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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. formula for power with current and resistance
elastic collision
no force (right hand rule)
(I^2)R
hc/wavelength

2. the electric force between two objects of charge Q
K |q||Q|/r^2
(I^2)R
sqrt(T/(m/))
(EMF)Rt/10

3. work energy theorum
net work = delta K
k|Q|/r^2
d/2
constant pressure

4. resistance of a wire
pL/A
sqrt(T/(m/))
no heat flow
nSintheta=nsintheta

5. the units of power other than watts
qV
sqrt(3KT/m)
deltaU -deltaW
joules/second

6. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
KQ/r
G M/((d/2)^2)
h(Fo)
(Wnet)/(Qin)

7. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
h(Fo)
constant volume
BLv

8. second kinematic
delta x = (Vo)t + .5at^2
2nt=mwavelength
qrB/m
(Patm) + (Pgauge)

9. formula for change in internal energy in a cosnstat volume PV process
(Fn)(mu)
qE
(3/2)nRdeltaT
delta x = (Vo)t + .5at^2

10. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
roegh
(hc/wavelength)=h(Fo) +(Vs)
((Qin) -(Qout))/(Qin)

11. formula equating energy and mass
V = (Vo) + at
n(Cv)(deltaT)
AV=(A2)(V2)
e=mc^2

12. new frequency of light as it enters a new substance
n(Cv)(deltaT)
1/2wavelength
sqrt(T/(m/))
frequency never changes for light problems

13. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
1/4wavelength
delta x = (Vo)t + .5at^2
nSintheta=nsintheta

14. heat during a cyclic process (net heat)
((Qin) -(Qout))/(Qin)
Ed=V
deltaU -deltaW
constant pressure

15. EMF of a battery having internal resistance R
V+IR
0
(I^2)RT
M(Lf)

16. type of collision where K is not conserved
inelastic collision
.5KA^2
(Fn)(mu)
M(Lf)

17. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
joules/second
deltaU = deltaQ + deltaW
(I^2)RT
FV

18. velocity of an electrion as it exitws from the hole
qrB/m
KI/r
net work = delta K
1/((1/C)+(1/C)..........)

19. isometric
0
constant volume
net work = delta K
qV

20. formula for torque
n(Cv)(deltaT)
rF
AV=(A2)(V2)
net work = delta K

21. formula for energy of a spring mass when spring is at maximum displacement
VI
.5KA^2
((Th) -(Tl))/(Th)
(I^2)RT

22. radius of curvature of a charged particle as it enters a uniform magnetic field
FV
m(v^2)/qvB
nSintheta=nsintheta
qVB

23. first kinematic
Columbs/second
V = (Vo) + at
VI
(V^2)/r

24. formula for finding the magnetic field a distance r from a current carrying wire
K |q||Q|/r^2
KI/r
V+IR
(EMF)Rt/10

25. energy of a photon if wavelength is known
hc/wavelength
deltaU = deltaQ + deltaW
((Th) -(Tl))/(Th)
mgCostheta(mu)d

26. formula for height of the block (at the start of a pendulum string) in terms of theta and L
m(v^2)/qvB
2nt=mwavelength
-KA
L -LCostheta

27. formula for buoyant force
deltaU = deltaQ + deltaW
roeVg
joules/second
L -LCostheta

28. magnification equation
(I^2)R
GM*M/(r^2)
F/A
(Di)/(Do) or (Hi)/(Ho)

29. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
VI
(hc/wavelength)=h(Fo) +(Vs)
perfectly inelastic collision

30. change in internal energy during a cyclic process
elastic collision
0
h/mv
V+IR

31. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
1/2wavelength
KQ/r
h(Fo)
qV

32. total capacitance of capacitors in series
(Fn)(mu)
rF
1/((1/C)+(1/C)..........)
k|Q|/r^2

33. formula for finding the momentum of a photon
V^2=(Vo)^2 +2a*change in x
M(Lf)
h/wavelength
BLv

34. formula for the wavelength (debroglie wavelength) of a moving particle
qE
h/mv
J= Ft
deltaU = deltaQ + deltaW

35. natural frequency of an open tube of length L
deltaU = deltaQ + deltaW
deltaU -deltaW
(V^2)/R
1/2wavelength

36. formula for impluse involving time
J= Ft
h/mv
elastic collision
e=mc^2

37. isobaric
(3/2)nRdeltaT
2nt=mwavelength
constant pressure
BLv

38. formula for charge stored in a capciator
(I^2)R
(N2)/(N1)
no temp change
Q=CV

39. formula for power with Voltage and resistance
.5CV^2 or .5 Q^2/C or .5QV
h(Fo)
(V^2)/R
m(v^2)/qvB

40. formula for constructive interference in a thin membrane with two phase changes
.5mV^2 + .5KA^2
e=mc^2
n(Cv)(deltaT)
2nt=mwavelength

41. electric potential a distance r from a charge
joules/second
dSintheta=mwavelength
BLv
KQ/r

42. natural frequency of a closed tube of length L
V+IR
BLv
1/4wavelength
K |q||Q|/r^2

43. snells law
no heat flow
.5CV^2 or .5 Q^2/C or .5QV
2nt=mwavelength
nSintheta=nsintheta

44. isothermal
no temp change
(Wnet)/(Qin)
(3/2)nRdeltaT
d/2

45. formula for impulse involving momentum
mV -m(Vo)
AV=(A2)(V2)
frequency never changes for light problems
m(v^2)/qvB

46. formula for power with current and voltage
mV -m(Vo)
VI
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV

47. heat required to change temperature of a substance
MC(deltaT)
qE
qVB
no force (right hand rule)

48. hooke's law force of a spring
BLv
-KA
((Th) -(Tl))/(Th)
(I^2)RT

49. voltage induced in a rod moving through a uniform magnetic field
BLv
FV
(Di)/(Do) or (Hi)/(Ho)
-KA

50. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
hc/wavelength
GM*M/(r^2)
FV
(EMF)Rt/10