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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 impulse involving momentum
1/((1/C)+(1/C)..........)
qrB/m
(No)(wavelength)=(Nn)(new wavelength)
mV -m(Vo)

2. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
dSintheta=mwavelength
(V^2)/R
E/B
qE

3. formula for critical angle
(No)(wavelength)=(Nn)(new wavelength)
h/mv
(N2)/(N1)
deltaU -deltaW

4. type of collision where K is not conserved
(I^2)R
inelastic collision
Joules/Columb
(No)(wavelength)=(Nn)(new wavelength)

5. formula for power with current and resistance
(3/2)nRdeltaT
hc/wavelength
V = (Vo) + at
(I^2)R

6. force of frction on an incline
V^2=(Vo)^2 +2a*change in x
qVB
mgCostheta(mu)d
no temp change

7. third kinematic
(I^2)R
net work = delta K
mV -m(Vo)
V^2=(Vo)^2 +2a*change in x

8. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
pL/A
1/2wavelength
(3/2)nRdeltaT

9. new wavelength of light as it enters a new substance
qV
(No)(wavelength)=(Nn)(new wavelength)
nSintheta=nsintheta
2Pi * sqrt(l/g)

10. magnification equation
1/2wavelength
e=mc^2
no heat flow
(Di)/(Do) or (Hi)/(Ho)

11. heat required to melt a substance
rF
M(Lf)
mgCostheta(mu)d
G M/((d/2)^2)

12. type of collision where K is conserved
1/((1/C)+(1/C)..........)
V^2=(Vo)^2 +2a*change in x
elastic collision
AV=(A2)(V2)

13. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
h/wavelength
frequency never changes for light problems
F/A
G M/((d/2)^2)

14. forgotten power equation
FV
.5mV^2 + .5KA^2
(Di)/(Do) or (Hi)/(Ho)
Q=CV

15. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
delta x = (Vo)t + .5at^2
1/((1/C)+(1/C)..........)
(hc/wavelength)=h(Fo) +(Vs)
.5mV^2 + .5KA^2

16. the units of power other than watts
elastic collision
h/wavelength
joules/second
BLv

17. what direction is friction?
BLv
1/4wavelength
opposite motion
(No)(wavelength)=(Nn)(new wavelength)

18. isobaric
V+IR
2Pi * sqrt(l/g)
constant pressure
(No)(wavelength)=(Nn)(new wavelength)

19. velocity of waves on a string if tension is known
no temp change
sqrt(T/(m/))
(EMF)Rt/10
BLv

20. hooke's law force of a spring
k|Q|/r^2
-KA
KI/r
frequency never changes for light problems

21. isothermal
qrB/m
inelastic collision
.5mV^2 + .5KA^2
no temp change

22. formula for finding the work function of a metal if the cutoff frequency is known
(Wnet)/(Qin)
roeVg
h(Fo)
constant volume

23. adibatic
no heat flow
KI/r
(V^2)/r
elastic collision

24. formula for energy of a spring mass when spring is at maximum displacement
roegh
.5KA^2
qV
(I^2)R

25. formula for power with current and voltage
((Th) -(Tl))/(Th)
Columbs/second
mV -m(Vo)
VI

26. voltage induced in a rod moving through a uniform magnetic field
BLv
(3/2)nRdeltaT
qE
(1/Do) + (1/Di) = (1/f)

27. the force on a charge moving parallel to a magnetic field
(V^2)/r
qE
no force (right hand rule)
(Di)/(Do) or (Hi)/(Ho)

28. work energy theorum
(No)(wavelength)=(Nn)(new wavelength)
rF
net work = delta K
deltaU = deltaQ + deltaW

29. force of friction
(3/2)nRdeltaT
(Fn)(mu)
FV
V^2=(Vo)^2 +2a*change in x

30. velocity of an electrion as it exitws from the hole
(3/2)nRdeltaT
h/mv
M(Lf)
qrB/m

31. EMF of a battery having internal resistance R
V+IR
sqrt(3KT/m)
no heat flow
Joules/Columb

32. the force on a charge in an electric field
qE
Q=CV
sqrt(3KT/m)
dSintheta=mwavelength

33. radius of curvature of a charged particle as it enters a uniform magnetic field
J= Ft
m(v^2)/qvB
1/2wavelength
BA

34. velocity of a molecule of gas
d/2
sqrt(T/(m/))
sqrt(3KT/m)
FV

35. formula for centripetal acceleration
sqrt(T/(m/))
no force (right hand rule)
constant pressure
(V^2)/r

36. heat required to change temperature of a substance
qrB/m
(hc/wavelength)=h(Fo) +(Vs)
Ed=V
MC(deltaT)

37. formula for charge stored in a capciator
((Th) -(Tl))/(Th)
(I^2)RT
Q=CV
mV -m(Vo)

38. formula for power with Voltage and resistance
(V^2)/R
Ed=V
h(Fo)
MC(deltaT)

39. heat during an isometric process
Ed=V
n(Cv)(deltaT)
BLv
-KA

40. formula relating voltage and electric field
Ed=V
deltaU -deltaW
Q=CV
mgCostheta(mu)d

41. equation of continuity
AV=(A2)(V2)
KQ/r
Joules/Columb
deltaU = deltaQ + deltaW

42. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
F/A
Joules/Columb
sqrt(3KT/m)

43. pressure
F/A
sqrt(3KT/m)
(I^2)RT
MC(deltaT)

44. formula for change in internal energy in a cosnstat volume PV process
e=mc^2
((Th) -(Tl))/(Th)
(3/2)nRdeltaT
constant volume

45. the electric force between two objects of charge Q
V^2=(Vo)^2 +2a*change in x
GM*M/(r^2)
deltaU -deltaW
K |q||Q|/r^2

46. total capacitance of capacitors in series
sqrt(3KT/m)
delta x = (Vo)t + .5at^2
1/((1/C)+(1/C)..........)
(Wnet)/(Qin)

47. formula equating energy and mass
(No)(wavelength)=(Nn)(new wavelength)
nSintheta=nsintheta
G M/((d/2)^2)
e=mc^2

48. formula for finding magnetic flux
BA
no heat flow
2nt=mwavelength
2Pi * sqrt(l/g)

49. formula to find the gauge pressure at the bottom of a pool
dSintheta=mwavelength
roegh
nSintheta=nsintheta
sqrt(T/(m/))

50. units for voltage other than volts
Joules/Columb
(V^2)/r
L -LCostheta
2nt=mwavelength