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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 impluse involving time
1/4wavelength
0
(3/2)nRdeltaT
J= Ft

2. force of friction
(Fn)(mu)
.5KA^2
d/2
(Wnet)/(Qin)

3. second kinematic
Columbs/second
k|Q|/r^2
delta x = (Vo)t + .5at^2
(Patm) + (Pgauge)

4. formula for centripetal acceleration
J= Ft
VI
(3/2)nRdeltaT
(V^2)/r

5. units for voltage other than volts
sqrt(3KT/m)
-KA
no temp change
Joules/Columb

6. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
L -LCostheta
.5mV^2 + .5KA^2
KI/r

7. velocity of waves on a string if tension is known
sqrt(T/(m/))
F/A
k|Q|/r^2
inelastic collision

8. formula for finding the momentum of a photon
h/wavelength
G M/((d/2)^2)
M(Lf)
(I^2)R

9. formula for charge stored in a capciator
h/mv
Columbs/second
V+IR
Q=CV

10. snells law
frequency never changes for light problems
M(Lf)
nSintheta=nsintheta
joules/second

11. formula to find the absoluate pressure at the bottom of a pool
(Fn)(mu)
(Patm) + (Pgauge)
hc/wavelength
K |q||Q|/r^2

12. velocity of a molecule of gas
sqrt(3KT/m)
1/4wavelength
.5CV^2 or .5 Q^2/C or .5QV
qVB

13. isobaric
.5KA^2
no force (right hand rule)
constant pressure
(Patm) + (Pgauge)

14. heat required to change temperature of a substance
no heat flow
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems
MC(deltaT)

15. third kinematic
qE
no force (right hand rule)
V^2=(Vo)^2 +2a*change in x
(EMF)Rt/10

16. type of collision where K is conserved
elastic collision
VI
sqrt(3KT/m)
sqrt(T/(m/))

17. formula equating energy and mass
d/2
frequency never changes for light problems
e=mc^2
G M/((d/2)^2)

18. type of collision where K is not conserved
inelastic collision
2nt=mwavelength
dSintheta=mwavelength
sqrt(3KT/m)

19. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
no heat flow
BLv
(V^2)/r

20. formula for efficiency of a heat engine using work out
hc/wavelength
(Wnet)/(Qin)
.5mV^2 + .5KA^2
constant pressure

21. pressure
(V^2)/r
F/A
no temp change
qV

22. resistance of a wire
((Qin) -(Qout))/(Qin)
pL/A
J= Ft
constant pressure

23. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
rF
no force (right hand rule)
GM*M/(r^2)

24. first kinematic
(N2)/(N1)
1/4wavelength
V = (Vo) + at
qE

25. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
AV=(A2)(V2)
elastic collision
sqrt(T/(m/))

26. magnification equation
qV
Ed=V
net work = delta K
(Di)/(Do) or (Hi)/(Ho)

27. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
2Pi * sqrt(l/g)
AV=(A2)(V2)
h/mv
(EMF)Rt/10

28. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
perfectly inelastic collision
G M/((d/2)^2)
e=mc^2
(hc/wavelength)=h(Fo) +(Vs)

29. formula for finding the work function of a metal if the cutoff frequency is known
Ed=V
h(Fo)
MC(deltaT)
(EMF)Rt/10

30. formula for period of a pendulum
((Qin) -(Qout))/(Qin)
no force (right hand rule)
2Pi * sqrt(l/g)
(I^2)R

31. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
roeVg
Columbs/second
.5CV^2 or .5 Q^2/C or .5QV

32. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
BA
e=mc^2
qV
mV -m(Vo)

33. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
((Th) -(Tl))/(Th)
AV=(A2)(V2)
roeVg

34. type of collision where objects stick togerther
.5KA^2
(Patm) + (Pgauge)
perfectly inelastic collision
mgCostheta(mu)d

35. electric potential a distance r from a charge
KQ/r
roeVg
MC(deltaT)
qE

36. energy stored in a capacitor
V^2=(Vo)^2 +2a*change in x
mgCostheta(mu)d
.5CV^2 or .5 Q^2/C or .5QV
joules/second

37. isothermal
no temp change
qE
no force (right hand rule)
perfectly inelastic collision

38. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
(Di)/(Do) or (Hi)/(Ho)
qV
mV -m(Vo)

39. the force on a charge in an electric field
roeVg
frequency never changes for light problems
E/B
qE

40. formula for power with current and resistance
(Wnet)/(Qin)
(I^2)R
m(v^2)/qvB
no temp change

41. formula for height of the block (at the start of a pendulum string) in terms of theta and L
constant pressure
deltaU = deltaQ + deltaW
Q=CV
L -LCostheta

42. heat during an isometric process
0
no temp change
qrB/m
n(Cv)(deltaT)

43. voltage induced in a rod moving through a uniform magnetic field
J= Ft
(I^2)R
no force (right hand rule)
BLv

44. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(1/Do) + (1/Di) = (1/f)
no temp change
dSintheta=mwavelength
E/B

45. equation of continuity
(1/Do) + (1/Di) = (1/f)
AV=(A2)(V2)
m(v^2)/qvB
V^2=(Vo)^2 +2a*change in x

46. heat during a cyclic process (net heat)
V+IR
deltaU -deltaW
opposite motion
(Wnet)/(Qin)

47. the units of current other than amps
MC(deltaT)
V = (Vo) + at
Columbs/second
(Fn)(mu)

48. energy of a photon if wavelength is known
hc/wavelength
roeVg
inelastic collision
rF

49. velocity of an electrion as it exitws from the hole
net work = delta K
.5CV^2 or .5 Q^2/C or .5QV
qrB/m
deltaU -deltaW

50. natural frequency of a closed tube of length L
k|Q|/r^2
elastic collision
Joules/Columb
1/4wavelength