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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. type of collision where objects stick togerther
mgCostheta(mu)d
perfectly inelastic collision
.5mV^2 + .5KA^2
1/((1/C)+(1/C)..........)

2. formula for Carnot efficiency
((Th) -(Tl))/(Th)
h(Fo)
V = (Vo) + at
delta x = (Vo)t + .5at^2

3. adibatic
n(Cv)(deltaT)
roeVg
G M/((d/2)^2)
no heat flow

4. isothermal
deltaU -deltaW
nSintheta=nsintheta
Columbs/second
no temp change

5. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
m(v^2)/qvB
no temp change
no heat flow

6. formula for buoyant force
roeVg
e=mc^2
M(Lf)
d/2

7. formula for finding magnetic flux
perfectly inelastic collision
BA
KQ/r
FV

8. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
0
KI/r
(Patm) + (Pgauge)
E/B

9. magnification equation
1/2wavelength
VI
(Di)/(Do) or (Hi)/(Ho)
joules/second

10. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
net work = delta K
BA
1/((1/C)+(1/C)..........)

11. forgotten power equation
delta x = (Vo)t + .5at^2
h/wavelength
FV
V+IR

12. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
sqrt(3KT/m)
constant pressure
L -LCostheta

13. formula to find the absoluate pressure at the bottom of a pool
Columbs/second
(Patm) + (Pgauge)
rF
roeVg

14. force of frction on an incline
delta x = (Vo)t + .5at^2
mgCostheta(mu)d
K |q||Q|/r^2
sqrt(T/(m/))

15. formula for critical angle
e=mc^2
K |q||Q|/r^2
deltaU = deltaQ + deltaW
(N2)/(N1)

16. equation for the first law of thermodynamics
roegh
deltaU = deltaQ + deltaW
constant pressure
mgCostheta(mu)d

17. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
roegh
Ed=V
G M/((d/2)^2)
0

18. formula relating voltage and electric field
Ed=V
no force (right hand rule)
((Qin) -(Qout))/(Qin)
(1/Do) + (1/Di) = (1/f)

19. formula for energy of a spring mass when spring is at maximum displacement
(Di)/(Do) or (Hi)/(Ho)
no temp change
qVB
.5KA^2

20. radius of curvature of a charged particle as it enters a uniform magnetic field
V+IR
.5mV^2 + .5KA^2
m(v^2)/qvB
d/2

21. velocity of an electrion as it exitws from the hole
G M/((d/2)^2)
qrB/m
delta x = (Vo)t + .5at^2
.5CV^2 or .5 Q^2/C or .5QV

22. second kinematic
(V^2)/r
delta x = (Vo)t + .5at^2
(Wnet)/(Qin)
qV

23. formula for finding the momentum of a photon
h/wavelength
G M/((d/2)^2)
dSintheta=mwavelength
qVB

24. new frequency of light as it enters a new substance
MC(deltaT)
K |q||Q|/r^2
roeVg
frequency never changes for light problems

25. formula to find the gauge pressure at the bottom of a pool
inelastic collision
frequency never changes for light problems
roegh
K |q||Q|/r^2

26. heat during a cyclic process (net heat)
no temp change
Joules/Columb
L -LCostheta
deltaU -deltaW

27. electric potential a distance r from a charge
(Patm) + (Pgauge)
m(v^2)/qvB
KQ/r
net work = delta K

28. velocity of a molecule of gas
rF
qE
sqrt(3KT/m)
(Fn)(mu)

29. total capacitance of capacitors in series
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
(Patm) + (Pgauge)
1/((1/C)+(1/C)..........)

30. electric field in a distance r from a charge
k|Q|/r^2
e=mc^2
.5KA^2
(Di)/(Do) or (Hi)/(Ho)

31. EMF of a battery having internal resistance R
n(Cv)(deltaT)
V+IR
F/A
deltaU = deltaQ + deltaW

32. formula for finding the magnetic field a distance r from a current carrying wire
opposite motion
Ed=V
KI/r
nSintheta=nsintheta

33. formula for torque
rF
Q=CV
roeVg
BLv

34. type of collision where K is conserved
dSintheta=mwavelength
((Th) -(Tl))/(Th)
elastic collision
n(Cv)(deltaT)

35. the units of power other than watts
elastic collision
AV=(A2)(V2)
(I^2)R
joules/second

36. the units of current other than amps
Columbs/second
(I^2)RT
Q=CV
V^2=(Vo)^2 +2a*change in x

37. natural frequency of a closed tube of length L
FV
qVB
1/4wavelength
.5KA^2

38. isobaric
roeVg
GM*M/(r^2)
constant pressure
delta x = (Vo)t + .5at^2

39. formula for power with current and resistance
(I^2)R
pL/A
((Qin) -(Qout))/(Qin)
(N2)/(N1)

40. formula for constructive interference in a thin membrane with two phase changes
AV=(A2)(V2)
2nt=mwavelength
(I^2)R
V = (Vo) + at

41. formula for centripetal acceleration
((Qin) -(Qout))/(Qin)
K |q||Q|/r^2
(V^2)/r
deltaU -deltaW

42. energy of a photon if wavelength is known
hc/wavelength
G M/((d/2)^2)
E/B
F/A

43. force of friction
GM*M/(r^2)
(No)(wavelength)=(Nn)(new wavelength)
(Fn)(mu)
m(v^2)/qvB

44. formula for charge stored in a capciator
BA
Q=CV
KQ/r
(N2)/(N1)

45. formula for efficiency of a heat engine using work out
inelastic collision
delta x = (Vo)t + .5at^2
(Wnet)/(Qin)
(Di)/(Do) or (Hi)/(Ho)

46. force a charge in a Bfield
e=mc^2
2Pi * sqrt(l/g)
qVB
KI/r

47. voltage induced in a rod moving through a uniform magnetic field
2Pi * sqrt(l/g)
(I^2)R
BLv
(V^2)/r

48. formula for power with Voltage and resistance
rF
constant pressure
K |q||Q|/r^2
(V^2)/R

49. formula for efficiency not using work out
.5mV^2 + .5KA^2
inelastic collision
((Qin) -(Qout))/(Qin)
FV

50. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
Joules/Columb
opposite motion
BA
.5mV^2 + .5KA^2