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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. radius of curvature of a charged particle as it enters a uniform magnetic field
2Pi * sqrt(l/g)
.5KA^2
h(Fo)
m(v^2)/qvB

2. isothermal
n(Cv)(deltaT)
(Di)/(Do) or (Hi)/(Ho)
(V^2)/R
no temp change

3. formula for height of the block (at the start of a pendulum string) in terms of theta and L
d/2
GM*M/(r^2)
L -LCostheta
h/wavelength

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

5. magnification equation
(Di)/(Do) or (Hi)/(Ho)
e=mc^2
MC(deltaT)
(Wnet)/(Qin)

6. heat during an isometric process
2nt=mwavelength
frequency never changes for light problems
((Qin) -(Qout))/(Qin)
n(Cv)(deltaT)

7. formula for Carnot efficiency
BA
(Fn)(mu)
-KA
((Th) -(Tl))/(Th)

8. focal length of a mirror with radius d
d/2
roegh
V+IR
no temp change

9. electric potential a distance r from a charge
KQ/r
(Fn)(mu)
n(Cv)(deltaT)
F/A

10. EMF of a battery having internal resistance R
V+IR
dSintheta=mwavelength
(Wnet)/(Qin)
V = (Vo) + at

11. formula for power with current and resistance
(I^2)R
.5KA^2
VI
nSintheta=nsintheta

12. formula for finding the work function of a metal if the cutoff frequency is known
J= Ft
((Qin) -(Qout))/(Qin)
deltaU = deltaQ + deltaW
h(Fo)

13. equation of continuity
1/4wavelength
AV=(A2)(V2)
VI
rF

14. heat required to melt a substance
(Wnet)/(Qin)
GM*M/(r^2)
h/wavelength
M(Lf)

15. electric field in a distance r from a charge
(Di)/(Do) or (Hi)/(Ho)
(Wnet)/(Qin)
h/mv
k|Q|/r^2

16. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
mgCostheta(mu)d
(EMF)Rt/10
BA
qV

17. isobaric
1/((1/C)+(1/C)..........)
.5mV^2 + .5KA^2
constant pressure
k|Q|/r^2

18. formula for efficiency not using work out
mV -m(Vo)
((Qin) -(Qout))/(Qin)
(EMF)Rt/10
h/mv

19. the force on a charge in an electric field
(hc/wavelength)=h(Fo) +(Vs)
joules/second
qE
(3/2)nRdeltaT

20. formula for change in internal energy in a cosnstat volume PV process
KQ/r
G M/((d/2)^2)
opposite motion
(3/2)nRdeltaT

21. type of collision where K is not conserved
m(v^2)/qvB
inelastic collision
V+IR
h(Fo)

22. the force on a charge moving parallel to a magnetic field
Ed=V
KQ/r
(V^2)/r
no force (right hand rule)

23. formula for critical angle
((Th) -(Tl))/(Th)
BLv
(N2)/(N1)
no temp change

24. energy stored in a capacitor
joules/second
deltaU = deltaQ + deltaW
.5CV^2 or .5 Q^2/C or .5QV
(hc/wavelength)=h(Fo) +(Vs)

25. force a charge in a Bfield
0
G M/((d/2)^2)
qVB
Ed=V

26. new wavelength of light as it enters a new substance
(I^2)R
(Fn)(mu)
L -LCostheta
(No)(wavelength)=(Nn)(new wavelength)

27. heat required to change temperature of a substance
mV -m(Vo)
(Di)/(Do) or (Hi)/(Ho)
deltaU -deltaW
MC(deltaT)

28. adibatic
h/wavelength
2nt=mwavelength
constant pressure
no heat flow

29. pressure
mgCostheta(mu)d
1/((1/C)+(1/C)..........)
FV
F/A

30. first kinematic
Ed=V
G M/((d/2)^2)
pL/A
V = (Vo) + at

31. total capacitance of capacitors in series
opposite motion
BA
1/((1/C)+(1/C)..........)
AV=(A2)(V2)

32. formula for period of a pendulum
(Wnet)/(Qin)
no heat flow
2Pi * sqrt(l/g)
inelastic collision

33. formula for impulse involving momentum
constant volume
mV -m(Vo)
n(Cv)(deltaT)
(N2)/(N1)

34. forgotten power equation
(I^2)RT
FV
M(Lf)
((Th) -(Tl))/(Th)

35. resistance of a wire
1/4wavelength
2Pi * sqrt(l/g)
((Th) -(Tl))/(Th)
pL/A

36. lens/mirror equation
k|Q|/r^2
F/A
(1/Do) + (1/Di) = (1/f)
(hc/wavelength)=h(Fo) +(Vs)

37. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
opposite motion
(Di)/(Do) or (Hi)/(Ho)
rF
(I^2)RT

38. type of collision where K is conserved
Ed=V
elastic collision
L -LCostheta
nSintheta=nsintheta

39. equation for the first law of thermodynamics
Joules/Columb
(Wnet)/(Qin)
deltaU = deltaQ + deltaW
roegh

40. third kinematic
Ed=V
m(v^2)/qvB
V^2=(Vo)^2 +2a*change in x
Joules/Columb

41. formula to find the gauge pressure at the bottom of a pool
AV=(A2)(V2)
roegh
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2

42. formula equating energy and mass
joules/second
e=mc^2
2Pi * sqrt(l/g)
mV -m(Vo)

43. formula for finding magnetic flux
BA
1/((1/C)+(1/C)..........)
F/A
MC(deltaT)

44. formula to find the absoluate pressure at the bottom of a pool
(Fn)(mu)
roeVg
deltaU = deltaQ + deltaW
(Patm) + (Pgauge)

45. formula for finding the magnetic field a distance r from a current carrying wire
Ed=V
KI/r
KQ/r
E/B

46. change in internal energy during a cyclic process
.5mV^2 + .5KA^2
e=mc^2
0
Joules/Columb

47. the electric force between two objects of charge Q
2nt=mwavelength
d/2
K |q||Q|/r^2
1/4wavelength

48. natural frequency of a closed tube of length L
G M/((d/2)^2)
roeVg
1/4wavelength
((Qin) -(Qout))/(Qin)

49. velocity of a molecule of gas
sqrt(3KT/m)
no heat flow
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta

50. units for voltage other than volts
elastic collision
0
Joules/Columb
(Patm) + (Pgauge)