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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. second kinematic
V = (Vo) + at
opposite motion
constant pressure
delta x = (Vo)t + .5at^2

2. equation for the first law of thermodynamics
V = (Vo) + at
(Fn)(mu)
roeVg
deltaU = deltaQ + deltaW

3. isothermal
no temp change
mgCostheta(mu)d
opposite motion
m(v^2)/qvB

4. change in internal energy during a cyclic process
0
V+IR
qrB/m
G M/((d/2)^2)

5. radius of curvature of a charged particle as it enters a uniform magnetic field
VI
J= Ft
m(v^2)/qvB
KI/r

6. natural frequency of an open tube of length L
elastic collision
sqrt(T/(m/))
(Fn)(mu)
1/2wavelength

7. velocity of an electrion as it exitws from the hole
h(Fo)
qrB/m
sqrt(3KT/m)
J= Ft

8. formula for power with current and voltage
(I^2)RT
n(Cv)(deltaT)
(3/2)nRdeltaT
VI

9. heat during a cyclic process (net heat)
n(Cv)(deltaT)
L -LCostheta
e=mc^2
deltaU -deltaW

10. the units of current other than amps
V^2=(Vo)^2 +2a*change in x
Columbs/second
(Di)/(Do) or (Hi)/(Ho)
(hc/wavelength)=h(Fo) +(Vs)

11. lens/mirror equation
sqrt(3KT/m)
(1/Do) + (1/Di) = (1/f)
((Th) -(Tl))/(Th)
(No)(wavelength)=(Nn)(new wavelength)

12. isometric
AV=(A2)(V2)
d/2
GM*M/(r^2)
constant volume

13. natural frequency of a closed tube of length L
VI
V+IR
(3/2)nRdeltaT
1/4wavelength

14. pressure
(Di)/(Do) or (Hi)/(Ho)
Columbs/second
(Patm) + (Pgauge)
F/A

15. formula for power with Voltage and resistance
(I^2)RT
(V^2)/R
qVB
V+IR

16. formula for power with current and resistance
KI/r
mgCostheta(mu)d
V+IR
(I^2)R

17. formula for finding the magnetic field a distance r from a current carrying wire
(V^2)/r
((Qin) -(Qout))/(Qin)
KI/r
d/2

18. focal length of a mirror with radius d
no temp change
rF
d/2
Ed=V

19. adibatic
no heat flow
constant pressure
(hc/wavelength)=h(Fo) +(Vs)
dSintheta=mwavelength

20. the force on a charge moving parallel to a magnetic field
V+IR
GM*M/(r^2)
no force (right hand rule)
qV

21. formula for finding magnetic flux
BA
k|Q|/r^2
-KA
d/2

22. formula for constructive interference in a thin membrane with two phase changes
L -LCostheta
(EMF)Rt/10
2nt=mwavelength
constant pressure

23. formula to find the gauge pressure at the bottom of a pool
G M/((d/2)^2)
pL/A
deltaU -deltaW
roegh

24. formula for finding the momentum of a photon
frequency never changes for light problems
2Pi * sqrt(l/g)
h/wavelength
constant volume

25. magnification equation
rF
(Di)/(Do) or (Hi)/(Ho)
((Qin) -(Qout))/(Qin)
MC(deltaT)

26. formula for torque
nSintheta=nsintheta
V+IR
VI
rF

27. new frequency of light as it enters a new substance
frequency never changes for light problems
BLv
roegh
rF

28. the force on a charge in an electric field
roeVg
qE
(No)(wavelength)=(Nn)(new wavelength)
roegh

29. force a charge in a Bfield
qVB
qV
Ed=V
(3/2)nRdeltaT

30. formula for impulse involving momentum
2nt=mwavelength
sqrt(3KT/m)
perfectly inelastic collision
mV -m(Vo)

31. formula for finding the work function of a metal if the cutoff frequency is known
1/4wavelength
(Wnet)/(Qin)
h(Fo)
1/((1/C)+(1/C)..........)

32. formula for constructive interference in a diffraction grating
pL/A
dSintheta=mwavelength
sqrt(T/(m/))
(3/2)nRdeltaT

33. formula for Carnot efficiency
E/B
KQ/r
KI/r
((Th) -(Tl))/(Th)

34. formula for efficiency not using work out
(V^2)/R
(hc/wavelength)=h(Fo) +(Vs)
((Qin) -(Qout))/(Qin)
k|Q|/r^2

35. forgotten power equation
FV
(I^2)RT
2Pi * sqrt(l/g)
opposite motion

36. the units of power other than watts
F/A
joules/second
Joules/Columb
perfectly inelastic collision

37. resistance of a wire
(EMF)Rt/10
-KA
pL/A
1/((1/C)+(1/C)..........)

38. type of collision where objects stick togerther
roegh
perfectly inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
(I^2)R

39. formula for change in internal energy in a cosnstat volume PV process
1/2wavelength
V = (Vo) + at
qVB
(3/2)nRdeltaT

40. formula for height of the block (at the start of a pendulum string) in terms of theta and L
no temp change
0
L -LCostheta
h/mv

41. velocity of a molecule of gas
sqrt(3KT/m)
dSintheta=mwavelength
(Wnet)/(Qin)
G M/((d/2)^2)

42. first kinematic
V = (Vo) + at
mgCostheta(mu)d
frequency never changes for light problems
1/4wavelength

43. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
AV=(A2)(V2)
1/4wavelength
(EMF)Rt/10

44. type of collision where K is conserved
qE
(No)(wavelength)=(Nn)(new wavelength)
elastic collision
V = (Vo) + at

45. heat required to change temperature of a substance
(I^2)RT
MC(deltaT)
hc/wavelength
J= Ft

46. formula equating energy and mass
e=mc^2
qV
(3/2)nRdeltaT
(Wnet)/(Qin)

47. force of gravity between two objects of mass m
e=mc^2
GM*M/(r^2)
sqrt(3KT/m)
((Qin) -(Qout))/(Qin)

48. equation of continuity
no force (right hand rule)
.5CV^2 or .5 Q^2/C or .5QV
nSintheta=nsintheta
AV=(A2)(V2)

49. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
2nt=mwavelength
dSintheta=mwavelength
G M/((d/2)^2)
constant volume

50. energy of a photon if wavelength is known
hc/wavelength
BLv
AV=(A2)(V2)
G M/((d/2)^2)