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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.
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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 relating voltage and electric field
(V^2)/R
(3/2)nRdeltaT
dSintheta=mwavelength
Ed=V

2. resistance of a wire
-KA
pL/A
KQ/r
(hc/wavelength)=h(Fo) +(Vs)

3. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
delta x = (Vo)t + .5at^2
J= Ft
(EMF)Rt/10

4. the electric force between two objects of charge Q
sqrt(3KT/m)
.5mV^2 + .5KA^2
K |q||Q|/r^2
k|Q|/r^2

5. formula for height of the block (at the start of a pendulum string) in terms of theta and L
joules/second
no heat flow
nSintheta=nsintheta
L -LCostheta

6. formula for power with Voltage and resistance
.5CV^2 or .5 Q^2/C or .5QV
VI
(3/2)nRdeltaT
(V^2)/R

7. adibatic
((Qin) -(Qout))/(Qin)
n(Cv)(deltaT)
.5KA^2
no heat flow

8. type of collision where objects stick togerther
no force (right hand rule)
perfectly inelastic collision
deltaU = deltaQ + deltaW
elastic collision

9. formula for the wavelength (debroglie wavelength) of a moving particle
e=mc^2
no heat flow
h/wavelength
h/mv

10. energy stored in a capacitor
qV
F/A
GM*M/(r^2)
.5CV^2 or .5 Q^2/C or .5QV

11. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
((Th) -(Tl))/(Th)
.5CV^2 or .5 Q^2/C or .5QV
(V^2)/r

12. heat required to change temperature of a substance
hc/wavelength
MC(deltaT)
(V^2)/R
mgCostheta(mu)d

13. formula for buoyant force
sqrt(T/(m/))
((Th) -(Tl))/(Th)
roeVg
Ed=V

14. formula for finding the momentum of a photon
h/wavelength
(V^2)/R
inelastic collision
constant volume

15. formula equating energy and mass
qrB/m
dSintheta=mwavelength
e=mc^2
no heat flow

16. formula for charge stored in a capciator
Q=CV
roeVg
(1/Do) + (1/Di) = (1/f)
k|Q|/r^2

17. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
(I^2)R
L -LCostheta
G M/((d/2)^2)

18. voltage induced in a rod moving through a uniform magnetic field
2Pi * sqrt(l/g)
BLv
(No)(wavelength)=(Nn)(new wavelength)
BA

19. equation of continuity
AV=(A2)(V2)
no force (right hand rule)
(Fn)(mu)
roeVg

20. isothermal
elastic collision
no temp change
G M/((d/2)^2)
(Patm) + (Pgauge)

21. energy of a photon if wavelength is known
hc/wavelength
joules/second
e=mc^2
-KA

22. snells law
nSintheta=nsintheta
opposite motion
KQ/r
VI

23. formula for power with current and resistance
qVB
(I^2)R
BLv
qV

24. isobaric
constant pressure
d/2
(hc/wavelength)=h(Fo) +(Vs)
roeVg

25. focal length of a mirror with radius d
h/wavelength
h(Fo)
(V^2)/R
d/2

26. force of frction on an incline
1/4wavelength
qV
(I^2)R
mgCostheta(mu)d

27. electric potential a distance r from a charge
FV
KQ/r
(3/2)nRdeltaT
-KA

28. force of friction
((Qin) -(Qout))/(Qin)
(Fn)(mu)
no temp change
perfectly inelastic collision

29. second kinematic
2Pi * sqrt(l/g)
delta x = (Vo)t + .5at^2
-KA
qVB

30. magnification equation
net work = delta K
(Di)/(Do) or (Hi)/(Ho)
(Fn)(mu)
VI

31. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
h/mv
2Pi * sqrt(l/g)
sqrt(3KT/m)

32. hooke's law force of a spring
-KA
1/2wavelength
Ed=V
qVB

33. the force on a charge moving parallel to a magnetic field
V^2=(Vo)^2 +2a*change in x
no temp change
no force (right hand rule)
qV

34. velocity of an electrion as it exitws from the hole
L -LCostheta
BA
no heat flow
qrB/m

35. isometric
constant volume
e=mc^2
elastic collision
2nt=mwavelength

36. formula for impulse involving momentum
inelastic collision
hc/wavelength
Q=CV
mV -m(Vo)

37. natural frequency of a closed tube of length L
Columbs/second
n(Cv)(deltaT)
(V^2)/R
1/4wavelength

38. formula for finding the magnetic field a distance r from a current carrying wire
e=mc^2
KI/r
perfectly inelastic collision
deltaU -deltaW

39. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
frequency never changes for light problems
V+IR
((Th) -(Tl))/(Th)

40. type of collision where K is not conserved
2nt=mwavelength
GM*M/(r^2)
qE
inelastic collision

41. pressure
F/A
h/mv
rF
roegh

42. formula for energy of a spring mass when spring is at maximum displacement
(3/2)nRdeltaT
.5KA^2
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV

43. formula for Carnot efficiency
1/4wavelength
inelastic collision
((Th) -(Tl))/(Th)
0

44. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
h/mv
delta x = (Vo)t + .5at^2
Joules/Columb

45. radius of curvature of a charged particle as it enters a uniform magnetic field
no temp change
MC(deltaT)
m(v^2)/qvB
J= Ft

46. EMF of a battery having internal resistance R
(1/Do) + (1/Di) = (1/f)
V+IR
e=mc^2
Columbs/second

47. heat during a cyclic process (net heat)
deltaU -deltaW
net work = delta K
BLv
inelastic collision

48. heat required to melt a substance
(V^2)/R
M(Lf)
(I^2)RT
AV=(A2)(V2)

49. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
2nt=mwavelength
constant pressure
(hc/wavelength)=h(Fo) +(Vs)

50. formula for period of a pendulum
elastic collision
perfectly inelastic collision
2Pi * sqrt(l/g)
Ed=V