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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. resistance of a wire
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
pL/A
(Patm) + (Pgauge)

2. the electric force between two objects of charge Q
qrB/m
inelastic collision
K |q||Q|/r^2
n(Cv)(deltaT)

3. heat during an isometric process
no force (right hand rule)
n(Cv)(deltaT)
nSintheta=nsintheta
frequency never changes for light problems

4. formula for impulse involving momentum
mV -m(Vo)
VI
(3/2)nRdeltaT
inelastic collision

5. formula to find the absoluate pressure at the bottom of a pool
rF
(Patm) + (Pgauge)
(No)(wavelength)=(Nn)(new wavelength)
Q=CV

6. velocity of an electrion as it exitws from the hole
k|Q|/r^2
V^2=(Vo)^2 +2a*change in x
qrB/m
deltaU = deltaQ + deltaW

7. formula for the wavelength (debroglie wavelength) of a moving particle
VI
(Di)/(Do) or (Hi)/(Ho)
h/mv
(I^2)RT

8. isothermal
1/4wavelength
1/2wavelength
roeVg
no temp change

9. adibatic
mgCostheta(mu)d
no heat flow
Columbs/second
(I^2)R

10. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
V+IR
qV
qE

11. forgotten power equation
FV
Q=CV
frequency never changes for light problems
roeVg

12. force of frction on an incline
mgCostheta(mu)d
dSintheta=mwavelength
frequency never changes for light problems
Q=CV

13. the units of power other than watts
Ed=V
joules/second
qV
(I^2)RT

14. formula for period of a pendulum
.5mV^2 + .5KA^2
Columbs/second
mgCostheta(mu)d
2Pi * sqrt(l/g)

15. electric field in a distance r from a charge
K |q||Q|/r^2
m(v^2)/qvB
k|Q|/r^2
rF

16. energy stored in a capacitor
net work = delta K
.5CV^2 or .5 Q^2/C or .5QV
nSintheta=nsintheta
no force (right hand rule)

17. force a charge in a Bfield
(N2)/(N1)
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)
qVB

18. formula for finding magnetic flux
h/wavelength
BLv
BA
(EMF)Rt/10

19. formula for height of the block (at the start of a pendulum string) in terms of theta and L
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)
perfectly inelastic collision
L -LCostheta

20. formula for charge stored in a capciator
k|Q|/r^2
frequency never changes for light problems
joules/second
Q=CV

21. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
AV=(A2)(V2)
(V^2)/R
(I^2)RT
(hc/wavelength)=h(Fo) +(Vs)

22. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
M(Lf)
(Di)/(Do) or (Hi)/(Ho)
qV
V = (Vo) + at

23. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
1/((1/C)+(1/C)..........)
roeVg
.5CV^2 or .5 Q^2/C or .5QV

24. formula for impluse involving time
.5KA^2
qE
J= Ft
(Wnet)/(Qin)

25. second kinematic
qE
delta x = (Vo)t + .5at^2
FV
E/B

26. formula equating energy and mass
(1/Do) + (1/Di) = (1/f)
no temp change
e=mc^2
BA

27. formula for constructive interference in a diffraction grating
constant volume
1/4wavelength
dSintheta=mwavelength
sqrt(T/(m/))

28. natural frequency of an open tube of length L
K |q||Q|/r^2
n(Cv)(deltaT)
qE
1/2wavelength

29. equation for the first law of thermodynamics
h(Fo)
deltaU = deltaQ + deltaW
AV=(A2)(V2)
rF

30. formula for power with current and resistance
(I^2)R
qVB
J= Ft
(Wnet)/(Qin)

31. electric potential a distance r from a charge
KQ/r
K |q||Q|/r^2
BA
h/mv

32. first kinematic
sqrt(3KT/m)
Joules/Columb
constant volume
V = (Vo) + at

33. force of friction
(1/Do) + (1/Di) = (1/f)
KI/r
Joules/Columb
(Fn)(mu)

34. formula for change in internal energy in a cosnstat volume PV process
net work = delta K
BA
(3/2)nRdeltaT
GM*M/(r^2)

35. the force on a charge in an electric field
elastic collision
K |q||Q|/r^2
(Wnet)/(Qin)
qE

36. type of collision where K is conserved
V = (Vo) + at
Columbs/second
elastic collision
(V^2)/r

37. third kinematic
GM*M/(r^2)
K |q||Q|/r^2
V^2=(Vo)^2 +2a*change in x
(I^2)R

38. force of gravity between two objects of mass m
1/2wavelength
roeVg
deltaU -deltaW
GM*M/(r^2)

39. pressure
FV
1/4wavelength
F/A
no temp change

40. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
KI/r
G M/((d/2)^2)
.5mV^2 + .5KA^2
GM*M/(r^2)

41. work energy theorum
pL/A
VI
rF
net work = delta K

42. EMF of a battery having internal resistance R
roegh
1/2wavelength
M(Lf)
V+IR

43. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
frequency never changes for light problems
.5KA^2
1/4wavelength
(EMF)Rt/10

44. formula for finding the magnetic field a distance r from a current carrying wire
mgCostheta(mu)d
M(Lf)
pL/A
KI/r

45. radius of curvature of a charged particle as it enters a uniform magnetic field
(I^2)R
roeVg
1/2wavelength
m(v^2)/qvB

46. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
Joules/Columb
k|Q|/r^2
2nt=mwavelength

47. natural frequency of a closed tube of length L
Q=CV
(V^2)/R
(Wnet)/(Qin)
1/4wavelength

48. what direction is friction?
m(v^2)/qvB
dSintheta=mwavelength
deltaU -deltaW
opposite motion

49. formula for finding the work function of a metal if the cutoff frequency is known
MC(deltaT)
net work = delta K
h(Fo)
KI/r

50. voltage induced in a rod moving through a uniform magnetic field
roeVg
BLv
1/4wavelength
rF