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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. force of frction on an incline
0
(Fn)(mu)
opposite motion
mgCostheta(mu)d

2. formula for Carnot efficiency
deltaU -deltaW
KI/r
((Th) -(Tl))/(Th)
n(Cv)(deltaT)

3. formula for torque
rF
F/A
nSintheta=nsintheta
V = (Vo) + at

4. formula for buoyant force
deltaU -deltaW
FV
(I^2)R
roeVg

5. heat during an isometric process
BLv
BA
0
n(Cv)(deltaT)

6. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
L -LCostheta
qrB/m
V+IR
E/B

7. units for voltage other than volts
Joules/Columb
opposite motion
Q=CV
(I^2)R

8. formula for constructive interference in a diffraction grating
perfectly inelastic collision
G M/((d/2)^2)
dSintheta=mwavelength
MC(deltaT)

9. adibatic
1/4wavelength
nSintheta=nsintheta
no heat flow
pL/A

10. velocity of a molecule of gas
perfectly inelastic collision
sqrt(T/(m/))
sqrt(3KT/m)
BLv

11. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
V = (Vo) + at
qVB
((Qin) -(Qout))/(Qin)

12. formula for efficiency of a heat engine using work out
sqrt(T/(m/))
pL/A
h/wavelength
(Wnet)/(Qin)

13. the electric force between two objects of charge Q
K |q||Q|/r^2
no force (right hand rule)
opposite motion
2Pi * sqrt(l/g)

14. force of friction
no force (right hand rule)
hc/wavelength
(No)(wavelength)=(Nn)(new wavelength)
(Fn)(mu)

15. pressure
F/A
sqrt(3KT/m)
rF
deltaU -deltaW

16. 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)
Columbs/second
d/2
(hc/wavelength)=h(Fo) +(Vs)

17. formula for constructive interference in a thin membrane with two phase changes
L -LCostheta
2nt=mwavelength
(V^2)/r
delta x = (Vo)t + .5at^2

18. what direction is friction?
2nt=mwavelength
opposite motion
K |q||Q|/r^2
mgCostheta(mu)d

19. formula for power with Voltage and resistance
(V^2)/R
L -LCostheta
roeVg
0

20. energy of a photon if wavelength is known
FV
BA
hc/wavelength
constant volume

21. isometric
(1/Do) + (1/Di) = (1/f)
G M/((d/2)^2)
constant volume
(N2)/(N1)

22. first kinematic
(Wnet)/(Qin)
V = (Vo) + at
(hc/wavelength)=h(Fo) +(Vs)
(Patm) + (Pgauge)

23. formula for finding magnetic flux
((Qin) -(Qout))/(Qin)
(V^2)/r
BA
inelastic collision

24. heat required to change temperature of a substance
sqrt(3KT/m)
MC(deltaT)
deltaU -deltaW
KI/r

25. formula for efficiency not using work out
G M/((d/2)^2)
((Qin) -(Qout))/(Qin)
e=mc^2
Ed=V

26. formula for impluse involving time
L -LCostheta
J= Ft
(Patm) + (Pgauge)
.5mV^2 + .5KA^2

27. voltage induced in a rod moving through a uniform magnetic field
KQ/r
h/mv
BLv
elastic collision

28. electric potential a distance r from a charge
KQ/r
MC(deltaT)
2Pi * sqrt(l/g)
mgCostheta(mu)d

29. snells law
inelastic collision
nSintheta=nsintheta
(Wnet)/(Qin)
GM*M/(r^2)

30. total capacitance of capacitors in series
.5KA^2
constant volume
qVB
1/((1/C)+(1/C)..........)

31. change in internal energy during a cyclic process
(EMF)Rt/10
constant volume
(Di)/(Do) or (Hi)/(Ho)
0

32. formula for charge stored in a capciator
h/wavelength
h(Fo)
deltaU -deltaW
Q=CV

33. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
sqrt(3KT/m)
m(v^2)/qvB
h(Fo)

34. isobaric
constant pressure
KQ/r
mgCostheta(mu)d
F/A

35. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
VI
KQ/r
sqrt(T/(m/))

36. heat during a cyclic process (net heat)
perfectly inelastic collision
deltaU -deltaW
roeVg
no force (right hand rule)

37. formula for change in internal energy in a cosnstat volume PV process
BLv
BA
mV -m(Vo)
(3/2)nRdeltaT

38. formula equating energy and mass
e=mc^2
(V^2)/r
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x

39. focal length of a mirror with radius d
MC(deltaT)
KI/r
.5mV^2 + .5KA^2
d/2

40. formula for period of a pendulum
inelastic collision
qVB
n(Cv)(deltaT)
2Pi * sqrt(l/g)

41. second kinematic
E/B
nSintheta=nsintheta
delta x = (Vo)t + .5at^2
2Pi * sqrt(l/g)

42. type of collision where objects stick togerther
J= Ft
perfectly inelastic collision
M(Lf)
(V^2)/r

43. formula to find the gauge pressure at the bottom of a pool
V = (Vo) + at
roegh
.5CV^2 or .5 Q^2/C or .5QV
(Di)/(Do) or (Hi)/(Ho)

44. formula for the wavelength (debroglie wavelength) of a moving particle
(Fn)(mu)
2nt=mwavelength
h/mv
nSintheta=nsintheta

45. velocity of waves on a string if tension is known
delta x = (Vo)t + .5at^2
sqrt(T/(m/))
(Di)/(Do) or (Hi)/(Ho)
dSintheta=mwavelength

46. hooke's law force of a spring
F/A
-KA
(V^2)/r
m(v^2)/qvB

47. heat required to melt a substance
KI/r
F/A
deltaU = deltaQ + deltaW
M(Lf)

48. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
F/A
(I^2)RT
qrB/m
e=mc^2

49. the force on a charge in an electric field
qE
delta x = (Vo)t + .5at^2
roeVg
GM*M/(r^2)

50. equation of continuity
e=mc^2
Ed=V
FV
AV=(A2)(V2)