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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 power with current and resistance
no force (right hand rule)
KI/r
FV
(I^2)R

2. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
(V^2)/r
net work = delta K
((Qin) -(Qout))/(Qin)

3. total capacitance of capacitors in series
Joules/Columb
no force (right hand rule)
1/((1/C)+(1/C)..........)
no heat flow

4. isobaric
qE
F/A
constant pressure
KQ/r

5. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(1/Do) + (1/Di) = (1/f)
KQ/r
(EMF)Rt/10
joules/second

6. energy of a photon if wavelength is known
m(v^2)/qvB
AV=(A2)(V2)
hc/wavelength
nSintheta=nsintheta

7. formula to find the gauge pressure at the bottom of a pool
Ed=V
inelastic collision
roegh
.5KA^2

8. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
V+IR
E/B
KI/r
VI

9. change in internal energy during a cyclic process
GM*M/(r^2)
Q=CV
Joules/Columb
0

10. magnification equation
.5KA^2
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)
(Di)/(Do) or (Hi)/(Ho)

11. natural frequency of a closed tube of length L
((Qin) -(Qout))/(Qin)
no force (right hand rule)
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)

12. isothermal
no temp change
joules/second
k|Q|/r^2
qV

13. the electric force between two objects of charge Q
K |q||Q|/r^2
KQ/r
h/wavelength
1/((1/C)+(1/C)..........)

14. first kinematic
1/2wavelength
.5mV^2 + .5KA^2
no heat flow
V = (Vo) + at

15. the units of current other than amps
L -LCostheta
(3/2)nRdeltaT
hc/wavelength
Columbs/second

16. formula for finding the magnetic field a distance r from a current carrying wire
inelastic collision
hc/wavelength
d/2
KI/r

17. formula for power with current and voltage
qrB/m
VI
qVB
dSintheta=mwavelength

18. snells law
qE
nSintheta=nsintheta
k|Q|/r^2
d/2

19. natural frequency of an open tube of length L
m(v^2)/qvB
0
1/2wavelength
(3/2)nRdeltaT

20. formula for impulse involving momentum
(Di)/(Do) or (Hi)/(Ho)
mV -m(Vo)
-KA
perfectly inelastic collision

21. type of collision where K is not conserved
delta x = (Vo)t + .5at^2
e=mc^2
.5CV^2 or .5 Q^2/C or .5QV
inelastic collision

22. formula for efficiency not using work out
(Di)/(Do) or (Hi)/(Ho)
KQ/r
1/2wavelength
((Qin) -(Qout))/(Qin)

23. lens/mirror equation
J= Ft
(EMF)Rt/10
(I^2)RT
(1/Do) + (1/Di) = (1/f)

24. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
h/wavelength
delta x = (Vo)t + .5at^2
deltaU -deltaW

25. force of frction on an incline
(EMF)Rt/10
V+IR
mV -m(Vo)
mgCostheta(mu)d

26. formula equating energy and mass
(I^2)R
perfectly inelastic collision
e=mc^2
qVB

27. formula for centripetal acceleration
((Qin) -(Qout))/(Qin)
M(Lf)
(V^2)/r
sqrt(3KT/m)

28. heat required to melt a substance
(No)(wavelength)=(Nn)(new wavelength)
(Wnet)/(Qin)
M(Lf)
V = (Vo) + at

29. forgotten power equation
V^2=(Vo)^2 +2a*change in x
.5KA^2
mgCostheta(mu)d
FV

30. 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
net work = delta K
1/2wavelength
pL/A

31. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
Columbs/second
1/((1/C)+(1/C)..........)
no force (right hand rule)
.5mV^2 + .5KA^2

32. formula relating voltage and electric field
joules/second
(Wnet)/(Qin)
Ed=V
frequency never changes for light problems

33. the units of power other than watts
h(Fo)
E/B
no temp change
joules/second

34. work energy theorum
.5CV^2 or .5 Q^2/C or .5QV
net work = delta K
.5mV^2 + .5KA^2
hc/wavelength

35. isometric
2nt=mwavelength
1/2wavelength
Columbs/second
constant volume

36. formula for finding magnetic flux
Q=CV
net work = delta K
BA
opposite motion

37. radius of curvature of a charged particle as it enters a uniform magnetic field
h/mv
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)
opposite motion

38. hooke's law force of a spring
mV -m(Vo)
AV=(A2)(V2)
M(Lf)
-KA

39. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
rF
((Th) -(Tl))/(Th)
1/2wavelength

40. formula for torque
constant volume
h/mv
(No)(wavelength)=(Nn)(new wavelength)
rF

41. formula for Carnot efficiency
no heat flow
((Th) -(Tl))/(Th)
BLv
no force (right hand rule)

42. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
h/mv
roegh
(V^2)/r

43. formula for change in internal energy in a cosnstat volume PV process
M(Lf)
(3/2)nRdeltaT
AV=(A2)(V2)
sqrt(3KT/m)

44. formula for finding the momentum of a photon
(Patm) + (Pgauge)
((Th) -(Tl))/(Th)
m(v^2)/qvB
h/wavelength

45. the force on a charge moving parallel to a magnetic field
mgCostheta(mu)d
BA
Q=CV
no force (right hand rule)

46. the force on a charge in an electric field
(V^2)/R
((Qin) -(Qout))/(Qin)
qE
deltaU -deltaW

47. force of friction
(Fn)(mu)
0
V = (Vo) + at
VI

48. heat during an isometric process
constant volume
(EMF)Rt/10
n(Cv)(deltaT)
KQ/r

49. formula for constructive interference in a diffraction grating
constant volume
joules/second
dSintheta=mwavelength
Q=CV

50. third kinematic
net work = delta K
(EMF)Rt/10
mgCostheta(mu)d
V^2=(Vo)^2 +2a*change in x