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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 efficiency not using work out
((Qin) -(Qout))/(Qin)
Columbs/second
qV
h(Fo)

2. heat required to melt a substance
M(Lf)
pL/A
2Pi * sqrt(l/g)
net work = delta K

3. the units of power other than watts
k|Q|/r^2
joules/second
qE
GM*M/(r^2)

4. formula relating voltage and electric field
J= Ft
Ed=V
2nt=mwavelength
BA

5. formula for power with Voltage and resistance
net work = delta K
L -LCostheta
(N2)/(N1)
(V^2)/R

6. units for voltage other than volts
perfectly inelastic collision
Joules/Columb
(N2)/(N1)
mV -m(Vo)

7. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(Patm) + (Pgauge)
F/A
sqrt(T/(m/))
.5mV^2 + .5KA^2

8. new wavelength of light as it enters a new substance
E/B
Joules/Columb
(No)(wavelength)=(Nn)(new wavelength)
(V^2)/R

9. formula for centripetal acceleration
perfectly inelastic collision
opposite motion
(I^2)R
(V^2)/r

10. heat during an isometric process
roegh
e=mc^2
no temp change
n(Cv)(deltaT)

11. formula for constructive interference in a diffraction grating
AV=(A2)(V2)
sqrt(T/(m/))
.5KA^2
dSintheta=mwavelength

12. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(1/Do) + (1/Di) = (1/f)
E/B
qE
m(v^2)/qvB

13. electric potential a distance r from a charge
(No)(wavelength)=(Nn)(new wavelength)
hc/wavelength
deltaU = deltaQ + deltaW
KQ/r

14. force of friction
V+IR
L -LCostheta
rF
(Fn)(mu)

15. isothermal
nSintheta=nsintheta
qV
K |q||Q|/r^2
no temp change

16. snells law
frequency never changes for light problems
nSintheta=nsintheta
qrB/m
opposite motion

17. formula for finding the work function of a metal if the cutoff frequency is known
KI/r
h(Fo)
(I^2)R
deltaU -deltaW

18. third kinematic
V^2=(Vo)^2 +2a*change in x
qE
AV=(A2)(V2)
V = (Vo) + at

19. formula for power with current and resistance
mgCostheta(mu)d
(Patm) + (Pgauge)
(I^2)R
rF

20. the units of current other than amps
Columbs/second
F/A
mV -m(Vo)
1/2wavelength

21. forgotten power equation
FV
(Fn)(mu)
nSintheta=nsintheta
qVB

22. velocity of an electrion as it exitws from the hole
qrB/m
no heat flow
n(Cv)(deltaT)
delta x = (Vo)t + .5at^2

23. adibatic
k|Q|/r^2
(V^2)/R
KI/r
no heat flow

24. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
.5CV^2 or .5 Q^2/C or .5QV
no heat flow
(EMF)Rt/10
-KA

25. first kinematic
2nt=mwavelength
V = (Vo) + at
(V^2)/R
((Qin) -(Qout))/(Qin)

26. natural frequency of an open tube of length L
d/2
1/2wavelength
m(v^2)/qvB
qE

27. formula for finding the momentum of a photon
.5mV^2 + .5KA^2
h/wavelength
1/((1/C)+(1/C)..........)
no heat flow

28. formula for energy of a spring mass when spring is at maximum displacement
e=mc^2
((Th) -(Tl))/(Th)
dSintheta=mwavelength
.5KA^2

29. total capacitance of capacitors in series
pL/A
1/((1/C)+(1/C)..........)
MC(deltaT)
KI/r

30. new frequency of light as it enters a new substance
.5CV^2 or .5 Q^2/C or .5QV
frequency never changes for light problems
nSintheta=nsintheta
Ed=V

31. formula for torque
roegh
hc/wavelength
rF
(3/2)nRdeltaT

32. electric field in a distance r from a charge
k|Q|/r^2
Joules/Columb
(Fn)(mu)
constant volume

33. what direction is friction?
qV
opposite motion
inelastic collision
BA

34. EMF of a battery having internal resistance R
K |q||Q|/r^2
h(Fo)
no force (right hand rule)
V+IR

35. work energy theorum
net work = delta K
sqrt(3KT/m)
M(Lf)
elastic collision

36. type of collision where objects stick togerther
frequency never changes for light problems
(No)(wavelength)=(Nn)(new wavelength)
perfectly inelastic collision
MC(deltaT)

37. magnification equation
deltaU -deltaW
(Di)/(Do) or (Hi)/(Ho)
(V^2)/r
mgCostheta(mu)d

38. formula for charge stored in a capciator
Q=CV
n(Cv)(deltaT)
e=mc^2
no temp change

39. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
pL/A
2Pi * sqrt(l/g)
Joules/Columb

40. hooke's law force of a spring
d/2
K |q||Q|/r^2
-KA
FV

41. pressure
elastic collision
no heat flow
VI
F/A

42. the force on a charge moving parallel to a magnetic field
sqrt(T/(m/))
no heat flow
(EMF)Rt/10
no force (right hand rule)

43. voltage induced in a rod moving through a uniform magnetic field
1/2wavelength
constant volume
d/2
BLv

44. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
VI
K |q||Q|/r^2
no temp change
qV

45. velocity of a molecule of gas
qV
(Patm) + (Pgauge)
sqrt(3KT/m)
V+IR

46. velocity of waves on a string if tension is known
.5KA^2
E/B
sqrt(T/(m/))
h/mv

47. heat during a cyclic process (net heat)
deltaU -deltaW
qrB/m
qVB
perfectly inelastic collision

48. energy of a photon if wavelength is known
e=mc^2
.5mV^2 + .5KA^2
F/A
hc/wavelength

49. energy stored in a capacitor
2nt=mwavelength
.5CV^2 or .5 Q^2/C or .5QV
Ed=V
m(v^2)/qvB

50. force of gravity between two objects of mass m
(Fn)(mu)
GM*M/(r^2)
e=mc^2
(Patm) + (Pgauge)