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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 relating voltage and electric field
M(Lf)
m(v^2)/qvB
no force (right hand rule)
Ed=V

2. force of friction
BLv
(Fn)(mu)
V = (Vo) + at
qVB

3. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
.5mV^2 + .5KA^2
qrB/m
KI/r

4. lens/mirror equation
((Th) -(Tl))/(Th)
h(Fo)
2Pi * sqrt(l/g)
(1/Do) + (1/Di) = (1/f)

5. formula for critical angle
Ed=V
J= Ft
M(Lf)
(N2)/(N1)

6. formula for finding the work function of a metal if the cutoff frequency is known
Q=CV
(N2)/(N1)
K |q||Q|/r^2
h(Fo)

7. force a charge in a Bfield
qrB/m
(Wnet)/(Qin)
qVB
1/((1/C)+(1/C)..........)

8. third kinematic
rF
.5KA^2
V^2=(Vo)^2 +2a*change in x
Ed=V

9. force of frction on an incline
mgCostheta(mu)d
m(v^2)/qvB
Columbs/second
net work = delta K

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
F/A
hc/wavelength
Joules/Columb
qV

11. formula for power with Voltage and resistance
(V^2)/R
roegh
(N2)/(N1)
h/mv

12. change in internal energy during a cyclic process
0
mgCostheta(mu)d
Joules/Columb
1/4wavelength

13. adibatic
no temp change
constant volume
no force (right hand rule)
no heat flow

14. formula for power with current and resistance
net work = delta K
(EMF)Rt/10
(I^2)R
perfectly inelastic collision

15. isobaric
constant pressure
E/B
k|Q|/r^2
sqrt(3KT/m)

16. formula for torque
rF
nSintheta=nsintheta
V = (Vo) + at
Joules/Columb

17. radius of curvature of a charged particle as it enters a uniform magnetic field
qrB/m
M(Lf)
m(v^2)/qvB
L -LCostheta

18. equation of continuity
(Wnet)/(Qin)
FV
delta x = (Vo)t + .5at^2
AV=(A2)(V2)

19. magnification equation
rF
(I^2)R
2nt=mwavelength
(Di)/(Do) or (Hi)/(Ho)

20. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
Q=CV
(Fn)(mu)
no force (right hand rule)

21. heat during a cyclic process (net heat)
deltaU -deltaW
(V^2)/R
(Patm) + (Pgauge)
h/wavelength

22. velocity of a molecule of gas
((Th) -(Tl))/(Th)
M(Lf)
sqrt(3KT/m)
(hc/wavelength)=h(Fo) +(Vs)

23. type of collision where K is not conserved
inelastic collision
constant volume
Ed=V
(V^2)/r

24. energy of a photon if wavelength is known
mV -m(Vo)
pL/A
(hc/wavelength)=h(Fo) +(Vs)
hc/wavelength

25. equation for the first law of thermodynamics
m(v^2)/qvB
qrB/m
KI/r
deltaU = deltaQ + deltaW

26. the force on a charge in an electric field
constant volume
qE
mV -m(Vo)
E/B

27. the units of power other than watts
Ed=V
dSintheta=mwavelength
rF
joules/second

28. EMF of a battery having internal resistance R
sqrt(3KT/m)
((Qin) -(Qout))/(Qin)
V+IR
(hc/wavelength)=h(Fo) +(Vs)

29. formula for efficiency of a heat engine using work out
rF
FV
(Wnet)/(Qin)
d/2

30. electric field in a distance r from a charge
(1/Do) + (1/Di) = (1/f)
(V^2)/R
V^2=(Vo)^2 +2a*change in x
k|Q|/r^2

31. formula for finding the momentum of a photon
2nt=mwavelength
h/wavelength
L -LCostheta
qE

32. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
mgCostheta(mu)d
no heat flow
(I^2)RT
.5mV^2 + .5KA^2

33. heat during an isometric process
m(v^2)/qvB
h/mv
hc/wavelength
n(Cv)(deltaT)

34. type of collision where K is conserved
M(Lf)
MC(deltaT)
constant volume
elastic collision

35. type of collision where objects stick togerther
delta x = (Vo)t + .5at^2
(I^2)RT
perfectly inelastic collision
net work = delta K

36. formula for finding magnetic flux
pL/A
no temp change
(Wnet)/(Qin)
BA

37. formula for centripetal acceleration
(V^2)/r
KQ/r
(I^2)R
h(Fo)

38. pressure
KQ/r
inelastic collision
joules/second
F/A

39. natural frequency of an open tube of length L
1/2wavelength
0
qE
(Patm) + (Pgauge)

40. work energy theorum
dSintheta=mwavelength
(No)(wavelength)=(Nn)(new wavelength)
net work = delta K
VI

41. the units of current other than amps
Columbs/second
qrB/m
0
pL/A

42. first kinematic
GM*M/(r^2)
1/((1/C)+(1/C)..........)
V = (Vo) + at
VI

43. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
V+IR
(3/2)nRdeltaT
Joules/Columb

44. formula for buoyant force
(V^2)/r
(Patm) + (Pgauge)
e=mc^2
roeVg

45. formula equating energy and mass
.5mV^2 + .5KA^2
-KA
e=mc^2
roegh

46. second kinematic
2Pi * sqrt(l/g)
perfectly inelastic collision
delta x = (Vo)t + .5at^2
roegh

47. isothermal
opposite motion
FV
no temp change
(1/Do) + (1/Di) = (1/f)

48. formula for the wavelength (debroglie wavelength) of a moving particle
.5CV^2 or .5 Q^2/C or .5QV
no force (right hand rule)
0
h/mv

49. the electric force between two objects of charge Q
(Fn)(mu)
K |q||Q|/r^2
.5mV^2 + .5KA^2
(Wnet)/(Qin)

50. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
GM*M/(r^2)
perfectly inelastic collision
E/B
AV=(A2)(V2)