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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.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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 power with Voltage and resistance
(V^2)/R
e=mc^2
Q=CV
(1/Do) + (1/Di) = (1/f)

2. force of gravity between two objects of mass m
((Qin) -(Qout))/(Qin)
GM*M/(r^2)
constant pressure
frequency never changes for light problems

3. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
frequency never changes for light problems
qV
no temp change
net work = delta K

4. heat during an isometric process
qV
(Patm) + (Pgauge)
n(Cv)(deltaT)
V^2=(Vo)^2 +2a*change in x

5. natural frequency of an open tube of length L
1/2wavelength
(Wnet)/(Qin)
dSintheta=mwavelength
elastic collision

6. formula equating energy and mass
no force (right hand rule)
e=mc^2
(Fn)(mu)
(3/2)nRdeltaT

7. formula for torque
1/4wavelength
rF
roegh
G M/((d/2)^2)

8. equation of continuity
AV=(A2)(V2)
n(Cv)(deltaT)
k|Q|/r^2
qV

9. force of frction on an incline
inelastic collision
mgCostheta(mu)d
(V^2)/r
FV

10. electric potential a distance r from a charge
frequency never changes for light problems
Ed=V
K |q||Q|/r^2
KQ/r

11. formula for finding the work function of a metal if the cutoff frequency is known
frequency never changes for light problems
(3/2)nRdeltaT
sqrt(T/(m/))
h(Fo)

12. formula for Carnot efficiency
.5KA^2
(hc/wavelength)=h(Fo) +(Vs)
((Th) -(Tl))/(Th)
inelastic collision

13. first kinematic
1/2wavelength
(I^2)RT
V = (Vo) + at
delta x = (Vo)t + .5at^2

14. heat during a cyclic process (net heat)
KQ/r
(Fn)(mu)
deltaU -deltaW
1/4wavelength

15. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
AV=(A2)(V2)
(No)(wavelength)=(Nn)(new wavelength)
(1/Do) + (1/Di) = (1/f)

16. units for voltage other than volts
V^2=(Vo)^2 +2a*change in x
G M/((d/2)^2)
Joules/Columb
opposite motion

17. what direction is friction?
KQ/r
opposite motion
K |q||Q|/r^2
2Pi * sqrt(l/g)

18. formula for constructive interference in a diffraction grating
(No)(wavelength)=(Nn)(new wavelength)
dSintheta=mwavelength
deltaU = deltaQ + deltaW
sqrt(3KT/m)

19. change in internal energy during a cyclic process
(Wnet)/(Qin)
no force (right hand rule)
0
(Patm) + (Pgauge)

20. voltage induced in a rod moving through a uniform magnetic field
J= Ft
L -LCostheta
BLv
K |q||Q|/r^2

21. formula for power with current and voltage
BA
deltaU = deltaQ + deltaW
VI
qVB

22. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
.5CV^2 or .5 Q^2/C or .5QV
BLv
(3/2)nRdeltaT

23. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
FV
qrB/m
mV -m(Vo)

24. resistance of a wire
pL/A
elastic collision
deltaU = deltaQ + deltaW
h/mv

25. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
((Th) -(Tl))/(Th)
(Patm) + (Pgauge)
qE
.5mV^2 + .5KA^2

26. the force on a charge in an electric field
qE
no heat flow
(Wnet)/(Qin)
opposite motion

27. formula for finding the momentum of a photon
qV
h/wavelength
KI/r
GM*M/(r^2)

28. force a charge in a Bfield
qVB
G M/((d/2)^2)
(Di)/(Do) or (Hi)/(Ho)
V+IR

29. formula for the wavelength (debroglie wavelength) of a moving particle
(V^2)/r
GM*M/(r^2)
deltaU -deltaW
h/mv

30. forgotten power equation
no temp change
FV
(No)(wavelength)=(Nn)(new wavelength)
qE

31. formula for finding the magnetic field a distance r from a current carrying wire
joules/second
KI/r
J= Ft
qrB/m

32. heat required to melt a substance
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)
M(Lf)
qE

33. formula to find the gauge pressure at the bottom of a pool
(Wnet)/(Qin)
J= Ft
1/((1/C)+(1/C)..........)
roegh

34. radius of curvature of a charged particle as it enters a uniform magnetic field
nSintheta=nsintheta
m(v^2)/qvB
(Patm) + (Pgauge)
V^2=(Vo)^2 +2a*change in x

35. formula for power with current and resistance
net work = delta K
(I^2)R
2Pi * sqrt(l/g)
BA

36. energy of a photon if wavelength is known
hc/wavelength
(hc/wavelength)=h(Fo) +(Vs)
2nt=mwavelength
-KA

37. the electric force between two objects of charge Q
delta x = (Vo)t + .5at^2
(Wnet)/(Qin)
(EMF)Rt/10
K |q||Q|/r^2

38. type of collision where K is not conserved
inelastic collision
Joules/Columb
M(Lf)
(EMF)Rt/10

39. formula for buoyant force
(hc/wavelength)=h(Fo) +(Vs)
m(v^2)/qvB
roeVg
(Di)/(Do) or (Hi)/(Ho)

40. formula relating voltage and electric field
L -LCostheta
Ed=V
n(Cv)(deltaT)
deltaU -deltaW

41. formula for change in internal energy in a cosnstat volume PV process
Columbs/second
perfectly inelastic collision
(3/2)nRdeltaT
KI/r

42. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
J= Ft
n(Cv)(deltaT)
hc/wavelength

43. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
rF
(Di)/(Do) or (Hi)/(Ho)
e=mc^2

44. force of friction
AV=(A2)(V2)
(Fn)(mu)
opposite motion
F/A

45. new wavelength of light as it enters a new substance
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)
(V^2)/r
k|Q|/r^2

46. new frequency of light as it enters a new substance
(EMF)Rt/10
VI
((Qin) -(Qout))/(Qin)
frequency never changes for light problems

47. formula for period of a pendulum
2Pi * sqrt(l/g)
frequency never changes for light problems
opposite motion
MC(deltaT)

48. third kinematic
Ed=V
V^2=(Vo)^2 +2a*change in x
FV
constant pressure

49. heat required to change temperature of a substance
2nt=mwavelength
(Wnet)/(Qin)
KI/r
MC(deltaT)

50. second kinematic
deltaU = deltaQ + deltaW
constant volume
delta x = (Vo)t + .5at^2
sqrt(3KT/m)