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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. velocity of waves on a string if tension is known
roeVg
(No)(wavelength)=(Nn)(new wavelength)
1/((1/C)+(1/C)..........)
sqrt(T/(m/))

2. first kinematic
(hc/wavelength)=h(Fo) +(Vs)
V = (Vo) + at
1/((1/C)+(1/C)..........)
.5mV^2 + .5KA^2

3. work energy theorum
net work = delta K
no force (right hand rule)
Q=CV
qVB

4. the force on a charge in an electric field
qE
hc/wavelength
((Th) -(Tl))/(Th)
K |q||Q|/r^2

5. magnification equation
F/A
roegh
(Di)/(Do) or (Hi)/(Ho)
constant volume

6. formula for critical angle
((Th) -(Tl))/(Th)
(N2)/(N1)
2nt=mwavelength
qVB

7. electric potential a distance r from a charge
mV -m(Vo)
BLv
(V^2)/R
KQ/r

8. heat required to melt a substance
elastic collision
roeVg
M(Lf)
V^2=(Vo)^2 +2a*change in x

9. pressure
1/((1/C)+(1/C)..........)
F/A
qE
VI

10. isothermal
2Pi * sqrt(l/g)
no temp change
(I^2)R
delta x = (Vo)t + .5at^2

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
qrB/m
(Wnet)/(Qin)
V = (Vo) + at
qV

12. formula for constructive interference in a thin membrane with two phase changes
sqrt(3KT/m)
BLv
BA
2nt=mwavelength

13. new frequency of light as it enters a new substance
roeVg
V = (Vo) + at
frequency never changes for light problems
(N2)/(N1)

14. energy of a photon if wavelength is known
hc/wavelength
deltaU -deltaW
(No)(wavelength)=(Nn)(new wavelength)
qVB

15. formula for efficiency not using work out
FV
no heat flow
((Qin) -(Qout))/(Qin)
MC(deltaT)

16. formula for centripetal acceleration
(V^2)/r
n(Cv)(deltaT)
Joules/Columb
inelastic collision

17. formula for power with current and voltage
h/wavelength
((Th) -(Tl))/(Th)
joules/second
VI

18. third kinematic
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)
(3/2)nRdeltaT
V^2=(Vo)^2 +2a*change in x

19. second kinematic
(V^2)/r
constant pressure
sqrt(3KT/m)
delta x = (Vo)t + .5at^2

20. what direction is friction?
opposite motion
mV -m(Vo)
qV
qE

21. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
net work = delta K
(I^2)RT
qV
Columbs/second

22. formula for torque
Ed=V
rF
Q=CV
elastic collision

23. heat during a cyclic process (net heat)
(No)(wavelength)=(Nn)(new wavelength)
Joules/Columb
deltaU -deltaW
KI/r

24. formula relating voltage and electric field
Ed=V
deltaU = deltaQ + deltaW
(Di)/(Do) or (Hi)/(Ho)
roegh

25. units for voltage other than volts
Joules/Columb
(Fn)(mu)
qE
VI

26. electric field in a distance r from a charge
perfectly inelastic collision
k|Q|/r^2
F/A
mV -m(Vo)

27. formula equating energy and mass
e=mc^2
qVB
(I^2)R
1/((1/C)+(1/C)..........)

28. EMF of a battery having internal resistance R
V+IR
.5KA^2
(Patm) + (Pgauge)
0

29. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
Joules/Columb
(Fn)(mu)
no heat flow

30. heat required to change temperature of a substance
perfectly inelastic collision
((Th) -(Tl))/(Th)
(3/2)nRdeltaT
MC(deltaT)

31. isobaric
0
(N2)/(N1)
constant pressure
2nt=mwavelength

32. formula for constructive interference in a diffraction grating
deltaU -deltaW
dSintheta=mwavelength
hc/wavelength
k|Q|/r^2

33. the electric force between two objects of charge Q
no force (right hand rule)
F/A
net work = delta K
K |q||Q|/r^2

34. natural frequency of an open tube of length L
(No)(wavelength)=(Nn)(new wavelength)
KI/r
1/2wavelength
0

35. forgotten power equation
FV
pL/A
mgCostheta(mu)d
(EMF)Rt/10

36. formula for change in internal energy in a cosnstat volume PV process
M(Lf)
inelastic collision
h/wavelength
(3/2)nRdeltaT

37. force of gravity between two objects of mass m
GM*M/(r^2)
roegh
V^2=(Vo)^2 +2a*change in x
(V^2)/R

38. formula for power with current and resistance
sqrt(T/(m/))
(I^2)R
k|Q|/r^2
net work = delta K

39. formula for impluse involving time
elastic collision
Columbs/second
J= Ft
V^2=(Vo)^2 +2a*change in x

40. snells law
MC(deltaT)
sqrt(T/(m/))
nSintheta=nsintheta
(I^2)RT

41. velocity of an electrion as it exitws from the hole
1/2wavelength
FV
Q=CV
qrB/m

42. the force on a charge moving parallel to a magnetic field
-KA
no force (right hand rule)
rF
MC(deltaT)

43. equation of continuity
e=mc^2
AV=(A2)(V2)
(No)(wavelength)=(Nn)(new wavelength)
(I^2)RT

44. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
K |q||Q|/r^2
deltaU = deltaQ + deltaW
perfectly inelastic collision

45. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
Ed=V
.5mV^2 + .5KA^2
Joules/Columb
h/wavelength

46. formula for charge stored in a capciator
Ed=V
(hc/wavelength)=h(Fo) +(Vs)
h/wavelength
Q=CV

47. heat during an isometric process
d/2
(Fn)(mu)
(hc/wavelength)=h(Fo) +(Vs)
n(Cv)(deltaT)

48. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
1/2wavelength
VI
(N2)/(N1)

49. isometric
(Patm) + (Pgauge)
(V^2)/r
h/mv
constant volume

50. total capacitance of capacitors in series
sqrt(T/(m/))
L -LCostheta
1/((1/C)+(1/C)..........)
FV