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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. isothermal
1/2wavelength
no temp change
(Di)/(Do) or (Hi)/(Ho)
2nt=mwavelength

2. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
(Fn)(mu)
VI
1/4wavelength

3. magnification equation
(Patm) + (Pgauge)
pL/A
h(Fo)
(Di)/(Do) or (Hi)/(Ho)

4. formula for charge stored in a capciator
(Fn)(mu)
roeVg
Q=CV
no temp change

5. formula for torque
constant volume
rF
F/A
(I^2)R

6. the units of current other than amps
joules/second
Columbs/second
(I^2)RT
-KA

7. heat during an isometric process
n(Cv)(deltaT)
frequency never changes for light problems
L -LCostheta
perfectly inelastic collision

8. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
rF
V^2=(Vo)^2 +2a*change in x
((Th) -(Tl))/(Th)

9. new frequency of light as it enters a new substance
n(Cv)(deltaT)
Q=CV
frequency never changes for light problems
1/4wavelength

10. forgotten power equation
KI/r
no heat flow
.5CV^2 or .5 Q^2/C or .5QV
FV

11. units for voltage other than volts
deltaU = deltaQ + deltaW
2Pi * sqrt(l/g)
hc/wavelength
Joules/Columb

12. new wavelength of light as it enters a new substance
V = (Vo) + at
qrB/m
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)

13. formula for finding the work function of a metal if the cutoff frequency is known
e=mc^2
no temp change
(V^2)/R
h(Fo)

14. natural frequency of an open tube of length L
1/2wavelength
2nt=mwavelength
BA
G M/((d/2)^2)

15. 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
qrB/m
K |q||Q|/r^2
((Th) -(Tl))/(Th)

16. force a charge in a Bfield
L -LCostheta
BA
qVB
VI

17. equation for the first law of thermodynamics
2Pi * sqrt(l/g)
V+IR
VI
deltaU = deltaQ + deltaW

18. formula to find the gauge pressure at the bottom of a pool
d/2
constant volume
sqrt(3KT/m)
roegh

19. focal length of a mirror with radius d
h(Fo)
opposite motion
d/2
frequency never changes for light problems

20. hooke's law force of a spring
-KA
Joules/Columb
no force (right hand rule)
V+IR

21. formula to find the absoluate pressure at the bottom of a pool
net work = delta K
roeVg
.5KA^2
(Patm) + (Pgauge)

22. velocity of an electrion as it exitws from the hole
qrB/m
opposite motion
d/2
Columbs/second

23. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
hc/wavelength
mV -m(Vo)
deltaU = deltaQ + deltaW

24. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
G M/((d/2)^2)
h/mv
VI
(I^2)RT

25. force of friction
(Fn)(mu)
roeVg
Columbs/second
qV

26. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
qE
qVB
constant volume

27. formula for impluse involving time
deltaU = deltaQ + deltaW
h/mv
k|Q|/r^2
J= Ft

28. formula for critical angle
delta x = (Vo)t + .5at^2
2Pi * sqrt(l/g)
qV
(N2)/(N1)

29. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
Columbs/second
1/2wavelength
((Qin) -(Qout))/(Qin)

30. work energy theorum
mV -m(Vo)
roegh
net work = delta K
((Qin) -(Qout))/(Qin)

31. formula for finding the momentum of a photon
mV -m(Vo)
(Di)/(Do) or (Hi)/(Ho)
h(Fo)
h/wavelength

32. formula for the wavelength (debroglie wavelength) of a moving particle
.5mV^2 + .5KA^2
(3/2)nRdeltaT
1/((1/C)+(1/C)..........)
h/mv

33. force of gravity between two objects of mass m
(EMF)Rt/10
Ed=V
Columbs/second
GM*M/(r^2)

34. type of collision where objects stick togerther
deltaU = deltaQ + deltaW
perfectly inelastic collision
h(Fo)
qE

35. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
Q=CV
1/2wavelength
(EMF)Rt/10
no force (right hand rule)

36. electric field in a distance r from a charge
L -LCostheta
sqrt(3KT/m)
k|Q|/r^2
(3/2)nRdeltaT

37. electric potential a distance r from a charge
KQ/r
BA
no force (right hand rule)
.5CV^2 or .5 Q^2/C or .5QV

38. heat required to melt a substance
(N2)/(N1)
M(Lf)
Ed=V
(No)(wavelength)=(Nn)(new wavelength)

39. formula for finding magnetic flux
h/mv
n(Cv)(deltaT)
BA
(Patm) + (Pgauge)

40. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
K |q||Q|/r^2
.5mV^2 + .5KA^2
constant volume
GM*M/(r^2)

41. the electric force between two objects of charge Q
FV
K |q||Q|/r^2
M(Lf)
.5KA^2

42. formula for Carnot efficiency
((Th) -(Tl))/(Th)
((Qin) -(Qout))/(Qin)
M(Lf)
KQ/r

43. formula for buoyant force
roeVg
Ed=V
L -LCostheta
.5CV^2 or .5 Q^2/C or .5QV

44. first kinematic
no heat flow
V = (Vo) + at
G M/((d/2)^2)
.5mV^2 + .5KA^2

45. formula for centripetal acceleration
.5CV^2 or .5 Q^2/C or .5QV
.5mV^2 + .5KA^2
n(Cv)(deltaT)
(V^2)/r

46. formula for change in internal energy in a cosnstat volume PV process
(Di)/(Do) or (Hi)/(Ho)
constant volume
(3/2)nRdeltaT
.5KA^2

47. formula for period of a pendulum
FV
M(Lf)
2Pi * sqrt(l/g)
KQ/r

48. what direction is friction?
V^2=(Vo)^2 +2a*change in x
opposite motion
.5CV^2 or .5 Q^2/C or .5QV
BLv

49. formula for power with current and resistance
(Wnet)/(Qin)
(V^2)/r
G M/((d/2)^2)
(I^2)R

50. radius of curvature of a charged particle as it enters a uniform magnetic field
KQ/r
m(v^2)/qvB
Joules/Columb
(No)(wavelength)=(Nn)(new wavelength)