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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. type of collision where K is not conserved
((Qin) -(Qout))/(Qin)
2nt=mwavelength
.5CV^2 or .5 Q^2/C or .5QV
inelastic collision

2. formula for period of a pendulum
MC(deltaT)
n(Cv)(deltaT)
2Pi * sqrt(l/g)
(hc/wavelength)=h(Fo) +(Vs)

3. natural frequency of a closed tube of length L
M(Lf)
delta x = (Vo)t + .5at^2
hc/wavelength
1/4wavelength

4. the force on a charge in an electric field
mgCostheta(mu)d
frequency never changes for light problems
qE
inelastic collision

5. work energy theorum
joules/second
net work = delta K
((Qin) -(Qout))/(Qin)
-KA

6. velocity of a molecule of gas
sqrt(3KT/m)
n(Cv)(deltaT)
(I^2)R
pL/A

7. heat required to melt a substance
M(Lf)
BLv
sqrt(3KT/m)
sqrt(T/(m/))

8. heat during a cyclic process (net heat)
deltaU -deltaW
deltaU = deltaQ + deltaW
0
no force (right hand rule)

9. hooke's law force of a spring
-KA
K |q||Q|/r^2
Columbs/second
sqrt(3KT/m)

10. formula for torque
L -LCostheta
nSintheta=nsintheta
rF
h/wavelength

11. equation for the first law of thermodynamics
MC(deltaT)
inelastic collision
(I^2)R
deltaU = deltaQ + deltaW

12. focal length of a mirror with radius d
d/2
rF
(V^2)/R
((Qin) -(Qout))/(Qin)

13. formula for constructive interference in a thin membrane with two phase changes
E/B
Columbs/second
2nt=mwavelength
AV=(A2)(V2)

14. velocity of an electrion as it exitws from the hole
qrB/m
(I^2)RT
Columbs/second
Ed=V

15. natural frequency of an open tube of length L
(I^2)RT
qrB/m
no force (right hand rule)
1/2wavelength

16. units for voltage other than volts
V+IR
qVB
Joules/Columb
hc/wavelength

17. formula to find the gauge pressure at the bottom of a pool
roegh
K |q||Q|/r^2
dSintheta=mwavelength
KQ/r

18. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
constant volume
(hc/wavelength)=h(Fo) +(Vs)
1/4wavelength

19. formula for height of the block (at the start of a pendulum string) in terms of theta and L
GM*M/(r^2)
L -LCostheta
V+IR
frequency never changes for light problems

20. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
KQ/r
frequency never changes for light problems
(1/Do) + (1/Di) = (1/f)

21. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
AV=(A2)(V2)
opposite motion
((Th) -(Tl))/(Th)

22. formula for constructive interference in a diffraction grating
((Th) -(Tl))/(Th)
m(v^2)/qvB
dSintheta=mwavelength
opposite motion

23. what direction is friction?
BLv
m(v^2)/qvB
opposite motion
MC(deltaT)

24. formula for impluse involving time
rF
J= Ft
mgCostheta(mu)d
nSintheta=nsintheta

25. the units of power other than watts
joules/second
V^2=(Vo)^2 +2a*change in x
constant pressure
((Qin) -(Qout))/(Qin)

26. type of collision where objects stick togerther
((Th) -(Tl))/(Th)
(No)(wavelength)=(Nn)(new wavelength)
V^2=(Vo)^2 +2a*change in x
perfectly inelastic collision

27. heat during an isometric process
mgCostheta(mu)d
G M/((d/2)^2)
qrB/m
n(Cv)(deltaT)

28. type of collision where K is conserved
no heat flow
VI
FV
elastic collision

29. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
1/2wavelength
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)
pL/A

30. electric potential a distance r from a charge
(3/2)nRdeltaT
KQ/r
KI/r
elastic collision

31. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
BA
mV -m(Vo)
.5mV^2 + .5KA^2
perfectly inelastic collision

32. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(1/Do) + (1/Di) = (1/f)
(Fn)(mu)
pL/A

33. heat required to change temperature of a substance
MC(deltaT)
(V^2)/r
Joules/Columb
(V^2)/R

34. EMF of a battery having internal resistance R
V+IR
perfectly inelastic collision
joules/second
V = (Vo) + at

35. formula to find the absoluate pressure at the bottom of a pool
rF
(Patm) + (Pgauge)
qE
opposite motion

36. equation of continuity
BA
.5CV^2 or .5 Q^2/C or .5QV
VI
AV=(A2)(V2)

37. new frequency of light as it enters a new substance
frequency never changes for light problems
2nt=mwavelength
E/B
G M/((d/2)^2)

38. formula for the wavelength (debroglie wavelength) of a moving particle
delta x = (Vo)t + .5at^2
pL/A
h/mv
(N2)/(N1)

39. formula for Carnot efficiency
(V^2)/R
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV
((Th) -(Tl))/(Th)

40. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
M(Lf)
d/2
K |q||Q|/r^2

41. total capacitance of capacitors in series
.5mV^2 + .5KA^2
qVB
1/((1/C)+(1/C)..........)
(V^2)/R

42. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
F/A
(V^2)/R
V^2=(Vo)^2 +2a*change in x

43. voltage induced in a rod moving through a uniform magnetic field
d/2
BLv
constant volume
n(Cv)(deltaT)

44. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
(No)(wavelength)=(Nn)(new wavelength)
2nt=mwavelength
qE

45. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
Q=CV
pL/A
E/B
FV

46. formula for finding the momentum of a photon
Q=CV
dSintheta=mwavelength
1/((1/C)+(1/C)..........)
h/wavelength

47. force a charge in a Bfield
qVB
F/A
hc/wavelength
J= Ft

48. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
1/4wavelength
FV
qV
elastic collision

49. energy of a photon if wavelength is known
net work = delta K
J= Ft
Columbs/second
hc/wavelength

50. formula for finding magnetic flux
no force (right hand rule)
BA
0
K |q||Q|/r^2