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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
KQ/r
m(v^2)/qvB
F/A
frequency never changes for light problems

2. isobaric
(Wnet)/(Qin)
constant pressure
h(Fo)
(Fn)(mu)

3. formula for torque
qrB/m
rF
Ed=V
G M/((d/2)^2)

4. third kinematic
no heat flow
qV
V^2=(Vo)^2 +2a*change in x
(Patm) + (Pgauge)

5. electric field in a distance r from a charge
(I^2)RT
k|Q|/r^2
roegh
0

6. resistance of a wire
KI/r
d/2
.5KA^2
pL/A

7. what direction is friction?
sqrt(3KT/m)
qVB
opposite motion
perfectly inelastic collision

8. formula for centripetal acceleration
(V^2)/r
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
no force (right hand rule)

9. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
(No)(wavelength)=(Nn)(new wavelength)
mV -m(Vo)
pL/A

10. formula for power with current and resistance
V^2=(Vo)^2 +2a*change in x
h(Fo)
net work = delta K
(I^2)R

11. work energy theorum
G M/((d/2)^2)
dSintheta=mwavelength
net work = delta K
n(Cv)(deltaT)

12. formula for power with current and voltage
mV -m(Vo)
constant volume
VI
2nt=mwavelength

13. type of collision where K is conserved
perfectly inelastic collision
elastic collision
qrB/m
VI

14. formula to find the gauge pressure at the bottom of a pool
roegh
BLv
nSintheta=nsintheta
V = (Vo) + at

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
F/A
e=mc^2
nSintheta=nsintheta

16. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
1/((1/C)+(1/C)..........)
FV
qV
opposite motion

17. voltage induced in a rod moving through a uniform magnetic field
qrB/m
joules/second
MC(deltaT)
BLv

18. the force on a charge in an electric field
qE
G M/((d/2)^2)
(No)(wavelength)=(Nn)(new wavelength)
joules/second

19. hooke's law force of a spring
1/4wavelength
no heat flow
-KA
h(Fo)

20. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
net work = delta K
Ed=V
E/B
(3/2)nRdeltaT

21. the units of power other than watts
J= Ft
1/((1/C)+(1/C)..........)
k|Q|/r^2
joules/second

22. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
.5CV^2 or .5 Q^2/C or .5QV
2Pi * sqrt(l/g)
rF

23. forgotten power equation
FV
.5CV^2 or .5 Q^2/C or .5QV
nSintheta=nsintheta
-KA

24. formula for finding magnetic flux
(No)(wavelength)=(Nn)(new wavelength)
BA
opposite motion
frequency never changes for light problems

25. electric potential a distance r from a charge
KQ/r
.5mV^2 + .5KA^2
n(Cv)(deltaT)
rF

26. formula for finding the work function of a metal if the cutoff frequency is known
constant volume
(1/Do) + (1/Di) = (1/f)
h(Fo)
frequency never changes for light problems

27. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
BA
(EMF)Rt/10
-KA

28. formula for power with Voltage and resistance
(V^2)/R
KI/r
mV -m(Vo)
frequency never changes for light problems

29. formula for change in internal energy in a cosnstat volume PV process
Joules/Columb
2nt=mwavelength
V+IR
(3/2)nRdeltaT

30. the force on a charge moving parallel to a magnetic field
.5mV^2 + .5KA^2
(hc/wavelength)=h(Fo) +(Vs)
no force (right hand rule)
h(Fo)

31. heat required to melt a substance
(Di)/(Do) or (Hi)/(Ho)
e=mc^2
(V^2)/r
M(Lf)

32. adibatic
K |q||Q|/r^2
Columbs/second
no heat flow
elastic collision

33. change in internal energy during a cyclic process
Ed=V
0
(V^2)/r
opposite motion

34. the electric force between two objects of charge Q
frequency never changes for light problems
roegh
h/mv
K |q||Q|/r^2

35. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
G M/((d/2)^2)
1/((1/C)+(1/C)..........)
dSintheta=mwavelength
(hc/wavelength)=h(Fo) +(Vs)

36. velocity of waves on a string if tension is known
nSintheta=nsintheta
1/2wavelength
delta x = (Vo)t + .5at^2
sqrt(T/(m/))

37. energy of a photon if wavelength is known
-KA
(Wnet)/(Qin)
(I^2)RT
hc/wavelength

38. formula for impulse involving momentum
(I^2)RT
mV -m(Vo)
qV
(Wnet)/(Qin)

39. total capacitance of capacitors in series
Q=CV
(I^2)RT
mV -m(Vo)
1/((1/C)+(1/C)..........)

40. new frequency of light as it enters a new substance
KQ/r
frequency never changes for light problems
Joules/Columb
(I^2)R

41. formula for period of a pendulum
no temp change
h/mv
inelastic collision
2Pi * sqrt(l/g)

42. equation for the first law of thermodynamics
h/mv
net work = delta K
deltaU = deltaQ + deltaW
nSintheta=nsintheta

43. EMF of a battery having internal resistance R
(V^2)/r
V+IR
no force (right hand rule)
M(Lf)

44. focal length of a mirror with radius d
(Patm) + (Pgauge)
d/2
FV
(No)(wavelength)=(Nn)(new wavelength)

45. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
pL/A
1/2wavelength
Q=CV
G M/((d/2)^2)

46. force of gravity between two objects of mass m
V^2=(Vo)^2 +2a*change in x
(V^2)/r
BA
GM*M/(r^2)

47. second kinematic
delta x = (Vo)t + .5at^2
hc/wavelength
MC(deltaT)
L -LCostheta

48. pressure
Ed=V
F/A
mV -m(Vo)
2nt=mwavelength

49. force of friction
(Fn)(mu)
h(Fo)
MC(deltaT)
d/2

50. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(Wnet)/(Qin)
delta x = (Vo)t + .5at^2
(EMF)Rt/10
k|Q|/r^2