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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 for the wavelength (debroglie wavelength) of a moving particle
no heat flow
qV
h/mv
(No)(wavelength)=(Nn)(new wavelength)

2. snells law
hc/wavelength
AV=(A2)(V2)
nSintheta=nsintheta
no temp change

3. type of collision where K is not conserved
1/((1/C)+(1/C)..........)
(V^2)/r
inelastic collision
.5mV^2 + .5KA^2

4. formula for impluse involving time
h/mv
GM*M/(r^2)
Joules/Columb
J= Ft

5. velocity of a molecule of gas
rF
.5CV^2 or .5 Q^2/C or .5QV
sqrt(3KT/m)
Joules/Columb

6. force a charge in a Bfield
Joules/Columb
delta x = (Vo)t + .5at^2
Ed=V
qVB

7. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
rF
(V^2)/r
M(Lf)

8. magnification equation
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
qE
h/mv

9. resistance of a wire
(1/Do) + (1/Di) = (1/f)
0
pL/A
opposite motion

10. isobaric
FV
constant pressure
rF
(I^2)RT

11. natural frequency of a closed tube of length L
joules/second
2Pi * sqrt(l/g)
1/4wavelength
.5KA^2

12. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
qrB/m
G M/((d/2)^2)
E/B
h/mv

13. heat during a cyclic process (net heat)
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x
(V^2)/R
(Fn)(mu)

14. second kinematic
K |q||Q|/r^2
inelastic collision
delta x = (Vo)t + .5at^2
e=mc^2

15. hooke's law force of a spring
no force (right hand rule)
-KA
(Patm) + (Pgauge)
(1/Do) + (1/Di) = (1/f)

16. the electric force between two objects of charge Q
J= Ft
d/2
roeVg
K |q||Q|/r^2

17. formula for efficiency of a heat engine using work out
h/wavelength
V = (Vo) + at
M(Lf)
(Wnet)/(Qin)

18. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
sqrt(3KT/m)
Columbs/second
qV

19. heat during an isometric process
0
nSintheta=nsintheta
n(Cv)(deltaT)
V = (Vo) + at

20. units for voltage other than volts
Joules/Columb
M(Lf)
deltaU = deltaQ + deltaW
elastic collision

21. the units of power other than watts
no temp change
joules/second
roeVg
.5CV^2 or .5 Q^2/C or .5QV

22. energy stored in a capacitor
Q=CV
.5CV^2 or .5 Q^2/C or .5QV
frequency never changes for light problems
constant volume

23. focal length of a mirror with radius d
V^2=(Vo)^2 +2a*change in x
d/2
V = (Vo) + at
(hc/wavelength)=h(Fo) +(Vs)

24. formula for constructive interference in a diffraction grating
.5mV^2 + .5KA^2
V = (Vo) + at
e=mc^2
dSintheta=mwavelength

25. voltage induced in a rod moving through a uniform magnetic field
E/B
Joules/Columb
KI/r
BLv

26. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
Columbs/second
deltaU = deltaQ + deltaW
Q=CV

27. forgotten power equation
FV
sqrt(3KT/m)
Columbs/second
perfectly inelastic collision

28. heat required to melt a substance
.5KA^2
M(Lf)
d/2
1/4wavelength

29. equation of continuity
qVB
rF
AV=(A2)(V2)
J= Ft

30. radius of curvature of a charged particle as it enters a uniform magnetic field
h/wavelength
m(v^2)/qvB
frequency never changes for light problems
mV -m(Vo)

31. adibatic
no heat flow
opposite motion
e=mc^2
constant volume

32. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
joules/second
dSintheta=mwavelength
(No)(wavelength)=(Nn)(new wavelength)

33. formula for impulse involving momentum
(V^2)/R
2Pi * sqrt(l/g)
mV -m(Vo)
(Wnet)/(Qin)

34. pressure
V^2=(Vo)^2 +2a*change in x
roegh
1/4wavelength
F/A

35. formula relating voltage and electric field
Ed=V
elastic collision
opposite motion
roegh

36. formula for power with current and resistance
(I^2)R
no heat flow
nSintheta=nsintheta
K |q||Q|/r^2

37. formula for finding the magnetic field a distance r from a current carrying wire
opposite motion
.5mV^2 + .5KA^2
KI/r
nSintheta=nsintheta

38. heat required to change temperature of a substance
pL/A
h/mv
MC(deltaT)
d/2

39. new wavelength of light as it enters a new substance
roegh
((Qin) -(Qout))/(Qin)
(No)(wavelength)=(Nn)(new wavelength)
V = (Vo) + at

40. force of gravity between two objects of mass m
h/wavelength
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)
1/4wavelength

41. change in internal energy during a cyclic process
0
FV
dSintheta=mwavelength
1/4wavelength

42. first kinematic
.5KA^2
roegh
V = (Vo) + at
n(Cv)(deltaT)

43. formula for finding magnetic flux
K |q||Q|/r^2
h(Fo)
BA
n(Cv)(deltaT)

44. formula for efficiency not using work out
L -LCostheta
(Fn)(mu)
0
((Qin) -(Qout))/(Qin)

45. formula for charge stored in a capciator
Q=CV
sqrt(T/(m/))
qE
(I^2)R

46. formula for height of the block (at the start of a pendulum string) in terms of theta and L
K |q||Q|/r^2
V = (Vo) + at
L -LCostheta
mV -m(Vo)

47. formula for finding the momentum of a photon
F/A
1/2wavelength
MC(deltaT)
h/wavelength

48. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
1/4wavelength
MC(deltaT)
net work = delta K

49. formula for change in internal energy in a cosnstat volume PV process
no force (right hand rule)
K |q||Q|/r^2
(3/2)nRdeltaT
VI

50. force of friction
sqrt(T/(m/))
(Fn)(mu)
elastic collision
FV