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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 change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
(V^2)/R
m(v^2)/qvB
KQ/r

2. electric potential a distance r from a charge
d/2
(EMF)Rt/10
KQ/r
Joules/Columb

3. heat during an isometric process
.5mV^2 + .5KA^2
(Di)/(Do) or (Hi)/(Ho)
n(Cv)(deltaT)
G M/((d/2)^2)

4. type of collision where objects stick togerther
perfectly inelastic collision
Ed=V
no temp change
V^2=(Vo)^2 +2a*change in x

5. voltage induced in a rod moving through a uniform magnetic field
BLv
((Qin) -(Qout))/(Qin)
L -LCostheta
e=mc^2

6. natural frequency of an open tube of length L
nSintheta=nsintheta
hc/wavelength
qrB/m
1/2wavelength

7. type of collision where K is not conserved
deltaU -deltaW
K |q||Q|/r^2
inelastic collision
h(Fo)

8. first kinematic
(Wnet)/(Qin)
V = (Vo) + at
((Qin) -(Qout))/(Qin)
((Th) -(Tl))/(Th)

9. formula to find the absoluate pressure at the bottom of a pool
deltaU = deltaQ + deltaW
roeVg
n(Cv)(deltaT)
(Patm) + (Pgauge)

10. force of frction on an incline
m(v^2)/qvB
.5KA^2
mgCostheta(mu)d
sqrt(3KT/m)

11. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(V^2)/r
.5mV^2 + .5KA^2
sqrt(3KT/m)
(I^2)R

12. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
2nt=mwavelength
KI/r
d/2

13. work energy theorum
V+IR
qrB/m
net work = delta K
roegh

14. adibatic
-KA
sqrt(3KT/m)
perfectly inelastic collision
no heat flow

15. the electric force between two objects of charge Q
K |q||Q|/r^2
Columbs/second
(Di)/(Do) or (Hi)/(Ho)
nSintheta=nsintheta

16. isothermal
roegh
no temp change
hc/wavelength
E/B

17. formula for impulse involving momentum
mV -m(Vo)
2nt=mwavelength
sqrt(T/(m/))
constant pressure

18. snells law
nSintheta=nsintheta
roegh
pL/A
(Fn)(mu)

19. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
roegh
(Wnet)/(Qin)
Q=CV
(EMF)Rt/10

20. new frequency of light as it enters a new substance
no heat flow
frequency never changes for light problems
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT

21. formula for power with current and voltage
(hc/wavelength)=h(Fo) +(Vs)
V+IR
(Fn)(mu)
VI

22. formula for energy of a spring mass when spring is at maximum displacement
roegh
.5KA^2
KQ/r
GM*M/(r^2)

23. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
F/A
(hc/wavelength)=h(Fo) +(Vs)
perfectly inelastic collision

24. formula for critical angle
qVB
(N2)/(N1)
n(Cv)(deltaT)
perfectly inelastic collision

25. force of friction
.5CV^2 or .5 Q^2/C or .5QV
(EMF)Rt/10
(Fn)(mu)
qV

26. lens/mirror equation
Q=CV
(1/Do) + (1/Di) = (1/f)
0
K |q||Q|/r^2

27. formula equating energy and mass
constant volume
e=mc^2
sqrt(3KT/m)
net work = delta K

28. natural frequency of a closed tube of length L
mgCostheta(mu)d
inelastic collision
elastic collision
1/4wavelength

29. velocity of a molecule of gas
-KA
sqrt(3KT/m)
L -LCostheta
Ed=V

30. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
V = (Vo) + at
rF
(V^2)/r

31. energy stored in a capacitor
1/2wavelength
d/2
.5CV^2 or .5 Q^2/C or .5QV
2nt=mwavelength

32. formula for height of the block (at the start of a pendulum string) in terms of theta and L
((Th) -(Tl))/(Th)
(Fn)(mu)
Columbs/second
L -LCostheta

33. focal length of a mirror with radius d
qVB
BA
d/2
frequency never changes for light problems

34. formula for charge stored in a capciator
qV
Q=CV
(Fn)(mu)
L -LCostheta

35. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
K |q||Q|/r^2
h(Fo)
FV

36. formula for finding the momentum of a photon
e=mc^2
h/wavelength
deltaU -deltaW
(3/2)nRdeltaT

37. velocity of waves on a string if tension is known
sqrt(T/(m/))
constant volume
L -LCostheta
no heat flow

38. equation of continuity
AV=(A2)(V2)
(I^2)R
(I^2)RT
h/wavelength

39. formula for torque
((Th) -(Tl))/(Th)
V+IR
rF
VI

40. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
roeVg
mgCostheta(mu)d
E/B
no temp change

41. formula for power with current and resistance
qrB/m
(I^2)R
rF
e=mc^2

42. velocity of an electrion as it exitws from the hole
J= Ft
qrB/m
perfectly inelastic collision
qE

43. heat required to melt a substance
M(Lf)
(I^2)R
L -LCostheta
roeVg

44. the force on a charge moving parallel to a magnetic field
roegh
1/((1/C)+(1/C)..........)
no force (right hand rule)
n(Cv)(deltaT)

45. the units of power other than watts
elastic collision
delta x = (Vo)t + .5at^2
roegh
joules/second

46. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
M(Lf)
k|Q|/r^2
V = (Vo) + at

47. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
joules/second
no force (right hand rule)
(I^2)RT
VI

48. resistance of a wire
inelastic collision
pL/A
GM*M/(r^2)
delta x = (Vo)t + .5at^2

49. formula for constructive interference in a thin membrane with two phase changes
(hc/wavelength)=h(Fo) +(Vs)
2nt=mwavelength
rF
h(Fo)

50. the force on a charge in an electric field
(EMF)Rt/10
qE
m(v^2)/qvB
M(Lf)