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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. voltage induced in a rod moving through a uniform magnetic field
delta x = (Vo)t + .5at^2
.5mV^2 + .5KA^2
h/wavelength
BLv

2. formula for change in internal energy in a cosnstat volume PV process
0
(3/2)nRdeltaT
V^2=(Vo)^2 +2a*change in x
no force (right hand rule)

3. total capacitance of capacitors in series
roeVg
BA
(No)(wavelength)=(Nn)(new wavelength)
1/((1/C)+(1/C)..........)

4. third kinematic
V^2=(Vo)^2 +2a*change in x
no temp change
((Qin) -(Qout))/(Qin)
qV

5. equation for the first law of thermodynamics
(N2)/(N1)
elastic collision
BLv
deltaU = deltaQ + deltaW

6. formula to find the absoluate pressure at the bottom of a pool
qV
(Patm) + (Pgauge)
hc/wavelength
no temp change

7. formula for power with current and voltage
VI
mgCostheta(mu)d
mV -m(Vo)
(Fn)(mu)

8. formula for Carnot efficiency
V = (Vo) + at
Joules/Columb
((Th) -(Tl))/(Th)
BA

9. type of collision where objects stick togerther
perfectly inelastic collision
(hc/wavelength)=h(Fo) +(Vs)
(3/2)nRdeltaT
(Patm) + (Pgauge)

10. EMF of a battery having internal resistance R
V^2=(Vo)^2 +2a*change in x
1/((1/C)+(1/C)..........)
.5CV^2 or .5 Q^2/C or .5QV
V+IR

11. the units of current other than amps
Columbs/second
F/A
qE
V^2=(Vo)^2 +2a*change in x

12. focal length of a mirror with radius d
qV
inelastic collision
no heat flow
d/2

13. formula for critical angle
hc/wavelength
(V^2)/r
qrB/m
(N2)/(N1)

14. isobaric
1/4wavelength
roegh
constant pressure
2nt=mwavelength

15. forgotten power equation
((Th) -(Tl))/(Th)
nSintheta=nsintheta
FV
L -LCostheta

16. formula for efficiency of a heat engine using work out
net work = delta K
Ed=V
m(v^2)/qvB
(Wnet)/(Qin)

17. isometric
1/4wavelength
qVB
constant volume
pL/A

18. pressure
no force (right hand rule)
h(Fo)
Ed=V
F/A

19. type of collision where K is conserved
Q=CV
1/2wavelength
elastic collision
pL/A

20. work energy theorum
sqrt(T/(m/))
net work = delta K
hc/wavelength
joules/second

21. heat required to change temperature of a substance
V+IR
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
MC(deltaT)

22. formula for impulse involving momentum
delta x = (Vo)t + .5at^2
mV -m(Vo)
J= Ft
dSintheta=mwavelength

23. formula for finding magnetic flux
m(v^2)/qvB
deltaU -deltaW
BA
G M/((d/2)^2)

24. adibatic
Ed=V
perfectly inelastic collision
no heat flow
h(Fo)

25. lens/mirror equation
(EMF)Rt/10
joules/second
(1/Do) + (1/Di) = (1/f)
1/2wavelength

26. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
elastic collision
mgCostheta(mu)d
qV
Joules/Columb

27. force a charge in a Bfield
h/mv
qVB
E/B
hc/wavelength

28. velocity of a molecule of gas
h/mv
Q=CV
constant volume
sqrt(3KT/m)

29. magnification equation
roegh
F/A
(Di)/(Do) or (Hi)/(Ho)
nSintheta=nsintheta

30. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
deltaU -deltaW
(V^2)/R
E/B
frequency never changes for light problems

31. first kinematic
no force (right hand rule)
mV -m(Vo)
k|Q|/r^2
V = (Vo) + at

32. formula for height of the block (at the start of a pendulum string) in terms of theta and L
.5CV^2 or .5 Q^2/C or .5QV
deltaU = deltaQ + deltaW
L -LCostheta
hc/wavelength

33. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
V = (Vo) + at
G M/((d/2)^2)
.5KA^2
no temp change

34. the units of power other than watts
joules/second
mV -m(Vo)
(No)(wavelength)=(Nn)(new wavelength)
F/A

35. resistance of a wire
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
F/A
pL/A

36. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
h(Fo)
nSintheta=nsintheta
delta x = (Vo)t + .5at^2
(I^2)RT

37. formula for finding the work function of a metal if the cutoff frequency is known
frequency never changes for light problems
L -LCostheta
mgCostheta(mu)d
h(Fo)

38. formula for torque
.5CV^2 or .5 Q^2/C or .5QV
no temp change
-KA
rF

39. energy of a photon if wavelength is known
2nt=mwavelength
constant pressure
hc/wavelength
K |q||Q|/r^2

40. electric field in a distance r from a charge
k|Q|/r^2
nSintheta=nsintheta
0
(EMF)Rt/10

41. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
qVB
1/((1/C)+(1/C)..........)
2Pi * sqrt(l/g)

42. formula for finding the momentum of a photon
perfectly inelastic collision
(Fn)(mu)
no force (right hand rule)
h/wavelength

43. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
.5CV^2 or .5 Q^2/C or .5QV
MC(deltaT)
0

44. type of collision where K is not conserved
inelastic collision
no force (right hand rule)
(I^2)RT
constant pressure

45. force of gravity between two objects of mass m
GM*M/(r^2)
(Fn)(mu)
K |q||Q|/r^2
sqrt(T/(m/))

46. what direction is friction?
dSintheta=mwavelength
opposite motion
h(Fo)
V = (Vo) + at

47. formula for buoyant force
pL/A
roeVg
rF
nSintheta=nsintheta

48. natural frequency of a closed tube of length L
1/4wavelength
M(Lf)
(3/2)nRdeltaT
mgCostheta(mu)d

49. new frequency of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems
e=mc^2
(I^2)R

50. the force on a charge moving parallel to a magnetic field
h/wavelength
no force (right hand rule)
MC(deltaT)
(I^2)RT