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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. forgotten power equation
J= Ft
sqrt(3KT/m)
FV
(V^2)/r

2. what direction is friction?
Q=CV
opposite motion
K |q||Q|/r^2
J= Ft

3. velocity of a molecule of gas
constant pressure
perfectly inelastic collision
F/A
sqrt(3KT/m)

4. isothermal
(I^2)RT
e=mc^2
(Fn)(mu)
no temp change

5. formula for power with current and voltage
(Di)/(Do) or (Hi)/(Ho)
constant volume
VI
roegh

6. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
KI/r
opposite motion
h/wavelength

7. type of collision where K is not conserved
inelastic collision
joules/second
d/2
sqrt(T/(m/))

8. formula for change in internal energy in a cosnstat volume PV process
sqrt(T/(m/))
2nt=mwavelength
(Wnet)/(Qin)
(3/2)nRdeltaT

9. isometric
constant volume
qV
0
n(Cv)(deltaT)

10. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(Fn)(mu)
(EMF)Rt/10
2Pi * sqrt(l/g)
L -LCostheta

11. natural frequency of an open tube of length L
GM*M/(r^2)
(Fn)(mu)
1/2wavelength
(N2)/(N1)

12. third kinematic
mgCostheta(mu)d
BLv
1/((1/C)+(1/C)..........)
V^2=(Vo)^2 +2a*change in x

13. work energy theorum
(Wnet)/(Qin)
sqrt(T/(m/))
net work = delta K
joules/second

14. formula equating energy and mass
.5mV^2 + .5KA^2
V^2=(Vo)^2 +2a*change in x
e=mc^2
opposite motion

15. formula for finding the magnetic field a distance r from a current carrying wire
1/2wavelength
perfectly inelastic collision
KI/r
(I^2)R

16. formula for period of a pendulum
((Qin) -(Qout))/(Qin)
Q=CV
2Pi * sqrt(l/g)
(Patm) + (Pgauge)

17. electric field in a distance r from a charge
k|Q|/r^2
L -LCostheta
roegh
(I^2)R

18. formula for power with current and resistance
(V^2)/r
(I^2)R
roeVg
V^2=(Vo)^2 +2a*change in x

19. force a charge in a Bfield
nSintheta=nsintheta
qVB
n(Cv)(deltaT)
elastic collision

20. change in internal energy during a cyclic process
k|Q|/r^2
no force (right hand rule)
0
(No)(wavelength)=(Nn)(new wavelength)

21. adibatic
1/((1/C)+(1/C)..........)
Columbs/second
G M/((d/2)^2)
no heat flow

22. formula to find the absoluate pressure at the bottom of a pool
qVB
0
inelastic collision
(Patm) + (Pgauge)

23. electric potential a distance r from a charge
M(Lf)
KQ/r
sqrt(T/(m/))
m(v^2)/qvB

24. magnification equation
2nt=mwavelength
(Di)/(Do) or (Hi)/(Ho)
no force (right hand rule)
perfectly inelastic collision

25. formula for buoyant force
(Di)/(Do) or (Hi)/(Ho)
roegh
roeVg
E/B

26. formula for efficiency not using work out
hc/wavelength
((Qin) -(Qout))/(Qin)
perfectly inelastic collision
(V^2)/R

27. formula for torque
mgCostheta(mu)d
roegh
KI/r
rF

28. voltage induced in a rod moving through a uniform magnetic field
BLv
-KA
deltaU = deltaQ + deltaW
qV

29. pressure
roeVg
net work = delta K
F/A
1/2wavelength

30. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
J= Ft
qVB
mV -m(Vo)

31. the units of current other than amps
V = (Vo) + at
(V^2)/R
1/4wavelength
Columbs/second

32. first kinematic
V = (Vo) + at
E/B
(N2)/(N1)
mgCostheta(mu)d

33. heat required to change temperature of a substance
constant volume
(N2)/(N1)
d/2
MC(deltaT)

34. the electric force between two objects of charge Q
1/2wavelength
qrB/m
K |q||Q|/r^2
V+IR

35. formula for finding the work function of a metal if the cutoff frequency is known
K |q||Q|/r^2
(hc/wavelength)=h(Fo) +(Vs)
h(Fo)
(I^2)RT

36. new wavelength of light as it enters a new substance
perfectly inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
constant pressure
n(Cv)(deltaT)

37. the units of power other than watts
joules/second
sqrt(T/(m/))
frequency never changes for light problems
Q=CV

38. equation of continuity
perfectly inelastic collision
h(Fo)
.5mV^2 + .5KA^2
AV=(A2)(V2)

39. formula for impluse involving time
J= Ft
(EMF)Rt/10
dSintheta=mwavelength
1/((1/C)+(1/C)..........)

40. force of friction
qV
(Fn)(mu)
M(Lf)
BLv

41. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
M(Lf)
L -LCostheta
no heat flow
qV

42. radius of curvature of a charged particle as it enters a uniform magnetic field
delta x = (Vo)t + .5at^2
roegh
m(v^2)/qvB
h/mv

43. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
e=mc^2
h(Fo)
1/((1/C)+(1/C)..........)
(I^2)RT

44. formula relating voltage and electric field
mV -m(Vo)
Ed=V
G M/((d/2)^2)
elastic collision

45. heat during an isometric process
(No)(wavelength)=(Nn)(new wavelength)
n(Cv)(deltaT)
(V^2)/R
V = (Vo) + at

46. formula for charge stored in a capciator
Q=CV
2Pi * sqrt(l/g)
V^2=(Vo)^2 +2a*change in x
(hc/wavelength)=h(Fo) +(Vs)

47. natural frequency of a closed tube of length L
no force (right hand rule)
1/4wavelength
(Fn)(mu)
e=mc^2

48. formula for impulse involving momentum
mV -m(Vo)
VI
no force (right hand rule)
roegh

49. formula for critical angle
perfectly inelastic collision
(N2)/(N1)
2Pi * sqrt(l/g)
inelastic collision

50. EMF of a battery having internal resistance R
net work = delta K
qV
V+IR
J= Ft