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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.
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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 impluse involving time
delta x = (Vo)t + .5at^2
J= Ft
V = (Vo) + at
KI/r

2. force of frction on an incline
pL/A
mgCostheta(mu)d
rF
(Wnet)/(Qin)

3. the units of current other than amps
GM*M/(r^2)
Columbs/second
-KA
net work = delta K

4. equation of continuity
(3/2)nRdeltaT
rF
2nt=mwavelength
AV=(A2)(V2)

5. work energy theorum
net work = delta K
e=mc^2
qVB
h/wavelength

6. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(1/Do) + (1/Di) = (1/f)
perfectly inelastic collision
deltaU -deltaW
L -LCostheta

7. first kinematic
(Di)/(Do) or (Hi)/(Ho)
n(Cv)(deltaT)
V = (Vo) + at
qVB

8. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
((Qin) -(Qout))/(Qin)
delta x = (Vo)t + .5at^2
(EMF)Rt/10
1/2wavelength

9. formula for period of a pendulum
mV -m(Vo)
2Pi * sqrt(l/g)
(I^2)RT
net work = delta K

10. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
(1/Do) + (1/Di) = (1/f)
-KA
(Patm) + (Pgauge)

11. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
(3/2)nRdeltaT
constant pressure
MC(deltaT)

12. type of collision where K is not conserved
inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
1/4wavelength
deltaU = deltaQ + deltaW

13. heat during a cyclic process (net heat)
constant pressure
deltaU -deltaW
h/wavelength
(hc/wavelength)=h(Fo) +(Vs)

14. formula for buoyant force
inelastic collision
constant pressure
roeVg
FV

15. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
1/((1/C)+(1/C)..........)
.5mV^2 + .5KA^2
Joules/Columb
qVB

16. isobaric
opposite motion
constant pressure
dSintheta=mwavelength
(hc/wavelength)=h(Fo) +(Vs)

17. formula for finding magnetic flux
roeVg
(1/Do) + (1/Di) = (1/f)
net work = delta K
BA

18. isothermal
e=mc^2
no temp change
(hc/wavelength)=h(Fo) +(Vs)
elastic collision

19. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
qE
L -LCostheta
qVB

20. formula for change in internal energy in a cosnstat volume PV process
FV
e=mc^2
(3/2)nRdeltaT
qV

21. snells law
((Th) -(Tl))/(Th)
pL/A
KQ/r
nSintheta=nsintheta

22. formula for energy of a spring mass when spring is at maximum displacement
((Th) -(Tl))/(Th)
.5KA^2
d/2
V+IR

23. new frequency of light as it enters a new substance
pL/A
Ed=V
m(v^2)/qvB
frequency never changes for light problems

24. heat required to melt a substance
1/((1/C)+(1/C)..........)
qVB
deltaU = deltaQ + deltaW
M(Lf)

25. heat required to change temperature of a substance
MC(deltaT)
qrB/m
constant volume
inelastic collision

26. velocity of a molecule of gas
Joules/Columb
joules/second
sqrt(3KT/m)
(N2)/(N1)

27. change in internal energy during a cyclic process
opposite motion
0
M(Lf)
e=mc^2

28. force a charge in a Bfield
KQ/r
-KA
qVB
deltaU -deltaW

29. formula for charge stored in a capciator
Ed=V
qrB/m
dSintheta=mwavelength
Q=CV

30. formula for power with current and voltage
VI
.5KA^2
roegh
constant volume

31. formula equating energy and mass
GM*M/(r^2)
e=mc^2
(Fn)(mu)
E/B

32. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
(Fn)(mu)
Q=CV
GM*M/(r^2)

33. units for voltage other than volts
Joules/Columb
GM*M/(r^2)
1/2wavelength
m(v^2)/qvB

34. formula for finding the momentum of a photon
J= Ft
qE
h(Fo)
h/wavelength

35. the electric force between two objects of charge Q
qV
K |q||Q|/r^2
VI
M(Lf)

36. isometric
Columbs/second
qV
qVB
constant volume

37. heat during an isometric process
1/4wavelength
n(Cv)(deltaT)
(N2)/(N1)
BA

38. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
mV -m(Vo)
(Wnet)/(Qin)
(I^2)R

39. formula to find the gauge pressure at the bottom of a pool
1/4wavelength
BLv
KI/r
roegh

40. formula for critical angle
1/2wavelength
no temp change
M(Lf)
(N2)/(N1)

41. formula relating voltage and electric field
GM*M/(r^2)
deltaU -deltaW
Ed=V
V = (Vo) + at

42. forgotten power equation
deltaU -deltaW
FV
KQ/r
L -LCostheta

43. voltage induced in a rod moving through a uniform magnetic field
elastic collision
BLv
Joules/Columb
V+IR

44. natural frequency of an open tube of length L
F/A
(Di)/(Do) or (Hi)/(Ho)
1/2wavelength
constant volume

45. formula for efficiency not using work out
V^2=(Vo)^2 +2a*change in x
((Qin) -(Qout))/(Qin)
Q=CV
perfectly inelastic collision

46. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
roegh
mV -m(Vo)
(V^2)/r

47. resistance of a wire
roeVg
(V^2)/R
pL/A
(1/Do) + (1/Di) = (1/f)

48. electric potential a distance r from a charge
F/A
J= Ft
-KA
KQ/r

49. new wavelength of light as it enters a new substance
1/2wavelength
sqrt(3KT/m)
nSintheta=nsintheta
(No)(wavelength)=(Nn)(new wavelength)

50. formula for centripetal acceleration
(V^2)/r
0
((Qin) -(Qout))/(Qin)
1/((1/C)+(1/C)..........)