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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. energy of a photon if wavelength is known
MC(deltaT)
(V^2)/R
hc/wavelength
m(v^2)/qvB

2. formula for constructive interference in a diffraction grating
0
(Fn)(mu)
2Pi * sqrt(l/g)
dSintheta=mwavelength

3. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
G M/((d/2)^2)
L -LCostheta
(Fn)(mu)
E/B

4. force of gravity between two objects of mass m
hc/wavelength
joules/second
GM*M/(r^2)
net work = delta K

5. new frequency of light as it enters a new substance
frequency never changes for light problems
delta x = (Vo)t + .5at^2
opposite motion
mV -m(Vo)

6. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
e=mc^2
(I^2)R
Ed=V

7. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(3/2)nRdeltaT
elastic collision
constant volume
G M/((d/2)^2)

8. formula for charge stored in a capciator
BA
1/4wavelength
(Fn)(mu)
Q=CV

9. formula for power with current and voltage
VI
(V^2)/R
roeVg
no force (right hand rule)

10. formula for finding the momentum of a photon
(Wnet)/(Qin)
h/wavelength
(EMF)Rt/10
pL/A

11. formula to find the absoluate pressure at the bottom of a pool
V+IR
(Patm) + (Pgauge)
h/wavelength
(Wnet)/(Qin)

12. pressure
roeVg
J= Ft
F/A
Ed=V

13. third kinematic
opposite motion
KI/r
V^2=(Vo)^2 +2a*change in x
M(Lf)

14. voltage induced in a rod moving through a uniform magnetic field
sqrt(3KT/m)
GM*M/(r^2)
Joules/Columb
BLv

15. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
.5KA^2
(1/Do) + (1/Di) = (1/f)
(Fn)(mu)

16. units for voltage other than volts
VI
n(Cv)(deltaT)
qVB
Joules/Columb

17. force of friction
(Fn)(mu)
dSintheta=mwavelength
qE
J= Ft

18. hooke's law force of a spring
qVB
-KA
(N2)/(N1)
0

19. force of frction on an incline
G M/((d/2)^2)
mgCostheta(mu)d
no force (right hand rule)
Ed=V

20. type of collision where K is not conserved
(1/Do) + (1/Di) = (1/f)
(Fn)(mu)
inelastic collision
2nt=mwavelength

21. change in internal energy during a cyclic process
k|Q|/r^2
0
(Wnet)/(Qin)
qE

22. the units of current other than amps
n(Cv)(deltaT)
Columbs/second
joules/second
GM*M/(r^2)

23. formula for torque
delta x = (Vo)t + .5at^2
.5KA^2
rF
inelastic collision

24. formula for period of a pendulum
frequency never changes for light problems
2Pi * sqrt(l/g)
(EMF)Rt/10
(Di)/(Do) or (Hi)/(Ho)

25. heat required to melt a substance
M(Lf)
((Qin) -(Qout))/(Qin)
BLv
frequency never changes for light problems

26. formula for finding the magnetic field a distance r from a current carrying wire
k|Q|/r^2
MC(deltaT)
KI/r
-KA

27. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
no heat flow
V^2=(Vo)^2 +2a*change in x
rF

28. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
constant pressure
e=mc^2
no heat flow
(EMF)Rt/10

29. snells law
V+IR
(Fn)(mu)
(Wnet)/(Qin)
nSintheta=nsintheta

30. heat during an isometric process
joules/second
.5KA^2
F/A
n(Cv)(deltaT)

31. formula for buoyant force
mV -m(Vo)
(Fn)(mu)
VI
roeVg

32. formula to find the gauge pressure at the bottom of a pool
MC(deltaT)
d/2
roegh
(3/2)nRdeltaT

33. formula for change in internal energy in a cosnstat volume PV process
V^2=(Vo)^2 +2a*change in x
no force (right hand rule)
((Th) -(Tl))/(Th)
(3/2)nRdeltaT

34. formula equating energy and mass
e=mc^2
h/mv
sqrt(T/(m/))
k|Q|/r^2

35. electric potential a distance r from a charge
h(Fo)
qE
KQ/r
FV

36. natural frequency of a closed tube of length L
(3/2)nRdeltaT
-KA
1/4wavelength
qrB/m

37. natural frequency of an open tube of length L
V^2=(Vo)^2 +2a*change in x
1/2wavelength
n(Cv)(deltaT)
elastic collision

38. velocity of a molecule of gas
dSintheta=mwavelength
sqrt(3KT/m)
no temp change
d/2

39. first kinematic
sqrt(3KT/m)
2nt=mwavelength
(3/2)nRdeltaT
V = (Vo) + at

40. EMF of a battery having internal resistance R
delta x = (Vo)t + .5at^2
net work = delta K
V+IR
J= Ft

41. formula for efficiency not using work out
E/B
((Qin) -(Qout))/(Qin)
(V^2)/R
AV=(A2)(V2)

42. forgotten power equation
KQ/r
FV
BLv
joules/second

43. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
e=mc^2
constant volume
(EMF)Rt/10
qV

44. type of collision where K is conserved
elastic collision
d/2
Columbs/second
k|Q|/r^2

45. equation of continuity
(N2)/(N1)
joules/second
.5mV^2 + .5KA^2
AV=(A2)(V2)

46. the units of power other than watts
Ed=V
1/2wavelength
joules/second
n(Cv)(deltaT)

47. formula for impulse involving momentum
h/mv
FV
mV -m(Vo)
MC(deltaT)

48. adibatic
no heat flow
roegh
(1/Do) + (1/Di) = (1/f)
(N2)/(N1)

49. formula relating voltage and electric field
roeVg
Ed=V
(I^2)RT
V = (Vo) + at

50. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
roegh
m(v^2)/qvB
hc/wavelength