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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. formula for height of the block (at the start of a pendulum string) in terms of theta and L
GM*M/(r^2)
L -LCostheta
qE
(hc/wavelength)=h(Fo) +(Vs)

2. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
-KA
e=mc^2
AV=(A2)(V2)

3. formula for torque
G M/((d/2)^2)
M(Lf)
L -LCostheta
rF

4. change in internal energy during a cyclic process
0
GM*M/(r^2)
Q=CV
.5mV^2 + .5KA^2

5. snells law
BLv
GM*M/(r^2)
net work = delta K
nSintheta=nsintheta

6. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
mgCostheta(mu)d
joules/second
E/B
Joules/Columb

7. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
n(Cv)(deltaT)
2Pi * sqrt(l/g)
h/wavelength

8. type of collision where K is not conserved
e=mc^2
Ed=V
inelastic collision
2nt=mwavelength

9. heat required to change temperature of a substance
nSintheta=nsintheta
((Qin) -(Qout))/(Qin)
sqrt(T/(m/))
MC(deltaT)

10. force of frction on an incline
(V^2)/R
BLv
1/((1/C)+(1/C)..........)
mgCostheta(mu)d

11. formula for constructive interference in a diffraction grating
mgCostheta(mu)d
dSintheta=mwavelength
d/2
0

12. resistance of a wire
E/B
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
pL/A

13. work energy theorum
constant volume
no force (right hand rule)
k|Q|/r^2
net work = delta K

14. formula for power with Voltage and resistance
qE
(EMF)Rt/10
(V^2)/R
inelastic collision

15. third kinematic
V^2=(Vo)^2 +2a*change in x
(Wnet)/(Qin)
F/A
G M/((d/2)^2)

16. heat during a cyclic process (net heat)
(No)(wavelength)=(Nn)(new wavelength)
elastic collision
deltaU -deltaW
2nt=mwavelength

17. heat required to melt a substance
net work = delta K
constant volume
Ed=V
M(Lf)

18. electric field in a distance r from a charge
k|Q|/r^2
0
L -LCostheta
1/((1/C)+(1/C)..........)

19. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
V^2=(Vo)^2 +2a*change in x
roeVg
qV
(V^2)/r

20. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(Fn)(mu)
KI/r
Q=CV

21. the force on a charge in an electric field
qE
mV -m(Vo)
.5mV^2 + .5KA^2
perfectly inelastic collision

22. the electric force between two objects of charge Q
(I^2)R
K |q||Q|/r^2
F/A
1/2wavelength

23. force of friction
(Fn)(mu)
(3/2)nRdeltaT
(V^2)/R
BA

24. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
1/2wavelength
MC(deltaT)
KI/r

25. total capacitance of capacitors in series
V^2=(Vo)^2 +2a*change in x
1/2wavelength
1/((1/C)+(1/C)..........)
1/4wavelength

26. electric potential a distance r from a charge
dSintheta=mwavelength
KQ/r
qE
constant pressure

27. formula for power with current and voltage
.5mV^2 + .5KA^2
(Patm) + (Pgauge)
VI
qrB/m

28. formula for period of a pendulum
V = (Vo) + at
2Pi * sqrt(l/g)
mgCostheta(mu)d
qE

29. magnification equation
delta x = (Vo)t + .5at^2
.5KA^2
(Wnet)/(Qin)
(Di)/(Do) or (Hi)/(Ho)

30. type of collision where objects stick togerther
perfectly inelastic collision
V+IR
1/2wavelength
E/B

31. natural frequency of a closed tube of length L
(I^2)R
0
1/4wavelength
1/((1/C)+(1/C)..........)

32. formula to find the gauge pressure at the bottom of a pool
(3/2)nRdeltaT
roegh
2nt=mwavelength
1/2wavelength

33. formula equating energy and mass
e=mc^2
inelastic collision
nSintheta=nsintheta
h/wavelength

34. pressure
rF
1/4wavelength
M(Lf)
F/A

35. type of collision where K is conserved
G M/((d/2)^2)
(Wnet)/(Qin)
elastic collision
KQ/r

36. formula for finding the work function of a metal if the cutoff frequency is known
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta
h(Fo)
constant volume

37. formula for charge stored in a capciator
BA
Q=CV
mgCostheta(mu)d
qE

38. isobaric
F/A
constant pressure
V^2=(Vo)^2 +2a*change in x
AV=(A2)(V2)

39. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
qE
n(Cv)(deltaT)
delta x = (Vo)t + .5at^2

40. the units of power other than watts
joules/second
frequency never changes for light problems
.5KA^2
GM*M/(r^2)

41. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
qV
constant pressure
BLv
.5mV^2 + .5KA^2

42. formula for change in internal energy in a cosnstat volume PV process
mgCostheta(mu)d
(3/2)nRdeltaT
h/wavelength
KI/r

43. new frequency of light as it enters a new substance
(V^2)/R
perfectly inelastic collision
frequency never changes for light problems
BA

44. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
AV=(A2)(V2)
FV
(N2)/(N1)

45. formula for finding magnetic flux
k|Q|/r^2
J= Ft
BA
E/B

46. adibatic
no heat flow
roeVg
.5mV^2 + .5KA^2
constant volume

47. formula for Carnot efficiency
((Th) -(Tl))/(Th)
BLv
delta x = (Vo)t + .5at^2
inelastic collision

48. formula for impulse involving momentum
0
mV -m(Vo)
BA
M(Lf)

49. formula for impluse involving time
0
2Pi * sqrt(l/g)
qrB/m
J= Ft

50. formula for critical angle
(N2)/(N1)
dSintheta=mwavelength
inelastic collision
net work = delta K