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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 finding magnetic flux
e=mc^2
KQ/r
BA
h(Fo)

2. formula for constructive interference in a thin membrane with two phase changes
(Di)/(Do) or (Hi)/(Ho)
V+IR
2nt=mwavelength
no heat flow

3. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
(No)(wavelength)=(Nn)(new wavelength)
(I^2)R
(EMF)Rt/10

4. formula for power with Voltage and resistance
constant volume
(Wnet)/(Qin)
V^2=(Vo)^2 +2a*change in x
(V^2)/R

5. type of collision where K is conserved
nSintheta=nsintheta
roegh
elastic collision
(EMF)Rt/10

6. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
GM*M/(r^2)
roegh
(Patm) + (Pgauge)

7. the force on a charge in an electric field
qE
e=mc^2
Ed=V
deltaU -deltaW

8. type of collision where objects stick togerther
perfectly inelastic collision
sqrt(T/(m/))
(Wnet)/(Qin)
F/A

9. formula for charge stored in a capciator
Q=CV
d/2
perfectly inelastic collision
KI/r

10. formula for power with current and resistance
G M/((d/2)^2)
h/mv
(I^2)R
F/A

11. 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
.5mV^2 + .5KA^2
V = (Vo) + at
V+IR

12. natural frequency of an open tube of length L
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
V = (Vo) + at
((Th) -(Tl))/(Th)

13. formula for buoyant force
roegh
(I^2)R
roeVg
opposite motion

14. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
(Fn)(mu)
no heat flow
n(Cv)(deltaT)

15. heat required to change temperature of a substance
frequency never changes for light problems
V+IR
MC(deltaT)
Ed=V

16. forgotten power equation
(I^2)R
mgCostheta(mu)d
FV
roeVg

17. units for voltage other than volts
1/((1/C)+(1/C)..........)
VI
Joules/Columb
M(Lf)

18. isobaric
Joules/Columb
perfectly inelastic collision
constant pressure
1/2wavelength

19. type of collision where K is not conserved
nSintheta=nsintheta
joules/second
inelastic collision
elastic collision

20. first kinematic
KQ/r
(V^2)/R
V = (Vo) + at
perfectly inelastic collision

21. formula for finding the work function of a metal if the cutoff frequency is known
qrB/m
rF
h(Fo)
n(Cv)(deltaT)

22. voltage induced in a rod moving through a uniform magnetic field
(N2)/(N1)
BA
BLv
delta x = (Vo)t + .5at^2

23. pressure
(hc/wavelength)=h(Fo) +(Vs)
(N2)/(N1)
F/A
sqrt(3KT/m)

24. second kinematic
d/2
delta x = (Vo)t + .5at^2
(Fn)(mu)
V = (Vo) + at

25. formula for impluse involving time
((Th) -(Tl))/(Th)
MC(deltaT)
J= Ft
AV=(A2)(V2)

26. EMF of a battery having internal resistance R
pL/A
K |q||Q|/r^2
no temp change
V+IR

27. electric potential a distance r from a charge
KQ/r
.5CV^2 or .5 Q^2/C or .5QV
(1/Do) + (1/Di) = (1/f)
((Th) -(Tl))/(Th)

28. formula for period of a pendulum
rF
h/mv
(V^2)/r
2Pi * sqrt(l/g)

29. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
deltaU = deltaQ + deltaW
h/wavelength
E/B
constant pressure

30. velocity of waves on a string if tension is known
(No)(wavelength)=(Nn)(new wavelength)
sqrt(T/(m/))
inelastic collision
(hc/wavelength)=h(Fo) +(Vs)

31. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
h/wavelength
(Fn)(mu)
G M/((d/2)^2)

32. formula equating energy and mass
VI
(No)(wavelength)=(Nn)(new wavelength)
h(Fo)
e=mc^2

33. velocity of a molecule of gas
sqrt(3KT/m)
constant pressure
1/4wavelength
no force (right hand rule)

34. electric field in a distance r from a charge
k|Q|/r^2
(N2)/(N1)
deltaU = deltaQ + deltaW
BA

35. the electric force between two objects of charge Q
(Fn)(mu)
((Th) -(Tl))/(Th)
K |q||Q|/r^2
qrB/m

36. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
(N2)/(N1)
KQ/r
Columbs/second

37. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
(hc/wavelength)=h(Fo) +(Vs)
FV

38. 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
m(v^2)/qvB
joules/second
2Pi * sqrt(l/g)

39. formula for efficiency not using work out
hc/wavelength
((Qin) -(Qout))/(Qin)
qVB
roegh

40. formula to find the gauge pressure at the bottom of a pool
(3/2)nRdeltaT
Joules/Columb
roegh
Ed=V

41. what direction is friction?
(Fn)(mu)
qVB
(EMF)Rt/10
opposite motion

42. heat required to melt a substance
deltaU = deltaQ + deltaW
e=mc^2
KQ/r
M(Lf)

43. force a charge in a Bfield
n(Cv)(deltaT)
inelastic collision
sqrt(T/(m/))
qVB

44. energy stored in a capacitor
pL/A
hc/wavelength
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV

45. the force on a charge moving parallel to a magnetic field
opposite motion
GM*M/(r^2)
2Pi * sqrt(l/g)
no force (right hand rule)

46. formula for Carnot efficiency
(N2)/(N1)
KQ/r
((Th) -(Tl))/(Th)
AV=(A2)(V2)

47. formula for impulse involving momentum
FV
mV -m(Vo)
dSintheta=mwavelength
V = (Vo) + at

48. isometric
F/A
BA
M(Lf)
constant volume

49. velocity of an electrion as it exitws from the hole
nSintheta=nsintheta
qrB/m
k|Q|/r^2
BA

50. the units of current other than amps
G M/((d/2)^2)
Columbs/second
n(Cv)(deltaT)
(Fn)(mu)