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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. work energy theorum
net work = delta K
sqrt(3KT/m)
frequency never changes for light problems
(1/Do) + (1/Di) = (1/f)

2. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
Ed=V
(EMF)Rt/10
(1/Do) + (1/Di) = (1/f)
.5CV^2 or .5 Q^2/C or .5QV

3. formula for centripetal acceleration
inelastic collision
(3/2)nRdeltaT
deltaU = deltaQ + deltaW
(V^2)/r

4. third kinematic
opposite motion
.5mV^2 + .5KA^2
V^2=(Vo)^2 +2a*change in x
(V^2)/R

5. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
qE
(hc/wavelength)=h(Fo) +(Vs)
.5KA^2
MC(deltaT)

6. magnification equation
(Di)/(Do) or (Hi)/(Ho)
rF
MC(deltaT)
net work = delta K

7. heat required to melt a substance
mgCostheta(mu)d
no heat flow
M(Lf)
K |q||Q|/r^2

8. pressure
F/A
V+IR
n(Cv)(deltaT)
e=mc^2

9. natural frequency of an open tube of length L
frequency never changes for light problems
(Fn)(mu)
1/2wavelength
e=mc^2

10. new frequency of light as it enters a new substance
frequency never changes for light problems
roeVg
qrB/m
joules/second

11. formula for change in internal energy in a cosnstat volume PV process
rF
1/4wavelength
(3/2)nRdeltaT
perfectly inelastic collision

12. formula for constructive interference in a thin membrane with two phase changes
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)
KI/r
2nt=mwavelength

13. units for voltage other than volts
constant pressure
Joules/Columb
frequency never changes for light problems
(N2)/(N1)

14. formula to find the absoluate pressure at the bottom of a pool
rF
V+IR
((Qin) -(Qout))/(Qin)
(Patm) + (Pgauge)

15. isobaric
(Fn)(mu)
qV
constant pressure
nSintheta=nsintheta

16. lens/mirror equation
(3/2)nRdeltaT
(1/Do) + (1/Di) = (1/f)
VI
M(Lf)

17. force of gravity between two objects of mass m
GM*M/(r^2)
k|Q|/r^2
delta x = (Vo)t + .5at^2
sqrt(T/(m/))

18. force a charge in a Bfield
M(Lf)
(V^2)/r
net work = delta K
qVB

19. the electric force between two objects of charge Q
K |q||Q|/r^2
constant volume
Columbs/second
.5CV^2 or .5 Q^2/C or .5QV

20. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
qE
perfectly inelastic collision
(3/2)nRdeltaT

21. formula for power with Voltage and resistance
(V^2)/R
hc/wavelength
F/A
VI

22. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
nSintheta=nsintheta
net work = delta K
J= Ft

23. hooke's law force of a spring
-KA
deltaU -deltaW
GM*M/(r^2)
KI/r

24. formula for constructive interference in a diffraction grating
qrB/m
dSintheta=mwavelength
inelastic collision
constant volume

25. velocity of an electrion as it exitws from the hole
qV
L -LCostheta
qrB/m
1/4wavelength

26. what direction is friction?
opposite motion
no force (right hand rule)
constant volume
FV

27. heat during a cyclic process (net heat)
deltaU -deltaW
sqrt(T/(m/))
net work = delta K
(I^2)R

28. formula for impluse involving time
qrB/m
h/wavelength
J= Ft
mgCostheta(mu)d

29. change in internal energy during a cyclic process
deltaU = deltaQ + deltaW
no force (right hand rule)
KI/r
0

30. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(Wnet)/(Qin)
(I^2)RT
n(Cv)(deltaT)
sqrt(3KT/m)

31. formula for critical angle
J= Ft
frequency never changes for light problems
(N2)/(N1)
sqrt(T/(m/))

32. type of collision where objects stick togerther
perfectly inelastic collision
VI
Joules/Columb
h(Fo)

33. isothermal
1/((1/C)+(1/C)..........)
k|Q|/r^2
no temp change
m(v^2)/qvB

34. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
.5CV^2 or .5 Q^2/C or .5QV
Joules/Columb
m(v^2)/qvB

35. formula for finding magnetic flux
(EMF)Rt/10
.5mV^2 + .5KA^2
BA
Columbs/second

36. heat during an isometric process
n(Cv)(deltaT)
.5mV^2 + .5KA^2
qV
(Patm) + (Pgauge)

37. formula equating energy and mass
J= Ft
rF
e=mc^2
elastic collision

38. equation of continuity
V+IR
L -LCostheta
pL/A
AV=(A2)(V2)

39. the units of power other than watts
h/mv
((Qin) -(Qout))/(Qin)
deltaU -deltaW
joules/second

40. radius of curvature of a charged particle as it enters a uniform magnetic field
(EMF)Rt/10
opposite motion
m(v^2)/qvB
(N2)/(N1)

41. equation for the first law of thermodynamics
opposite motion
deltaU = deltaQ + deltaW
(No)(wavelength)=(Nn)(new wavelength)
(V^2)/R

42. formula for power with current and voltage
VI
(V^2)/r
(hc/wavelength)=h(Fo) +(Vs)
J= Ft

43. natural frequency of a closed tube of length L
1/4wavelength
(1/Do) + (1/Di) = (1/f)
qrB/m
L -LCostheta

44. formula for impulse involving momentum
L -LCostheta
mV -m(Vo)
1/4wavelength
((Th) -(Tl))/(Th)

45. focal length of a mirror with radius d
-KA
V = (Vo) + at
.5CV^2 or .5 Q^2/C or .5QV
d/2

46. force of friction
n(Cv)(deltaT)
dSintheta=mwavelength
Q=CV
(Fn)(mu)

47. snells law
K |q||Q|/r^2
KI/r
no temp change
nSintheta=nsintheta

48. formula for efficiency of a heat engine using work out
G M/((d/2)^2)
deltaU -deltaW
qV
(Wnet)/(Qin)

49. velocity of waves on a string if tension is known
((Qin) -(Qout))/(Qin)
FV
sqrt(T/(m/))
mV -m(Vo)

50. the units of current other than amps
mV -m(Vo)
KQ/r
((Qin) -(Qout))/(Qin)
Columbs/second