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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. second kinematic
J= Ft
delta x = (Vo)t + .5at^2
Columbs/second
(Fn)(mu)

2. units for voltage other than volts
Joules/Columb
((Qin) -(Qout))/(Qin)
(N2)/(N1)
n(Cv)(deltaT)

3. formula for finding the momentum of a photon
mgCostheta(mu)d
E/B
h/wavelength
.5KA^2

4. formula for charge stored in a capciator
Q=CV
Columbs/second
h(Fo)
(Wnet)/(Qin)

5. formula for Carnot efficiency
(I^2)R
(Fn)(mu)
(Di)/(Do) or (Hi)/(Ho)
((Th) -(Tl))/(Th)

6. adibatic
no heat flow
mV -m(Vo)
.5KA^2
FV

7. type of collision where objects stick togerther
KQ/r
Q=CV
n(Cv)(deltaT)
perfectly inelastic collision

8. pressure
(3/2)nRdeltaT
nSintheta=nsintheta
Columbs/second
F/A

9. velocity of a molecule of gas
F/A
sqrt(T/(m/))
sqrt(3KT/m)
1/2wavelength

10. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
Q=CV
constant volume
k|Q|/r^2
(I^2)RT

11. formula to find the gauge pressure at the bottom of a pool
BA
1/4wavelength
mV -m(Vo)
roegh

12. 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
d/2
.5CV^2 or .5 Q^2/C or .5QV
deltaU = deltaQ + deltaW

13. electric potential a distance r from a charge
h/mv
KQ/r
h/wavelength
mgCostheta(mu)d

14. formula for impluse involving time
qV
no temp change
inelastic collision
J= Ft

15. formula for period of a pendulum
2Pi * sqrt(l/g)
elastic collision
F/A
Joules/Columb

16. focal length of a mirror with radius d
d/2
opposite motion
mV -m(Vo)
((Th) -(Tl))/(Th)

17. formula relating voltage and electric field
qVB
mgCostheta(mu)d
GM*M/(r^2)
Ed=V

18. 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)
no temp change
qV
no heat flow

19. formula to find the absoluate pressure at the bottom of a pool
deltaU = deltaQ + deltaW
dSintheta=mwavelength
VI
(Patm) + (Pgauge)

20. the force on a charge moving parallel to a magnetic field
1/((1/C)+(1/C)..........)
no force (right hand rule)
h/wavelength
k|Q|/r^2

21. lens/mirror equation
qV
J= Ft
(3/2)nRdeltaT
(1/Do) + (1/Di) = (1/f)

22. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
((Th) -(Tl))/(Th)
h/wavelength
no heat flow
E/B

23. formula for height of the block (at the start of a pendulum string) in terms of theta and L
.5mV^2 + .5KA^2
L -LCostheta
(hc/wavelength)=h(Fo) +(Vs)
joules/second

24. formula for finding the work function of a metal if the cutoff frequency is known
FV
(No)(wavelength)=(Nn)(new wavelength)
h(Fo)
joules/second

25. natural frequency of an open tube of length L
(I^2)RT
L -LCostheta
J= Ft
1/2wavelength

26. formula for finding the magnetic field a distance r from a current carrying wire
perfectly inelastic collision
KI/r
constant pressure
h(Fo)

27. formula for constructive interference in a diffraction grating
pL/A
k|Q|/r^2
dSintheta=mwavelength
V+IR

28. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
sqrt(3KT/m)
V+IR
k|Q|/r^2

29. formula for change in internal energy in a cosnstat volume PV process
no force (right hand rule)
h/mv
(3/2)nRdeltaT
h(Fo)

30. force of friction
(Fn)(mu)
roegh
Ed=V
m(v^2)/qvB

31. the electric force between two objects of charge Q
K |q||Q|/r^2
(EMF)Rt/10
F/A
hc/wavelength

32. formula for efficiency of a heat engine using work out
(Patm) + (Pgauge)
KI/r
(N2)/(N1)
(Wnet)/(Qin)

33. formula for finding magnetic flux
2nt=mwavelength
net work = delta K
BA
rF

34. what direction is friction?
2Pi * sqrt(l/g)
(3/2)nRdeltaT
((Th) -(Tl))/(Th)
opposite motion

35. formula for constructive interference in a thin membrane with two phase changes
h(Fo)
(Fn)(mu)
.5mV^2 + .5KA^2
2nt=mwavelength

36. hooke's law force of a spring
KI/r
inelastic collision
-KA
BA

37. 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
(No)(wavelength)=(Nn)(new wavelength)
M(Lf)
Q=CV

38. formula for impulse involving momentum
constant pressure
m(v^2)/qvB
mV -m(Vo)
F/A

39. snells law
(I^2)R
nSintheta=nsintheta
MC(deltaT)
1/4wavelength

40. first kinematic
perfectly inelastic collision
V = (Vo) + at
k|Q|/r^2
d/2

41. formula for critical angle
roeVg
((Qin) -(Qout))/(Qin)
joules/second
(N2)/(N1)

42. force of frction on an incline
V = (Vo) + at
no force (right hand rule)
FV
mgCostheta(mu)d

43. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
no heat flow
K |q||Q|/r^2
(1/Do) + (1/Di) = (1/f)

44. natural frequency of a closed tube of length L
BLv
1/4wavelength
1/2wavelength
opposite motion

45. voltage induced in a rod moving through a uniform magnetic field
BLv
(V^2)/R
qrB/m
2nt=mwavelength

46. formula for power with current and voltage
frequency never changes for light problems
VI
delta x = (Vo)t + .5at^2
k|Q|/r^2

47. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
2Pi * sqrt(l/g)
G M/((d/2)^2)
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)

48. equation of continuity
M(Lf)
net work = delta K
roeVg
AV=(A2)(V2)

49. type of collision where K is not conserved
inelastic collision
(V^2)/r
mV -m(Vo)
L -LCostheta

50. heat during an isometric process
1/2wavelength
J= Ft
KQ/r
n(Cv)(deltaT)