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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. second kinematic
(hc/wavelength)=h(Fo) +(Vs)
no force (right hand rule)
delta x = (Vo)t + .5at^2
VI

2. formula for critical angle
J= Ft
net work = delta K
(N2)/(N1)
Q=CV

3. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
.5KA^2
elastic collision
net work = delta K

4. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
.5mV^2 + .5KA^2
roegh
Ed=V

5. formula for efficiency of a heat engine using work out
qE
1/((1/C)+(1/C)..........)
(Wnet)/(Qin)
Columbs/second

6. velocity of an electrion as it exitws from the hole
(V^2)/r
qrB/m
inelastic collision
hc/wavelength

7. energy stored in a capacitor
perfectly inelastic collision
(I^2)RT
.5mV^2 + .5KA^2
.5CV^2 or .5 Q^2/C or .5QV

8. formula for finding the momentum of a photon
d/2
KQ/r
h/wavelength
nSintheta=nsintheta

9. the force on a charge in an electric field
qE
roeVg
(Fn)(mu)
Ed=V

10. formula for impulse involving momentum
KQ/r
deltaU -deltaW
h(Fo)
mV -m(Vo)

11. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
elastic collision
M(Lf)
nSintheta=nsintheta

12. third kinematic
Ed=V
V^2=(Vo)^2 +2a*change in x
h(Fo)
((Th) -(Tl))/(Th)

13. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
V+IR
deltaU = deltaQ + deltaW
K |q||Q|/r^2

14. new frequency of light as it enters a new substance
mgCostheta(mu)d
.5KA^2
frequency never changes for light problems
V+IR

15. velocity of waves on a string if tension is known
constant volume
sqrt(T/(m/))
((Qin) -(Qout))/(Qin)
dSintheta=mwavelength

16. 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
pL/A
elastic collision
qV

17. pressure
constant pressure
(EMF)Rt/10
F/A
h/mv

18. heat during a cyclic process (net heat)
-KA
deltaU -deltaW
qV
no force (right hand rule)

19. equation for the first law of thermodynamics
inelastic collision
hc/wavelength
MC(deltaT)
deltaU = deltaQ + deltaW

20. formula for finding magnetic flux
BA
opposite motion
((Th) -(Tl))/(Th)
((Qin) -(Qout))/(Qin)

21. formula equating energy and mass
VI
qV
K |q||Q|/r^2
e=mc^2

22. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qV
L -LCostheta
(N2)/(N1)
M(Lf)

23. isothermal
((Qin) -(Qout))/(Qin)
sqrt(T/(m/))
qrB/m
no temp change

24. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
frequency never changes for light problems
(No)(wavelength)=(Nn)(new wavelength)
.5mV^2 + .5KA^2
V+IR

25. the electric force between two objects of charge Q
delta x = (Vo)t + .5at^2
2Pi * sqrt(l/g)
K |q||Q|/r^2
F/A

26. work energy theorum
.5mV^2 + .5KA^2
net work = delta K
n(Cv)(deltaT)
(I^2)RT

27. velocity of a molecule of gas
.5mV^2 + .5KA^2
sqrt(3KT/m)
rF
(EMF)Rt/10

28. formula for change in internal energy in a cosnstat volume PV process
h(Fo)
(3/2)nRdeltaT
V = (Vo) + at
-KA

29. hooke's law force of a spring
h(Fo)
net work = delta K
-KA
(V^2)/r

30. 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)
Columbs/second
(EMF)Rt/10
(3/2)nRdeltaT

31. type of collision where K is not conserved
V^2=(Vo)^2 +2a*change in x
hc/wavelength
inelastic collision
(Fn)(mu)

32. EMF of a battery having internal resistance R
.5mV^2 + .5KA^2
(hc/wavelength)=h(Fo) +(Vs)
V+IR
BLv

33. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT
k|Q|/r^2
(1/Do) + (1/Di) = (1/f)

34. forgotten power equation
2nt=mwavelength
FV
(EMF)Rt/10
(1/Do) + (1/Di) = (1/f)

35. force a charge in a Bfield
qVB
-KA
1/((1/C)+(1/C)..........)
h(Fo)

36. energy of a photon if wavelength is known
hc/wavelength
1/2wavelength
V^2=(Vo)^2 +2a*change in x
mgCostheta(mu)d

37. units for voltage other than volts
Joules/Columb
-KA
1/((1/C)+(1/C)..........)
G M/((d/2)^2)

38. type of collision where K is conserved
.5mV^2 + .5KA^2
elastic collision
Ed=V
no heat flow

39. isometric
h/wavelength
perfectly inelastic collision
constant volume
KQ/r

40. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
L -LCostheta
.5CV^2 or .5 Q^2/C or .5QV
no force (right hand rule)

41. type of collision where objects stick togerther
Q=CV
.5CV^2 or .5 Q^2/C or .5QV
1/4wavelength
perfectly inelastic collision

42. force of gravity between two objects of mass m
GM*M/(r^2)
(V^2)/r
2nt=mwavelength
FV

43. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
roegh
e=mc^2
2Pi * sqrt(l/g)

44. formula relating voltage and electric field
no heat flow
sqrt(3KT/m)
Ed=V
(Patm) + (Pgauge)

45. isobaric
constant pressure
constant volume
M(Lf)
h/mv

46. formula for the wavelength (debroglie wavelength) of a moving particle
no temp change
((Th) -(Tl))/(Th)
h/mv
net work = delta K

47. change in internal energy during a cyclic process
(3/2)nRdeltaT
opposite motion
.5CV^2 or .5 Q^2/C or .5QV
0

48. heat during an isometric process
mV -m(Vo)
n(Cv)(deltaT)
(EMF)Rt/10
2nt=mwavelength

49. voltage induced in a rod moving through a uniform magnetic field
1/2wavelength
no temp change
BLv
(hc/wavelength)=h(Fo) +(Vs)

50. electric field in a distance r from a charge
Ed=V
k|Q|/r^2
G M/((d/2)^2)
V = (Vo) + at