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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. energy of a photon if wavelength is known
(EMF)Rt/10
hc/wavelength
mgCostheta(mu)d
V = (Vo) + at

2. hooke's law force of a spring
Ed=V
n(Cv)(deltaT)
-KA
mV -m(Vo)

3. forgotten power equation
(I^2)RT
(hc/wavelength)=h(Fo) +(Vs)
FV
n(Cv)(deltaT)

4. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
V^2=(Vo)^2 +2a*change in x
0
G M/((d/2)^2)
net work = delta K

5. the force on a charge moving parallel to a magnetic field
Joules/Columb
e=mc^2
rF
no force (right hand rule)

6. energy stored in a capacitor
Ed=V
(Wnet)/(Qin)
MC(deltaT)
.5CV^2 or .5 Q^2/C or .5QV

7. isobaric
Joules/Columb
no temp change
constant pressure
Ed=V

8. formula relating voltage and electric field
hc/wavelength
KQ/r
Ed=V
Joules/Columb

9. formula for the wavelength (debroglie wavelength) of a moving particle
dSintheta=mwavelength
h/mv
qE
opposite motion

10. formula for finding the magnetic field a distance r from a current carrying wire
roeVg
rF
V+IR
KI/r

11. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
F/A
.5mV^2 + .5KA^2
VI
(No)(wavelength)=(Nn)(new wavelength)

12. formula equating energy and mass
((Th) -(Tl))/(Th)
qVB
e=mc^2
frequency never changes for light problems

13. the units of current other than amps
Columbs/second
(Wnet)/(Qin)
(I^2)RT
hc/wavelength

14. what direction is friction?
MC(deltaT)
net work = delta K
h/mv
opposite motion

15. electric potential a distance r from a charge
KQ/r
G M/((d/2)^2)
mV -m(Vo)
2Pi * sqrt(l/g)

16. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
qV
net work = delta K
sqrt(3KT/m)
E/B

17. formula for finding the momentum of a photon
VI
(No)(wavelength)=(Nn)(new wavelength)
roeVg
h/wavelength

18. second kinematic
frequency never changes for light problems
delta x = (Vo)t + .5at^2
roeVg
Q=CV

19. formula for constructive interference in a diffraction grating
M(Lf)
dSintheta=mwavelength
mgCostheta(mu)d
2Pi * sqrt(l/g)

20. magnification equation
roeVg
(Di)/(Do) or (Hi)/(Ho)
J= Ft
(No)(wavelength)=(Nn)(new wavelength)

21. snells law
1/((1/C)+(1/C)..........)
VI
nSintheta=nsintheta
1/4wavelength

22. formula for period of a pendulum
roegh
2Pi * sqrt(l/g)
(No)(wavelength)=(Nn)(new wavelength)
rF

23. adibatic
2Pi * sqrt(l/g)
(Fn)(mu)
(Di)/(Do) or (Hi)/(Ho)
no heat flow

24. work energy theorum
net work = delta K
F/A
BA
constant pressure

25. formula for centripetal acceleration
pL/A
.5mV^2 + .5KA^2
(V^2)/r
V^2=(Vo)^2 +2a*change in x

26. formula for power with Voltage and resistance
(I^2)R
(Fn)(mu)
(V^2)/R
J= Ft

27. heat during an isometric process
n(Cv)(deltaT)
(V^2)/R
BA
.5KA^2

28. EMF of a battery having internal resistance R
(V^2)/R
mgCostheta(mu)d
F/A
V+IR

29. formula for charge stored in a capciator
.5mV^2 + .5KA^2
Q=CV
BA
constant pressure

30. heat required to change temperature of a substance
(hc/wavelength)=h(Fo) +(Vs)
MC(deltaT)
no heat flow
e=mc^2

31. units for voltage other than volts
V+IR
Joules/Columb
AV=(A2)(V2)
MC(deltaT)

32. velocity of a molecule of gas
.5mV^2 + .5KA^2
(I^2)R
sqrt(3KT/m)
qVB

33. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
inelastic collision
2nt=mwavelength
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)

34. formula for change in internal energy in a cosnstat volume PV process
GM*M/(r^2)
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT
no heat flow

35. formula for height of the block (at the start of a pendulum string) in terms of theta and L
-KA
L -LCostheta
mV -m(Vo)
GM*M/(r^2)

36. force of frction on an incline
KI/r
hc/wavelength
(EMF)Rt/10
mgCostheta(mu)d

37. force of gravity between two objects of mass m
GM*M/(r^2)
-KA
V^2=(Vo)^2 +2a*change in x
k|Q|/r^2

38. formula for buoyant force
deltaU -deltaW
k|Q|/r^2
roeVg
elastic collision

39. formula for finding the work function of a metal if the cutoff frequency is known
perfectly inelastic collision
hc/wavelength
h(Fo)
K |q||Q|/r^2

40. voltage induced in a rod moving through a uniform magnetic field
roeVg
h(Fo)
BLv
.5KA^2

41. radius of curvature of a charged particle as it enters a uniform magnetic field
(1/Do) + (1/Di) = (1/f)
(3/2)nRdeltaT
(Wnet)/(Qin)
m(v^2)/qvB

42. equation for the first law of thermodynamics
pL/A
1/4wavelength
frequency never changes for light problems
deltaU = deltaQ + deltaW

43. type of collision where K is not conserved
inelastic collision
dSintheta=mwavelength
2Pi * sqrt(l/g)
V^2=(Vo)^2 +2a*change in x

44. change in internal energy during a cyclic process
constant volume
0
opposite motion
(I^2)R

45. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
.5CV^2 or .5 Q^2/C or .5QV
sqrt(3KT/m)
2Pi * sqrt(l/g)

46. formula for impulse involving momentum
h/mv
KI/r
mV -m(Vo)
-KA

47. type of collision where objects stick togerther
inelastic collision
0
qV
perfectly inelastic collision

48. pressure
Q=CV
deltaU -deltaW
delta x = (Vo)t + .5at^2
F/A

49. formula for energy of a spring mass when spring is at maximum displacement
net work = delta K
.5KA^2
BLv
h/wavelength

50. electric field in a distance r from a charge
mV -m(Vo)
L -LCostheta
k|Q|/r^2
K |q||Q|/r^2