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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. heat during a cyclic process (net heat)
deltaU -deltaW
delta x = (Vo)t + .5at^2
(V^2)/R
1/4wavelength

2. change in internal energy during a cyclic process
0
mV -m(Vo)
1/((1/C)+(1/C)..........)
no force (right hand rule)

3. velocity of an electrion as it exitws from the hole
(1/Do) + (1/Di) = (1/f)
qrB/m
(3/2)nRdeltaT
((Th) -(Tl))/(Th)

4. energy stored in a capacitor
(V^2)/r
n(Cv)(deltaT)
.5CV^2 or .5 Q^2/C or .5QV
(Patm) + (Pgauge)

5. forgotten power equation
-KA
Joules/Columb
FV
(Patm) + (Pgauge)

6. formula for power with current and voltage
1/((1/C)+(1/C)..........)
(V^2)/R
h(Fo)
VI

7. isothermal
Joules/Columb
frequency never changes for light problems
no heat flow
no temp change

8. the units of current other than amps
(hc/wavelength)=h(Fo) +(Vs)
Columbs/second
.5mV^2 + .5KA^2
(3/2)nRdeltaT

9. resistance of a wire
d/2
V^2=(Vo)^2 +2a*change in x
1/((1/C)+(1/C)..........)
pL/A

10. snells law
inelastic collision
1/((1/C)+(1/C)..........)
nSintheta=nsintheta
(EMF)Rt/10

11. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
h/wavelength
V = (Vo) + at
1/((1/C)+(1/C)..........)

12. formula for charge stored in a capciator
nSintheta=nsintheta
.5CV^2 or .5 Q^2/C or .5QV
Q=CV
0

13. isobaric
MC(deltaT)
constant pressure
qE
(V^2)/R

14. force a charge in a Bfield
(EMF)Rt/10
qVB
inelastic collision
(3/2)nRdeltaT

15. formula for efficiency of a heat engine using work out
deltaU -deltaW
qrB/m
BLv
(Wnet)/(Qin)

16. natural frequency of a closed tube of length L
sqrt(T/(m/))
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)
-KA

17. force of gravity between two objects of mass m
k|Q|/r^2
h(Fo)
delta x = (Vo)t + .5at^2
GM*M/(r^2)

18. formula for power with current and resistance
h/wavelength
qE
(I^2)R
.5CV^2 or .5 Q^2/C or .5QV

19. type of collision where K is conserved
Ed=V
elastic collision
qrB/m
joules/second

20. formula to find the gauge pressure at the bottom of a pool
-KA
roeVg
KQ/r
roegh

21. velocity of waves on a string if tension is known
hc/wavelength
nSintheta=nsintheta
sqrt(T/(m/))
AV=(A2)(V2)

22. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
(Fn)(mu)
1/2wavelength
1/4wavelength

23. hooke's law force of a spring
M(Lf)
-KA
KI/r
m(v^2)/qvB

24. formula relating voltage and electric field
n(Cv)(deltaT)
elastic collision
MC(deltaT)
Ed=V

25. adibatic
no heat flow
FV
(1/Do) + (1/Di) = (1/f)
(EMF)Rt/10

26. equation of continuity
roeVg
0
AV=(A2)(V2)
inelastic collision

27. type of collision where K is not conserved
(No)(wavelength)=(Nn)(new wavelength)
(I^2)R
sqrt(T/(m/))
inelastic collision

28. formula for finding the momentum of a photon
h/wavelength
V = (Vo) + at
MC(deltaT)
net work = delta K

29. energy of a photon if wavelength is known
hc/wavelength
no heat flow
net work = delta K
(V^2)/r

30. formula for impluse involving time
qrB/m
J= Ft
(I^2)R
constant volume

31. formula for finding magnetic flux
1/4wavelength
.5KA^2
BA
F/A

32. formula for finding the work function of a metal if the cutoff frequency is known
MC(deltaT)
qE
h(Fo)
(Di)/(Do) or (Hi)/(Ho)

33. new frequency of light as it enters a new substance
(Fn)(mu)
((Th) -(Tl))/(Th)
qVB
frequency never changes for light problems

34. electric potential a distance r from a charge
KQ/r
V^2=(Vo)^2 +2a*change in x
deltaU -deltaW
VI

35. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(I^2)RT
qE
h/wavelength

36. formula for buoyant force
MC(deltaT)
roeVg
sqrt(T/(m/))
2nt=mwavelength

37. force of friction
inelastic collision
(Fn)(mu)
h(Fo)
V+IR

38. formula for energy of a spring mass when spring is at maximum displacement
((Th) -(Tl))/(Th)
roegh
0
.5KA^2

39. new wavelength of light as it enters a new substance
K |q||Q|/r^2
(No)(wavelength)=(Nn)(new wavelength)
sqrt(T/(m/))
h/mv

40. force of frction on an incline
no heat flow
(V^2)/R
(1/Do) + (1/Di) = (1/f)
mgCostheta(mu)d

41. formula for critical angle
qE
(Wnet)/(Qin)
sqrt(3KT/m)
(N2)/(N1)

42. formula for constructive interference in a diffraction grating
BLv
joules/second
dSintheta=mwavelength
GM*M/(r^2)

43. the force on a charge in an electric field
qE
sqrt(T/(m/))
E/B
(No)(wavelength)=(Nn)(new wavelength)

44. equation for the first law of thermodynamics
.5mV^2 + .5KA^2
h(Fo)
deltaU = deltaQ + deltaW
(I^2)R

45. the electric force between two objects of charge Q
V^2=(Vo)^2 +2a*change in x
Q=CV
e=mc^2
K |q||Q|/r^2

46. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
m(v^2)/qvB
elastic collision
perfectly inelastic collision
(I^2)RT

47. 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/Do) + (1/Di) = (1/f)
(hc/wavelength)=h(Fo) +(Vs)
(Patm) + (Pgauge)
qV

48. what direction is friction?
(3/2)nRdeltaT
sqrt(T/(m/))
opposite motion
V^2=(Vo)^2 +2a*change in x

49. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
1/2wavelength
dSintheta=mwavelength
E/B

50. second kinematic
delta x = (Vo)t + .5at^2
nSintheta=nsintheta
J= Ft
((Qin) -(Qout))/(Qin)