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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. the units of current other than amps
roeVg
Columbs/second
G M/((d/2)^2)
V = (Vo) + at

2. equation for the first law of thermodynamics
((Th) -(Tl))/(Th)
Ed=V
deltaU = deltaQ + deltaW
2nt=mwavelength

3. snells law
GM*M/(r^2)
mgCostheta(mu)d
e=mc^2
nSintheta=nsintheta

4. formula for finding the momentum of a photon
h/wavelength
d/2
deltaU -deltaW
.5CV^2 or .5 Q^2/C or .5QV

5. formula for impulse involving momentum
1/4wavelength
KQ/r
mV -m(Vo)
opposite motion

6. equation of continuity
Joules/Columb
AV=(A2)(V2)
Ed=V
0

7. velocity of a molecule of gas
qV
no temp change
sqrt(3KT/m)
J= Ft

8. first kinematic
mV -m(Vo)
V = (Vo) + at
K |q||Q|/r^2
.5CV^2 or .5 Q^2/C or .5QV

9. total capacitance of capacitors in series
roegh
1/((1/C)+(1/C)..........)
(No)(wavelength)=(Nn)(new wavelength)
(N2)/(N1)

10. formula for efficiency not using work out
e=mc^2
frequency never changes for light problems
h/wavelength
((Qin) -(Qout))/(Qin)

11. formula relating voltage and electric field
Columbs/second
Ed=V
e=mc^2
hc/wavelength

12. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
roegh
(Fn)(mu)
.5mV^2 + .5KA^2
mV -m(Vo)

13. hooke's law force of a spring
-KA
Joules/Columb
mgCostheta(mu)d
h(Fo)

14. new frequency of light as it enters a new substance
MC(deltaT)
V = (Vo) + at
frequency never changes for light problems
(Fn)(mu)

15. formula for finding the work function of a metal if the cutoff frequency is known
1/((1/C)+(1/C)..........)
h(Fo)
V = (Vo) + at
h/wavelength

16. isobaric
hc/wavelength
-KA
constant pressure
E/B

17. formula for charge stored in a capciator
AV=(A2)(V2)
(No)(wavelength)=(Nn)(new wavelength)
BLv
Q=CV

18. type of collision where objects stick togerther
(No)(wavelength)=(Nn)(new wavelength)
((Qin) -(Qout))/(Qin)
.5CV^2 or .5 Q^2/C or .5QV
perfectly inelastic collision

19. the force on a charge in an electric field
mgCostheta(mu)d
GM*M/(r^2)
qE
frequency never changes for light problems

20. type of collision where K is conserved
elastic collision
L -LCostheta
(1/Do) + (1/Di) = (1/f)
V = (Vo) + at

21. the units of power other than watts
joules/second
(V^2)/R
n(Cv)(deltaT)
VI

22. formula for finding magnetic flux
BA
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)
h/mv

23. what direction is friction?
opposite motion
BA
VI
k|Q|/r^2

24. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
mV -m(Vo)
(EMF)Rt/10
(I^2)RT
KI/r

25. energy of a photon if wavelength is known
qE
rF
hc/wavelength
.5CV^2 or .5 Q^2/C or .5QV

26. voltage induced in a rod moving through a uniform magnetic field
K |q||Q|/r^2
BLv
((Th) -(Tl))/(Th)
e=mc^2

27. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
1/((1/C)+(1/C)..........)
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV

28. formula for torque
qVB
rF
roeVg
no force (right hand rule)

29. type of collision where K is not conserved
BA
inelastic collision
qrB/m
K |q||Q|/r^2

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
G M/((d/2)^2)
(I^2)RT
(EMF)Rt/10
sqrt(3KT/m)

31. adibatic
(V^2)/R
h/mv
(EMF)Rt/10
no heat flow

32. units for voltage other than volts
Joules/Columb
VI
rF
E/B

33. EMF of a battery having internal resistance R
1/4wavelength
AV=(A2)(V2)
V+IR
(V^2)/r

34. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
h/mv
.5CV^2 or .5 Q^2/C or .5QV
G M/((d/2)^2)
qVB

35. natural frequency of a closed tube of length L
no heat flow
1/4wavelength
qrB/m
VI

36. the force on a charge moving parallel to a magnetic field
(V^2)/R
joules/second
no force (right hand rule)
.5CV^2 or .5 Q^2/C or .5QV

37. formula for impluse involving time
J= Ft
(EMF)Rt/10
(Patm) + (Pgauge)
2Pi * sqrt(l/g)

38. electric field in a distance r from a charge
BLv
pL/A
k|Q|/r^2
delta x = (Vo)t + .5at^2

39. formula for buoyant force
d/2
Ed=V
BLv
roeVg

40. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(N2)/(N1)
constant volume
(hc/wavelength)=h(Fo) +(Vs)
BA

41. heat during a cyclic process (net heat)
no force (right hand rule)
mV -m(Vo)
deltaU -deltaW
(Fn)(mu)

42. formula for Carnot efficiency
k|Q|/r^2
e=mc^2
((Th) -(Tl))/(Th)
(EMF)Rt/10

43. velocity of an electrion as it exitws from the hole
qrB/m
((Qin) -(Qout))/(Qin)
mgCostheta(mu)d
J= Ft

44. formula for centripetal acceleration
(hc/wavelength)=h(Fo) +(Vs)
(I^2)R
(V^2)/r
E/B

45. work energy theorum
constant pressure
net work = delta K
h/mv
Columbs/second

46. formula to find the absoluate pressure at the bottom of a pool
0
(Patm) + (Pgauge)
d/2
(Wnet)/(Qin)

47. forgotten power equation
V+IR
K |q||Q|/r^2
FV
1/((1/C)+(1/C)..........)

48. formula to find the gauge pressure at the bottom of a pool
(I^2)R
roegh
L -LCostheta
GM*M/(r^2)

49. new wavelength of light as it enters a new substance
GM*M/(r^2)
AV=(A2)(V2)
(No)(wavelength)=(Nn)(new wavelength)
KI/r

50. formula for power with current and voltage
(N2)/(N1)
d/2
(Di)/(Do) or (Hi)/(Ho)
VI