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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
constant volume
(Wnet)/(Qin)
(N2)/(N1)
(EMF)Rt/10

2. magnification equation
roeVg
(1/Do) + (1/Di) = (1/f)
(Di)/(Do) or (Hi)/(Ho)
MC(deltaT)

3. velocity of a molecule of gas
sqrt(3KT/m)
(N2)/(N1)
1/((1/C)+(1/C)..........)
perfectly inelastic collision

4. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
1/4wavelength
V^2=(Vo)^2 +2a*change in x
(No)(wavelength)=(Nn)(new wavelength)
qV

5. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
2Pi * sqrt(l/g)

6. formula for finding the magnetic field a distance r from a current carrying wire
(I^2)RT
Ed=V
constant volume
KI/r

7. the units of power other than watts
VI
FV
joules/second
-KA

8. formula for period of a pendulum
Joules/Columb
((Qin) -(Qout))/(Qin)
perfectly inelastic collision
2Pi * sqrt(l/g)

9. heat during a cyclic process (net heat)
deltaU -deltaW
(Patm) + (Pgauge)
((Th) -(Tl))/(Th)
constant volume

10. heat required to change temperature of a substance
-KA
MC(deltaT)
(Fn)(mu)
.5CV^2 or .5 Q^2/C or .5QV

11. hooke's law force of a spring
-KA
joules/second
inelastic collision
Columbs/second

12. radius of curvature of a charged particle as it enters a uniform magnetic field
(Fn)(mu)
m(v^2)/qvB
qVB
K |q||Q|/r^2

13. type of collision where K is not conserved
V = (Vo) + at
inelastic collision
F/A
.5mV^2 + .5KA^2

14. the electric force between two objects of charge Q
V = (Vo) + at
frequency never changes for light problems
K |q||Q|/r^2
hc/wavelength

15. formula to find the absoluate pressure at the bottom of a pool
(3/2)nRdeltaT
qV
sqrt(3KT/m)
(Patm) + (Pgauge)

16. forgotten power equation
FV
(N2)/(N1)
sqrt(3KT/m)
.5mV^2 + .5KA^2

17. isothermal
.5KA^2
(N2)/(N1)
no temp change
Columbs/second

18. new frequency of light as it enters a new substance
joules/second
(Wnet)/(Qin)
deltaU = deltaQ + deltaW
frequency never changes for light problems

19. velocity of an electrion as it exitws from the hole
h(Fo)
no heat flow
qrB/m
qVB

20. formula for torque
m(v^2)/qvB
rF
sqrt(T/(m/))
BLv

21. formula for change in internal energy in a cosnstat volume PV process
V+IR
constant volume
roeVg
(3/2)nRdeltaT

22. force a charge in a Bfield
(Patm) + (Pgauge)
qVB
e=mc^2
M(Lf)

23. new wavelength of light as it enters a new substance
1/2wavelength
Columbs/second
(No)(wavelength)=(Nn)(new wavelength)
Joules/Columb

24. equation of continuity
h/wavelength
AV=(A2)(V2)
(V^2)/r
h/mv

25. formula for critical angle
(N2)/(N1)
qrB/m
2Pi * sqrt(l/g)
((Qin) -(Qout))/(Qin)

26. isobaric
opposite motion
K |q||Q|/r^2
constant pressure
(I^2)RT

27. formula for constructive interference in a diffraction grating
MC(deltaT)
dSintheta=mwavelength
K |q||Q|/r^2
BA

28. energy of a photon if wavelength is known
h/wavelength
BA
hc/wavelength
deltaU -deltaW

29. second kinematic
qVB
((Qin) -(Qout))/(Qin)
sqrt(3KT/m)
delta x = (Vo)t + .5at^2

30. change in internal energy during a cyclic process
E/B
-KA
0
J= Ft

31. natural frequency of an open tube of length L
(I^2)RT
.5KA^2
2nt=mwavelength
1/2wavelength

32. what direction is friction?
rF
1/2wavelength
h/mv
opposite motion

33. formula for impluse involving time
J= Ft
mgCostheta(mu)d
(hc/wavelength)=h(Fo) +(Vs)
.5mV^2 + .5KA^2

34. isometric
k|Q|/r^2
constant volume
2Pi * sqrt(l/g)
(I^2)RT

35. formula relating voltage and electric field
M(Lf)
nSintheta=nsintheta
Ed=V
roeVg

36. work energy theorum
net work = delta K
K |q||Q|/r^2
inelastic collision
pL/A

37. formula for impulse involving momentum
K |q||Q|/r^2
BA
mV -m(Vo)
L -LCostheta

38. formula for finding magnetic flux
GM*M/(r^2)
BA
k|Q|/r^2
Q=CV

39. units for voltage other than volts
MC(deltaT)
V = (Vo) + at
frequency never changes for light problems
Joules/Columb

40. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
GM*M/(r^2)
sqrt(3KT/m)
(hc/wavelength)=h(Fo) +(Vs)
d/2

41. adibatic
(N2)/(N1)
AV=(A2)(V2)
((Qin) -(Qout))/(Qin)
no heat flow

42. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
V+IR
qVB
KI/r

43. formula for buoyant force
roeVg
qVB
L -LCostheta
pL/A

44. force of gravity between two objects of mass m
GM*M/(r^2)
pL/A
d/2
constant volume

45. total capacitance of capacitors in series
VI
.5CV^2 or .5 Q^2/C or .5QV
1/((1/C)+(1/C)..........)
Ed=V

46. resistance of a wire
Joules/Columb
pL/A
VI
1/4wavelength

47. formula for finding the work function of a metal if the cutoff frequency is known
((Th) -(Tl))/(Th)
pL/A
deltaU -deltaW
h(Fo)

48. type of collision where objects stick togerther
AV=(A2)(V2)
perfectly inelastic collision
0
((Th) -(Tl))/(Th)

49. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
opposite motion
no heat flow
.5mV^2 + .5KA^2
(I^2)RT

50. formula for power with current and voltage
(Di)/(Do) or (Hi)/(Ho)
V^2=(Vo)^2 +2a*change in x
VI
sqrt(3KT/m)