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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. hooke's law force of a spring
.5KA^2
-KA
qV
frequency never changes for light problems

2. change in internal energy during a cyclic process
G M/((d/2)^2)
0
.5KA^2
VI

3. pressure
F/A
BLv
k|Q|/r^2
MC(deltaT)

4. formula for power with Voltage and resistance
1/4wavelength
(V^2)/R
Ed=V
(Wnet)/(Qin)

5. formula for constructive interference in a thin membrane with two phase changes
roeVg
perfectly inelastic collision
2nt=mwavelength
L -LCostheta

6. formula for change in internal energy in a cosnstat volume PV process
roegh
.5CV^2 or .5 Q^2/C or .5QV
(1/Do) + (1/Di) = (1/f)
(3/2)nRdeltaT

7. voltage induced in a rod moving through a uniform magnetic field
BLv
BA
(1/Do) + (1/Di) = (1/f)
E/B

8. total capacitance of capacitors in series
sqrt(T/(m/))
F/A
1/((1/C)+(1/C)..........)
(hc/wavelength)=h(Fo) +(Vs)

9. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
constant pressure
(1/Do) + (1/Di) = (1/f)
G M/((d/2)^2)
(Fn)(mu)

10. formula to find the gauge pressure at the bottom of a pool
((Th) -(Tl))/(Th)
0
constant volume
roegh

11. formula for the wavelength (debroglie wavelength) of a moving particle
1/4wavelength
mV -m(Vo)
h/mv
.5mV^2 + .5KA^2

12. the force on a charge in an electric field
V^2=(Vo)^2 +2a*change in x
qE
mgCostheta(mu)d
G M/((d/2)^2)

13. equation for the first law of thermodynamics
dSintheta=mwavelength
1/2wavelength
perfectly inelastic collision
deltaU = deltaQ + deltaW

14. 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
GM*M/(r^2)
KI/r
1/4wavelength

15. new wavelength of light as it enters a new substance
J= Ft
(No)(wavelength)=(Nn)(new wavelength)
qVB
constant pressure

16. type of collision where objects stick togerther
F/A
(I^2)R
perfectly inelastic collision
(V^2)/R

17. velocity of an electrion as it exitws from the hole
no force (right hand rule)
h(Fo)
frequency never changes for light problems
qrB/m

18. adibatic
1/4wavelength
Q=CV
joules/second
no heat flow

19. lens/mirror equation
(Di)/(Do) or (Hi)/(Ho)
inelastic collision
delta x = (Vo)t + .5at^2
(1/Do) + (1/Di) = (1/f)

20. magnification equation
(Di)/(Do) or (Hi)/(Ho)
G M/((d/2)^2)
(V^2)/R
hc/wavelength

21. energy stored in a capacitor
(I^2)RT
.5CV^2 or .5 Q^2/C or .5QV
KQ/r
perfectly inelastic collision

22. isobaric
constant pressure
((Qin) -(Qout))/(Qin)
1/4wavelength
KI/r

23. heat during a cyclic process (net heat)
.5CV^2 or .5 Q^2/C or .5QV
V+IR
deltaU -deltaW
n(Cv)(deltaT)

24. heat required to change temperature of a substance
Ed=V
MC(deltaT)
(Di)/(Do) or (Hi)/(Ho)
qVB

25. electric potential a distance r from a charge
qrB/m
V+IR
KQ/r
V = (Vo) + at

26. velocity of waves on a string if tension is known
sqrt(T/(m/))
deltaU = deltaQ + deltaW
E/B
no force (right hand rule)

27. isometric
constant volume
1/4wavelength
(V^2)/r
(N2)/(N1)

28. 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)
qV
M(Lf)
(hc/wavelength)=h(Fo) +(Vs)

29. formula for centripetal acceleration
E/B
(V^2)/r
qV
MC(deltaT)

30. formula for finding the work function of a metal if the cutoff frequency is known
h/wavelength
no force (right hand rule)
h(Fo)
Ed=V

31. electric field in a distance r from a charge
KI/r
k|Q|/r^2
V+IR
L -LCostheta

32. formula to find the absoluate pressure at the bottom of a pool
AV=(A2)(V2)
Joules/Columb
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)

33. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
M(Lf)
FV
m(v^2)/qvB

34. force of frction on an incline
mgCostheta(mu)d
(Di)/(Do) or (Hi)/(Ho)
2nt=mwavelength
V+IR

35. formula for finding the magnetic field a distance r from a current carrying wire
elastic collision
KI/r
qV
deltaU = deltaQ + deltaW

36. formula for torque
mV -m(Vo)
qE
K |q||Q|/r^2
rF

37. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
opposite motion
(hc/wavelength)=h(Fo) +(Vs)
(Wnet)/(Qin)
joules/second

38. what direction is friction?
(1/Do) + (1/Di) = (1/f)
KI/r
Q=CV
opposite motion

39. heat required to melt a substance
constant pressure
pL/A
no force (right hand rule)
M(Lf)

40. resistance of a wire
pL/A
qVB
2Pi * sqrt(l/g)
VI

41. formula for power with current and voltage
opposite motion
(EMF)Rt/10
VI
((Th) -(Tl))/(Th)

42. formula for power with current and resistance
(Fn)(mu)
(I^2)R
(1/Do) + (1/Di) = (1/f)
MC(deltaT)

43. formula for Carnot efficiency
F/A
((Th) -(Tl))/(Th)
V = (Vo) + at
(3/2)nRdeltaT

44. heat during an isometric process
qV
h/wavelength
n(Cv)(deltaT)
k|Q|/r^2

45. forgotten power equation
.5CV^2 or .5 Q^2/C or .5QV
FV
frequency never changes for light problems
k|Q|/r^2

46. second kinematic
MC(deltaT)
nSintheta=nsintheta
KQ/r
delta x = (Vo)t + .5at^2

47. the units of current other than amps
G M/((d/2)^2)
Columbs/second
(Patm) + (Pgauge)
MC(deltaT)

48. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
qrB/m
(EMF)Rt/10
delta x = (Vo)t + .5at^2
qV

49. type of collision where K is conserved
2nt=mwavelength
L -LCostheta
roeVg
elastic collision

50. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(1/Do) + (1/Di) = (1/f)
constant pressure
mgCostheta(mu)d