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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. first kinematic
V = (Vo) + at
J= Ft
(N2)/(N1)
(No)(wavelength)=(Nn)(new wavelength)

2. formula for Carnot efficiency
((Th) -(Tl))/(Th)
1/((1/C)+(1/C)..........)
(V^2)/r
Columbs/second

3. new frequency of light as it enters a new substance
rF
G M/((d/2)^2)
FV
frequency never changes for light problems

4. formula for finding the magnetic field a distance r from a current carrying wire
BLv
KI/r
(V^2)/R
n(Cv)(deltaT)

5. electric potential a distance r from a charge
sqrt(T/(m/))
KQ/r
Joules/Columb
hc/wavelength

6. work energy theorum
.5mV^2 + .5KA^2
Columbs/second
net work = delta K
constant volume

7. force of friction
frequency never changes for light problems
V^2=(Vo)^2 +2a*change in x
2Pi * sqrt(l/g)
(Fn)(mu)

8. isothermal
mgCostheta(mu)d
net work = delta K
constant pressure
no temp change

9. energy stored in a capacitor
Ed=V
.5CV^2 or .5 Q^2/C or .5QV
E/B
elastic collision

10. the units of current other than amps
Columbs/second
VI
n(Cv)(deltaT)
(Fn)(mu)

11. heat required to melt a substance
KI/r
rF
M(Lf)
(Di)/(Do) or (Hi)/(Ho)

12. the units of power other than watts
perfectly inelastic collision
(V^2)/r
n(Cv)(deltaT)
joules/second

13. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
Columbs/second
(hc/wavelength)=h(Fo) +(Vs)
opposite motion

14. formula for impulse involving momentum
BLv
nSintheta=nsintheta
mV -m(Vo)
K |q||Q|/r^2

15. formula for centripetal acceleration
qV
Columbs/second
VI
(V^2)/r

16. magnification equation
V = (Vo) + at
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
M(Lf)

17. new wavelength of light as it enters a new substance
M(Lf)
Ed=V
hc/wavelength
(No)(wavelength)=(Nn)(new wavelength)

18. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
.5mV^2 + .5KA^2
e=mc^2
(3/2)nRdeltaT

19. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
GM*M/(r^2)
d/2
(I^2)RT
deltaU -deltaW

20. velocity of waves on a string if tension is known
V+IR
(3/2)nRdeltaT
sqrt(T/(m/))
h(Fo)

21. formula to find the absoluate pressure at the bottom of a pool
V = (Vo) + at
deltaU -deltaW
Q=CV
(Patm) + (Pgauge)

22. pressure
0
no heat flow
(Patm) + (Pgauge)
F/A

23. voltage induced in a rod moving through a uniform magnetic field
BLv
1/((1/C)+(1/C)..........)
e=mc^2
mgCostheta(mu)d

24. change in internal energy during a cyclic process
0
pL/A
Joules/Columb
BLv

25. formula for charge stored in a capciator
(I^2)RT
Q=CV
((Qin) -(Qout))/(Qin)
((Th) -(Tl))/(Th)

26. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
AV=(A2)(V2)
h/wavelength

27. formula for period of a pendulum
2Pi * sqrt(l/g)
(hc/wavelength)=h(Fo) +(Vs)
(3/2)nRdeltaT
BLv

28. resistance of a wire
V = (Vo) + at
(Wnet)/(Qin)
0
pL/A

29. natural frequency of a closed tube of length L
frequency never changes for light problems
(I^2)RT
qV
1/4wavelength

30. hooke's law force of a spring
KQ/r
-KA
deltaU = deltaQ + deltaW
(N2)/(N1)

31. equation of continuity
(Wnet)/(Qin)
AV=(A2)(V2)
.5CV^2 or .5 Q^2/C or .5QV
e=mc^2

32. heat required to change temperature of a substance
MC(deltaT)
1/2wavelength
m(v^2)/qvB
2nt=mwavelength

33. the force on a charge in an electric field
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
h/mv
qE

34. formula for efficiency not using work out
BLv
opposite motion
((Qin) -(Qout))/(Qin)
constant pressure

35. formula relating voltage and electric field
h/mv
Ed=V
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x

36. snells law
V^2=(Vo)^2 +2a*change in x
delta x = (Vo)t + .5at^2
nSintheta=nsintheta
E/B

37. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
V^2=(Vo)^2 +2a*change in x
(V^2)/R
AV=(A2)(V2)

38. velocity of a molecule of gas
joules/second
sqrt(3KT/m)
qV
(Wnet)/(Qin)

39. heat during an isometric process
n(Cv)(deltaT)
(V^2)/R
Ed=V
joules/second

40. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
inelastic collision
GM*M/(r^2)
joules/second

41. natural frequency of an open tube of length L
(Patm) + (Pgauge)
constant pressure
((Qin) -(Qout))/(Qin)
1/2wavelength

42. formula for constructive interference in a thin membrane with two phase changes
MC(deltaT)
V+IR
2nt=mwavelength
Ed=V

43. type of collision where objects stick togerther
perfectly inelastic collision
deltaU -deltaW
qV
(Patm) + (Pgauge)

44. isobaric
inelastic collision
J= Ft
frequency never changes for light problems
constant pressure

45. EMF of a battery having internal resistance R
V+IR
inelastic collision
m(v^2)/qvB
roeVg

46. the force on a charge moving parallel to a magnetic field
((Th) -(Tl))/(Th)
(Patm) + (Pgauge)
sqrt(3KT/m)
no force (right hand rule)

47. formula for critical angle
Ed=V
(N2)/(N1)
no heat flow
qV

48. formula to find the gauge pressure at the bottom of a pool
E/B
AV=(A2)(V2)
roegh
h/mv

49. focal length of a mirror with radius d
deltaU = deltaQ + deltaW
Ed=V
roeVg
d/2

50. energy of a photon if wavelength is known
hc/wavelength
(Patm) + (Pgauge)
frequency never changes for light problems
FV