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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. isothermal
frequency never changes for light problems
pL/A
((Qin) -(Qout))/(Qin)
no temp change

2. formula relating voltage and electric field
(N2)/(N1)
inelastic collision
Ed=V
no force (right hand rule)

3. equation of continuity
deltaU = deltaQ + deltaW
(No)(wavelength)=(Nn)(new wavelength)
AV=(A2)(V2)
d/2

4. pressure
(1/Do) + (1/Di) = (1/f)
Q=CV
F/A
rF

5. equation for the first law of thermodynamics
h(Fo)
deltaU = deltaQ + deltaW
J= Ft
VI

6. formula for constructive interference in a diffraction grating
L -LCostheta
-KA
dSintheta=mwavelength
((Qin) -(Qout))/(Qin)

7. magnification equation
qV
pL/A
0
(Di)/(Do) or (Hi)/(Ho)

8. units for voltage other than volts
Joules/Columb
mV -m(Vo)
(Wnet)/(Qin)
k|Q|/r^2

9. formula for power with Voltage and resistance
(V^2)/R
frequency never changes for light problems
(N2)/(N1)
no force (right hand rule)

10. force a charge in a Bfield
qVB
Joules/Columb
(V^2)/r
frequency never changes for light problems

11. formula for torque
rF
roegh
M(Lf)
mV -m(Vo)

12. natural frequency of a closed tube of length L
d/2
rF
2nt=mwavelength
1/4wavelength

13. formula for buoyant force
hc/wavelength
roeVg
V^2=(Vo)^2 +2a*change in x
(N2)/(N1)

14. formula for change in internal energy in a cosnstat volume PV process
roegh
deltaU = deltaQ + deltaW
hc/wavelength
(3/2)nRdeltaT

15. formula for efficiency of a heat engine using work out
Columbs/second
(Wnet)/(Qin)
E/B
rF

16. radius of curvature of a charged particle as it enters a uniform magnetic field
K |q||Q|/r^2
BA
m(v^2)/qvB
KQ/r

17. heat during an isometric process
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
K |q||Q|/r^2
h(Fo)

18. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
2Pi * sqrt(l/g)
(I^2)RT
1/((1/C)+(1/C)..........)
joules/second

19. force of frction on an incline
joules/second
mgCostheta(mu)d
Columbs/second
V^2=(Vo)^2 +2a*change in x

20. formula for Carnot efficiency
((Th) -(Tl))/(Th)
2nt=mwavelength
rF
GM*M/(r^2)

21. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
n(Cv)(deltaT)
perfectly inelastic collision
(EMF)Rt/10
constant pressure

22. velocity of a molecule of gas
GM*M/(r^2)
sqrt(3KT/m)
(hc/wavelength)=h(Fo) +(Vs)
Columbs/second

23. heat required to change temperature of a substance
d/2
perfectly inelastic collision
MC(deltaT)
net work = delta K

24. type of collision where objects stick togerther
deltaU = deltaQ + deltaW
nSintheta=nsintheta
perfectly inelastic collision
M(Lf)

25. formula for power with current and voltage
nSintheta=nsintheta
VI
MC(deltaT)
k|Q|/r^2

26. work energy theorum
net work = delta K
qV
M(Lf)
deltaU = deltaQ + deltaW

27. the units of power other than watts
joules/second
1/4wavelength
G M/((d/2)^2)
pL/A

28. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
inelastic collision
pL/A
qE

29. formula for finding the magnetic field a distance r from a current carrying wire
deltaU -deltaW
(V^2)/R
(1/Do) + (1/Di) = (1/f)
KI/r

30. formula for energy of a spring mass when spring is at maximum displacement
(1/Do) + (1/Di) = (1/f)
GM*M/(r^2)
(hc/wavelength)=h(Fo) +(Vs)
.5KA^2

31. the electric force between two objects of charge Q
n(Cv)(deltaT)
delta x = (Vo)t + .5at^2
K |q||Q|/r^2
BLv

32. the units of current other than amps
Columbs/second
V+IR
Joules/Columb
1/((1/C)+(1/C)..........)

33. type of collision where K is conserved
elastic collision
2Pi * sqrt(l/g)
constant volume
(1/Do) + (1/Di) = (1/f)

34. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
-KA
pL/A
sqrt(3KT/m)

35. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
qVB
qrB/m
KQ/r
E/B

36. heat required to melt a substance
elastic collision
Columbs/second
qrB/m
M(Lf)

37. velocity of waves on a string if tension is known
Ed=V
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
(N2)/(N1)

38. what direction is friction?
constant volume
Joules/Columb
(hc/wavelength)=h(Fo) +(Vs)
opposite motion

39. formula for critical angle
roegh
(I^2)RT
h/mv
(N2)/(N1)

40. force of gravity between two objects of mass m
pL/A
0
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)

41. total capacitance of capacitors in series
elastic collision
2Pi * sqrt(l/g)
qE
1/((1/C)+(1/C)..........)

42. lens/mirror equation
d/2
J= Ft
FV
(1/Do) + (1/Di) = (1/f)

43. isobaric
constant pressure
(No)(wavelength)=(Nn)(new wavelength)
inelastic collision
(I^2)RT

44. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
0
frequency never changes for light problems
G M/((d/2)^2)
no force (right hand rule)

45. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
rF
1/((1/C)+(1/C)..........)
(V^2)/R

46. the force on a charge in an electric field
J= Ft
no heat flow
m(v^2)/qvB
qE

47. resistance of a wire
.5KA^2
V^2=(Vo)^2 +2a*change in x
(Fn)(mu)
pL/A

48. force of friction
M(Lf)
hc/wavelength
nSintheta=nsintheta
(Fn)(mu)

49. formula for period of a pendulum
2Pi * sqrt(l/g)
sqrt(T/(m/))
V = (Vo) + at
F/A

50. EMF of a battery having internal resistance R
.5CV^2 or .5 Q^2/C or .5QV
V+IR
(Wnet)/(Qin)
qE