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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. adibatic
hc/wavelength
n(Cv)(deltaT)
pL/A
no heat flow

2. formula for finding the work function of a metal if the cutoff frequency is known
-KA
h(Fo)
Joules/Columb
(hc/wavelength)=h(Fo) +(Vs)

3. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(EMF)Rt/10
qV
no heat flow
BLv

4. type of collision where objects stick togerther
d/2
(I^2)R
2nt=mwavelength
perfectly inelastic collision

5. formula for change in internal energy in a cosnstat volume PV process
((Qin) -(Qout))/(Qin)
(3/2)nRdeltaT
M(Lf)
(Wnet)/(Qin)

6. velocity of waves on a string if tension is known
sqrt(T/(m/))
(Wnet)/(Qin)
.5mV^2 + .5KA^2
BLv

7. formula for constructive interference in a diffraction grating
pL/A
M(Lf)
V^2=(Vo)^2 +2a*change in x
dSintheta=mwavelength

8. natural frequency of an open tube of length L
1/2wavelength
(Fn)(mu)
Ed=V
VI

9. energy stored in a capacitor
e=mc^2
M(Lf)
pL/A
.5CV^2 or .5 Q^2/C or .5QV

10. formula for impluse involving time
delta x = (Vo)t + .5at^2
nSintheta=nsintheta
(3/2)nRdeltaT
J= Ft

11. force of friction
Q=CV
AV=(A2)(V2)
(Fn)(mu)
(V^2)/r

12. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(I^2)R
.5CV^2 or .5 Q^2/C or .5QV
d/2

13. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
(N2)/(N1)
V = (Vo) + at
E/B

14. hooke's law force of a spring
2nt=mwavelength
perfectly inelastic collision
BLv
-KA

15. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
constant volume
roeVg
(I^2)RT
no temp change

16. second kinematic
(EMF)Rt/10
deltaU -deltaW
delta x = (Vo)t + .5at^2
AV=(A2)(V2)

17. the electric force between two objects of charge Q
K |q||Q|/r^2
.5CV^2 or .5 Q^2/C or .5QV
Q=CV
k|Q|/r^2

18. change in internal energy during a cyclic process
0
G M/((d/2)^2)
nSintheta=nsintheta
V = (Vo) + at

19. the units of current other than amps
KI/r
((Th) -(Tl))/(Th)
frequency never changes for light problems
Columbs/second

20. formula for torque
V^2=(Vo)^2 +2a*change in x
1/2wavelength
MC(deltaT)
rF

21. type of collision where K is not conserved
L -LCostheta
((Th) -(Tl))/(Th)
M(Lf)
inelastic collision

22. formula for efficiency of a heat engine using work out
VI
(Wnet)/(Qin)
no temp change
.5KA^2

23. force of gravity between two objects of mass m
(Patm) + (Pgauge)
GM*M/(r^2)
perfectly inelastic collision
E/B

24. velocity of a molecule of gas
sqrt(3KT/m)
F/A
(No)(wavelength)=(Nn)(new wavelength)
(Wnet)/(Qin)

25. EMF of a battery having internal resistance R
V+IR
elastic collision
k|Q|/r^2
GM*M/(r^2)

26. formula relating voltage and electric field
Ed=V
K |q||Q|/r^2
(I^2)R
(N2)/(N1)

27. isobaric
nSintheta=nsintheta
constant pressure
constant volume
inelastic collision

28. formula for efficiency not using work out
(3/2)nRdeltaT
joules/second
m(v^2)/qvB
((Qin) -(Qout))/(Qin)

29. formula for critical angle
E/B
n(Cv)(deltaT)
(Di)/(Do) or (Hi)/(Ho)
(N2)/(N1)

30. formula equating energy and mass
0
mgCostheta(mu)d
((Qin) -(Qout))/(Qin)
e=mc^2

31. equation for the first law of thermodynamics
d/2
deltaU = deltaQ + deltaW
joules/second
e=mc^2

32. electric field in a distance r from a charge
m(v^2)/qvB
k|Q|/r^2
frequency never changes for light problems
V^2=(Vo)^2 +2a*change in x

33. formula for power with current and resistance
V^2=(Vo)^2 +2a*change in x
(I^2)R
sqrt(T/(m/))
no heat flow

34. natural frequency of a closed tube of length L
(hc/wavelength)=h(Fo) +(Vs)
K |q||Q|/r^2
(3/2)nRdeltaT
1/4wavelength

35. formula for power with current and voltage
(Di)/(Do) or (Hi)/(Ho)
VI
((Qin) -(Qout))/(Qin)
(1/Do) + (1/Di) = (1/f)

36. the force on a charge moving parallel to a magnetic field
1/((1/C)+(1/C)..........)
mgCostheta(mu)d
no force (right hand rule)
((Th) -(Tl))/(Th)

37. the units of power other than watts
joules/second
(V^2)/r
Columbs/second
(I^2)R

38. formula for period of a pendulum
Ed=V
2Pi * sqrt(l/g)
MC(deltaT)
L -LCostheta

39. units for voltage other than volts
(Patm) + (Pgauge)
(EMF)Rt/10
KI/r
Joules/Columb

40. heat during an isometric process
net work = delta K
(No)(wavelength)=(Nn)(new wavelength)
n(Cv)(deltaT)
k|Q|/r^2

41. formula for buoyant force
(N2)/(N1)
roeVg
Joules/Columb
.5KA^2

42. electric potential a distance r from a charge
(N2)/(N1)
KQ/r
mV -m(Vo)
F/A

43. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
-KA
Q=CV
h/mv
(hc/wavelength)=h(Fo) +(Vs)

44. isothermal
2nt=mwavelength
K |q||Q|/r^2
no temp change
Q=CV

45. heat required to melt a substance
roeVg
deltaU = deltaQ + deltaW
(I^2)R
M(Lf)

46. focal length of a mirror with radius d
BLv
KI/r
deltaU -deltaW
d/2

47. resistance of a wire
(Patm) + (Pgauge)
KQ/r
G M/((d/2)^2)
pL/A

48. what direction is friction?
net work = delta K
(Wnet)/(Qin)
opposite motion
L -LCostheta

49. work energy theorum
V = (Vo) + at
net work = delta K
qE
1/((1/C)+(1/C)..........)

50. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
mV -m(Vo)
(EMF)Rt/10
(V^2)/r
E/B