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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. voltage induced in a rod moving through a uniform magnetic field
0
KQ/r
MC(deltaT)
BLv

2. formula for finding magnetic flux
1/2wavelength
BA
(EMF)Rt/10
k|Q|/r^2

3. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
L -LCostheta
nSintheta=nsintheta
FV

4. formula for Carnot efficiency
KI/r
inelastic collision
((Th) -(Tl))/(Th)
-KA

5. formula relating voltage and electric field
Ed=V
constant volume
BLv
h/mv

6. formula for impulse involving momentum
perfectly inelastic collision
(V^2)/R
KI/r
mV -m(Vo)

7. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(hc/wavelength)=h(Fo) +(Vs)
-KA
qV
qE

8. formula for change in internal energy in a cosnstat volume PV process
((Qin) -(Qout))/(Qin)
(V^2)/R
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT

9. type of collision where K is not conserved
constant volume
inelastic collision
(V^2)/R
.5CV^2 or .5 Q^2/C or .5QV

10. formula for power with current and resistance
qVB
(1/Do) + (1/Di) = (1/f)
(I^2)R
(V^2)/r

11. radius of curvature of a charged particle as it enters a uniform magnetic field
dSintheta=mwavelength
joules/second
m(v^2)/qvB
(Di)/(Do) or (Hi)/(Ho)

12. units for voltage other than volts
constant pressure
Joules/Columb
(I^2)RT
((Th) -(Tl))/(Th)

13. snells law
nSintheta=nsintheta
.5KA^2
deltaU -deltaW
BA

14. isometric
F/A
elastic collision
J= Ft
constant volume

15. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
BLv
delta x = (Vo)t + .5at^2
opposite motion

16. formula for power with Voltage and resistance
no temp change
(V^2)/R
qrB/m
2Pi * sqrt(l/g)

17. what direction is friction?
KI/r
1/4wavelength
opposite motion
GM*M/(r^2)

18. formula for finding the work function of a metal if the cutoff frequency is known
frequency never changes for light problems
(Wnet)/(Qin)
Columbs/second
h(Fo)

19. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
BA
GM*M/(r^2)
V^2=(Vo)^2 +2a*change in x

20. force of gravity between two objects of mass m
n(Cv)(deltaT)
GM*M/(r^2)
nSintheta=nsintheta
h(Fo)

21. heat during an isometric process
(1/Do) + (1/Di) = (1/f)
((Th) -(Tl))/(Th)
n(Cv)(deltaT)
((Qin) -(Qout))/(Qin)

22. pressure
rF
F/A
(V^2)/r
E/B

23. forgotten power equation
VI
FV
perfectly inelastic collision
n(Cv)(deltaT)

24. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
opposite motion
rF
delta x = (Vo)t + .5at^2
(EMF)Rt/10

25. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
F/A
G M/((d/2)^2)
n(Cv)(deltaT)
elastic collision

26. formula to find the absoluate pressure at the bottom of a pool
(EMF)Rt/10
deltaU -deltaW
(Patm) + (Pgauge)
hc/wavelength

27. formula for constructive interference in a thin membrane with two phase changes
(EMF)Rt/10
d/2
GM*M/(r^2)
2nt=mwavelength

28. formula for impluse involving time
n(Cv)(deltaT)
J= Ft
((Th) -(Tl))/(Th)
(Fn)(mu)

29. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
mV -m(Vo)
(N2)/(N1)
J= Ft

30. natural frequency of a closed tube of length L
frequency never changes for light problems
1/4wavelength
(1/Do) + (1/Di) = (1/f)
.5CV^2 or .5 Q^2/C or .5QV

31. natural frequency of an open tube of length L
roeVg
KI/r
1/2wavelength
G M/((d/2)^2)

32. work energy theorum
roeVg
h(Fo)
net work = delta K
(N2)/(N1)

33. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
Columbs/second
no force (right hand rule)
-KA

34. force a charge in a Bfield
KQ/r
sqrt(T/(m/))
qVB
(N2)/(N1)

35. formula for energy of a spring mass when spring is at maximum displacement
constant volume
qE
.5KA^2
h/mv

36. the electric force between two objects of charge Q
opposite motion
Q=CV
K |q||Q|/r^2
M(Lf)

37. formula for critical angle
(I^2)RT
(N2)/(N1)
roeVg
.5KA^2

38. energy stored in a capacitor
(Fn)(mu)
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV
MC(deltaT)

39. force of frction on an incline
Joules/Columb
KQ/r
mgCostheta(mu)d
(3/2)nRdeltaT

40. formula for efficiency of a heat engine using work out
constant volume
rF
(Wnet)/(Qin)
1/2wavelength

41. second kinematic
constant volume
delta x = (Vo)t + .5at^2
net work = delta K
joules/second

42. heat required to melt a substance
M(Lf)
mV -m(Vo)
J= Ft
L -LCostheta

43. the units of current other than amps
h(Fo)
(1/Do) + (1/Di) = (1/f)
Columbs/second
0

44. formula for buoyant force
dSintheta=mwavelength
sqrt(3KT/m)
roeVg
qVB

45. isobaric
inelastic collision
constant pressure
n(Cv)(deltaT)
(3/2)nRdeltaT

46. formula for power with current and voltage
.5KA^2
VI
Q=CV
h(Fo)

47. change in internal energy during a cyclic process
FV
0
sqrt(3KT/m)
pL/A

48. adibatic
no heat flow
(Di)/(Do) or (Hi)/(Ho)
Q=CV
.5mV^2 + .5KA^2

49. formula for finding the momentum of a photon
opposite motion
h/wavelength
joules/second
deltaU = deltaQ + deltaW

50. electric potential a distance r from a charge
(3/2)nRdeltaT
KQ/r
-KA
dSintheta=mwavelength