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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 buoyant force
roeVg
qE
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)

2. type of collision where K is not conserved
G M/((d/2)^2)
inelastic collision
M(Lf)
(No)(wavelength)=(Nn)(new wavelength)

3. electric field in a distance r from a charge
L -LCostheta
k|Q|/r^2
KQ/r
mV -m(Vo)

4. snells law
-KA
nSintheta=nsintheta
h/mv
d/2

5. work energy theorum
qV
no heat flow
1/((1/C)+(1/C)..........)
net work = delta K

6. formula for impulse involving momentum
mV -m(Vo)
((Qin) -(Qout))/(Qin)
(I^2)RT
hc/wavelength

7. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
h/wavelength
n(Cv)(deltaT)
(EMF)Rt/10
KQ/r

8. equation for the first law of thermodynamics
sqrt(T/(m/))
qV
FV
deltaU = deltaQ + deltaW

9. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
deltaU = deltaQ + deltaW
roegh
qV
d/2

10. heat required to melt a substance
mgCostheta(mu)d
M(Lf)
k|Q|/r^2
deltaU -deltaW

11. natural frequency of a closed tube of length L
rF
h(Fo)
K |q||Q|/r^2
1/4wavelength

12. formula for finding the magnetic field a distance r from a current carrying wire
Joules/Columb
2nt=mwavelength
KI/r
d/2

13. formula for impluse involving time
n(Cv)(deltaT)
GM*M/(r^2)
J= Ft
(Wnet)/(Qin)

14. forgotten power equation
qrB/m
FV
KI/r
sqrt(T/(m/))

15. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(Fn)(mu)
BLv
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV

16. formula to find the absoluate pressure at the bottom of a pool
k|Q|/r^2
deltaU -deltaW
Ed=V
(Patm) + (Pgauge)

17. EMF of a battery having internal resistance R
(1/Do) + (1/Di) = (1/f)
V+IR
(3/2)nRdeltaT
.5mV^2 + .5KA^2

18. formula for centripetal acceleration
mgCostheta(mu)d
(V^2)/r
nSintheta=nsintheta
.5mV^2 + .5KA^2

19. formula for finding the momentum of a photon
h/wavelength
.5KA^2
(3/2)nRdeltaT
(Wnet)/(Qin)

20. formula for finding magnetic flux
elastic collision
L -LCostheta
BA
(hc/wavelength)=h(Fo) +(Vs)

21. units for voltage other than volts
V = (Vo) + at
Columbs/second
Joules/Columb
(hc/wavelength)=h(Fo) +(Vs)

22. change in internal energy during a cyclic process
1/2wavelength
dSintheta=mwavelength
roegh
0

23. focal length of a mirror with radius d
deltaU -deltaW
d/2
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)

24. new frequency of light as it enters a new substance
((Th) -(Tl))/(Th)
qrB/m
BA
frequency never changes for light problems

25. magnification equation
joules/second
no heat flow
.5KA^2
(Di)/(Do) or (Hi)/(Ho)

26. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
qrB/m
sqrt(T/(m/))
E/B
Columbs/second

27. formula for energy of a spring mass when spring is at maximum displacement
h/mv
.5KA^2
(No)(wavelength)=(Nn)(new wavelength)
(Fn)(mu)

28. first kinematic
V+IR
qrB/m
V = (Vo) + at
qV

29. formula to find the gauge pressure at the bottom of a pool
roegh
0
e=mc^2
net work = delta K

30. lens/mirror equation
1/4wavelength
(1/Do) + (1/Di) = (1/f)
no heat flow
h/wavelength

31. energy of a photon if wavelength is known
hc/wavelength
h/mv
(N2)/(N1)
(EMF)Rt/10

32. velocity of an electrion as it exitws from the hole
J= Ft
roeVg
qrB/m
E/B

33. what direction is friction?
G M/((d/2)^2)
roegh
opposite motion
F/A

34. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
(I^2)R
pL/A
n(Cv)(deltaT)

35. formula for constructive interference in a thin membrane with two phase changes
Joules/Columb
2nt=mwavelength
(No)(wavelength)=(Nn)(new wavelength)
((Qin) -(Qout))/(Qin)

36. the units of current other than amps
Columbs/second
M(Lf)
nSintheta=nsintheta
qV

37. type of collision where K is conserved
elastic collision
Q=CV
V^2=(Vo)^2 +2a*change in x
net work = delta K

38. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
k|Q|/r^2
hc/wavelength
Q=CV

39. heat during an isometric process
KI/r
n(Cv)(deltaT)
(V^2)/R
KQ/r

40. third kinematic
(I^2)R
V^2=(Vo)^2 +2a*change in x
net work = delta K
2nt=mwavelength

41. formula equating energy and mass
m(v^2)/qvB
e=mc^2
d/2
qV

42. the electric force between two objects of charge Q
.5KA^2
K |q||Q|/r^2
inelastic collision
1/((1/C)+(1/C)..........)

43. isometric
d/2
constant volume
V^2=(Vo)^2 +2a*change in x
no force (right hand rule)

44. formula relating voltage and electric field
Ed=V
.5mV^2 + .5KA^2
F/A
(1/Do) + (1/Di) = (1/f)

45. formula for power with Voltage and resistance
(V^2)/R
elastic collision
.5mV^2 + .5KA^2
FV

46. radius of curvature of a charged particle as it enters a uniform magnetic field
h(Fo)
-KA
m(v^2)/qvB
KQ/r

47. force a charge in a Bfield
2nt=mwavelength
Ed=V
qVB
(EMF)Rt/10

48. adibatic
Joules/Columb
no heat flow
qrB/m
(I^2)RT

49. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
sqrt(T/(m/))
constant volume
(Di)/(Do) or (Hi)/(Ho)

50. formula for period of a pendulum
(Patm) + (Pgauge)
inelastic collision
hc/wavelength
2Pi * sqrt(l/g)