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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. formula for power with Voltage and resistance
(V^2)/R
sqrt(T/(m/))
qrB/m
constant volume

2. type of collision where K is not conserved
AV=(A2)(V2)
qV
mV -m(Vo)
inelastic collision

3. formula for constructive interference in a thin membrane with two phase changes
mV -m(Vo)
2nt=mwavelength
sqrt(3KT/m)
qrB/m

4. velocity of waves on a string if tension is known
Joules/Columb
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
mgCostheta(mu)d

5. isometric
e=mc^2
qrB/m
constant volume
V = (Vo) + at

6. EMF of a battery having internal resistance R
joules/second
e=mc^2
roegh
V+IR

7. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
joules/second
KQ/r
.5mV^2 + .5KA^2
(I^2)R

8. hooke's law force of a spring
(1/Do) + (1/Di) = (1/f)
-KA
(Di)/(Do) or (Hi)/(Ho)
1/4wavelength

9. electric field in a distance r from a charge
dSintheta=mwavelength
1/4wavelength
V = (Vo) + at
k|Q|/r^2

10. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
2Pi * sqrt(l/g)
(EMF)Rt/10
perfectly inelastic collision
(Patm) + (Pgauge)

11. formula for power with current and resistance
joules/second
F/A
elastic collision
(I^2)R

12. formula for the wavelength (debroglie wavelength) of a moving particle
no force (right hand rule)
inelastic collision
h/mv
FV

13. formula for finding the work function of a metal if the cutoff frequency is known
(1/Do) + (1/Di) = (1/f)
nSintheta=nsintheta
h(Fo)
.5mV^2 + .5KA^2

14. lens/mirror equation
BA
(No)(wavelength)=(Nn)(new wavelength)
(1/Do) + (1/Di) = (1/f)
frequency never changes for light problems

15. formula for energy of a spring mass when spring is at maximum displacement
MC(deltaT)
.5KA^2
E/B
(N2)/(N1)

16. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
(3/2)nRdeltaT
GM*M/(r^2)
roeVg

17. electric potential a distance r from a charge
(N2)/(N1)
KQ/r
elastic collision
K |q||Q|/r^2

18. heat required to change temperature of a substance
MC(deltaT)
E/B
AV=(A2)(V2)
(EMF)Rt/10

19. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
M(Lf)
sqrt(3KT/m)
Columbs/second

20. formula for change in internal energy in a cosnstat volume PV process
(I^2)RT
GM*M/(r^2)
.5CV^2 or .5 Q^2/C or .5QV
(3/2)nRdeltaT

21. formula for efficiency of a heat engine using work out
V^2=(Vo)^2 +2a*change in x
KQ/r
(I^2)R
(Wnet)/(Qin)

22. energy of a photon if wavelength is known
hc/wavelength
nSintheta=nsintheta
n(Cv)(deltaT)
e=mc^2

23. work energy theorum
M(Lf)
1/4wavelength
net work = delta K
VI

24. radius of curvature of a charged particle as it enters a uniform magnetic field
KQ/r
mgCostheta(mu)d
no temp change
m(v^2)/qvB

25. formula for torque
G M/((d/2)^2)
rF
.5KA^2
J= Ft

26. velocity of an electrion as it exitws from the hole
(hc/wavelength)=h(Fo) +(Vs)
perfectly inelastic collision
qrB/m
rF

27. first kinematic
V = (Vo) + at
((Th) -(Tl))/(Th)
.5KA^2
Q=CV

28. type of collision where objects stick togerther
qVB
0
joules/second
perfectly inelastic collision

29. force of friction
0
sqrt(3KT/m)
(Fn)(mu)
(3/2)nRdeltaT

30. the force on a charge in an electric field
qE
Joules/Columb
G M/((d/2)^2)
1/((1/C)+(1/C)..........)

31. the units of power other than watts
roegh
joules/second
dSintheta=mwavelength
no temp change

32. formula for finding magnetic flux
BA
(N2)/(N1)
delta x = (Vo)t + .5at^2
hc/wavelength

33. formula for buoyant force
(I^2)R
BLv
no heat flow
roeVg

34. snells law
nSintheta=nsintheta
J= Ft
V^2=(Vo)^2 +2a*change in x
d/2

35. isothermal
constant pressure
L -LCostheta
no temp change
k|Q|/r^2

36. natural frequency of a closed tube of length L
V = (Vo) + at
1/4wavelength
opposite motion
(1/Do) + (1/Di) = (1/f)

37. adibatic
1/4wavelength
qV
no heat flow
Q=CV

38. the units of current other than amps
1/((1/C)+(1/C)..........)
Columbs/second
nSintheta=nsintheta
(V^2)/r

39. formula for constructive interference in a diffraction grating
(EMF)Rt/10
.5mV^2 + .5KA^2
no heat flow
dSintheta=mwavelength

40. formula for critical angle
h/mv
joules/second
hc/wavelength
(N2)/(N1)

41. energy stored in a capacitor
(Patm) + (Pgauge)
.5CV^2 or .5 Q^2/C or .5QV
k|Q|/r^2
1/((1/C)+(1/C)..........)

42. 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
roeVg
k|Q|/r^2
mV -m(Vo)

43. heat during a cyclic process (net heat)
sqrt(3KT/m)
((Th) -(Tl))/(Th)
deltaU -deltaW
(I^2)R

44. equation for the first law of thermodynamics
0
2nt=mwavelength
G M/((d/2)^2)
deltaU = deltaQ + deltaW

45. formula for impluse involving time
(I^2)RT
J= Ft
h/mv
(V^2)/R

46. force a charge in a Bfield
h/mv
(V^2)/R
k|Q|/r^2
qVB

47. second kinematic
delta x = (Vo)t + .5at^2
Columbs/second
no heat flow
qE

48. formula for centripetal acceleration
K |q||Q|/r^2
(Fn)(mu)
(V^2)/r
hc/wavelength

49. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
joules/second
V = (Vo) + at
(hc/wavelength)=h(Fo) +(Vs)
2nt=mwavelength

50. formula for impulse involving momentum
Q=CV
((Th) -(Tl))/(Th)
mV -m(Vo)
(Di)/(Do) or (Hi)/(Ho)