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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 buoyant force
(Wnet)/(Qin)
roeVg
constant pressure
V^2=(Vo)^2 +2a*change in x

2. snells law
(EMF)Rt/10
nSintheta=nsintheta
constant volume
BA

3. heat during a cyclic process (net heat)
deltaU -deltaW
e=mc^2
.5mV^2 + .5KA^2
constant volume

4. 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)
0
(1/Do) + (1/Di) = (1/f)
-KA

5. third kinematic
G M/((d/2)^2)
KI/r
V^2=(Vo)^2 +2a*change in x
(EMF)Rt/10

6. formula for impulse involving momentum
deltaU -deltaW
inelastic collision
mV -m(Vo)
sqrt(3KT/m)

7. formula for power with Voltage and resistance
constant pressure
((Qin) -(Qout))/(Qin)
(N2)/(N1)
(V^2)/R

8. isobaric
BLv
k|Q|/r^2
n(Cv)(deltaT)
constant pressure

9. formula for period of a pendulum
G M/((d/2)^2)
1/4wavelength
2Pi * sqrt(l/g)
qE

10. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
E/B
1/2wavelength
qV
elastic collision

11. the units of current other than amps
net work = delta K
Columbs/second
BA
(EMF)Rt/10

12. isometric
(I^2)R
sqrt(T/(m/))
constant volume
perfectly inelastic collision

13. second kinematic
Ed=V
Q=CV
delta x = (Vo)t + .5at^2
KI/r

14. force of frction on an incline
opposite motion
mgCostheta(mu)d
h/wavelength
joules/second

15. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
KI/r
e=mc^2
V = (Vo) + at

16. heat during an isometric process
L -LCostheta
1/2wavelength
n(Cv)(deltaT)
Joules/Columb

17. energy of a photon if wavelength is known
qV
hc/wavelength
(Wnet)/(Qin)
-KA

18. formula for torque
Ed=V
-KA
rF
qVB

19. first kinematic
V = (Vo) + at
hc/wavelength
(I^2)R
0

20. electric field in a distance r from a charge
.5CV^2 or .5 Q^2/C or .5QV
k|Q|/r^2
perfectly inelastic collision
V+IR

21. type of collision where K is conserved
elastic collision
(I^2)RT
(Fn)(mu)
2nt=mwavelength

22. equation of continuity
MC(deltaT)
V+IR
AV=(A2)(V2)
V^2=(Vo)^2 +2a*change in x

23. formula relating voltage and electric field
sqrt(T/(m/))
h(Fo)
(hc/wavelength)=h(Fo) +(Vs)
Ed=V

24. isothermal
no force (right hand rule)
no temp change
Q=CV
n(Cv)(deltaT)

25. formula for finding the momentum of a photon
delta x = (Vo)t + .5at^2
F/A
(Di)/(Do) or (Hi)/(Ho)
h/wavelength

26. change in internal energy during a cyclic process
V^2=(Vo)^2 +2a*change in x
sqrt(T/(m/))
KI/r
0

27. new wavelength of light as it enters a new substance
(3/2)nRdeltaT
nSintheta=nsintheta
(No)(wavelength)=(Nn)(new wavelength)
e=mc^2

28. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
VI
V+IR
KI/r
.5mV^2 + .5KA^2

29. adibatic
no heat flow
frequency never changes for light problems
no force (right hand rule)
1/2wavelength

30. formula for the wavelength (debroglie wavelength) of a moving particle
mV -m(Vo)
(Wnet)/(Qin)
h/mv
mgCostheta(mu)d

31. formula for constructive interference in a diffraction grating
sqrt(T/(m/))
elastic collision
dSintheta=mwavelength
2nt=mwavelength

32. formula to find the gauge pressure at the bottom of a pool
V^2=(Vo)^2 +2a*change in x
roegh
Columbs/second
MC(deltaT)

33. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
elastic collision
(I^2)RT
rF
(V^2)/R

34. formula for constructive interference in a thin membrane with two phase changes
E/B
.5CV^2 or .5 Q^2/C or .5QV
2nt=mwavelength
AV=(A2)(V2)

35. formula equating energy and mass
e=mc^2
Columbs/second
(3/2)nRdeltaT
(V^2)/r

36. formula for impluse involving time
dSintheta=mwavelength
J= Ft
net work = delta K
n(Cv)(deltaT)

37. hooke's law force of a spring
constant pressure
h(Fo)
M(Lf)
-KA

38. formula for charge stored in a capciator
Q=CV
J= Ft
1/((1/C)+(1/C)..........)
sqrt(T/(m/))

39. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
rF
G M/((d/2)^2)
opposite motion

40. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
sqrt(3KT/m)
1/2wavelength
nSintheta=nsintheta

41. formula for Carnot efficiency
no temp change
((Th) -(Tl))/(Th)
BA
GM*M/(r^2)

42. formula for finding the work function of a metal if the cutoff frequency is known
delta x = (Vo)t + .5at^2
no force (right hand rule)
h(Fo)
(Di)/(Do) or (Hi)/(Ho)

43. formula for power with current and resistance
(I^2)R
joules/second
(3/2)nRdeltaT
V+IR

44. formula to find the absoluate pressure at the bottom of a pool
GM*M/(r^2)
Ed=V
(Patm) + (Pgauge)
(I^2)RT

45. formula for centripetal acceleration
(V^2)/r
sqrt(3KT/m)
no heat flow
mV -m(Vo)

46. energy stored in a capacitor
no force (right hand rule)
.5CV^2 or .5 Q^2/C or .5QV
e=mc^2
F/A

47. natural frequency of an open tube of length L
(Patm) + (Pgauge)
no temp change
(V^2)/r
1/2wavelength

48. forgotten power equation
J= Ft
net work = delta K
h/wavelength
FV

49. electric potential a distance r from a charge
0
e=mc^2
h/mv
KQ/r

50. velocity of an electrion as it exitws from the hole
(I^2)RT
qrB/m
dSintheta=mwavelength
KQ/r