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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. heat during an isometric process
n(Cv)(deltaT)
F/A
elastic collision
deltaU -deltaW

2. adibatic
(Di)/(Do) or (Hi)/(Ho)
no heat flow
J= Ft
(Patm) + (Pgauge)

3. formula for centripetal acceleration
joules/second
hc/wavelength
qVB
(V^2)/r

4. natural frequency of a closed tube of length L
deltaU -deltaW
Ed=V
(V^2)/r
1/4wavelength

5. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
mgCostheta(mu)d
FV
(I^2)RT

6. formula for constructive interference in a thin membrane with two phase changes
K |q||Q|/r^2
2nt=mwavelength
(V^2)/R
nSintheta=nsintheta

7. the force on a charge moving parallel to a magnetic field
V+IR
1/((1/C)+(1/C)..........)
L -LCostheta
no force (right hand rule)

8. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
1/4wavelength
VI
2nt=mwavelength

9. snells law
nSintheta=nsintheta
VI
qE
Q=CV

10. units for voltage other than volts
d/2
Joules/Columb
BLv
pL/A

11. isobaric
hc/wavelength
2nt=mwavelength
constant pressure
M(Lf)

12. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
hc/wavelength
.5mV^2 + .5KA^2
(hc/wavelength)=h(Fo) +(Vs)
(3/2)nRdeltaT

13. formula for buoyant force
roeVg
qV
elastic collision
BLv

14. formula for power with Voltage and resistance
(V^2)/R
Q=CV
V = (Vo) + at
qE

15. formula for power with current and resistance
(Di)/(Do) or (Hi)/(Ho)
K |q||Q|/r^2
MC(deltaT)
(I^2)R

16. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
joules/second
sqrt(3KT/m)
BLv

17. force a charge in a Bfield
qVB
joules/second
-KA
opposite motion

18. radius of curvature of a charged particle as it enters a uniform magnetic field
2Pi * sqrt(l/g)
-KA
BA
m(v^2)/qvB

19. natural frequency of an open tube of length L
elastic collision
1/2wavelength
nSintheta=nsintheta
Q=CV

20. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
E/B
dSintheta=mwavelength
n(Cv)(deltaT)

21. the force on a charge in an electric field
qV
qE
inelastic collision
k|Q|/r^2

22. energy of a photon if wavelength is known
hc/wavelength
elastic collision
roeVg
Q=CV

23. third kinematic
hc/wavelength
V^2=(Vo)^2 +2a*change in x
qE
BLv

24. second kinematic
delta x = (Vo)t + .5at^2
constant pressure
BLv
(Fn)(mu)

25. type of collision where objects stick togerther
k|Q|/r^2
perfectly inelastic collision
opposite motion
hc/wavelength

26. heat required to melt a substance
1/2wavelength
M(Lf)
qVB
((Qin) -(Qout))/(Qin)

27. velocity of a molecule of gas
(Wnet)/(Qin)
K |q||Q|/r^2
opposite motion
sqrt(3KT/m)

28. electric potential a distance r from a charge
joules/second
opposite motion
KQ/r
((Qin) -(Qout))/(Qin)

29. heat during a cyclic process (net heat)
sqrt(T/(m/))
no heat flow
((Th) -(Tl))/(Th)
deltaU -deltaW

30. formula for power with current and voltage
h/wavelength
VI
BA
roegh

31. change in internal energy during a cyclic process
roegh
0
no temp change
V^2=(Vo)^2 +2a*change in x

32. formula for the wavelength (debroglie wavelength) of a moving particle
1/2wavelength
sqrt(3KT/m)
h/mv
2Pi * sqrt(l/g)

33. formula for Carnot efficiency
pL/A
no heat flow
roeVg
((Th) -(Tl))/(Th)

34. the electric force between two objects of charge Q
BA
constant volume
.5mV^2 + .5KA^2
K |q||Q|/r^2

35. formula relating voltage and electric field
Ed=V
(3/2)nRdeltaT
L -LCostheta
delta x = (Vo)t + .5at^2

36. formula for height of the block (at the start of a pendulum string) in terms of theta and L
2nt=mwavelength
Columbs/second
deltaU -deltaW
L -LCostheta

37. formula for finding the momentum of a photon
Ed=V
h/wavelength
V = (Vo) + at
sqrt(3KT/m)

38. force of gravity between two objects of mass m
nSintheta=nsintheta
GM*M/(r^2)
Joules/Columb
net work = delta K

39. isothermal
no temp change
constant pressure
GM*M/(r^2)
mV -m(Vo)

40. formula for finding magnetic flux
(Di)/(Do) or (Hi)/(Ho)
0
BA
qrB/m

41. hooke's law force of a spring
mgCostheta(mu)d
K |q||Q|/r^2
VI
-KA

42. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
VI
MC(deltaT)
1/((1/C)+(1/C)..........)

43. voltage induced in a rod moving through a uniform magnetic field
1/2wavelength
BLv
KI/r
(I^2)RT

44. formula for impluse involving time
J= Ft
Ed=V
(Patm) + (Pgauge)
hc/wavelength

45. formula for efficiency of a heat engine using work out
2Pi * sqrt(l/g)
Columbs/second
G M/((d/2)^2)
(Wnet)/(Qin)

46. pressure
2Pi * sqrt(l/g)
(N2)/(N1)
F/A
Q=CV

47. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(N2)/(N1)
BLv
G M/((d/2)^2)
rF

48. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
VI
AV=(A2)(V2)
qV
d/2

49. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
FV
rF
no force (right hand rule)

50. type of collision where K is conserved
perfectly inelastic collision
no heat flow
V+IR
elastic collision

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AP Physics Formulas

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