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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. velocity of an electrion as it exitws from the hole
(No)(wavelength)=(Nn)(new wavelength)
GM*M/(r^2)
(Fn)(mu)
qrB/m

2. isobaric
(Fn)(mu)
roegh
constant pressure
(V^2)/R

3. formula for impulse involving momentum
mV -m(Vo)
FV
GM*M/(r^2)
1/2wavelength

4. resistance of a wire
e=mc^2
pL/A
.5KA^2
Joules/Columb

5. 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)
(Patm) + (Pgauge)
rF
FV

6. change in internal energy during a cyclic process
G M/((d/2)^2)
no heat flow
2Pi * sqrt(l/g)
0

7. formula for Carnot efficiency
(Di)/(Do) or (Hi)/(Ho)
((Th) -(Tl))/(Th)
1/((1/C)+(1/C)..........)
FV

8. formula for torque
rF
dSintheta=mwavelength
2Pi * sqrt(l/g)
nSintheta=nsintheta

9. force of gravity between two objects of mass m
(N2)/(N1)
sqrt(3KT/m)
GM*M/(r^2)
constant pressure

10. formula for power with current and voltage
VI
no force (right hand rule)
Columbs/second
MC(deltaT)

11. isometric
d/2
constant volume
1/4wavelength
2Pi * sqrt(l/g)

12. radius of curvature of a charged particle as it enters a uniform magnetic field
(N2)/(N1)
m(v^2)/qvB
opposite motion
h(Fo)

13. force a charge in a Bfield
qVB
no temp change
(I^2)RT
delta x = (Vo)t + .5at^2

14. energy of a photon if wavelength is known
hc/wavelength
qVB
1/((1/C)+(1/C)..........)
V = (Vo) + at

15. heat required to melt a substance
M(Lf)
dSintheta=mwavelength
inelastic collision
m(v^2)/qvB

16. lens/mirror equation
V = (Vo) + at
(1/Do) + (1/Di) = (1/f)
h/wavelength
(Wnet)/(Qin)

17. focal length of a mirror with radius d
V = (Vo) + at
BLv
(N2)/(N1)
d/2

18. heat during an isometric process
inelastic collision
e=mc^2
(1/Do) + (1/Di) = (1/f)
n(Cv)(deltaT)

19. formula to find the gauge pressure at the bottom of a pool
roegh
e=mc^2
K |q||Q|/r^2
delta x = (Vo)t + .5at^2

20. hooke's law force of a spring
-KA
roegh
joules/second
KI/r

21. formula for efficiency not using work out
mgCostheta(mu)d
FV
((Qin) -(Qout))/(Qin)
(Wnet)/(Qin)

22. formula equating energy and mass
.5KA^2
(Fn)(mu)
(hc/wavelength)=h(Fo) +(Vs)
e=mc^2

23. new frequency of light as it enters a new substance
no heat flow
pL/A
frequency never changes for light problems
qE

24. third kinematic
GM*M/(r^2)
.5CV^2 or .5 Q^2/C or .5QV
E/B
V^2=(Vo)^2 +2a*change in x

25. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
.5CV^2 or .5 Q^2/C or .5QV
mgCostheta(mu)d
BLv

26. formula for charge stored in a capciator
(I^2)R
Q=CV
rF
Joules/Columb

27. electric potential a distance r from a charge
KQ/r
.5CV^2 or .5 Q^2/C or .5QV
mV -m(Vo)
sqrt(T/(m/))

28. pressure
((Th) -(Tl))/(Th)
h(Fo)
F/A
V^2=(Vo)^2 +2a*change in x

29. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
G M/((d/2)^2)
(EMF)Rt/10
MC(deltaT)
mgCostheta(mu)d

30. formula for constructive interference in a diffraction grating
Ed=V
(I^2)RT
dSintheta=mwavelength
k|Q|/r^2

31. electric field in a distance r from a charge
Joules/Columb
no heat flow
VI
k|Q|/r^2

32. formula for height of the block (at the start of a pendulum string) in terms of theta and L
frequency never changes for light problems
L -LCostheta
mgCostheta(mu)d
.5KA^2

33. snells law
BLv
nSintheta=nsintheta
V = (Vo) + at
-KA

34. formula for power with Voltage and resistance
M(Lf)
(V^2)/R
0
(Patm) + (Pgauge)

35. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
K |q||Q|/r^2
qV
((Th) -(Tl))/(Th)
inelastic collision

36. formula to find the absoluate pressure at the bottom of a pool
dSintheta=mwavelength
sqrt(3KT/m)
(Patm) + (Pgauge)
-KA

37. natural frequency of an open tube of length L
1/2wavelength
elastic collision
V+IR
d/2

38. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(No)(wavelength)=(Nn)(new wavelength)
m(v^2)/qvB
h(Fo)
(hc/wavelength)=h(Fo) +(Vs)

39. heat during a cyclic process (net heat)
0
pL/A
deltaU -deltaW
.5CV^2 or .5 Q^2/C or .5QV

40. work energy theorum
net work = delta K
.5mV^2 + .5KA^2
((Th) -(Tl))/(Th)
AV=(A2)(V2)

41. units for voltage other than volts
m(v^2)/qvB
VI
F/A
Joules/Columb

42. type of collision where K is not conserved
inelastic collision
0
k|Q|/r^2
sqrt(T/(m/))

43. formula for finding magnetic flux
opposite motion
e=mc^2
.5KA^2
BA

44. formula for finding the work function of a metal if the cutoff frequency is known
k|Q|/r^2
h(Fo)
inelastic collision
V = (Vo) + at

45. equation of continuity
.5mV^2 + .5KA^2
.5KA^2
1/2wavelength
AV=(A2)(V2)

46. formula for buoyant force
inelastic collision
mgCostheta(mu)d
G M/((d/2)^2)
roeVg

47. equation for the first law of thermodynamics
pL/A
qE
deltaU = deltaQ + deltaW
BLv

48. forgotten power equation
FV
pL/A
K |q||Q|/r^2
M(Lf)

49. velocity of a molecule of gas
Joules/Columb
VI
sqrt(3KT/m)
no force (right hand rule)

50. formula for critical angle
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV
net work = delta K
(N2)/(N1)