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AP Physics Formulas

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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1. type of collision where objects stick togerther
h(Fo)
((Qin) -(Qout))/(Qin)
perfectly inelastic collision
hc/wavelength

2. force a charge in a Bfield
KI/r
roegh
qVB
dSintheta=mwavelength

3. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
h/mv
2nt=mwavelength
(I^2)R

4. formula for finding the magnetic field a distance r from a current carrying wire
mgCostheta(mu)d
KI/r
(No)(wavelength)=(Nn)(new wavelength)
joules/second

5. formula for critical angle
roeVg
GM*M/(r^2)
(N2)/(N1)
AV=(A2)(V2)

6. 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
(N2)/(N1)
mgCostheta(mu)d
.5KA^2

7. formula relating voltage and electric field
FV
Ed=V
(hc/wavelength)=h(Fo) +(Vs)
G M/((d/2)^2)

8. voltage induced in a rod moving through a uniform magnetic field
FV
rF
n(Cv)(deltaT)
BLv

9. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
rF
-KA
BLv

10. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
no temp change
deltaU = deltaQ + deltaW
net work = delta K

11. second kinematic
((Qin) -(Qout))/(Qin)
inelastic collision
M(Lf)
delta x = (Vo)t + .5at^2

12. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
1/2wavelength
(3/2)nRdeltaT

13. formula for period of a pendulum
2Pi * sqrt(l/g)
Joules/Columb
sqrt(T/(m/))
G M/((d/2)^2)

14. velocity of an electrion as it exitws from the hole
(Fn)(mu)
2Pi * sqrt(l/g)
1/((1/C)+(1/C)..........)
qrB/m

15. work energy theorum
Q=CV
qVB
1/4wavelength
net work = delta K

16. snells law
constant pressure
nSintheta=nsintheta
(Wnet)/(Qin)
opposite motion

17. formula for efficiency not using work out
.5mV^2 + .5KA^2
((Qin) -(Qout))/(Qin)
roeVg
inelastic collision

18. third kinematic
V^2=(Vo)^2 +2a*change in x
-KA
K |q||Q|/r^2
no temp change

19. heat required to change temperature of a substance
qVB
pL/A
MC(deltaT)
F/A

20. the units of power other than watts
constant pressure
(Fn)(mu)
joules/second
2nt=mwavelength

21. change in internal energy during a cyclic process
.5mV^2 + .5KA^2
0
mgCostheta(mu)d
1/((1/C)+(1/C)..........)

22. heat required to melt a substance
nSintheta=nsintheta
M(Lf)
(V^2)/r
(N2)/(N1)

23. formula for energy of a spring mass when spring is at maximum displacement
FV
(V^2)/r
.5KA^2
(hc/wavelength)=h(Fo) +(Vs)

24. formula for impulse involving momentum
joules/second
((Th) -(Tl))/(Th)
mV -m(Vo)
K |q||Q|/r^2

25. the force on a charge in an electric field
VI
((Th) -(Tl))/(Th)
sqrt(T/(m/))
qE

26. velocity of waves on a string if tension is known
k|Q|/r^2
L -LCostheta
sqrt(T/(m/))
(V^2)/R

27. what direction is friction?
GM*M/(r^2)
opposite motion
(1/Do) + (1/Di) = (1/f)
roeVg

28. isobaric
Q=CV
qE
VI
constant pressure

29. isothermal
F/A
no temp change
K |q||Q|/r^2
GM*M/(r^2)

30. pressure
.5mV^2 + .5KA^2
qVB
F/A
n(Cv)(deltaT)

31. magnification equation
constant pressure
e=mc^2
delta x = (Vo)t + .5at^2
(Di)/(Do) or (Hi)/(Ho)

32. new wavelength of light as it enters a new substance
(V^2)/R
2Pi * sqrt(l/g)
(No)(wavelength)=(Nn)(new wavelength)
K |q||Q|/r^2

33. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
no heat flow
(EMF)Rt/10
AV=(A2)(V2)
Joules/Columb

34. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
2Pi * sqrt(l/g)
perfectly inelastic collision
constant volume
qV

35. formula for power with current and resistance
(I^2)R
no temp change
deltaU = deltaQ + deltaW
frequency never changes for light problems

36. natural frequency of an open tube of length L
V+IR
KQ/r
1/2wavelength
h/wavelength

37. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)
roegh
V^2=(Vo)^2 +2a*change in x

38. electric field in a distance r from a charge
roegh
BA
k|Q|/r^2
2nt=mwavelength

39. electric potential a distance r from a charge
KI/r
e=mc^2
KQ/r
.5CV^2 or .5 Q^2/C or .5QV

40. formula for torque
M(Lf)
J= Ft
rF
(Patm) + (Pgauge)

41. type of collision where K is conserved
elastic collision
qrB/m
rF
h/wavelength

42. type of collision where K is not conserved
inelastic collision
no force (right hand rule)
KQ/r
(EMF)Rt/10

43. EMF of a battery having internal resistance R
V+IR
2nt=mwavelength
1/4wavelength
(I^2)RT

44. heat during an isometric process
(Di)/(Do) or (Hi)/(Ho)
.5CV^2 or .5 Q^2/C or .5QV
n(Cv)(deltaT)
E/B

45. the electric force between two objects of charge Q
(Di)/(Do) or (Hi)/(Ho)
K |q||Q|/r^2
inelastic collision
1/((1/C)+(1/C)..........)

46. force of friction
mgCostheta(mu)d
VI
(Fn)(mu)
(1/Do) + (1/Di) = (1/f)

47. energy stored in a capacitor
dSintheta=mwavelength
(3/2)nRdeltaT
perfectly inelastic collision
.5CV^2 or .5 Q^2/C or .5QV

48. focal length of a mirror with radius d
0
(Fn)(mu)
d/2
no heat flow

49. formula for power with current and voltage
E/B
V+IR
VI
k|Q|/r^2

50. the units of current other than amps
qVB
Columbs/second
roegh
elastic collision

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AP Physics Formulas

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