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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. first kinematic
frequency never changes for light problems
no heat flow
V = (Vo) + at
(Patm) + (Pgauge)

2. isothermal
2nt=mwavelength
no temp change
(hc/wavelength)=h(Fo) +(Vs)
qrB/m

3. the units of power other than watts
BLv
qV
joules/second
M(Lf)

4. velocity of waves on a string if tension is known
sqrt(T/(m/))
1/4wavelength
dSintheta=mwavelength
e=mc^2

5. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
mgCostheta(mu)d
E/B
qrB/m
1/((1/C)+(1/C)..........)

6. units for voltage other than volts
(No)(wavelength)=(Nn)(new wavelength)
Joules/Columb
(EMF)Rt/10
roegh

7. formula for power with current and resistance
no temp change
(I^2)R
mgCostheta(mu)d
h(Fo)

8. energy of a photon if wavelength is known
qrB/m
mgCostheta(mu)d
(Di)/(Do) or (Hi)/(Ho)
hc/wavelength

9. third kinematic
(hc/wavelength)=h(Fo) +(Vs)
V^2=(Vo)^2 +2a*change in x
d/2
rF

10. electric potential a distance r from a charge
dSintheta=mwavelength
(I^2)RT
K |q||Q|/r^2
KQ/r

11. voltage induced in a rod moving through a uniform magnetic field
FV
V+IR
(V^2)/R
BLv

12. type of collision where K is not conserved
inelastic collision
(N2)/(N1)
(Di)/(Do) or (Hi)/(Ho)
qV

13. formula for energy of a spring mass when spring is at maximum displacement
frequency never changes for light problems
.5KA^2
FV
1/4wavelength

14. work energy theorum
net work = delta K
GM*M/(r^2)
(3/2)nRdeltaT
(N2)/(N1)

15. formula for torque
rF
((Th) -(Tl))/(Th)
net work = delta K
qrB/m

16. isobaric
qrB/m
BLv
constant pressure
nSintheta=nsintheta

17. forgotten power equation
m(v^2)/qvB
h/mv
KI/r
FV

18. equation of continuity
mV -m(Vo)
Ed=V
V = (Vo) + at
AV=(A2)(V2)

19. resistance of a wire
V+IR
.5KA^2
pL/A
(1/Do) + (1/Di) = (1/f)

20. formula for finding magnetic flux
V = (Vo) + at
mgCostheta(mu)d
BA
Q=CV

21. heat during an isometric process
n(Cv)(deltaT)
d/2
m(v^2)/qvB
V^2=(Vo)^2 +2a*change in x

22. heat required to melt a substance
hc/wavelength
opposite motion
M(Lf)
d/2

23. force of frction on an incline
((Th) -(Tl))/(Th)
.5mV^2 + .5KA^2
mgCostheta(mu)d
qrB/m

24. magnification equation
elastic collision
.5mV^2 + .5KA^2
roeVg
(Di)/(Do) or (Hi)/(Ho)

25. force of friction
rF
Q=CV
J= Ft
(Fn)(mu)

26. formula for impluse involving time
FV
V+IR
BA
J= Ft

27. formula for efficiency of a heat engine using work out
h(Fo)
(Wnet)/(Qin)
(I^2)R
sqrt(T/(m/))

28. force of gravity between two objects of mass m
(Wnet)/(Qin)
delta x = (Vo)t + .5at^2
GM*M/(r^2)
mV -m(Vo)

29. formula for constructive interference in a diffraction grating
net work = delta K
pL/A
(V^2)/R
dSintheta=mwavelength

30. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qV
L -LCostheta
(Di)/(Do) or (Hi)/(Ho)
1/4wavelength

31. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
1/((1/C)+(1/C)..........)
MC(deltaT)
J= Ft

32. force a charge in a Bfield
(Wnet)/(Qin)
k|Q|/r^2
no force (right hand rule)
qVB

33. formula to find the absoluate pressure at the bottom of a pool
L -LCostheta
(Patm) + (Pgauge)
perfectly inelastic collision
constant pressure

34. equation for the first law of thermodynamics
.5mV^2 + .5KA^2
(1/Do) + (1/Di) = (1/f)
constant pressure
deltaU = deltaQ + deltaW

35. heat during a cyclic process (net heat)
V+IR
(I^2)RT
deltaU -deltaW
qrB/m

36. energy stored in a capacitor
E/B
.5KA^2
.5CV^2 or .5 Q^2/C or .5QV
m(v^2)/qvB

37. formula for finding the work function of a metal if the cutoff frequency is known
elastic collision
V+IR
h(Fo)
Ed=V

38. snells law
qV
(N2)/(N1)
roegh
nSintheta=nsintheta

39. radius of curvature of a charged particle as it enters a uniform magnetic field
L -LCostheta
delta x = (Vo)t + .5at^2
m(v^2)/qvB
inelastic collision

40. velocity of a molecule of gas
(Di)/(Do) or (Hi)/(Ho)
hc/wavelength
frequency never changes for light problems
sqrt(3KT/m)

41. EMF of a battery having internal resistance R
VI
V+IR
(hc/wavelength)=h(Fo) +(Vs)
Q=CV

42. electric field in a distance r from a charge
BLv
(No)(wavelength)=(Nn)(new wavelength)
k|Q|/r^2
elastic collision

43. 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)R
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta
(I^2)RT

44. the units of current other than amps
(3/2)nRdeltaT
joules/second
Columbs/second
Ed=V

45. pressure
d/2
F/A
h/mv
1/2wavelength

46. type of collision where K is conserved
Q=CV
no heat flow
e=mc^2
elastic collision

47. 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
sqrt(T/(m/))
((Qin) -(Qout))/(Qin)
(EMF)Rt/10

48. formula for charge stored in a capciator
(EMF)Rt/10
(V^2)/R
Q=CV
sqrt(3KT/m)

49. the force on a charge moving parallel to a magnetic field
perfectly inelastic collision
no force (right hand rule)
J= Ft
h(Fo)

50. natural frequency of a closed tube of length L
Joules/Columb
qV
1/4wavelength
mgCostheta(mu)d