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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. the units of current other than amps
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)
Columbs/second
k|Q|/r^2

2. formula for impulse involving momentum
BLv
mV -m(Vo)
d/2
h/wavelength

3. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
FV
(hc/wavelength)=h(Fo) +(Vs)
E/B
1/4wavelength

4. the units of power other than watts
VI
joules/second
(Wnet)/(Qin)
(No)(wavelength)=(Nn)(new wavelength)

5. formula for efficiency of a heat engine using work out
J= Ft
qrB/m
(Wnet)/(Qin)
joules/second

6. formula for buoyant force
roeVg
(I^2)RT
L -LCostheta
m(v^2)/qvB

7. electric field in a distance r from a charge
1/((1/C)+(1/C)..........)
k|Q|/r^2
roegh
2Pi * sqrt(l/g)

8. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
delta x = (Vo)t + .5at^2
sqrt(3KT/m)
roeVg

9. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
sqrt(3KT/m)
(I^2)RT
qVB

10. hooke's law force of a spring
(3/2)nRdeltaT
-KA
mgCostheta(mu)d
((Th) -(Tl))/(Th)

11. lens/mirror equation
2Pi * sqrt(l/g)
KI/r
(1/Do) + (1/Di) = (1/f)
deltaU -deltaW

12. formula for finding the momentum of a photon
frequency never changes for light problems
(V^2)/r
h/wavelength
((Th) -(Tl))/(Th)

13. formula for constructive interference in a diffraction grating
((Th) -(Tl))/(Th)
M(Lf)
V = (Vo) + at
dSintheta=mwavelength

14. formula for power with current and voltage
(Fn)(mu)
((Qin) -(Qout))/(Qin)
VI
.5mV^2 + .5KA^2

15. the force on a charge in an electric field
qE
h/wavelength
1/4wavelength
Ed=V

16. what direction is friction?
h/mv
FV
1/4wavelength
opposite motion

17. magnification equation
(Di)/(Do) or (Hi)/(Ho)
.5mV^2 + .5KA^2
(3/2)nRdeltaT
n(Cv)(deltaT)

18. heat during a cyclic process (net heat)
KQ/r
d/2
n(Cv)(deltaT)
deltaU -deltaW

19. formula for torque
F/A
e=mc^2
rF
net work = delta K

20. resistance of a wire
perfectly inelastic collision
2Pi * sqrt(l/g)
pL/A
sqrt(3KT/m)

21. the electric force between two objects of charge Q
K |q||Q|/r^2
perfectly inelastic collision
qV
(Wnet)/(Qin)

22. formula equating energy and mass
(hc/wavelength)=h(Fo) +(Vs)
pL/A
e=mc^2
(1/Do) + (1/Di) = (1/f)

23. change in internal energy during a cyclic process
mgCostheta(mu)d
0
E/B
qE

24. type of collision where K is conserved
FV
elastic collision
no temp change
(V^2)/R

25. equation of continuity
(I^2)R
constant volume
AV=(A2)(V2)
(V^2)/r

26. EMF of a battery having internal resistance R
(I^2)R
V+IR
(1/Do) + (1/Di) = (1/f)
M(Lf)

27. electric potential a distance r from a charge
E/B
1/4wavelength
qE
KQ/r

28. units for voltage other than volts
L -LCostheta
perfectly inelastic collision
FV
Joules/Columb

29. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
joules/second
(Patm) + (Pgauge)
constant pressure
G M/((d/2)^2)

30. heat during an isometric process
k|Q|/r^2
n(Cv)(deltaT)
(V^2)/R
.5KA^2

31. forgotten power equation
qrB/m
FV
1/2wavelength
(1/Do) + (1/Di) = (1/f)

32. force of gravity between two objects of mass m
0
GM*M/(r^2)
qV
(Patm) + (Pgauge)

33. formula for power with Voltage and resistance
(V^2)/R
no temp change
perfectly inelastic collision
2nt=mwavelength

34. second kinematic
qVB
AV=(A2)(V2)
FV
delta x = (Vo)t + .5at^2

35. formula for charge stored in a capciator
Q=CV
((Qin) -(Qout))/(Qin)
.5KA^2
sqrt(T/(m/))

36. total capacitance of capacitors in series
(N2)/(N1)
h/mv
1/((1/C)+(1/C)..........)
joules/second

37. isothermal
1/4wavelength
roegh
no temp change
(V^2)/r

38. new wavelength of light as it enters a new substance
mgCostheta(mu)d
V = (Vo) + at
h/wavelength
(No)(wavelength)=(Nn)(new wavelength)

39. heat required to change temperature of a substance
.5CV^2 or .5 Q^2/C or .5QV
G M/((d/2)^2)
MC(deltaT)
0

40. formula for the wavelength (debroglie wavelength) of a moving particle
E/B
h/mv
n(Cv)(deltaT)
-KA

41. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
Columbs/second
(EMF)Rt/10
inelastic collision
VI

42. formula relating voltage and electric field
(Fn)(mu)
mgCostheta(mu)d
Ed=V
2nt=mwavelength

43. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
d/2
no force (right hand rule)
.5mV^2 + .5KA^2
opposite motion

44. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
G M/((d/2)^2)
(I^2)RT
(N2)/(N1)
2nt=mwavelength

45. formula for power with current and resistance
joules/second
AV=(A2)(V2)
(I^2)R
Columbs/second

46. first kinematic
net work = delta K
d/2
V = (Vo) + at
AV=(A2)(V2)

47. type of collision where objects stick togerther
(I^2)R
G M/((d/2)^2)
1/4wavelength
perfectly inelastic collision

48. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
L -LCostheta
mgCostheta(mu)d
k|Q|/r^2
(hc/wavelength)=h(Fo) +(Vs)

49. third kinematic
V^2=(Vo)^2 +2a*change in x
deltaU = deltaQ + deltaW
mgCostheta(mu)d
.5mV^2 + .5KA^2

50. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
.5KA^2
roeVg
KQ/r
qV