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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. snells law
nSintheta=nsintheta
V^2=(Vo)^2 +2a*change in x
2nt=mwavelength
no heat flow

2. lens/mirror equation
BLv
GM*M/(r^2)
(1/Do) + (1/Di) = (1/f)
Joules/Columb

3. formula for torque
k|Q|/r^2
0
rF
net work = delta K

4. force a charge in a Bfield
inelastic collision
net work = delta K
qVB
rF

5. the units of power other than watts
joules/second
mgCostheta(mu)d
dSintheta=mwavelength
KQ/r

6. type of collision where K is conserved
h/mv
elastic collision
no force (right hand rule)
inelastic collision

7. heat during an isometric process
mV -m(Vo)
(I^2)RT
(hc/wavelength)=h(Fo) +(Vs)
n(Cv)(deltaT)

8. formula for centripetal acceleration
mgCostheta(mu)d
(Fn)(mu)
elastic collision
(V^2)/r

9. energy of a photon if wavelength is known
(V^2)/R
rF
hc/wavelength
2nt=mwavelength

10. formula relating voltage and electric field
qrB/m
deltaU = deltaQ + deltaW
Ed=V
.5mV^2 + .5KA^2

11. pressure
1/2wavelength
F/A
MC(deltaT)
mgCostheta(mu)d

12. heat during a cyclic process (net heat)
.5CV^2 or .5 Q^2/C or .5QV
(I^2)RT
deltaU -deltaW
VI

13. force of gravity between two objects of mass m
(I^2)RT
nSintheta=nsintheta
GM*M/(r^2)
no heat flow

14. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
Q=CV
Joules/Columb
F/A

15. formula equating energy and mass
n(Cv)(deltaT)
e=mc^2
Columbs/second
MC(deltaT)

16. units for voltage other than volts
L -LCostheta
Q=CV
Joules/Columb
.5KA^2

17. formula for finding the momentum of a photon
FV
2nt=mwavelength
opposite motion
h/wavelength

18. forgotten power equation
1/2wavelength
Q=CV
(hc/wavelength)=h(Fo) +(Vs)
FV

19. the electric force between two objects of charge Q
K |q||Q|/r^2
J= Ft
.5mV^2 + .5KA^2
2Pi * sqrt(l/g)

20. formula for power with current and resistance
(Wnet)/(Qin)
V = (Vo) + at
MC(deltaT)
(I^2)R

21. natural frequency of a closed tube of length L
qVB
(No)(wavelength)=(Nn)(new wavelength)
(Fn)(mu)
1/4wavelength

22. second kinematic
FV
1/4wavelength
joules/second
delta x = (Vo)t + .5at^2

23. the units of current other than amps
L -LCostheta
Columbs/second
h/mv
pL/A

24. formula for the wavelength (debroglie wavelength) of a moving particle
nSintheta=nsintheta
h/mv
1/((1/C)+(1/C)..........)
Columbs/second

25. isobaric
(V^2)/R
(Wnet)/(Qin)
constant pressure
frequency never changes for light problems

26. magnification equation
(Di)/(Do) or (Hi)/(Ho)
deltaU = deltaQ + deltaW
.5CV^2 or .5 Q^2/C or .5QV
no heat flow

27. electric potential a distance r from a charge
GM*M/(r^2)
hc/wavelength
KQ/r
F/A

28. new frequency of light as it enters a new substance
frequency never changes for light problems
G M/((d/2)^2)
h/wavelength
no force (right hand rule)

29. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
(V^2)/R
deltaU -deltaW
(EMF)Rt/10

30. isothermal
frequency never changes for light problems
(Di)/(Do) or (Hi)/(Ho)
no temp change
k|Q|/r^2

31. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(1/Do) + (1/Di) = (1/f)
MC(deltaT)
BLv

32. formula to find the absoluate pressure at the bottom of a pool
1/2wavelength
VI
(Patm) + (Pgauge)
h/mv

33. formula for constructive interference in a thin membrane with two phase changes
h(Fo)
(1/Do) + (1/Di) = (1/f)
2nt=mwavelength
hc/wavelength

34. change in internal energy during a cyclic process
0
1/2wavelength
no force (right hand rule)
elastic collision

35. resistance of a wire
net work = delta K
pL/A
BA
qrB/m

36. formula to find the gauge pressure at the bottom of a pool
roegh
V+IR
h/mv
KI/r

37. EMF of a battery having internal resistance R
(V^2)/R
V+IR
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT

38. type of collision where K is not conserved
nSintheta=nsintheta
inelastic collision
sqrt(T/(m/))
F/A

39. adibatic
no heat flow
Joules/Columb
mgCostheta(mu)d
((Qin) -(Qout))/(Qin)

40. formula for change in internal energy in a cosnstat volume PV process
roegh
(3/2)nRdeltaT
(Wnet)/(Qin)
F/A

41. force of frction on an incline
mgCostheta(mu)d
E/B
qE
(3/2)nRdeltaT

42. radius of curvature of a charged particle as it enters a uniform magnetic field
GM*M/(r^2)
h/wavelength
m(v^2)/qvB
(3/2)nRdeltaT

43. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
E/B
net work = delta K
V = (Vo) + at
qV

44. heat required to melt a substance
mgCostheta(mu)d
M(Lf)
((Th) -(Tl))/(Th)
(hc/wavelength)=h(Fo) +(Vs)

45. what direction is friction?
L -LCostheta
opposite motion
(Patm) + (Pgauge)
elastic collision

46. formula for period of a pendulum
Q=CV
BLv
(V^2)/r
2Pi * sqrt(l/g)

47. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
Columbs/second
hc/wavelength
-KA

48. first kinematic
V = (Vo) + at
E/B
net work = delta K
frequency never changes for light problems

49. force of friction
k|Q|/r^2
qrB/m
h/mv
(Fn)(mu)

50. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
G M/((d/2)^2)
((Th) -(Tl))/(Th)
n(Cv)(deltaT)

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