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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. formula for power with current and voltage
.5CV^2 or .5 Q^2/C or .5QV
VI
h(Fo)
rF

2. work energy theorum
net work = delta K
AV=(A2)(V2)
FV
inelastic collision

3. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
BA
KQ/r
mV -m(Vo)
(EMF)Rt/10

4. isometric
.5CV^2 or .5 Q^2/C or .5QV
Columbs/second
net work = delta K
constant volume

5. formula for period of a pendulum
2Pi * sqrt(l/g)
roeVg
h/mv
(I^2)R

6. formula for torque
rF
delta x = (Vo)t + .5at^2
2nt=mwavelength
Ed=V

7. first kinematic
h(Fo)
V = (Vo) + at
Q=CV
V^2=(Vo)^2 +2a*change in x

8. formula for charge stored in a capciator
(Di)/(Do) or (Hi)/(Ho)
Q=CV
L -LCostheta
net work = delta K

9. natural frequency of a closed tube of length L
L -LCostheta
0
net work = delta K
1/4wavelength

10. velocity of a molecule of gas
GM*M/(r^2)
(Fn)(mu)
sqrt(3KT/m)
E/B

11. force of friction
e=mc^2
(Fn)(mu)
1/((1/C)+(1/C)..........)
qV

12. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
rF
(N2)/(N1)
roegh

13. formula for buoyant force
nSintheta=nsintheta
rF
roeVg
1/2wavelength

14. voltage induced in a rod moving through a uniform magnetic field
V+IR
BLv
2nt=mwavelength
pL/A

15. type of collision where K is not conserved
inelastic collision
V+IR
-KA
(N2)/(N1)

16. energy of a photon if wavelength is known
hc/wavelength
GM*M/(r^2)
opposite motion
.5CV^2 or .5 Q^2/C or .5QV

17. force of gravity between two objects of mass m
BLv
GM*M/(r^2)
frequency never changes for light problems
0

18. formula for efficiency not using work out
net work = delta K
(hc/wavelength)=h(Fo) +(Vs)
((Qin) -(Qout))/(Qin)
L -LCostheta

19. formula to find the gauge pressure at the bottom of a pool
qV
n(Cv)(deltaT)
(No)(wavelength)=(Nn)(new wavelength)
roegh

20. magnification equation
(Di)/(Do) or (Hi)/(Ho)
n(Cv)(deltaT)
(No)(wavelength)=(Nn)(new wavelength)
no temp change

21. the units of power other than watts
BLv
joules/second
1/((1/C)+(1/C)..........)
deltaU -deltaW

22. formula for finding magnetic flux
deltaU = deltaQ + deltaW
(I^2)R
BA
rF

23. heat during an isometric process
.5KA^2
n(Cv)(deltaT)
(V^2)/R
2nt=mwavelength

24. formula for impulse involving momentum
0
net work = delta K
qE
mV -m(Vo)

25. force a charge in a Bfield
delta x = (Vo)t + .5at^2
qVB
.5KA^2
Ed=V

26. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
deltaU -deltaW
constant volume
AV=(A2)(V2)

27. formula for Carnot efficiency
sqrt(3KT/m)
((Th) -(Tl))/(Th)
roeVg
Columbs/second

28. heat during a cyclic process (net heat)
deltaU -deltaW
Q=CV
qV
Columbs/second

29. focal length of a mirror with radius d
d/2
qrB/m
((Th) -(Tl))/(Th)
(I^2)RT

30. electric field in a distance r from a charge
constant pressure
FV
k|Q|/r^2
(3/2)nRdeltaT

31. new frequency of light as it enters a new substance
frequency never changes for light problems
Columbs/second
perfectly inelastic collision
qVB

32. formula for the wavelength (debroglie wavelength) of a moving particle
1/2wavelength
h/mv
V^2=(Vo)^2 +2a*change in x
BA

33. the electric force between two objects of charge Q
.5mV^2 + .5KA^2
FV
Columbs/second
K |q||Q|/r^2

34. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
roegh
(No)(wavelength)=(Nn)(new wavelength)
F/A

35. resistance of a wire
hc/wavelength
pL/A
(Wnet)/(Qin)
FV

36. formula for finding the momentum of a photon
.5KA^2
KQ/r
h/wavelength
(hc/wavelength)=h(Fo) +(Vs)

37. type of collision where K is conserved
elastic collision
nSintheta=nsintheta
opposite motion
no temp change

38. isobaric
Columbs/second
2nt=mwavelength
constant pressure
deltaU = deltaQ + deltaW

39. velocity of waves on a string if tension is known
(No)(wavelength)=(Nn)(new wavelength)
BA
qrB/m
sqrt(T/(m/))

40. formula for constructive interference in a diffraction grating
no force (right hand rule)
dSintheta=mwavelength
((Qin) -(Qout))/(Qin)
Ed=V

41. equation of continuity
(EMF)Rt/10
AV=(A2)(V2)
(I^2)R
mgCostheta(mu)d

42. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
h(Fo)
(Fn)(mu)
V+IR

43. formula to find the absoluate pressure at the bottom of a pool
2Pi * sqrt(l/g)
rF
-KA
(Patm) + (Pgauge)

44. the units of current other than amps
KI/r
(No)(wavelength)=(Nn)(new wavelength)
Columbs/second
no force (right hand rule)

45. second kinematic
nSintheta=nsintheta
Ed=V
delta x = (Vo)t + .5at^2
sqrt(T/(m/))

46. isothermal
1/((1/C)+(1/C)..........)
K |q||Q|/r^2
no temp change
L -LCostheta

47. natural frequency of an open tube of length L
FV
1/2wavelength
qVB
h/wavelength

48. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
M(Lf)
(hc/wavelength)=h(Fo) +(Vs)
BLv
qE

49. electric potential a distance r from a charge
m(v^2)/qvB
(1/Do) + (1/Di) = (1/f)
M(Lf)
KQ/r

50. formula for height of the block (at the start of a pendulum string) in terms of theta and L
inelastic collision
(Patm) + (Pgauge)
qV
L -LCostheta