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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. formula for buoyant force
M(Lf)
roeVg
E/B
n(Cv)(deltaT)

2. radius of curvature of a charged particle as it enters a uniform magnetic field
V^2=(Vo)^2 +2a*change in x
m(v^2)/qvB
2Pi * sqrt(l/g)
(EMF)Rt/10

3. hooke's law force of a spring
qVB
2Pi * sqrt(l/g)
-KA
M(Lf)

4. first kinematic
J= Ft
V^2=(Vo)^2 +2a*change in x
VI
V = (Vo) + at

5. the force on a charge in an electric field
1/((1/C)+(1/C)..........)
qE
V+IR
(V^2)/R

6. formula for finding the momentum of a photon
h/wavelength
inelastic collision
(Patm) + (Pgauge)
((Th) -(Tl))/(Th)

7. formula for centripetal acceleration
(V^2)/r
M(Lf)
GM*M/(r^2)
sqrt(T/(m/))

8. work energy theorum
net work = delta K
(Fn)(mu)
Q=CV
e=mc^2

9. the units of current other than amps
(Fn)(mu)
K |q||Q|/r^2
1/2wavelength
Columbs/second

10. total capacitance of capacitors in series
.5KA^2
V = (Vo) + at
V+IR
1/((1/C)+(1/C)..........)

11. change in internal energy during a cyclic process
n(Cv)(deltaT)
.5CV^2 or .5 Q^2/C or .5QV
0
inelastic collision

12. formula for constructive interference in a thin membrane with two phase changes
dSintheta=mwavelength
BLv
2nt=mwavelength
no heat flow

13. natural frequency of an open tube of length L
F/A
d/2
constant pressure
1/2wavelength

14. natural frequency of a closed tube of length L
((Qin) -(Qout))/(Qin)
Ed=V
1/4wavelength
(I^2)RT

15. isobaric
constant pressure
joules/second
qE
Q=CV

16. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
mgCostheta(mu)d
1/4wavelength
net work = delta K

17. formula for finding the work function of a metal if the cutoff frequency is known
nSintheta=nsintheta
h(Fo)
(3/2)nRdeltaT
M(Lf)

18. units for voltage other than volts
G M/((d/2)^2)
net work = delta K
Joules/Columb
Q=CV

19. formula for power with Voltage and resistance
frequency never changes for light problems
n(Cv)(deltaT)
(V^2)/R
nSintheta=nsintheta

20. formula for finding the magnetic field a distance r from a current carrying wire
constant volume
dSintheta=mwavelength
KI/r
V^2=(Vo)^2 +2a*change in x

21. heat during an isometric process
n(Cv)(deltaT)
(Fn)(mu)
(Wnet)/(Qin)
.5KA^2

22. third kinematic
(EMF)Rt/10
(1/Do) + (1/Di) = (1/f)
0
V^2=(Vo)^2 +2a*change in x

23. formula equating energy and mass
dSintheta=mwavelength
G M/((d/2)^2)
e=mc^2
(I^2)RT

24. isothermal
n(Cv)(deltaT)
(I^2)R
h/wavelength
no temp change

25. EMF of a battery having internal resistance R
V = (Vo) + at
AV=(A2)(V2)
.5mV^2 + .5KA^2
V+IR

26. type of collision where objects stick togerther
no temp change
FV
perfectly inelastic collision
F/A

27. electric potential a distance r from a charge
G M/((d/2)^2)
KQ/r
delta x = (Vo)t + .5at^2
(Fn)(mu)

28. 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
F/A
FV
roeVg

29. type of collision where K is conserved
(N2)/(N1)
2nt=mwavelength
(I^2)R
elastic collision

30. what direction is friction?
opposite motion
-KA
joules/second
(Patm) + (Pgauge)

31. formula for power with current and resistance
constant pressure
.5mV^2 + .5KA^2
opposite motion
(I^2)R

32. velocity of waves on a string if tension is known
.5mV^2 + .5KA^2
sqrt(T/(m/))
k|Q|/r^2
net work = delta K

33. velocity of a molecule of gas
sqrt(3KT/m)
G M/((d/2)^2)
deltaU -deltaW
GM*M/(r^2)

34. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
deltaU = deltaQ + deltaW
F/A
(I^2)RT
MC(deltaT)

35. force of friction
elastic collision
no force (right hand rule)
(Fn)(mu)
qV

36. focal length of a mirror with radius d
roegh
G M/((d/2)^2)
d/2
(Wnet)/(Qin)

37. the units of power other than watts
L -LCostheta
joules/second
1/((1/C)+(1/C)..........)
deltaU = deltaQ + deltaW

38. equation of continuity
(N2)/(N1)
constant pressure
1/4wavelength
AV=(A2)(V2)

39. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
opposite motion
qV
h/mv
qVB

40. formula for impulse involving momentum
mV -m(Vo)
deltaU -deltaW
Q=CV
elastic collision

41. energy of a photon if wavelength is known
AV=(A2)(V2)
d/2
hc/wavelength
((Th) -(Tl))/(Th)

42. type of collision where K is not conserved
KQ/r
MC(deltaT)
h(Fo)
inelastic collision

43. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
V+IR
G M/((d/2)^2)
J= Ft
BLv

44. lens/mirror equation
opposite motion
hc/wavelength
(Di)/(Do) or (Hi)/(Ho)
(1/Do) + (1/Di) = (1/f)

45. force a charge in a Bfield
h/mv
no heat flow
qVB
F/A

46. pressure
(3/2)nRdeltaT
F/A
GM*M/(r^2)
sqrt(3KT/m)

47. formula for impluse involving time
(Patm) + (Pgauge)
J= Ft
(EMF)Rt/10
FV

48. adibatic
roeVg
qV
k|Q|/r^2
no heat flow

49. formula for height of the block (at the start of a pendulum string) in terms of theta and L
pL/A
L -LCostheta
(EMF)Rt/10
(No)(wavelength)=(Nn)(new wavelength)

50. formula for charge stored in a capciator
.5KA^2
Q=CV
qVB
KQ/r