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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. the electric force between two objects of charge Q
elastic collision
KQ/r
G M/((d/2)^2)
K |q||Q|/r^2

2. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
sqrt(T/(m/))
mgCostheta(mu)d
roeVg

3. formula for efficiency of a heat engine using work out
k|Q|/r^2
MC(deltaT)
joules/second
(Wnet)/(Qin)

4. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
2nt=mwavelength
pL/A
m(v^2)/qvB

5. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
opposite motion
inelastic collision
(I^2)RT
((Th) -(Tl))/(Th)

6. formula for Carnot efficiency
qV
((Th) -(Tl))/(Th)
delta x = (Vo)t + .5at^2
-KA

7. formula relating voltage and electric field
Columbs/second
Ed=V
constant volume
hc/wavelength

8. heat during an isometric process
n(Cv)(deltaT)
sqrt(3KT/m)
sqrt(T/(m/))
((Th) -(Tl))/(Th)

9. total capacitance of capacitors in series
L -LCostheta
V^2=(Vo)^2 +2a*change in x
1/((1/C)+(1/C)..........)
pL/A

10. formula for period of a pendulum
roeVg
(I^2)R
K |q||Q|/r^2
2Pi * sqrt(l/g)

11. formula for power with current and voltage
(Wnet)/(Qin)
nSintheta=nsintheta
VI
V+IR

12. heat required to change temperature of a substance
Joules/Columb
inelastic collision
MC(deltaT)
((Qin) -(Qout))/(Qin)

13. new wavelength of light as it enters a new substance
2nt=mwavelength
(No)(wavelength)=(Nn)(new wavelength)
(I^2)RT
V+IR

14. snells law
FV
(1/Do) + (1/Di) = (1/f)
(Patm) + (Pgauge)
nSintheta=nsintheta

15. the force on a charge in an electric field
.5KA^2
qE
k|Q|/r^2
2nt=mwavelength

16. formula for power with current and resistance
qV
nSintheta=nsintheta
(I^2)R
inelastic collision

17. formula for constructive interference in a diffraction grating
e=mc^2
1/2wavelength
dSintheta=mwavelength
MC(deltaT)

18. equation of continuity
d/2
nSintheta=nsintheta
L -LCostheta
AV=(A2)(V2)

19. energy of a photon if wavelength is known
Q=CV
hc/wavelength
(hc/wavelength)=h(Fo) +(Vs)
KI/r

20. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(EMF)Rt/10
L -LCostheta
VI
V = (Vo) + at

21. formula for impluse involving time
rF
2nt=mwavelength
J= Ft
MC(deltaT)

22. formula to find the absoluate pressure at the bottom of a pool
k|Q|/r^2
qV
nSintheta=nsintheta
(Patm) + (Pgauge)

23. the units of current other than amps
2nt=mwavelength
delta x = (Vo)t + .5at^2
Columbs/second
L -LCostheta

24. formula for charge stored in a capciator
M(Lf)
(Patm) + (Pgauge)
hc/wavelength
Q=CV

25. voltage induced in a rod moving through a uniform magnetic field
Ed=V
opposite motion
KI/r
BLv

26. electric potential a distance r from a charge
KQ/r
hc/wavelength
roegh
mV -m(Vo)

27. formula for change in internal energy in a cosnstat volume PV process
(Patm) + (Pgauge)
(3/2)nRdeltaT
(Wnet)/(Qin)
GM*M/(r^2)

28. pressure
KI/r
F/A
(V^2)/r
(N2)/(N1)

29. third kinematic
inelastic collision
V^2=(Vo)^2 +2a*change in x
V+IR
net work = delta K

30. magnification equation
(Di)/(Do) or (Hi)/(Ho)
elastic collision
sqrt(T/(m/))
(No)(wavelength)=(Nn)(new wavelength)

31. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
h/wavelength
G M/((d/2)^2)
pL/A
(I^2)RT

32. what direction is friction?
opposite motion
((Th) -(Tl))/(Th)
(V^2)/R
h/mv

33. formula equating energy and mass
AV=(A2)(V2)
e=mc^2
no heat flow
J= Ft

34. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
no temp change
(EMF)Rt/10
M(Lf)
(1/Do) + (1/Di) = (1/f)

35. natural frequency of an open tube of length L
frequency never changes for light problems
1/2wavelength
constant volume
E/B

36. force of frction on an incline
elastic collision
.5mV^2 + .5KA^2
mgCostheta(mu)d
VI

37. hooke's law force of a spring
sqrt(T/(m/))
MC(deltaT)
-KA
no heat flow

38. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(Wnet)/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
KQ/r
qV

39. equation for the first law of thermodynamics
qV
.5mV^2 + .5KA^2
deltaU = deltaQ + deltaW
d/2

40. force of friction
(V^2)/R
(Fn)(mu)
.5mV^2 + .5KA^2
sqrt(3KT/m)

41. velocity of an electrion as it exitws from the hole
F/A
roegh
net work = delta K
qrB/m

42. electric field in a distance r from a charge
k|Q|/r^2
dSintheta=mwavelength
0
d/2

43. velocity of a molecule of gas
k|Q|/r^2
GM*M/(r^2)
FV
sqrt(3KT/m)

44. formula for finding the work function of a metal if the cutoff frequency is known
V+IR
(V^2)/r
constant pressure
h(Fo)

45. formula for critical angle
k|Q|/r^2
(N2)/(N1)
J= Ft
h/mv

46. heat required to melt a substance
Ed=V
VI
M(Lf)
h(Fo)

47. formula for the wavelength (debroglie wavelength) of a moving particle
nSintheta=nsintheta
h/mv
qVB
qV

48. isothermal
constant volume
G M/((d/2)^2)
no temp change
(Wnet)/(Qin)

49. type of collision where objects stick togerther
perfectly inelastic collision
Joules/Columb
V^2=(Vo)^2 +2a*change in x
1/2wavelength

50. EMF of a battery having internal resistance R
.5CV^2 or .5 Q^2/C or .5QV
(EMF)Rt/10
V+IR
M(Lf)