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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 finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
mgCostheta(mu)d
(hc/wavelength)=h(Fo) +(Vs)
sqrt(T/(m/))
M(Lf)

2. snells law
constant pressure
nSintheta=nsintheta
AV=(A2)(V2)
h/mv

3. first kinematic
(hc/wavelength)=h(Fo) +(Vs)
F/A
V = (Vo) + at
(Fn)(mu)

4. formula for efficiency of a heat engine using work out
roeVg
(3/2)nRdeltaT
(Wnet)/(Qin)
(Patm) + (Pgauge)

5. force a charge in a Bfield
no heat flow
.5CV^2 or .5 Q^2/C or .5QV
qVB
(No)(wavelength)=(Nn)(new wavelength)

6. electric field in a distance r from a charge
KI/r
K |q||Q|/r^2
(V^2)/R
k|Q|/r^2

7. the force on a charge moving parallel to a magnetic field
AV=(A2)(V2)
((Qin) -(Qout))/(Qin)
perfectly inelastic collision
no force (right hand rule)

8. formula equating energy and mass
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
V^2=(Vo)^2 +2a*change in x
e=mc^2

9. formula for finding magnetic flux
mV -m(Vo)
BA
deltaU -deltaW
Joules/Columb

10. forgotten power equation
((Th) -(Tl))/(Th)
FV
(3/2)nRdeltaT
((Qin) -(Qout))/(Qin)

11. 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/Do) + (1/Di) = (1/f)
rF
qV
(Wnet)/(Qin)

12. formula for the wavelength (debroglie wavelength) of a moving particle
V^2=(Vo)^2 +2a*change in x
Columbs/second
1/2wavelength
h/mv

13. new wavelength of light as it enters a new substance
Q=CV
V = (Vo) + at
MC(deltaT)
(No)(wavelength)=(Nn)(new wavelength)

14. natural frequency of an open tube of length L
M(Lf)
-KA
1/2wavelength
L -LCostheta

15. heat required to melt a substance
M(Lf)
.5KA^2
deltaU = deltaQ + deltaW
hc/wavelength

16. the electric force between two objects of charge Q
d/2
K |q||Q|/r^2
(EMF)Rt/10
-KA

17. formula for power with current and resistance
K |q||Q|/r^2
(I^2)R
MC(deltaT)
(No)(wavelength)=(Nn)(new wavelength)

18. total capacitance of capacitors in series
V = (Vo) + at
1/((1/C)+(1/C)..........)
F/A
L -LCostheta

19. energy stored in a capacitor
KI/r
constant pressure
.5CV^2 or .5 Q^2/C or .5QV
E/B

20. work energy theorum
((Qin) -(Qout))/(Qin)
qrB/m
net work = delta K
(I^2)RT

21. adibatic
sqrt(3KT/m)
rF
no heat flow
Q=CV

22. heat during a cyclic process (net heat)
e=mc^2
(3/2)nRdeltaT
AV=(A2)(V2)
deltaU -deltaW

23. resistance of a wire
deltaU -deltaW
m(v^2)/qvB
pL/A
h/wavelength

24. formula for torque
M(Lf)
Columbs/second
FV
rF

25. formula for period of a pendulum
2Pi * sqrt(l/g)
BLv
Joules/Columb
Columbs/second

26. isometric
Q=CV
2Pi * sqrt(l/g)
constant volume
2nt=mwavelength

27. formula to find the absoluate pressure at the bottom of a pool
V^2=(Vo)^2 +2a*change in x
J= Ft
(Wnet)/(Qin)
(Patm) + (Pgauge)

28. equation of continuity
(V^2)/R
AV=(A2)(V2)
2nt=mwavelength
deltaU -deltaW

29. formula for centripetal acceleration
(V^2)/r
(Patm) + (Pgauge)
sqrt(T/(m/))
2Pi * sqrt(l/g)

30. velocity of a molecule of gas
sqrt(3KT/m)
constant pressure
qrB/m
0

31. EMF of a battery having internal resistance R
k|Q|/r^2
GM*M/(r^2)
h/mv
V+IR

32. formula for energy of a spring mass when spring is at maximum displacement
roeVg
BA
VI
.5KA^2

33. formula for efficiency not using work out
delta x = (Vo)t + .5at^2
h/mv
((Qin) -(Qout))/(Qin)
Joules/Columb

34. energy of a photon if wavelength is known
(Wnet)/(Qin)
qrB/m
2Pi * sqrt(l/g)
hc/wavelength

35. formula for change in internal energy in a cosnstat volume PV process
((Qin) -(Qout))/(Qin)
Columbs/second
F/A
(3/2)nRdeltaT

36. force of frction on an incline
mgCostheta(mu)d
qrB/m
BLv
no heat flow

37. the units of current other than amps
d/2
(3/2)nRdeltaT
Columbs/second
deltaU = deltaQ + deltaW

38. second kinematic
rF
n(Cv)(deltaT)
(No)(wavelength)=(Nn)(new wavelength)
delta x = (Vo)t + .5at^2

39. new frequency of light as it enters a new substance
F/A
Columbs/second
e=mc^2
frequency never changes for light problems

40. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(1/Do) + (1/Di) = (1/f)
h(Fo)
L -LCostheta
V = (Vo) + at

41. magnification equation
2Pi * sqrt(l/g)
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT
.5CV^2 or .5 Q^2/C or .5QV

42. voltage induced in a rod moving through a uniform magnetic field
mV -m(Vo)
qrB/m
BLv
perfectly inelastic collision

43. velocity of waves on a string if tension is known
sqrt(T/(m/))
.5CV^2 or .5 Q^2/C or .5QV
F/A
BLv

44. equation for the first law of thermodynamics
.5CV^2 or .5 Q^2/C or .5QV
Joules/Columb
deltaU = deltaQ + deltaW
(Fn)(mu)

45. formula for critical angle
KI/r
-KA
((Th) -(Tl))/(Th)
(N2)/(N1)

46. formula for buoyant force
constant volume
roeVg
AV=(A2)(V2)
M(Lf)

47. radius of curvature of a charged particle as it enters a uniform magnetic field
Joules/Columb
K |q||Q|/r^2
m(v^2)/qvB
opposite motion

48. the force on a charge in an electric field
constant pressure
qE
(I^2)RT
GM*M/(r^2)

49. force of friction
(Fn)(mu)
qV
J= Ft
rF

50. the units of power other than watts
m(v^2)/qvB
(V^2)/r
MC(deltaT)
joules/second