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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 centripetal acceleration
constant pressure
(I^2)RT
deltaU = deltaQ + deltaW
(V^2)/r

2. third kinematic
delta x = (Vo)t + .5at^2
V = (Vo) + at
V^2=(Vo)^2 +2a*change in x
BA

3. formula for finding the momentum of a photon
roeVg
h/wavelength
Q=CV
(EMF)Rt/10

4. velocity of a molecule of gas
nSintheta=nsintheta
L -LCostheta
(V^2)/R
sqrt(3KT/m)

5. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
h/mv
(hc/wavelength)=h(Fo) +(Vs)
(I^2)RT
KI/r

6. formula relating voltage and electric field
roeVg
d/2
pL/A
Ed=V

7. work energy theorum
no force (right hand rule)
net work = delta K
AV=(A2)(V2)
h/wavelength

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

9. formula for buoyant force
roeVg
.5mV^2 + .5KA^2
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV

10. isobaric
constant pressure
1/2wavelength
h/wavelength
no temp change

11. voltage induced in a rod moving through a uniform magnetic field
E/B
pL/A
Columbs/second
BLv

12. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(Wnet)/(Qin)
L -LCostheta
2nt=mwavelength
sqrt(T/(m/))

13. type of collision where K is not conserved
.5CV^2 or .5 Q^2/C or .5QV
dSintheta=mwavelength
inelastic collision
(hc/wavelength)=h(Fo) +(Vs)

14. formula equating energy and mass
(hc/wavelength)=h(Fo) +(Vs)
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x
e=mc^2

15. formula for impluse involving time
sqrt(3KT/m)
d/2
L -LCostheta
J= Ft

16. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
.5CV^2 or .5 Q^2/C or .5QV
nSintheta=nsintheta
delta x = (Vo)t + .5at^2

17. total capacitance of capacitors in series
G M/((d/2)^2)
hc/wavelength
(Fn)(mu)
1/((1/C)+(1/C)..........)

18. resistance of a wire
qrB/m
pL/A
roegh
frequency never changes for light problems

19. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(Patm) + (Pgauge)
.5mV^2 + .5KA^2
J= Ft
no heat flow

20. formula for power with current and resistance
(I^2)R
rF
.5CV^2 or .5 Q^2/C or .5QV
no temp change

21. formula for the wavelength (debroglie wavelength) of a moving particle
Joules/Columb
(V^2)/R
h/mv
(1/Do) + (1/Di) = (1/f)

22. formula for finding the magnetic field a distance r from a current carrying wire
GM*M/(r^2)
elastic collision
KI/r
(I^2)RT

23. EMF of a battery having internal resistance R
V+IR
mgCostheta(mu)d
net work = delta K
perfectly inelastic collision

24. velocity of an electrion as it exitws from the hole
qrB/m
k|Q|/r^2
BA
hc/wavelength

25. the force on a charge moving parallel to a magnetic field
no temp change
no force (right hand rule)
(N2)/(N1)
joules/second

26. heat required to melt a substance
d/2
M(Lf)
GM*M/(r^2)
(Wnet)/(Qin)

27. formula for impulse involving momentum
(EMF)Rt/10
F/A
mV -m(Vo)
KQ/r

28. electric field in a distance r from a charge
k|Q|/r^2
KI/r
hc/wavelength
V+IR

29. the force on a charge in an electric field
dSintheta=mwavelength
constant pressure
qE
(I^2)RT

30. equation of continuity
J= Ft
AV=(A2)(V2)
frequency never changes for light problems
Q=CV

31. heat during a cyclic process (net heat)
deltaU -deltaW
no heat flow
deltaU = deltaQ + deltaW
qrB/m

32. electric potential a distance r from a charge
KQ/r
qE
e=mc^2
(hc/wavelength)=h(Fo) +(Vs)

33. 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
2Pi * sqrt(l/g)
qV
BA

34. type of collision where K is conserved
(N2)/(N1)
elastic collision
(EMF)Rt/10
pL/A

35. formula for torque
rF
2Pi * sqrt(l/g)
F/A
V+IR

36. natural frequency of a closed tube of length L
KQ/r
1/4wavelength
qVB
no force (right hand rule)

37. snells law
net work = delta K
1/((1/C)+(1/C)..........)
nSintheta=nsintheta
constant pressure

38. formula for power with Voltage and resistance
(V^2)/R
(1/Do) + (1/Di) = (1/f)
frequency never changes for light problems
opposite motion

39. force of friction
AV=(A2)(V2)
FV
(Fn)(mu)
net work = delta K

40. focal length of a mirror with radius d
d/2
qV
(V^2)/r
h(Fo)

41. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
.5KA^2
(I^2)R
BA

42. heat during an isometric process
(hc/wavelength)=h(Fo) +(Vs)
h(Fo)
n(Cv)(deltaT)
mV -m(Vo)

43. isometric
d/2
constant volume
dSintheta=mwavelength
GM*M/(r^2)

44. pressure
V = (Vo) + at
Joules/Columb
F/A
hc/wavelength

45. the units of power other than watts
joules/second
h(Fo)
(Wnet)/(Qin)
no force (right hand rule)

46. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
n(Cv)(deltaT)
roegh
e=mc^2

47. the electric force between two objects of charge Q
K |q||Q|/r^2
2Pi * sqrt(l/g)
.5mV^2 + .5KA^2
(EMF)Rt/10

48. formula to find the gauge pressure at the bottom of a pool
GM*M/(r^2)
VI
roegh
delta x = (Vo)t + .5at^2

49. isothermal
AV=(A2)(V2)
no force (right hand rule)
opposite motion
no temp change

50. formula for charge stored in a capciator
qE
Q=CV
h/mv
.5KA^2