KQ/r

22. formula for period of a pendulum
inelastic collision
2Pi * sqrt(l/g)
M(Lf)
(hc/wavelength)=h(Fo) +(Vs)

23. isometric
(Wnet)/(Qin)
constant volume
(I^2)R
dSintheta=mwavelength

24. force of gravity between two objects of mass m
(V^2)/R
KQ/r
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)

25. first kinematic
k|Q|/r^2
V = (Vo) + at
(I^2)RT
KQ/r

26. the units of power other than watts
((Th) -(Tl))/(Th)
roeVg
qVB
joules/second

27. formula for finding magnetic flux
mgCostheta(mu)d
inelastic collision
qVB
BA

28. change in internal energy during a cyclic process
0
roegh
h/mv
d/2

29. velocity of a molecule of gas
sqrt(3KT/m)
d/2
no temp change
net work = delta K

30. formula for power with current and resistance
.5mV^2 + .5KA^2
(No)(wavelength)=(Nn)(new wavelength)
k|Q|/r^2
(I^2)R

31. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
e=mc^2
mgCostheta(mu)d
AV=(A2)(V2)

32. force a charge in a Bfield
.5CV^2 or .5 Q^2/C or .5QV
qVB
n(Cv)(deltaT)
joules/second

33. velocity of an electrion as it exitws from the hole
joules/second
qrB/m
e=mc^2
h(Fo)

34. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
sqrt(3KT/m)
sqrt(T/(m/))
(V^2)/r

35. type of collision where K is not conserved
E/B
J= Ft
mgCostheta(mu)d
inelastic collision

36. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
2Pi * sqrt(l/g)
h/wavelength
(hc/wavelength)=h(Fo) +(Vs)

37. what direction is friction?
opposite motion
mgCostheta(mu)d
rF
joules/second

38. adibatic
no heat flow
(Di)/(Do) or (Hi)/(Ho)
Q=CV
-KA

39. equation of continuity
2nt=mwavelength
.5KA^2
inelastic collision
AV=(A2)(V2)

40. formula relating voltage and electric field
qV
BLv
Ed=V
pL/A

41. heat during a cyclic process (net heat)
(1/Do) + (1/Di) = (1/f)
net work = delta K
deltaU -deltaW
Q=CV

42. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
perfectly inelastic collision
m(v^2)/qvB
pL/A

43. formula for charge stored in a capciator
qVB
nSintheta=nsintheta
.5KA^2
Q=CV

44. formula for torque
Columbs/second
rF
.5KA^2
roeVg

45. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
joules/second
qV
inelastic collision
qVB

46. heat during an isometric process
BLv
n(Cv)(deltaT)
(N2)/(N1)
constant pressure

47. second kinematic
((Th) -(Tl))/(Th)
(Di)/(Do) or (Hi)/(Ho)
delta x = (Vo)t + .5at^2
deltaU = deltaQ + deltaW

48. force of frction on an incline
constant volume
2nt=mwavelength
KI/r
mgCostheta(mu)d

49. units for voltage other than volts
Joules/Columb
mV -m(Vo)
constant volume
h(Fo)

50. formula for efficiency not using work out
V+IR
h/wavelength
VI
((Qin) -(Qout))/(Qin)