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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. new frequency of light as it enters a new substance
frequency never changes for light problems
BLv
e=mc^2
((Qin) -(Qout))/(Qin)

2. change in internal energy during a cyclic process
0
no force (right hand rule)
perfectly inelastic collision
KQ/r

3. formula for finding magnetic flux
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x
BA
V = (Vo) + at

4. the electric force between two objects of charge Q
J= Ft
dSintheta=mwavelength
perfectly inelastic collision
K |q||Q|/r^2

5. total capacitance of capacitors in series
V = (Vo) + at
Columbs/second
1/((1/C)+(1/C)..........)
M(Lf)

6. formula relating voltage and electric field
-KA
Ed=V
constant volume
sqrt(3KT/m)

7. energy of a photon if wavelength is known
E/B
n(Cv)(deltaT)
hc/wavelength
V = (Vo) + at

8. snells law
nSintheta=nsintheta
no temp change
roeVg
2nt=mwavelength

9. formula for energy of a spring mass when spring is at maximum displacement
G M/((d/2)^2)
V+IR
.5KA^2
no temp change

10. formula for efficiency of a heat engine using work out
no force (right hand rule)
(Wnet)/(Qin)
AV=(A2)(V2)
BLv

11. formula for period of a pendulum
qrB/m
2Pi * sqrt(l/g)
Columbs/second
no force (right hand rule)

12. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
KQ/r
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)

13. third kinematic
sqrt(3KT/m)
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x
KI/r

14. type of collision where objects stick togerther
perfectly inelastic collision
roeVg
mV -m(Vo)
roegh

15. forgotten power equation
1/2wavelength
KI/r
FV
2Pi * sqrt(l/g)

16. what direction is friction?
h/mv
opposite motion
h(Fo)
mV -m(Vo)

17. formula for charge stored in a capciator
V^2=(Vo)^2 +2a*change in x
Q=CV
(Wnet)/(Qin)
nSintheta=nsintheta

18. formula for finding the momentum of a photon
qV
h/wavelength
constant volume
perfectly inelastic collision

19. magnification equation
(I^2)R
qE
BLv
(Di)/(Do) or (Hi)/(Ho)

20. electric potential a distance r from a charge
(3/2)nRdeltaT
.5mV^2 + .5KA^2
F/A
KQ/r

21. force of friction
qV
(Fn)(mu)
.5KA^2
(hc/wavelength)=h(Fo) +(Vs)

22. formula to find the gauge pressure at the bottom of a pool
roegh
d/2
E/B
qVB

23. formula for impulse involving momentum
mV -m(Vo)
joules/second
deltaU -deltaW
E/B

24. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
V = (Vo) + at
Columbs/second
mgCostheta(mu)d

25. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
qVB
(I^2)RT
qV
delta x = (Vo)t + .5at^2

26. second kinematic
no temp change
F/A
(EMF)Rt/10
delta x = (Vo)t + .5at^2

27. adibatic
no heat flow
Q=CV
E/B
hc/wavelength

28. electric field in a distance r from a charge
h/mv
k|Q|/r^2
joules/second
L -LCostheta

29. equation of continuity
constant pressure
V^2=(Vo)^2 +2a*change in x
AV=(A2)(V2)
deltaU = deltaQ + deltaW

30. force a charge in a Bfield
qVB
roeVg
F/A
(hc/wavelength)=h(Fo) +(Vs)

31. units for voltage other than volts
pL/A
AV=(A2)(V2)
Joules/Columb
roeVg

32. the force on a charge in an electric field
(Di)/(Do) or (Hi)/(Ho)
constant pressure
qE
h(Fo)

33. velocity of an electrion as it exitws from the hole
mV -m(Vo)
no temp change
KI/r
qrB/m

34. type of collision where K is conserved
elastic collision
n(Cv)(deltaT)
deltaU -deltaW
mV -m(Vo)

35. formula for constructive interference in a thin membrane with two phase changes
FV
2nt=mwavelength
MC(deltaT)
M(Lf)

36. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
F/A
.5CV^2 or .5 Q^2/C or .5QV
dSintheta=mwavelength

37. 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
0
(No)(wavelength)=(Nn)(new wavelength)
VI

38. force of frction on an incline
perfectly inelastic collision
L -LCostheta
mgCostheta(mu)d
1/2wavelength

39. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x
Q=CV

40. formula for impluse involving time
mV -m(Vo)
(3/2)nRdeltaT
J= Ft
d/2

41. velocity of waves on a string if tension is known
(3/2)nRdeltaT
k|Q|/r^2
sqrt(T/(m/))
2nt=mwavelength

42. formula for power with Voltage and resistance
opposite motion
F/A
(V^2)/R
(hc/wavelength)=h(Fo) +(Vs)

43. formula for efficiency not using work out
V = (Vo) + at
GM*M/(r^2)
((Qin) -(Qout))/(Qin)
KI/r

44. formula for Carnot efficiency
((Th) -(Tl))/(Th)
qrB/m
mV -m(Vo)
(hc/wavelength)=h(Fo) +(Vs)

45. formula to find the absoluate pressure at the bottom of a pool
opposite motion
V^2=(Vo)^2 +2a*change in x
sqrt(T/(m/))
(Patm) + (Pgauge)

46. formula for height of the block (at the start of a pendulum string) in terms of theta and L
n(Cv)(deltaT)
constant pressure
L -LCostheta
hc/wavelength

47. heat during a cyclic process (net heat)
Joules/Columb
deltaU -deltaW
(I^2)RT
FV

48. the units of current other than amps
Columbs/second
frequency never changes for light problems
roeVg
V^2=(Vo)^2 +2a*change in x

49. isometric
Q=CV
constant volume
inelastic collision
deltaU -deltaW

50. natural frequency of a closed tube of length L
1/4wavelength
GM*M/(r^2)
V^2=(Vo)^2 +2a*change in x
mV -m(Vo)