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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 finding magnetic flux
BA
perfectly inelastic collision
sqrt(T/(m/))
dSintheta=mwavelength

2. formula for constructive interference in a diffraction grating
(N2)/(N1)
no force (right hand rule)
dSintheta=mwavelength
Columbs/second

3. velocity of a molecule of gas
sqrt(3KT/m)
(V^2)/R
qE
sqrt(T/(m/))

4. formula for Carnot efficiency
joules/second
((Th) -(Tl))/(Th)
Ed=V
sqrt(T/(m/))

5. heat during an isometric process
h(Fo)
(Patm) + (Pgauge)
n(Cv)(deltaT)
h/wavelength

6. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
E/B
(EMF)Rt/10
h/mv

7. magnification equation
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)
rF
delta x = (Vo)t + .5at^2

8. third kinematic
e=mc^2
0
E/B
V^2=(Vo)^2 +2a*change in x

9. force a charge in a Bfield
mV -m(Vo)
qVB
AV=(A2)(V2)
deltaU = deltaQ + deltaW

10. equation for the first law of thermodynamics
0
(I^2)R
qV
deltaU = deltaQ + deltaW

11. what direction is friction?
2Pi * sqrt(l/g)
(Di)/(Do) or (Hi)/(Ho)
qrB/m
opposite motion

12. type of collision where K is not conserved
inelastic collision
FV
J= Ft
M(Lf)

13. the force on a charge in an electric field
qE
Joules/Columb
opposite motion
h/wavelength

14. velocity of an electrion as it exitws from the hole
.5CV^2 or .5 Q^2/C or .5QV
qrB/m
d/2
M(Lf)

15. the units of current other than amps
mgCostheta(mu)d
(Patm) + (Pgauge)
Columbs/second
rF

16. units for voltage other than volts
Joules/Columb
dSintheta=mwavelength
FV
VI

17. focal length of a mirror with radius d
d/2
elastic collision
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)

18. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
inelastic collision
mgCostheta(mu)d
VI

19. forgotten power equation
dSintheta=mwavelength
FV
BLv
sqrt(3KT/m)

20. force of frction on an incline
e=mc^2
AV=(A2)(V2)
mgCostheta(mu)d
rF

21. formula for centripetal acceleration
(V^2)/r
G M/((d/2)^2)
K |q||Q|/r^2
(Di)/(Do) or (Hi)/(Ho)

22. formula equating energy and mass
e=mc^2
m(v^2)/qvB
2Pi * sqrt(l/g)
((Th) -(Tl))/(Th)

23. isometric
FV
.5KA^2
elastic collision
constant volume

24. first kinematic
V = (Vo) + at
Columbs/second
dSintheta=mwavelength
KI/r

25. formula for power with current and voltage
mgCostheta(mu)d
2nt=mwavelength
VI
((Qin) -(Qout))/(Qin)

26. velocity of waves on a string if tension is known
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
sqrt(T/(m/))
V+IR

27. the electric force between two objects of charge Q
(N2)/(N1)
roeVg
K |q||Q|/r^2
dSintheta=mwavelength

28. formula relating voltage and electric field
Ed=V
elastic collision
delta x = (Vo)t + .5at^2
((Qin) -(Qout))/(Qin)

29. heat required to melt a substance
M(Lf)
V = (Vo) + at
MC(deltaT)
1/2wavelength

30. isobaric
1/2wavelength
m(v^2)/qvB
constant pressure
n(Cv)(deltaT)

31. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(1/Do) + (1/Di) = (1/f)
G M/((d/2)^2)
n(Cv)(deltaT)
Ed=V

32. type of collision where objects stick togerther
KQ/r
perfectly inelastic collision
.5mV^2 + .5KA^2
m(v^2)/qvB

33. formula for charge stored in a capciator
qV
k|Q|/r^2
constant pressure
Q=CV

34. natural frequency of a closed tube of length L
BA
sqrt(T/(m/))
(No)(wavelength)=(Nn)(new wavelength)
1/4wavelength

35. formula for change in internal energy in a cosnstat volume PV process
((Qin) -(Qout))/(Qin)
roeVg
(3/2)nRdeltaT
joules/second

36. electric potential a distance r from a charge
KQ/r
.5CV^2 or .5 Q^2/C or .5QV
perfectly inelastic collision
KI/r

37. new wavelength of light as it enters a new substance
m(v^2)/qvB
h/mv
(No)(wavelength)=(Nn)(new wavelength)
FV

38. the units of power other than watts
-KA
joules/second
constant pressure
(Patm) + (Pgauge)

39. formula for efficiency not using work out
(N2)/(N1)
BA
((Qin) -(Qout))/(Qin)
rF

40. formula to find the absoluate pressure at the bottom of a pool
AV=(A2)(V2)
(Patm) + (Pgauge)
(hc/wavelength)=h(Fo) +(Vs)
(I^2)RT

41. change in internal energy during a cyclic process
qV
(Di)/(Do) or (Hi)/(Ho)
V^2=(Vo)^2 +2a*change in x
0

42. work energy theorum
V = (Vo) + at
KI/r
h(Fo)
net work = delta K

43. formula for power with Voltage and resistance
V^2=(Vo)^2 +2a*change in x
(V^2)/R
(1/Do) + (1/Di) = (1/f)
sqrt(T/(m/))

44. heat during a cyclic process (net heat)
((Th) -(Tl))/(Th)
deltaU -deltaW
k|Q|/r^2
(Di)/(Do) or (Hi)/(Ho)

45. formula for impluse involving time
(EMF)Rt/10
AV=(A2)(V2)
J= Ft
((Th) -(Tl))/(Th)

46. pressure
F/A
V^2=(Vo)^2 +2a*change in x
(Patm) + (Pgauge)
mV -m(Vo)

47. snells law
no temp change
(Fn)(mu)
nSintheta=nsintheta
BLv

48. 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
mV -m(Vo)
dSintheta=mwavelength
Ed=V

49. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
qV
V^2=(Vo)^2 +2a*change in x
V+IR

50. formula for finding the momentum of a photon
h/wavelength
MC(deltaT)
K |q||Q|/r^2
(3/2)nRdeltaT