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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. focal length of a mirror with radius d
hc/wavelength
sqrt(T/(m/))
d/2
sqrt(3KT/m)

2. work energy theorum
sqrt(3KT/m)
(EMF)Rt/10
F/A
net work = delta K

3. forgotten power equation
Ed=V
FV
(hc/wavelength)=h(Fo) +(Vs)
roeVg

4. force a charge in a Bfield
nSintheta=nsintheta
G M/((d/2)^2)
(Fn)(mu)
qVB

5. velocity of an electrion as it exitws from the hole
qrB/m
V^2=(Vo)^2 +2a*change in x
F/A
h(Fo)

6. radius of curvature of a charged particle as it enters a uniform magnetic field
Joules/Columb
sqrt(T/(m/))
m(v^2)/qvB
n(Cv)(deltaT)

7. natural frequency of an open tube of length L
net work = delta K
BA
GM*M/(r^2)
1/2wavelength

8. total capacitance of capacitors in series
k|Q|/r^2
deltaU = deltaQ + deltaW
1/((1/C)+(1/C)..........)
Ed=V

9. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
net work = delta K
MC(deltaT)
V^2=(Vo)^2 +2a*change in x

10. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
(V^2)/R
inelastic collision
Ed=V

11. adibatic
KI/r
0
no heat flow
frequency never changes for light problems

12. equation for the first law of thermodynamics
(1/Do) + (1/Di) = (1/f)
(V^2)/R
(EMF)Rt/10
deltaU = deltaQ + deltaW

13. resistance of a wire
pL/A
.5CV^2 or .5 Q^2/C or .5QV
1/4wavelength
sqrt(3KT/m)

14. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
sqrt(3KT/m)
sqrt(T/(m/))
n(Cv)(deltaT)

15. formula for finding the work function of a metal if the cutoff frequency is known
KQ/r
qrB/m
(N2)/(N1)
h(Fo)

16. the units of current other than amps
sqrt(3KT/m)
FV
2Pi * sqrt(l/g)
Columbs/second

17. new frequency of light as it enters a new substance
constant volume
-KA
frequency never changes for light problems
deltaU = deltaQ + deltaW

18. formula for critical angle
qVB
(hc/wavelength)=h(Fo) +(Vs)
.5KA^2
(N2)/(N1)

19. equation of continuity
AV=(A2)(V2)
roegh
M(Lf)
E/B

20. second kinematic
KI/r
opposite motion
delta x = (Vo)t + .5at^2
h/wavelength

21. first kinematic
V = (Vo) + at
(V^2)/R
-KA
m(v^2)/qvB

22. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qVB
.5mV^2 + .5KA^2
qV
KI/r

23. formula for buoyant force
roeVg
nSintheta=nsintheta
qV
(EMF)Rt/10

24. the force on a charge in an electric field
.5CV^2 or .5 Q^2/C or .5QV
BLv
deltaU -deltaW
qE

25. hooke's law force of a spring
1/4wavelength
opposite motion
-KA
sqrt(T/(m/))

26. 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+IR
V^2=(Vo)^2 +2a*change in x
(I^2)RT
net work = delta K

27. formula for impluse involving time
J= Ft
(EMF)Rt/10
frequency never changes for light problems
F/A

28. velocity of a molecule of gas
sqrt(3KT/m)
mV -m(Vo)
inelastic collision
(I^2)RT

29. velocity of waves on a string if tension is known
Ed=V
e=mc^2
sqrt(T/(m/))
BA

30. snells law
h/mv
E/B
1/2wavelength
nSintheta=nsintheta

31. formula for impulse involving momentum
L -LCostheta
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)
Q=CV

32. formula for charge stored in a capciator
Q=CV
MC(deltaT)
constant pressure
d/2

33. formula for finding the magnetic field a distance r from a current carrying wire
qE
((Th) -(Tl))/(Th)
(N2)/(N1)
KI/r

34. what direction is friction?
G M/((d/2)^2)
inelastic collision
opposite motion
e=mc^2

35. formula for period of a pendulum
Ed=V
2Pi * sqrt(l/g)
(Wnet)/(Qin)
sqrt(3KT/m)

36. formula for power with Voltage and resistance
(1/Do) + (1/Di) = (1/f)
(V^2)/R
joules/second
KQ/r

37. isometric
sqrt(3KT/m)
k|Q|/r^2
J= Ft
constant volume

38. formula for energy of a spring mass when spring is at maximum displacement
dSintheta=mwavelength
AV=(A2)(V2)
hc/wavelength
.5KA^2

39. isothermal
no temp change
-KA
1/4wavelength
(I^2)R

40. pressure
k|Q|/r^2
F/A
Columbs/second
no heat flow

41. the electric force between two objects of charge Q
K |q||Q|/r^2
KI/r
dSintheta=mwavelength
(EMF)Rt/10

42. heat during an isometric process
k|Q|/r^2
.5KA^2
n(Cv)(deltaT)
e=mc^2

43. third kinematic
(N2)/(N1)
FV
V^2=(Vo)^2 +2a*change in x
(Patm) + (Pgauge)

44. type of collision where K is not conserved
nSintheta=nsintheta
J= Ft
((Qin) -(Qout))/(Qin)
inelastic collision

45. type of collision where K is conserved
2nt=mwavelength
elastic collision
d/2
0

46. formula for torque
(I^2)RT
rF
h/mv
F/A

47. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
Joules/Columb
.5mV^2 + .5KA^2
inelastic collision
.5KA^2

48. heat required to melt a substance
M(Lf)
opposite motion
(N2)/(N1)
qE

49. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(N2)/(N1)
constant pressure
G M/((d/2)^2)
1/2wavelength

50. formula to find the gauge pressure at the bottom of a pool
qrB/m
no temp change
L -LCostheta
roegh