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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 constructive interference in a diffraction grating
sqrt(3KT/m)
dSintheta=mwavelength
(I^2)RT
Columbs/second

2. type of collision where K is conserved
(I^2)R
inelastic collision
elastic collision
G M/((d/2)^2)

3. heat during an isometric process
(Wnet)/(Qin)
roegh
n(Cv)(deltaT)
h(Fo)

4. formula for power with Voltage and resistance
1/2wavelength
deltaU = deltaQ + deltaW
.5KA^2
(V^2)/R

5. formula for impulse involving momentum
mV -m(Vo)
no temp change
V+IR
G M/((d/2)^2)

6. forgotten power equation
FV
(V^2)/r
V = (Vo) + at
Ed=V

7. formula for change in internal energy in a cosnstat volume PV process
.5CV^2 or .5 Q^2/C or .5QV
-KA
dSintheta=mwavelength
(3/2)nRdeltaT

8. heat during a cyclic process (net heat)
deltaU -deltaW
Ed=V
AV=(A2)(V2)
no force (right hand rule)

9. velocity of an electrion as it exitws from the hole
2nt=mwavelength
G M/((d/2)^2)
qrB/m
roegh

10. formula for buoyant force
h(Fo)
dSintheta=mwavelength
roeVg
net work = delta K

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

12. second kinematic
(Fn)(mu)
delta x = (Vo)t + .5at^2
dSintheta=mwavelength
no temp change

13. formula for energy of a spring mass when spring is at maximum displacement
roegh
roeVg
.5KA^2
qVB

14. force of gravity between two objects of mass m
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)
h/wavelength
AV=(A2)(V2)

15. formula for charge stored in a capciator
Q=CV
sqrt(T/(m/))
opposite motion
h(Fo)

16. what direction is friction?
opposite motion
G M/((d/2)^2)
K |q||Q|/r^2
GM*M/(r^2)

17. formula for period of a pendulum
mgCostheta(mu)d
2Pi * sqrt(l/g)
.5mV^2 + .5KA^2
pL/A

18. formula for the wavelength (debroglie wavelength) of a moving particle
.5KA^2
pL/A
AV=(A2)(V2)
h/mv

19. velocity of a molecule of gas
h/wavelength
sqrt(3KT/m)
perfectly inelastic collision
opposite motion

20. focal length of a mirror with radius d
V+IR
(No)(wavelength)=(Nn)(new wavelength)
d/2
G M/((d/2)^2)

21. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
BLv
KQ/r
qE

22. the electric force between two objects of charge Q
elastic collision
K |q||Q|/r^2
roegh
opposite motion

23. change in internal energy during a cyclic process
Ed=V
2nt=mwavelength
(Patm) + (Pgauge)
0

24. resistance of a wire
pL/A
.5mV^2 + .5KA^2
m(v^2)/qvB
inelastic collision

25. equation of continuity
AV=(A2)(V2)
.5CV^2 or .5 Q^2/C or .5QV
(1/Do) + (1/Di) = (1/f)
pL/A

26. first kinematic
M(Lf)
V = (Vo) + at
sqrt(3KT/m)
inelastic collision

27. snells law
net work = delta K
FV
nSintheta=nsintheta
(EMF)Rt/10

28. total capacitance of capacitors in series
d/2
2Pi * sqrt(l/g)
(V^2)/r
1/((1/C)+(1/C)..........)

29. formula for finding magnetic flux
(3/2)nRdeltaT
BA
deltaU = deltaQ + deltaW
sqrt(T/(m/))

30. natural frequency of an open tube of length L
1/2wavelength
deltaU = deltaQ + deltaW
V = (Vo) + at
d/2

31. units for voltage other than volts
nSintheta=nsintheta
(Wnet)/(Qin)
Joules/Columb
h/mv

32. formula for centripetal acceleration
1/4wavelength
(V^2)/r
net work = delta K
FV

33. lens/mirror equation
(No)(wavelength)=(Nn)(new wavelength)
-KA
(1/Do) + (1/Di) = (1/f)
h/mv

34. formula for constructive interference in a thin membrane with two phase changes
(3/2)nRdeltaT
.5KA^2
V = (Vo) + at
2nt=mwavelength

35. the units of power other than watts
(V^2)/r
joules/second
e=mc^2
L -LCostheta

36. hooke's law force of a spring
(Patm) + (Pgauge)
K |q||Q|/r^2
J= Ft
-KA

37. new frequency of light as it enters a new substance
(V^2)/R
0
frequency never changes for light problems
KQ/r

38. formula relating voltage and electric field
.5KA^2
1/2wavelength
Ed=V
BLv

39. formula for efficiency not using work out
E/B
((Qin) -(Qout))/(Qin)
BA
delta x = (Vo)t + .5at^2

40. heat required to change temperature of a substance
.5CV^2 or .5 Q^2/C or .5QV
V+IR
MC(deltaT)
F/A

41. velocity of waves on a string if tension is known
MC(deltaT)
sqrt(T/(m/))
V = (Vo) + at
1/((1/C)+(1/C)..........)

42. work energy theorum
net work = delta K
((Th) -(Tl))/(Th)
opposite motion
elastic collision

43. new wavelength of light as it enters a new substance
qE
(No)(wavelength)=(Nn)(new wavelength)
BLv
1/((1/C)+(1/C)..........)

44. voltage induced in a rod moving through a uniform magnetic field
(hc/wavelength)=h(Fo) +(Vs)
BLv
V+IR
no force (right hand rule)

45. formula for Carnot efficiency
no heat flow
h(Fo)
((Th) -(Tl))/(Th)
roeVg

46. isometric
(EMF)Rt/10
(I^2)RT
1/4wavelength
constant volume

47. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
deltaU = deltaQ + deltaW
(N2)/(N1)
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)

48. formula for efficiency of a heat engine using work out
Ed=V
(Wnet)/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
no force (right hand rule)

49. 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
KI/r
G M/((d/2)^2)
nSintheta=nsintheta

50. formula for impluse involving time
delta x = (Vo)t + .5at^2
J= Ft
K |q||Q|/r^2
(Di)/(Do) or (Hi)/(Ho)