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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. type of collision where objects stick togerther
perfectly inelastic collision
constant pressure
e=mc^2
((Th) -(Tl))/(Th)

2. formula to find the absoluate pressure at the bottom of a pool
G M/((d/2)^2)
(Patm) + (Pgauge)
(V^2)/r
no heat flow

3. formula for power with current and voltage
VI
frequency never changes for light problems
dSintheta=mwavelength
qVB

4. velocity of an electrion as it exitws from the hole
no heat flow
(Patm) + (Pgauge)
net work = delta K
qrB/m

5. formula for finding the magnetic field a distance r from a current carrying wire
constant pressure
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
KI/r

6. radius of curvature of a charged particle as it enters a uniform magnetic field
Columbs/second
m(v^2)/qvB
(EMF)Rt/10
(3/2)nRdeltaT

7. third kinematic
opposite motion
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
.5KA^2

8. pressure
qV
F/A
deltaU = deltaQ + deltaW
((Th) -(Tl))/(Th)

9. type of collision where K is conserved
(I^2)R
Joules/Columb
elastic collision
e=mc^2

10. formula for constructive interference in a diffraction grating
Ed=V
G M/((d/2)^2)
dSintheta=mwavelength
FV

11. force of friction
E/B
(Fn)(mu)
no temp change
(No)(wavelength)=(Nn)(new wavelength)

12. natural frequency of an open tube of length L
sqrt(T/(m/))
J= Ft
(Di)/(Do) or (Hi)/(Ho)
1/2wavelength

13. adibatic
-KA
delta x = (Vo)t + .5at^2
mgCostheta(mu)d
no heat flow

14. formula for finding the work function of a metal if the cutoff frequency is known
qE
sqrt(T/(m/))
V+IR
h(Fo)

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
(I^2)RT
M(Lf)
G M/((d/2)^2)
mV -m(Vo)

16. the units of current other than amps
((Th) -(Tl))/(Th)
(Di)/(Do) or (Hi)/(Ho)
1/2wavelength
Columbs/second

17. natural frequency of a closed tube of length L
1/4wavelength
qrB/m
sqrt(T/(m/))
(Wnet)/(Qin)

18. formula for energy of a spring mass when spring is at maximum displacement
mgCostheta(mu)d
.5KA^2
(V^2)/R
h(Fo)

19. hooke's law force of a spring
constant pressure
-KA
1/2wavelength
((Qin) -(Qout))/(Qin)

20. equation of continuity
0
AV=(A2)(V2)
K |q||Q|/r^2
.5CV^2 or .5 Q^2/C or .5QV

21. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
KQ/r
qrB/m
perfectly inelastic collision
E/B

22. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
2Pi * sqrt(l/g)
(Di)/(Do) or (Hi)/(Ho)
deltaU = deltaQ + deltaW

23. magnification equation
k|Q|/r^2
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
(1/Do) + (1/Di) = (1/f)

24. formula for change in internal energy in a cosnstat volume PV process
perfectly inelastic collision
MC(deltaT)
constant pressure
(3/2)nRdeltaT

25. formula for power with Voltage and resistance
sqrt(T/(m/))
deltaU = deltaQ + deltaW
Q=CV
(V^2)/R

26. formula for impulse involving momentum
mV -m(Vo)
(EMF)Rt/10
(Wnet)/(Qin)
frequency never changes for light problems

27. velocity of waves on a string if tension is known
V+IR
sqrt(T/(m/))
G M/((d/2)^2)
constant pressure

28. total capacitance of capacitors in series
Joules/Columb
(I^2)R
n(Cv)(deltaT)
1/((1/C)+(1/C)..........)

29. formula equating energy and mass
e=mc^2
constant volume
(3/2)nRdeltaT
inelastic collision

30. isothermal
(I^2)RT
qE
G M/((d/2)^2)
no temp change

31. isobaric
BLv
delta x = (Vo)t + .5at^2
net work = delta K
constant pressure

32. energy of a photon if wavelength is known
(Di)/(Do) or (Hi)/(Ho)
MC(deltaT)
hc/wavelength
((Th) -(Tl))/(Th)

33. work energy theorum
(V^2)/r
L -LCostheta
pL/A
net work = delta K

34. formula for constructive interference in a thin membrane with two phase changes
L -LCostheta
2nt=mwavelength
dSintheta=mwavelength
FV

35. formula for efficiency not using work out
GM*M/(r^2)
KQ/r
opposite motion
((Qin) -(Qout))/(Qin)

36. the electric force between two objects of charge Q
F/A
(Fn)(mu)
deltaU -deltaW
K |q||Q|/r^2

37. force a charge in a Bfield
qrB/m
qVB
constant pressure
sqrt(T/(m/))

38. formula for efficiency of a heat engine using work out
deltaU -deltaW
qrB/m
(Wnet)/(Qin)
h/mv

39. equation for the first law of thermodynamics
mgCostheta(mu)d
deltaU = deltaQ + deltaW
G M/((d/2)^2)
inelastic collision

40. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
h/wavelength
d/2
GM*M/(r^2)

41. units for voltage other than volts
AV=(A2)(V2)
1/2wavelength
Joules/Columb
elastic collision

42. type of collision where K is not conserved
K |q||Q|/r^2
hc/wavelength
(I^2)RT
inelastic collision

43. heat during an isometric process
KQ/r
h/wavelength
n(Cv)(deltaT)
1/((1/C)+(1/C)..........)

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

45. energy stored in a capacitor
roegh
(1/Do) + (1/Di) = (1/f)
.5CV^2 or .5 Q^2/C or .5QV
(hc/wavelength)=h(Fo) +(Vs)

46. forgotten power equation
BLv
0
FV
opposite motion

47. heat required to change temperature of a substance
VI
MC(deltaT)
.5mV^2 + .5KA^2
deltaU = deltaQ + deltaW

48. velocity of a molecule of gas
1/2wavelength
(Patm) + (Pgauge)
sqrt(3KT/m)
((Th) -(Tl))/(Th)

49. second kinematic
deltaU -deltaW
roegh
L -LCostheta
delta x = (Vo)t + .5at^2

50. heat during a cyclic process (net heat)
qV
G M/((d/2)^2)
joules/second
deltaU -deltaW