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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 power with current and resistance
perfectly inelastic collision
(I^2)R
hc/wavelength
Ed=V

2. change in internal energy during a cyclic process
deltaU -deltaW
1/((1/C)+(1/C)..........)
(1/Do) + (1/Di) = (1/f)
0

3. EMF of a battery having internal resistance R
nSintheta=nsintheta
V+IR
KI/r
G M/((d/2)^2)

4. new wavelength of light as it enters a new substance
2Pi * sqrt(l/g)
deltaU = deltaQ + deltaW
(No)(wavelength)=(Nn)(new wavelength)
n(Cv)(deltaT)

5. formula for centripetal acceleration
(EMF)Rt/10
((Qin) -(Qout))/(Qin)
(I^2)R
(V^2)/r

6. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(N2)/(N1)
sqrt(3KT/m)
(3/2)nRdeltaT

7. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qVB
L -LCostheta
hc/wavelength
GM*M/(r^2)

8. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
elastic collision
F/A
sqrt(T/(m/))
(EMF)Rt/10

9. formula for finding the momentum of a photon
MC(deltaT)
BLv
(hc/wavelength)=h(Fo) +(Vs)
h/wavelength

10. hooke's law force of a spring
M(Lf)
L -LCostheta
opposite motion
-KA

11. isobaric
KQ/r
no force (right hand rule)
V+IR
constant pressure

12. total capacitance of capacitors in series
2nt=mwavelength
1/((1/C)+(1/C)..........)
frequency never changes for light problems
opposite motion

13. force of friction
(Patm) + (Pgauge)
(Fn)(mu)
.5KA^2
inelastic collision

14. velocity of a molecule of gas
BA
sqrt(3KT/m)
AV=(A2)(V2)
h/wavelength

15. heat during an isometric process
h/wavelength
M(Lf)
n(Cv)(deltaT)
sqrt(3KT/m)

16. first kinematic
V = (Vo) + at
perfectly inelastic collision
frequency never changes for light problems
opposite motion

17. electric field in a distance r from a charge
k|Q|/r^2
no force (right hand rule)
AV=(A2)(V2)
VI

18. second kinematic
elastic collision
frequency never changes for light problems
K |q||Q|/r^2
delta x = (Vo)t + .5at^2

19. resistance of a wire
E/B
pL/A
VI
1/((1/C)+(1/C)..........)

20. formula for finding the work function of a metal if the cutoff frequency is known
1/((1/C)+(1/C)..........)
M(Lf)
h(Fo)
perfectly inelastic collision

21. formula for buoyant force
qV
1/4wavelength
roeVg
mV -m(Vo)

22. isometric
.5mV^2 + .5KA^2
joules/second
MC(deltaT)
constant volume

23. electric potential a distance r from a charge
KQ/r
(N2)/(N1)
roegh
(No)(wavelength)=(Nn)(new wavelength)

24. voltage induced in a rod moving through a uniform magnetic field
BLv
.5CV^2 or .5 Q^2/C or .5QV
G M/((d/2)^2)
AV=(A2)(V2)

25. adibatic
0
Joules/Columb
hc/wavelength
no heat flow

26. formula for efficiency not using work out
hc/wavelength
V = (Vo) + at
((Qin) -(Qout))/(Qin)
(Fn)(mu)

27. formula to find the absoluate pressure at the bottom of a pool
(hc/wavelength)=h(Fo) +(Vs)
(EMF)Rt/10
KQ/r
(Patm) + (Pgauge)

28. formula for constructive interference in a diffraction grating
rF
dSintheta=mwavelength
h/mv
.5mV^2 + .5KA^2

29. formula for power with current and voltage
(V^2)/R
no temp change
VI
m(v^2)/qvB

30. what direction is friction?
k|Q|/r^2
pL/A
opposite motion
GM*M/(r^2)

31. the units of power other than watts
joules/second
0
net work = delta K
1/4wavelength

32. natural frequency of an open tube of length L
1/2wavelength
deltaU -deltaW
opposite motion
G M/((d/2)^2)

33. formula for period of a pendulum
(V^2)/r
M(Lf)
2Pi * sqrt(l/g)
qE

34. formula for critical angle
no force (right hand rule)
(N2)/(N1)
(V^2)/r
(EMF)Rt/10

35. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
0
(Wnet)/(Qin)
((Th) -(Tl))/(Th)

36. natural frequency of a closed tube of length L
1/4wavelength
sqrt(T/(m/))
(Wnet)/(Qin)
pL/A

37. focal length of a mirror with radius d
d/2
roeVg
rF
(I^2)R

38. snells law
frequency never changes for light problems
(V^2)/R
nSintheta=nsintheta
(No)(wavelength)=(Nn)(new wavelength)

39. formula for finding the magnetic field a distance r from a current carrying wire
roeVg
FV
KI/r
KQ/r

40. formula for charge stored in a capciator
deltaU = deltaQ + deltaW
h(Fo)
Q=CV
constant volume

41. heat required to change temperature of a substance
h/mv
net work = delta K
MC(deltaT)
BA

42. third kinematic
roeVg
((Th) -(Tl))/(Th)
V^2=(Vo)^2 +2a*change in x
VI

43. equation of continuity
(EMF)Rt/10
Q=CV
AV=(A2)(V2)
pL/A

44. formula for finding magnetic flux
BA
(No)(wavelength)=(Nn)(new wavelength)
Joules/Columb
(hc/wavelength)=h(Fo) +(Vs)

45. 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
K |q||Q|/r^2
Columbs/second
(I^2)R

46. type of collision where objects stick togerther
mV -m(Vo)
KI/r
perfectly inelastic collision
n(Cv)(deltaT)

47. formula relating voltage and electric field
h/wavelength
Columbs/second
KQ/r
Ed=V

48. formula for efficiency of a heat engine using work out
(3/2)nRdeltaT
qV
qVB
(Wnet)/(Qin)

49. formula for power with Voltage and resistance
constant pressure
(I^2)RT
(V^2)/R
sqrt(T/(m/))

50. formula for impluse involving time
nSintheta=nsintheta
sqrt(T/(m/))
(3/2)nRdeltaT
J= Ft