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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. radius of curvature of a charged particle as it enters a uniform magnetic field
hc/wavelength
m(v^2)/qvB
(EMF)Rt/10
VI

2. the force on a charge moving parallel to a magnetic field
(Patm) + (Pgauge)
no force (right hand rule)
net work = delta K
FV

3. new frequency of light as it enters a new substance
BA
2nt=mwavelength
frequency never changes for light problems
qVB

4. formula for efficiency not using work out
V+IR
((Qin) -(Qout))/(Qin)
deltaU -deltaW
sqrt(T/(m/))

5. the units of current other than amps
mgCostheta(mu)d
Columbs/second
sqrt(T/(m/))
hc/wavelength

6. force a charge in a Bfield
.5KA^2
qVB
E/B
mV -m(Vo)

7. lens/mirror equation
mgCostheta(mu)d
(1/Do) + (1/Di) = (1/f)
Ed=V
(I^2)RT

8. equation of continuity
AV=(A2)(V2)
KI/r
m(v^2)/qvB
0

9. isobaric
constant pressure
G M/((d/2)^2)
V+IR
FV

10. formula for critical angle
(N2)/(N1)
V^2=(Vo)^2 +2a*change in x
qV
(Fn)(mu)

11. formula relating voltage and electric field
J= Ft
.5mV^2 + .5KA^2
Ed=V
roegh

12. heat during an isometric process
hc/wavelength
n(Cv)(deltaT)
Columbs/second
.5mV^2 + .5KA^2

13. formula for Carnot efficiency
Ed=V
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems
((Th) -(Tl))/(Th)

14. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
2Pi * sqrt(l/g)
Joules/Columb
.5mV^2 + .5KA^2
mV -m(Vo)

15. formula for finding the magnetic field a distance r from a current carrying wire
AV=(A2)(V2)
e=mc^2
qrB/m
KI/r

16. new wavelength of light as it enters a new substance
h(Fo)
F/A
(V^2)/R
(No)(wavelength)=(Nn)(new wavelength)

17. formula for period of a pendulum
V = (Vo) + at
Joules/Columb
roegh
2Pi * sqrt(l/g)

18. the units of power other than watts
joules/second
no force (right hand rule)
constant volume
deltaU = deltaQ + deltaW

19. natural frequency of an open tube of length L
-KA
1/2wavelength
mV -m(Vo)
V = (Vo) + at

20. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
.5KA^2
L -LCostheta
pL/A
qV

21. units for voltage other than volts
net work = delta K
elastic collision
Joules/Columb
((Qin) -(Qout))/(Qin)

22. first kinematic
frequency never changes for light problems
KI/r
qVB
V = (Vo) + at

23. hooke's law force of a spring
frequency never changes for light problems
nSintheta=nsintheta
Ed=V
-KA

24. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
h(Fo)
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2
G M/((d/2)^2)

25. energy stored in a capacitor
0
.5CV^2 or .5 Q^2/C or .5QV
(Wnet)/(Qin)
(V^2)/R

26. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
net work = delta K
opposite motion
G M/((d/2)^2)
(hc/wavelength)=h(Fo) +(Vs)

27. velocity of an electrion as it exitws from the hole
qrB/m
Q=CV
J= Ft
sqrt(T/(m/))

28. magnification equation
(I^2)R
GM*M/(r^2)
qV
(Di)/(Do) or (Hi)/(Ho)

29. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
qrB/m
e=mc^2
n(Cv)(deltaT)

30. formula to find the gauge pressure at the bottom of a pool
(Fn)(mu)
roegh
qV
.5KA^2

31. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(No)(wavelength)=(Nn)(new wavelength)
net work = delta K
(EMF)Rt/10
constant volume

32. velocity of a molecule of gas
BLv
sqrt(3KT/m)
V+IR
.5KA^2

33. energy of a photon if wavelength is known
elastic collision
((Qin) -(Qout))/(Qin)
hc/wavelength
(V^2)/r

34. formula for centripetal acceleration
(V^2)/r
perfectly inelastic collision
pL/A
h(Fo)

35. formula for finding the momentum of a photon
(3/2)nRdeltaT
no force (right hand rule)
Columbs/second
h/wavelength

36. adibatic
sqrt(3KT/m)
(I^2)RT
no heat flow
KQ/r

37. force of friction
mgCostheta(mu)d
(No)(wavelength)=(Nn)(new wavelength)
Columbs/second
(Fn)(mu)

38. heat during a cyclic process (net heat)
(1/Do) + (1/Di) = (1/f)
deltaU -deltaW
KI/r
(I^2)RT

39. isothermal
no temp change
0
perfectly inelastic collision
n(Cv)(deltaT)

40. electric potential a distance r from a charge
KQ/r
K |q||Q|/r^2
(EMF)Rt/10
(Di)/(Do) or (Hi)/(Ho)

41. type of collision where K is not conserved
(I^2)R
inelastic collision
m(v^2)/qvB
(N2)/(N1)

42. formula for power with current and resistance
.5KA^2
qVB
joules/second
(I^2)R

43. formula for impluse involving time
n(Cv)(deltaT)
(EMF)Rt/10
((Qin) -(Qout))/(Qin)
J= Ft

44. formula for torque
rF
VI
qV
h/wavelength

45. formula for constructive interference in a diffraction grating
(hc/wavelength)=h(Fo) +(Vs)
dSintheta=mwavelength
qV
inelastic collision

46. voltage induced in a rod moving through a uniform magnetic field
0
no heat flow
Q=CV
BLv

47. formula for the wavelength (debroglie wavelength) of a moving particle
e=mc^2
Joules/Columb
h/mv
Ed=V

48. snells law
nSintheta=nsintheta
qE
(hc/wavelength)=h(Fo) +(Vs)
deltaU -deltaW

49. formula for buoyant force
BA
roeVg
MC(deltaT)
2nt=mwavelength

50. pressure
BLv
F/A
(hc/wavelength)=h(Fo) +(Vs)
AV=(A2)(V2)