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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. electric potential a distance r from a charge
m(v^2)/qvB
(Patm) + (Pgauge)
KQ/r
G M/((d/2)^2)

2. type of collision where objects stick togerther
perfectly inelastic collision
0
(No)(wavelength)=(Nn)(new wavelength)
deltaU -deltaW

3. the electric force between two objects of charge Q
Ed=V
(Di)/(Do) or (Hi)/(Ho)
dSintheta=mwavelength
K |q||Q|/r^2

4. formula for buoyant force
V = (Vo) + at
1/((1/C)+(1/C)..........)
elastic collision
roeVg

5. formula for change in internal energy in a cosnstat volume PV process
1/2wavelength
(3/2)nRdeltaT
((Qin) -(Qout))/(Qin)
(EMF)Rt/10

6. formula for power with current and resistance
hc/wavelength
VI
(I^2)R
.5KA^2

7. natural frequency of an open tube of length L
h/mv
1/2wavelength
nSintheta=nsintheta
elastic collision

8. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
E/B
((Th) -(Tl))/(Th)
.5mV^2 + .5KA^2
(Di)/(Do) or (Hi)/(Ho)

9. heat required to change temperature of a substance
MC(deltaT)
2nt=mwavelength
(V^2)/R
KI/r

10. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
joules/second
nSintheta=nsintheta
(I^2)R

11. energy of a photon if wavelength is known
constant pressure
n(Cv)(deltaT)
hc/wavelength
opposite motion

12. heat during an isometric process
Q=CV
n(Cv)(deltaT)
no heat flow
sqrt(3KT/m)

13. formula for period of a pendulum
2Pi * sqrt(l/g)
.5CV^2 or .5 Q^2/C or .5QV
Columbs/second
constant pressure

14. force of gravity between two objects of mass m
K |q||Q|/r^2
KI/r
GM*M/(r^2)
G M/((d/2)^2)

15. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
inelastic collision
.5CV^2 or .5 Q^2/C or .5QV
deltaU -deltaW

16. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
roegh
E/B
h(Fo)
perfectly inelastic collision

17. units for voltage other than volts
k|Q|/r^2
V = (Vo) + at
Joules/Columb
(Di)/(Do) or (Hi)/(Ho)

18. isometric
pL/A
Joules/Columb
constant volume
(Patm) + (Pgauge)

19. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
hc/wavelength
BLv
(1/Do) + (1/Di) = (1/f)

20. the units of power other than watts
0
Joules/Columb
joules/second
deltaU -deltaW

21. formula relating voltage and electric field
BLv
Ed=V
qE
dSintheta=mwavelength

22. third kinematic
V^2=(Vo)^2 +2a*change in x
deltaU -deltaW
2Pi * sqrt(l/g)
qVB

23. equation for the first law of thermodynamics
m(v^2)/qvB
qV
d/2
deltaU = deltaQ + deltaW

24. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
BLv
roegh
(Wnet)/(Qin)

25. adibatic
deltaU -deltaW
rF
no heat flow
no force (right hand rule)

26. formula for height of the block (at the start of a pendulum string) in terms of theta and L
V^2=(Vo)^2 +2a*change in x
2nt=mwavelength
n(Cv)(deltaT)
L -LCostheta

27. formula to find the absoluate pressure at the bottom of a pool
2Pi * sqrt(l/g)
BA
.5mV^2 + .5KA^2
(Patm) + (Pgauge)

28. formula equating energy and mass
-KA
nSintheta=nsintheta
sqrt(T/(m/))
e=mc^2

29. 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
V^2=(Vo)^2 +2a*change in x
L -LCostheta
FV

30. formula for finding the momentum of a photon
h/wavelength
delta x = (Vo)t + .5at^2
perfectly inelastic collision
VI

31. first kinematic
L -LCostheta
V = (Vo) + at
E/B
Joules/Columb

32. formula for efficiency of a heat engine using work out
(Di)/(Do) or (Hi)/(Ho)
(Wnet)/(Qin)
BLv
rF

33. formula for impluse involving time
KI/r
d/2
(Di)/(Do) or (Hi)/(Ho)
J= Ft

34. formula for finding the magnetic field a distance r from a current carrying wire
k|Q|/r^2
KI/r
qE
h/mv

35. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(No)(wavelength)=(Nn)(new wavelength)
((Qin) -(Qout))/(Qin)
(Patm) + (Pgauge)

36. EMF of a battery having internal resistance R
m(v^2)/qvB
V+IR
Columbs/second
KI/r

37. lens/mirror equation
Joules/Columb
Q=CV
(1/Do) + (1/Di) = (1/f)
pL/A

38. force of friction
(Fn)(mu)
n(Cv)(deltaT)
KQ/r
BLv

39. velocity of an electrion as it exitws from the hole
qrB/m
sqrt(T/(m/))
1/4wavelength
.5KA^2

40. type of collision where K is conserved
AV=(A2)(V2)
(N2)/(N1)
elastic collision
J= Ft

41. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(N2)/(N1)
(Fn)(mu)
-KA
qV

42. formula for torque
qV
rF
d/2
n(Cv)(deltaT)

43. isobaric
e=mc^2
constant pressure
h/wavelength
M(Lf)

44. formula to find the gauge pressure at the bottom of a pool
opposite motion
roegh
V+IR
0

45. force a charge in a Bfield
.5mV^2 + .5KA^2
1/((1/C)+(1/C)..........)
qVB
elastic collision

46. total capacitance of capacitors in series
Q=CV
e=mc^2
1/((1/C)+(1/C)..........)
Joules/Columb

47. formula for finding magnetic flux
m(v^2)/qvB
inelastic collision
BA
((Qin) -(Qout))/(Qin)

48. formula for finding the work function of a metal if the cutoff frequency is known
E/B
h(Fo)
MC(deltaT)
Joules/Columb

49. formula for constructive interference in a thin membrane with two phase changes
joules/second
perfectly inelastic collision
h/wavelength
2nt=mwavelength

50. formula for power with current and voltage
((Qin) -(Qout))/(Qin)
(Patm) + (Pgauge)
VI
h/wavelength