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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 centripetal acceleration
(V^2)/r
dSintheta=mwavelength
V^2=(Vo)^2 +2a*change in x
e=mc^2

2. formula for charge stored in a capciator
0
Q=CV
qrB/m
sqrt(3KT/m)

3. new frequency of light as it enters a new substance
qE
frequency never changes for light problems
mV -m(Vo)
KI/r

4. third kinematic
V^2=(Vo)^2 +2a*change in x
BA
(Patm) + (Pgauge)
qVB

5. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
K |q||Q|/r^2
elastic collision
L -LCostheta

6. formula relating voltage and electric field
Ed=V
.5KA^2
M(Lf)
Q=CV

7. formula for power with current and resistance
BLv
elastic collision
(I^2)R
.5mV^2 + .5KA^2

8. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
nSintheta=nsintheta
no force (right hand rule)
MC(deltaT)

9. change in internal energy during a cyclic process
deltaU = deltaQ + deltaW
2nt=mwavelength
0
V+IR

10. force a charge in a Bfield
Ed=V
qVB
.5mV^2 + .5KA^2
qE

11. resistance of a wire
BLv
L -LCostheta
(EMF)Rt/10
pL/A

12. velocity of waves on a string if tension is known
pL/A
sqrt(T/(m/))
.5KA^2
1/((1/C)+(1/C)..........)

13. formula for Carnot efficiency
rF
((Th) -(Tl))/(Th)
h/mv
FV

14. hooke's law force of a spring
roegh
-KA
hc/wavelength
d/2

15. units for voltage other than volts
constant pressure
Joules/Columb
1/4wavelength
VI

16. natural frequency of a closed tube of length L
opposite motion
h(Fo)
2nt=mwavelength
1/4wavelength

17. the units of current other than amps
mgCostheta(mu)d
Columbs/second
GM*M/(r^2)
(I^2)RT

18. formula for impluse involving time
J= Ft
deltaU -deltaW
(hc/wavelength)=h(Fo) +(Vs)
E/B

19. energy of a photon if wavelength is known
hc/wavelength
L -LCostheta
FV
GM*M/(r^2)

20. magnification equation
VI
1/((1/C)+(1/C)..........)
V = (Vo) + at
(Di)/(Do) or (Hi)/(Ho)

21. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
((Qin) -(Qout))/(Qin)
(3/2)nRdeltaT
(Fn)(mu)
(EMF)Rt/10

22. natural frequency of an open tube of length L
mV -m(Vo)
1/2wavelength
d/2
1/((1/C)+(1/C)..........)

23. type of collision where K is not conserved
VI
inelastic collision
1/2wavelength
2Pi * sqrt(l/g)

24. formula for finding the momentum of a photon
h/wavelength
BA
F/A
hc/wavelength

25. focal length of a mirror with radius d
FV
(Wnet)/(Qin)
qV
d/2

26. the electric force between two objects of charge Q
sqrt(T/(m/))
K |q||Q|/r^2
delta x = (Vo)t + .5at^2
no force (right hand rule)

27. the units of power other than watts
joules/second
deltaU -deltaW
Columbs/second
deltaU = deltaQ + deltaW

28. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
no temp change
KQ/r
((Th) -(Tl))/(Th)
G M/((d/2)^2)

29. formula for the wavelength (debroglie wavelength) of a moving particle
V+IR
constant volume
K |q||Q|/r^2
h/mv

30. formula for constructive interference in a thin membrane with two phase changes
h(Fo)
elastic collision
2nt=mwavelength
Ed=V

31. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
(Wnet)/(Qin)
mV -m(Vo)
h(Fo)

32. formula equating energy and mass
e=mc^2
(3/2)nRdeltaT
Q=CV
2Pi * sqrt(l/g)

33. voltage induced in a rod moving through a uniform magnetic field
((Qin) -(Qout))/(Qin)
BLv
.5CV^2 or .5 Q^2/C or .5QV
Joules/Columb

34. total capacitance of capacitors in series
BA
E/B
1/((1/C)+(1/C)..........)
no heat flow

35. formula for power with current and voltage
sqrt(T/(m/))
VI
-KA
(V^2)/R

36. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
roegh
(I^2)RT
h(Fo)

37. what direction is friction?
F/A
inelastic collision
FV
opposite motion

38. formula for finding the work function of a metal if the cutoff frequency is known
inelastic collision
perfectly inelastic collision
h(Fo)
.5mV^2 + .5KA^2

39. heat required to change temperature of a substance
MC(deltaT)
d/2
rF
qV

40. formula for critical angle
(N2)/(N1)
nSintheta=nsintheta
e=mc^2
AV=(A2)(V2)

41. snells law
nSintheta=nsintheta
.5KA^2
L -LCostheta
k|Q|/r^2

42. the force on a charge moving parallel to a magnetic field
.5KA^2
.5CV^2 or .5 Q^2/C or .5QV
(N2)/(N1)
no force (right hand rule)

43. isometric
constant volume
deltaU = deltaQ + deltaW
VI
Columbs/second

44. formula for finding the magnetic field a distance r from a current carrying wire
(I^2)RT
KI/r
MC(deltaT)
constant pressure

45. EMF of a battery having internal resistance R
k|Q|/r^2
K |q||Q|/r^2
V+IR
h(Fo)

46. second kinematic
qrB/m
delta x = (Vo)t + .5at^2
hc/wavelength
mgCostheta(mu)d

47. formula for efficiency of a heat engine using work out
Ed=V
constant pressure
1/4wavelength
(Wnet)/(Qin)

48. type of collision where objects stick togerther
qrB/m
-KA
no temp change
perfectly inelastic collision

49. adibatic
.5mV^2 + .5KA^2
((Qin) -(Qout))/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
no heat flow

50. equation of continuity
1/4wavelength
G M/((d/2)^2)
opposite motion
AV=(A2)(V2)