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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.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. force a charge in a Bfield
KI/r
(No)(wavelength)=(Nn)(new wavelength)
qVB
hc/wavelength

2. total capacitance of capacitors in series
AV=(A2)(V2)
K |q||Q|/r^2
1/((1/C)+(1/C)..........)
frequency never changes for light problems

3. heat during an isometric process
n(Cv)(deltaT)
GM*M/(r^2)
delta x = (Vo)t + .5at^2
(V^2)/R

4. formula for finding magnetic flux
K |q||Q|/r^2
roegh
BA
roeVg

5. the units of power other than watts
joules/second
(Patm) + (Pgauge)
mgCostheta(mu)d
(EMF)Rt/10

6. formula to find the gauge pressure at the bottom of a pool
qV
K |q||Q|/r^2
constant volume
roegh

7. energy of a photon if wavelength is known
hc/wavelength
h(Fo)
pL/A
dSintheta=mwavelength

8. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
KI/r
G M/((d/2)^2)
elastic collision

9. formula for critical angle
(N2)/(N1)
(I^2)RT
n(Cv)(deltaT)
joules/second

10. formula for height of the block (at the start of a pendulum string) in terms of theta and L
constant pressure
L -LCostheta
Joules/Columb
VI

11. work energy theorum
n(Cv)(deltaT)
(Di)/(Do) or (Hi)/(Ho)
2Pi * sqrt(l/g)
net work = delta K

12. EMF of a battery having internal resistance R
(No)(wavelength)=(Nn)(new wavelength)
1/4wavelength
d/2
V+IR

13. equation of continuity
AV=(A2)(V2)
FV
(V^2)/r
constant pressure

14. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(Patm) + (Pgauge)
(Wnet)/(Qin)
.5mV^2 + .5KA^2
L -LCostheta

15. formula relating voltage and electric field
qV
Ed=V
(V^2)/r
J= Ft

16. force of friction
mV -m(Vo)
1/4wavelength
BA
(Fn)(mu)

17. heat required to melt a substance
qV
(No)(wavelength)=(Nn)(new wavelength)
M(Lf)
sqrt(T/(m/))

18. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
opposite motion
n(Cv)(deltaT)
no temp change
G M/((d/2)^2)

19. voltage induced in a rod moving through a uniform magnetic field
(Patm) + (Pgauge)
0
BLv
delta x = (Vo)t + .5at^2

20. natural frequency of an open tube of length L
J= Ft
(No)(wavelength)=(Nn)(new wavelength)
(1/Do) + (1/Di) = (1/f)
1/2wavelength

21. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
sqrt(3KT/m)
(Patm) + (Pgauge)
sqrt(T/(m/))

22. change in internal energy during a cyclic process
0
(V^2)/r
joules/second
qV

23. type of collision where objects stick togerther
perfectly inelastic collision
M(Lf)
inelastic collision
d/2

24. heat required to change temperature of a substance
roegh
(Fn)(mu)
no force (right hand rule)
MC(deltaT)

25. formula for power with Voltage and resistance
V = (Vo) + at
deltaU = deltaQ + deltaW
((Qin) -(Qout))/(Qin)
(V^2)/R

26. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
mgCostheta(mu)d
no force (right hand rule)
joules/second

27. type of collision where K is conserved
elastic collision
BLv
J= Ft
delta x = (Vo)t + .5at^2

28. formula equating energy and mass
e=mc^2
m(v^2)/qvB
V = (Vo) + at
nSintheta=nsintheta

29. magnification equation
(Di)/(Do) or (Hi)/(Ho)
1/((1/C)+(1/C)..........)
dSintheta=mwavelength
qE

30. new frequency of light as it enters a new substance
frequency never changes for light problems
no force (right hand rule)
k|Q|/r^2
delta x = (Vo)t + .5at^2

31. isobaric
J= Ft
d/2
(I^2)R
constant pressure

32. formula for energy of a spring mass when spring is at maximum displacement
rF
e=mc^2
.5KA^2
hc/wavelength

33. force of gravity between two objects of mass m
((Th) -(Tl))/(Th)
GM*M/(r^2)
F/A
hc/wavelength

34. isometric
sqrt(3KT/m)
deltaU -deltaW
constant volume
((Th) -(Tl))/(Th)

35. snells law
pL/A
nSintheta=nsintheta
K |q||Q|/r^2
joules/second

36. lens/mirror equation
sqrt(T/(m/))
qVB
(1/Do) + (1/Di) = (1/f)
-KA

37. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
0
qV
sqrt(T/(m/))
K |q||Q|/r^2

38. natural frequency of a closed tube of length L
n(Cv)(deltaT)
Ed=V
1/4wavelength
(Di)/(Do) or (Hi)/(Ho)

39. velocity of waves on a string if tension is known
sqrt(T/(m/))
.5CV^2 or .5 Q^2/C or .5QV
dSintheta=mwavelength
rF

40. focal length of a mirror with radius d
opposite motion
rF
G M/((d/2)^2)
d/2

41. formula for centripetal acceleration
(V^2)/r
mV -m(Vo)
(1/Do) + (1/Di) = (1/f)
n(Cv)(deltaT)

42. formula for finding the momentum of a photon
elastic collision
h/wavelength
frequency never changes for light problems
FV

43. formula for constructive interference in a thin membrane with two phase changes
AV=(A2)(V2)
k|Q|/r^2
d/2
2nt=mwavelength

44. formula for constructive interference in a diffraction grating
sqrt(3KT/m)
k|Q|/r^2
-KA
dSintheta=mwavelength

45. energy stored in a capacitor
sqrt(3KT/m)
.5CV^2 or .5 Q^2/C or .5QV
((Th) -(Tl))/(Th)
deltaU -deltaW

46. hooke's law force of a spring
Columbs/second
2Pi * sqrt(l/g)
V^2=(Vo)^2 +2a*change in x
-KA

47. pressure
F/A
Columbs/second
1/4wavelength
.5KA^2

48. formula for period of a pendulum
no temp change
2Pi * sqrt(l/g)
1/4wavelength
delta x = (Vo)t + .5at^2

49. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
.5mV^2 + .5KA^2
E/B
(V^2)/R
no temp change

50. units for voltage other than volts
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
no temp change
G M/((d/2)^2)