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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. formula for change in internal energy in a cosnstat volume PV process
nSintheta=nsintheta
hc/wavelength
BA
(3/2)nRdeltaT

2. equation of continuity
(hc/wavelength)=h(Fo) +(Vs)
AV=(A2)(V2)
joules/second
((Th) -(Tl))/(Th)

3. formula for charge stored in a capciator
-KA
opposite motion
Q=CV
.5KA^2

4. heat required to change temperature of a substance
((Th) -(Tl))/(Th)
hc/wavelength
d/2
MC(deltaT)

5. the units of power other than watts
rF
AV=(A2)(V2)
VI
joules/second

6. force of frction on an incline
J= Ft
pL/A
mgCostheta(mu)d
E/B

7. formula for critical angle
net work = delta K
L -LCostheta
qrB/m
(N2)/(N1)

8. natural frequency of an open tube of length L
deltaU = deltaQ + deltaW
2nt=mwavelength
frequency never changes for light problems
1/2wavelength

9. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
qV
G M/((d/2)^2)
deltaU -deltaW
1/4wavelength

10. radius of curvature of a charged particle as it enters a uniform magnetic field
(N2)/(N1)
mgCostheta(mu)d
m(v^2)/qvB
delta x = (Vo)t + .5at^2

11. formula to find the absoluate pressure at the bottom of a pool
2Pi * sqrt(l/g)
(Patm) + (Pgauge)
VI
sqrt(3KT/m)

12. work energy theorum
BA
(Wnet)/(Qin)
roegh
net work = delta K

13. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
0
(3/2)nRdeltaT
(No)(wavelength)=(Nn)(new wavelength)

14. formula for energy of a spring mass when spring is at maximum displacement
d/2
.5KA^2
h(Fo)
roegh

15. adibatic
no heat flow
K |q||Q|/r^2
rF
1/4wavelength

16. formula to find the gauge pressure at the bottom of a pool
h(Fo)
M(Lf)
roegh
frequency never changes for light problems

17. formula for height of the block (at the start of a pendulum string) in terms of theta and L
2nt=mwavelength
Columbs/second
L -LCostheta
VI

18. forgotten power equation
FV
(hc/wavelength)=h(Fo) +(Vs)
2Pi * sqrt(l/g)
e=mc^2

19. focal length of a mirror with radius d
Columbs/second
constant volume
(Di)/(Do) or (Hi)/(Ho)
d/2

20. formula for finding the magnetic field a distance r from a current carrying wire
qE
(I^2)R
KI/r
(3/2)nRdeltaT

21. electric field in a distance r from a charge
k|Q|/r^2
deltaU -deltaW
no heat flow
(Di)/(Do) or (Hi)/(Ho)

22. formula for impulse involving momentum
((Qin) -(Qout))/(Qin)
mV -m(Vo)
(I^2)R
Ed=V

23. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(V^2)/R
qV
delta x = (Vo)t + .5at^2
no heat flow

24. 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
G M/((d/2)^2)
(I^2)R
V = (Vo) + at

25. change in internal energy during a cyclic process
0
opposite motion
(1/Do) + (1/Di) = (1/f)
d/2

26. isobaric
BLv
constant pressure
Joules/Columb
VI

27. force of friction
mgCostheta(mu)d
constant volume
h(Fo)
(Fn)(mu)

28. voltage induced in a rod moving through a uniform magnetic field
qVB
M(Lf)
k|Q|/r^2
BLv

29. isometric
sqrt(3KT/m)
constant volume
qV
Q=CV

30. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
V+IR
.5mV^2 + .5KA^2
net work = delta K

31. heat required to melt a substance
elastic collision
M(Lf)
no temp change
-KA

32. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
frequency never changes for light problems
J= Ft
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)

33. hooke's law force of a spring
(I^2)RT
h/mv
-KA
delta x = (Vo)t + .5at^2

34. formula for impluse involving time
J= Ft
(Fn)(mu)
d/2
BLv

35. velocity of an electrion as it exitws from the hole
qrB/m
AV=(A2)(V2)
inelastic collision
FV

36. formula for buoyant force
roeVg
no force (right hand rule)
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)

37. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
((Th) -(Tl))/(Th)
FV
h(Fo)

38. third kinematic
(V^2)/r
joules/second
V^2=(Vo)^2 +2a*change in x
(Di)/(Do) or (Hi)/(Ho)

39. EMF of a battery having internal resistance R
V+IR
V = (Vo) + at
(3/2)nRdeltaT
(Fn)(mu)

40. natural frequency of a closed tube of length L
inelastic collision
1/4wavelength
KQ/r
FV

41. formula equating energy and mass
e=mc^2
V^2=(Vo)^2 +2a*change in x
qrB/m
(N2)/(N1)

42. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(hc/wavelength)=h(Fo) +(Vs)
E/B
roeVg
L -LCostheta

43. second kinematic
Joules/Columb
joules/second
delta x = (Vo)t + .5at^2
1/4wavelength

44. energy stored in a capacitor
(V^2)/r
VI
.5CV^2 or .5 Q^2/C or .5QV
nSintheta=nsintheta

45. formula for finding magnetic flux
Joules/Columb
GM*M/(r^2)
BA
roegh

46. formula for power with Voltage and resistance
deltaU -deltaW
(V^2)/R
KI/r
G M/((d/2)^2)

47. the units of current other than amps
inelastic collision
h/wavelength
Columbs/second
qrB/m

48. type of collision where K is conserved
d/2
constant volume
elastic collision
(I^2)R

49. formula for period of a pendulum
Columbs/second
2Pi * sqrt(l/g)
rF
perfectly inelastic collision

50. velocity of waves on a string if tension is known
no temp change
deltaU -deltaW
sqrt(T/(m/))
deltaU = deltaQ + deltaW