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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. EMF of a battery having internal resistance R
V+IR
.5CV^2 or .5 Q^2/C or .5QV
constant volume
1/((1/C)+(1/C)..........)

2. natural frequency of an open tube of length L
perfectly inelastic collision
1/2wavelength
J= Ft
roeVg

3. formula for constructive interference in a thin membrane with two phase changes
BLv
roegh
2nt=mwavelength
pL/A

4. third kinematic
(V^2)/r
hc/wavelength
frequency never changes for light problems
V^2=(Vo)^2 +2a*change in x

5. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
h/mv
(I^2)RT
V = (Vo) + at
sqrt(T/(m/))

6. the units of power other than watts
dSintheta=mwavelength
V+IR
joules/second
((Th) -(Tl))/(Th)

7. heat required to melt a substance
qE
M(Lf)
delta x = (Vo)t + .5at^2
FV

8. new wavelength of light as it enters a new substance
k|Q|/r^2
(No)(wavelength)=(Nn)(new wavelength)
h(Fo)
1/4wavelength

9. formula for finding the momentum of a photon
h/wavelength
n(Cv)(deltaT)
mV -m(Vo)
deltaU = deltaQ + deltaW

10. equation of continuity
L -LCostheta
AV=(A2)(V2)
M(Lf)
(Di)/(Do) or (Hi)/(Ho)

11. formula for torque
n(Cv)(deltaT)
rF
1/((1/C)+(1/C)..........)
qVB

12. formula for buoyant force
pL/A
roeVg
GM*M/(r^2)
BLv

13. change in internal energy during a cyclic process
V^2=(Vo)^2 +2a*change in x
0
M(Lf)
Columbs/second

14. type of collision where objects stick togerther
roegh
perfectly inelastic collision
FV
hc/wavelength

15. heat during an isometric process
n(Cv)(deltaT)
m(v^2)/qvB
2nt=mwavelength
E/B

16. type of collision where K is not conserved
1/((1/C)+(1/C)..........)
joules/second
inelastic collision
h(Fo)

17. formula for critical angle
(N2)/(N1)
GM*M/(r^2)
2nt=mwavelength
m(v^2)/qvB

18. radius of curvature of a charged particle as it enters a uniform magnetic field
.5KA^2
(I^2)R
m(v^2)/qvB
V+IR

19. velocity of an electrion as it exitws from the hole
V+IR
deltaU = deltaQ + deltaW
qrB/m
J= Ft

20. formula for impulse involving momentum
-KA
L -LCostheta
inelastic collision
mV -m(Vo)

21. adibatic
no heat flow
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)
AV=(A2)(V2)

22. total capacitance of capacitors in series
M(Lf)
(N2)/(N1)
1/((1/C)+(1/C)..........)
roegh

23. formula relating voltage and electric field
Ed=V
Joules/Columb
n(Cv)(deltaT)
GM*M/(r^2)

24. work energy theorum
GM*M/(r^2)
net work = delta K
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV

25. velocity of a molecule of gas
dSintheta=mwavelength
roegh
h/mv
sqrt(3KT/m)

26. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
mV -m(Vo)
d/2
opposite motion
.5mV^2 + .5KA^2

27. formula for energy of a spring mass when spring is at maximum displacement
frequency never changes for light problems
hc/wavelength
sqrt(3KT/m)
.5KA^2

28. formula for change in internal energy in a cosnstat volume PV process
n(Cv)(deltaT)
constant pressure
k|Q|/r^2
(3/2)nRdeltaT

29. what direction is friction?
Joules/Columb
opposite motion
(Wnet)/(Qin)
.5KA^2

30. formula equating energy and mass
h/mv
.5mV^2 + .5KA^2
1/4wavelength
e=mc^2

31. electric potential a distance r from a charge
KQ/r
(N2)/(N1)
((Th) -(Tl))/(Th)
joules/second

32. the units of current other than amps
sqrt(T/(m/))
no force (right hand rule)
Columbs/second
.5KA^2

33. resistance of a wire
h/wavelength
sqrt(T/(m/))
no heat flow
pL/A

34. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(No)(wavelength)=(Nn)(new wavelength)
L -LCostheta
((Th) -(Tl))/(Th)
FV

35. voltage induced in a rod moving through a uniform magnetic field
qrB/m
BLv
1/((1/C)+(1/C)..........)
deltaU -deltaW

36. the force on a charge in an electric field
(I^2)RT
Q=CV
qE
.5mV^2 + .5KA^2

37. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
perfectly inelastic collision
qV
Joules/Columb

38. force of frction on an incline
e=mc^2
(1/Do) + (1/Di) = (1/f)
mgCostheta(mu)d
hc/wavelength

39. heat during a cyclic process (net heat)
hc/wavelength
M(Lf)
BLv
deltaU -deltaW

40. lens/mirror equation
GM*M/(r^2)
M(Lf)
(V^2)/R
(1/Do) + (1/Di) = (1/f)

41. hooke's law force of a spring
E/B
GM*M/(r^2)
-KA
KQ/r

42. heat required to change temperature of a substance
pL/A
2nt=mwavelength
MC(deltaT)
((Th) -(Tl))/(Th)

43. force of gravity between two objects of mass m
deltaU -deltaW
opposite motion
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)

44. formula for period of a pendulum
M(Lf)
dSintheta=mwavelength
BLv
2Pi * sqrt(l/g)

45. units for voltage other than volts
L -LCostheta
Joules/Columb
h(Fo)
AV=(A2)(V2)

46. formula for impluse involving time
J= Ft
.5mV^2 + .5KA^2
(1/Do) + (1/Di) = (1/f)
GM*M/(r^2)

47. formula for finding magnetic flux
GM*M/(r^2)
(1/Do) + (1/Di) = (1/f)
sqrt(3KT/m)
BA

48. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qrB/m
1/2wavelength
qV
(N2)/(N1)

49. formula for power with current and resistance
deltaU -deltaW
no temp change
Ed=V
(I^2)R

50. formula to find the absoluate pressure at the bottom of a pool
BLv
(Patm) + (Pgauge)
mV -m(Vo)
V = (Vo) + at