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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. forgotten power equation
FV
0
F/A
qVB

2. isothermal
(V^2)/r
(1/Do) + (1/Di) = (1/f)
rF
no temp change

3. electric field in a distance r from a charge
no heat flow
((Qin) -(Qout))/(Qin)
k|Q|/r^2
GM*M/(r^2)

4. type of collision where objects stick togerther
net work = delta K
perfectly inelastic collision
(V^2)/R
(EMF)Rt/10

5. energy of a photon if wavelength is known
k|Q|/r^2
sqrt(T/(m/))
(Wnet)/(Qin)
hc/wavelength

6. formula for finding the momentum of a photon
h/wavelength
BLv
Columbs/second
1/((1/C)+(1/C)..........)

7. new wavelength of light as it enters a new substance
constant volume
1/((1/C)+(1/C)..........)
(No)(wavelength)=(Nn)(new wavelength)
no force (right hand rule)

8. formula for period of a pendulum
BLv
AV=(A2)(V2)
2Pi * sqrt(l/g)
V+IR

9. velocity of a molecule of gas
sqrt(3KT/m)
rF
((Th) -(Tl))/(Th)
Columbs/second

10. formula for impluse involving time
V+IR
hc/wavelength
J= Ft
k|Q|/r^2

11. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(3/2)nRdeltaT
KI/r
net work = delta K
L -LCostheta

12. formula for efficiency of a heat engine using work out
(V^2)/r
(3/2)nRdeltaT
qV
(Wnet)/(Qin)

13. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
sqrt(T/(m/))
d/2
1/((1/C)+(1/C)..........)

14. formula for centripetal acceleration
(V^2)/r
2nt=mwavelength
e=mc^2
deltaU -deltaW

15. lens/mirror equation
L -LCostheta
k|Q|/r^2
(1/Do) + (1/Di) = (1/f)
.5KA^2

16. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
deltaU -deltaW
(Di)/(Do) or (Hi)/(Ho)
h/mv
G M/((d/2)^2)

17. formula for buoyant force
roeVg
Q=CV
1/((1/C)+(1/C)..........)
net work = delta K

18. new frequency of light as it enters a new substance
Joules/Columb
Ed=V
V^2=(Vo)^2 +2a*change in x
frequency never changes for light problems

19. third kinematic
roegh
dSintheta=mwavelength
qV
V^2=(Vo)^2 +2a*change in x

20. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
deltaU = deltaQ + deltaW
(I^2)RT
-KA
qrB/m

21. formula for constructive interference in a diffraction grating
Q=CV
(3/2)nRdeltaT
dSintheta=mwavelength
no temp change

22. work energy theorum
KQ/r
sqrt(T/(m/))
VI
net work = delta K

23. equation for the first law of thermodynamics
F/A
e=mc^2
deltaU = deltaQ + deltaW
KI/r

24. formula for Carnot efficiency
FV
K |q||Q|/r^2
e=mc^2
((Th) -(Tl))/(Th)

25. formula for critical angle
(N2)/(N1)
perfectly inelastic collision
sqrt(3KT/m)
qV

26. velocity of an electrion as it exitws from the hole
k|Q|/r^2
qrB/m
opposite motion
L -LCostheta

27. isobaric
sqrt(3KT/m)
-KA
constant pressure
delta x = (Vo)t + .5at^2

28. pressure
F/A
h/wavelength
1/4wavelength
(3/2)nRdeltaT

29. units for voltage other than volts
Joules/Columb
no heat flow
L -LCostheta
rF

30. what direction is friction?
opposite motion
BA
(3/2)nRdeltaT
V+IR

31. formula for change in internal energy in a cosnstat volume PV process
1/4wavelength
(Fn)(mu)
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT

32. formula for impulse involving momentum
MC(deltaT)
KI/r
(hc/wavelength)=h(Fo) +(Vs)
mV -m(Vo)

33. heat required to melt a substance
M(Lf)
KQ/r
frequency never changes for light problems
(Fn)(mu)

34. natural frequency of a closed tube of length L
joules/second
Columbs/second
(Wnet)/(Qin)
1/4wavelength

35. formula to find the gauge pressure at the bottom of a pool
(Di)/(Do) or (Hi)/(Ho)
roegh
(3/2)nRdeltaT
V = (Vo) + at

36. formula for charge stored in a capciator
(I^2)R
Q=CV
AV=(A2)(V2)
no heat flow

37. the units of current other than amps
Columbs/second
frequency never changes for light problems
nSintheta=nsintheta
.5KA^2

38. formula relating voltage and electric field
hc/wavelength
(I^2)R
Ed=V
-KA

39. electric potential a distance r from a charge
KQ/r
-KA
constant volume
.5KA^2

40. formula equating energy and mass
e=mc^2
BLv
h(Fo)
constant volume

41. first kinematic
(hc/wavelength)=h(Fo) +(Vs)
perfectly inelastic collision
constant pressure
V = (Vo) + at

42. isometric
n(Cv)(deltaT)
no heat flow
constant volume
K |q||Q|/r^2

43. type of collision where K is not conserved
(Patm) + (Pgauge)
inelastic collision
dSintheta=mwavelength
delta x = (Vo)t + .5at^2

44. EMF of a battery having internal resistance R
V+IR
qrB/m
deltaU -deltaW
h(Fo)

45. radius of curvature of a charged particle as it enters a uniform magnetic field
.5KA^2
m(v^2)/qvB
n(Cv)(deltaT)
e=mc^2

46. formula for finding magnetic flux
M(Lf)
BLv
BA
Joules/Columb

47. formula for power with current and voltage
Q=CV
elastic collision
E/B
VI

48. formula for torque
rF
frequency never changes for light problems
qV
n(Cv)(deltaT)

49. voltage induced in a rod moving through a uniform magnetic field
e=mc^2
(Di)/(Do) or (Hi)/(Ho)
(I^2)RT
BLv

50. formula for constructive interference in a thin membrane with two phase changes
nSintheta=nsintheta
2nt=mwavelength
BA
V^2=(Vo)^2 +2a*change in x