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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 period of a pendulum
(N2)/(N1)
(Di)/(Do) or (Hi)/(Ho)
V+IR
2Pi * sqrt(l/g)

2. formula for critical angle
inelastic collision
(EMF)Rt/10
VI
(N2)/(N1)

3. type of collision where K is not conserved
KI/r
m(v^2)/qvB
(N2)/(N1)
inelastic collision

4. magnification equation
(Di)/(Do) or (Hi)/(Ho)
M(Lf)
L -LCostheta
inelastic collision

5. the units of power other than watts
joules/second
Ed=V
frequency never changes for light problems
(No)(wavelength)=(Nn)(new wavelength)

6. formula for power with current and voltage
deltaU -deltaW
F/A
0
VI

7. total capacitance of capacitors in series
qV
1/((1/C)+(1/C)..........)
(Patm) + (Pgauge)
no heat flow

8. formula for charge stored in a capciator
qVB
Q=CV
V^2=(Vo)^2 +2a*change in x
hc/wavelength

9. units for voltage other than volts
pL/A
Joules/Columb
K |q||Q|/r^2
deltaU = deltaQ + deltaW

10. formula for efficiency of a heat engine using work out
KQ/r
no heat flow
roegh
(Wnet)/(Qin)

11. natural frequency of an open tube of length L
1/2wavelength
inelastic collision
((Th) -(Tl))/(Th)
L -LCostheta

12. formula for finding the momentum of a photon
M(Lf)
2nt=mwavelength
pL/A
h/wavelength

13. formula for impulse involving momentum
h/wavelength
L -LCostheta
Ed=V
mV -m(Vo)

14. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
delta x = (Vo)t + .5at^2
pL/A
KQ/r

15. isothermal
pL/A
n(Cv)(deltaT)
((Th) -(Tl))/(Th)
no temp change

16. focal length of a mirror with radius d
perfectly inelastic collision
d/2
no force (right hand rule)
(Fn)(mu)

17. heat required to melt a substance
1/((1/C)+(1/C)..........)
roegh
elastic collision
M(Lf)

18. the units of current other than amps
Columbs/second
.5mV^2 + .5KA^2
roegh
(Fn)(mu)

19. the force on a charge moving parallel to a magnetic field
no heat flow
no force (right hand rule)
G M/((d/2)^2)
h(Fo)

20. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
BA
h(Fo)
(EMF)Rt/10

21. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
(I^2)RT
roeVg
qVB

22. equation for the first law of thermodynamics
(V^2)/r
deltaU = deltaQ + deltaW
V = (Vo) + at
2Pi * sqrt(l/g)

23. heat during a cyclic process (net heat)
VI
qVB
deltaU -deltaW
e=mc^2

24. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
2Pi * sqrt(l/g)
(hc/wavelength)=h(Fo) +(Vs)
V^2=(Vo)^2 +2a*change in x
KI/r

25. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
K |q||Q|/r^2
dSintheta=mwavelength
BLv

26. formula for power with current and resistance
(N2)/(N1)
((Th) -(Tl))/(Th)
J= Ft
(I^2)R

27. electric potential a distance r from a charge
h(Fo)
KQ/r
constant pressure
MC(deltaT)

28. force a charge in a Bfield
MC(deltaT)
qVB
qE
KQ/r

29. formula for constructive interference in a diffraction grating
V = (Vo) + at
Joules/Columb
sqrt(3KT/m)
dSintheta=mwavelength

30. formula for finding the magnetic field a distance r from a current carrying wire
1/((1/C)+(1/C)..........)
KI/r
(I^2)R
h/wavelength

31. velocity of an electrion as it exitws from the hole
qrB/m
hc/wavelength
J= Ft
KQ/r

32. adibatic
deltaU -deltaW
no heat flow
frequency never changes for light problems
1/4wavelength

33. formula for height of the block (at the start of a pendulum string) in terms of theta and L
VI
L -LCostheta
(3/2)nRdeltaT
inelastic collision

34. heat during an isometric process
joules/second
pL/A
n(Cv)(deltaT)
h/wavelength

35. natural frequency of a closed tube of length L
deltaU -deltaW
M(Lf)
1/4wavelength
e=mc^2

36. third kinematic
V^2=(Vo)^2 +2a*change in x
VI
V+IR
(1/Do) + (1/Di) = (1/f)

37. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
1/4wavelength
(I^2)RT
no heat flow
VI

38. electric field in a distance r from a charge
k|Q|/r^2
n(Cv)(deltaT)
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT

39. formula for buoyant force
(V^2)/r
V^2=(Vo)^2 +2a*change in x
roeVg
2Pi * sqrt(l/g)

40. type of collision where K is conserved
elastic collision
deltaU = deltaQ + deltaW
2nt=mwavelength
deltaU -deltaW

41. formula for torque
sqrt(T/(m/))
((Qin) -(Qout))/(Qin)
(N2)/(N1)
rF

42. formula for the wavelength (debroglie wavelength) of a moving particle
(V^2)/R
J= Ft
h/mv
qV

43. change in internal energy during a cyclic process
Q=CV
frequency never changes for light problems
0
h(Fo)

44. lens/mirror equation
perfectly inelastic collision
pL/A
no heat flow
(1/Do) + (1/Di) = (1/f)

45. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
elastic collision
qV
(Fn)(mu)
h/wavelength

46. formula for finding magnetic flux
no force (right hand rule)
(Fn)(mu)
BA
V^2=(Vo)^2 +2a*change in x

47. second kinematic
perfectly inelastic collision
0
net work = delta K
delta x = (Vo)t + .5at^2

48. formula for impluse involving time
sqrt(T/(m/))
J= Ft
K |q||Q|/r^2
sqrt(3KT/m)

49. formula equating energy and mass
deltaU -deltaW
e=mc^2
roegh
Ed=V

50. resistance of a wire
pL/A
roeVg
no temp change
mgCostheta(mu)d