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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. radius of curvature of a charged particle as it enters a uniform magnetic field
deltaU = deltaQ + deltaW
0
KI/r
m(v^2)/qvB

2. resistance of a wire
nSintheta=nsintheta
Q=CV
sqrt(T/(m/))
pL/A

3. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
hc/wavelength
(EMF)Rt/10
no temp change
h/wavelength

4. the force on a charge moving parallel to a magnetic field
joules/second
no temp change
G M/((d/2)^2)
no force (right hand rule)

5. total capacitance of capacitors in series
qVB
h/mv
1/((1/C)+(1/C)..........)
V+IR

6. formula for finding the momentum of a photon
.5mV^2 + .5KA^2
(No)(wavelength)=(Nn)(new wavelength)
roegh
h/wavelength

7. natural frequency of an open tube of length L
(I^2)RT
1/2wavelength
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)

8. formula for change in internal energy in a cosnstat volume PV process
net work = delta K
constant pressure
inelastic collision
(3/2)nRdeltaT

9. electric field in a distance r from a charge
E/B
k|Q|/r^2
BA
mV -m(Vo)

10. isobaric
constant pressure
Columbs/second
mgCostheta(mu)d
((Qin) -(Qout))/(Qin)

11. what direction is friction?
opposite motion
1/2wavelength
(Wnet)/(Qin)
Q=CV

12. type of collision where K is conserved
elastic collision
qE
net work = delta K
qrB/m

13. formula for centripetal acceleration
sqrt(T/(m/))
(Wnet)/(Qin)
KI/r
(V^2)/r

14. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
BA
1/4wavelength
E/B
2nt=mwavelength

15. focal length of a mirror with radius d
((Th) -(Tl))/(Th)
perfectly inelastic collision
d/2
VI

16. first kinematic
GM*M/(r^2)
V = (Vo) + at
mV -m(Vo)
1/4wavelength

17. force of gravity between two objects of mass m
BA
((Th) -(Tl))/(Th)
mgCostheta(mu)d
GM*M/(r^2)

18. formula for charge stored in a capciator
((Th) -(Tl))/(Th)
Q=CV
k|Q|/r^2
M(Lf)

19. electric potential a distance r from a charge
KQ/r
((Th) -(Tl))/(Th)
V = (Vo) + at
1/2wavelength

20. formula for height of the block (at the start of a pendulum string) in terms of theta and L
Joules/Columb
L -LCostheta
roegh
(1/Do) + (1/Di) = (1/f)

21. natural frequency of a closed tube of length L
1/((1/C)+(1/C)..........)
rF
roeVg
1/4wavelength

22. second kinematic
BLv
constant pressure
no heat flow
delta x = (Vo)t + .5at^2

23. formula for impulse involving momentum
constant volume
mV -m(Vo)
deltaU -deltaW
(V^2)/R

24. force of frction on an incline
(I^2)RT
((Th) -(Tl))/(Th)
0
mgCostheta(mu)d

25. velocity of a molecule of gas
sqrt(3KT/m)
h(Fo)
0
no temp change

26. work energy theorum
net work = delta K
1/4wavelength
VI
deltaU = deltaQ + deltaW

27. formula for constructive interference in a thin membrane with two phase changes
pL/A
Columbs/second
2nt=mwavelength
L -LCostheta

28. snells law
E/B
Q=CV
nSintheta=nsintheta
opposite motion

29. formula for constructive interference in a diffraction grating
constant pressure
dSintheta=mwavelength
joules/second
V+IR

30. formula for power with current and voltage
Columbs/second
VI
1/2wavelength
AV=(A2)(V2)

31. force a charge in a Bfield
constant pressure
qVB
((Qin) -(Qout))/(Qin)
constant volume

32. adibatic
E/B
no heat flow
(Fn)(mu)
roeVg

33. formula for energy of a spring mass when spring is at maximum displacement
nSintheta=nsintheta
.5KA^2
Ed=V
h/mv

34. formula for critical angle
(N2)/(N1)
qE
.5CV^2 or .5 Q^2/C or .5QV
VI

35. equation for the first law of thermodynamics
(1/Do) + (1/Di) = (1/f)
(Wnet)/(Qin)
pL/A
deltaU = deltaQ + deltaW

36. isothermal
1/((1/C)+(1/C)..........)
qE
no temp change
V = (Vo) + at

37. equation of continuity
qVB
net work = delta K
AV=(A2)(V2)
Columbs/second

38. 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
sqrt(T/(m/))
(hc/wavelength)=h(Fo) +(Vs)
BLv

39. formula for the wavelength (debroglie wavelength) of a moving particle
(I^2)RT
elastic collision
G M/((d/2)^2)
h/mv

40. formula for finding the work function of a metal if the cutoff frequency is known
h/wavelength
h(Fo)
delta x = (Vo)t + .5at^2
qV

41. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
V = (Vo) + at
BLv
(I^2)RT
BA

42. the electric force between two objects of charge Q
K |q||Q|/r^2
inelastic collision
k|Q|/r^2
2nt=mwavelength

43. force of friction
qE
(I^2)RT
(Fn)(mu)
(V^2)/R

44. heat during a cyclic process (net heat)
Joules/Columb
deltaU -deltaW
e=mc^2
.5mV^2 + .5KA^2

45. change in internal energy during a cyclic process
delta x = (Vo)t + .5at^2
h/wavelength
M(Lf)
0

46. formula for finding magnetic flux
deltaU = deltaQ + deltaW
BA
opposite motion
perfectly inelastic collision

47. formula to find the gauge pressure at the bottom of a pool
(I^2)R
roeVg
roegh
no heat flow

48. type of collision where K is not conserved
.5CV^2 or .5 Q^2/C or .5QV
rF
inelastic collision
opposite motion

49. new frequency of light as it enters a new substance
frequency never changes for light problems
Columbs/second
M(Lf)
G M/((d/2)^2)

50. formula for power with current and resistance
(I^2)R
AV=(A2)(V2)
Joules/Columb
h/mv