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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. isothermal
perfectly inelastic collision
net work = delta K
no temp change
qrB/m

2. formula for power with current and voltage
VI
dSintheta=mwavelength
(EMF)Rt/10
k|Q|/r^2

3. heat required to melt a substance
dSintheta=mwavelength
(EMF)Rt/10
M(Lf)
-KA

4. natural frequency of a closed tube of length L
h(Fo)
h/wavelength
1/2wavelength
1/4wavelength

5. formula to find the gauge pressure at the bottom of a pool
qE
joules/second
MC(deltaT)
roegh

6. forgotten power equation
V = (Vo) + at
FV
2nt=mwavelength
(Wnet)/(Qin)

7. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
frequency never changes for light problems
-KA
E/B
J= Ft

8. new wavelength of light as it enters a new substance
pL/A
.5KA^2
J= Ft
(No)(wavelength)=(Nn)(new wavelength)

9. formula for height of the block (at the start of a pendulum string) in terms of theta and L
J= Ft
((Th) -(Tl))/(Th)
.5CV^2 or .5 Q^2/C or .5QV
L -LCostheta

10. energy of a photon if wavelength is known
no force (right hand rule)
hc/wavelength
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems

11. type of collision where objects stick togerther
h/wavelength
perfectly inelastic collision
e=mc^2
constant volume

12. electric field in a distance r from a charge
net work = delta K
k|Q|/r^2
sqrt(3KT/m)
mgCostheta(mu)d

13. formula for impulse involving momentum
mV -m(Vo)
qrB/m
inelastic collision
net work = delta K

14. change in internal energy during a cyclic process
frequency never changes for light problems
h(Fo)
h/wavelength
0

15. formula for Carnot efficiency
((Th) -(Tl))/(Th)
(hc/wavelength)=h(Fo) +(Vs)
.5KA^2
n(Cv)(deltaT)

16. equation for the first law of thermodynamics
.5CV^2 or .5 Q^2/C or .5QV
k|Q|/r^2
deltaU = deltaQ + deltaW
constant pressure

17. adibatic
no heat flow
inelastic collision
qE
mgCostheta(mu)d

18. type of collision where K is not conserved
2Pi * sqrt(l/g)
KQ/r
net work = delta K
inelastic collision

19. formula for critical angle
1/2wavelength
h/wavelength
Q=CV
(N2)/(N1)

20. natural frequency of an open tube of length L
1/2wavelength
(3/2)nRdeltaT
h/wavelength
((Qin) -(Qout))/(Qin)

21. formula for power with Voltage and resistance
(3/2)nRdeltaT
1/((1/C)+(1/C)..........)
(V^2)/R
perfectly inelastic collision

22. velocity of a molecule of gas
E/B
BA
sqrt(3KT/m)
h(Fo)

23. type of collision where K is conserved
e=mc^2
h/mv
elastic collision
1/4wavelength

24. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
mgCostheta(mu)d
(EMF)Rt/10
constant volume
(N2)/(N1)

25. formula for charge stored in a capciator
nSintheta=nsintheta
pL/A
.5mV^2 + .5KA^2
Q=CV

26. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
((Qin) -(Qout))/(Qin)
V^2=(Vo)^2 +2a*change in x
perfectly inelastic collision
qV

27. the force on a charge moving parallel to a magnetic field
net work = delta K
h/mv
no force (right hand rule)
(V^2)/R

28. work energy theorum
2nt=mwavelength
-KA
Columbs/second
net work = delta K

29. formula for change in internal energy in a cosnstat volume PV process
perfectly inelastic collision
(3/2)nRdeltaT
VI
(No)(wavelength)=(Nn)(new wavelength)

30. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
KI/r
mgCostheta(mu)d
qV

31. hooke's law force of a spring
no heat flow
(3/2)nRdeltaT
-KA
.5KA^2

32. formula for finding the magnetic field a distance r from a current carrying wire
pL/A
GM*M/(r^2)
mV -m(Vo)
KI/r

33. formula relating voltage and electric field
inelastic collision
Ed=V
(Di)/(Do) or (Hi)/(Ho)
constant volume

34. formula for centripetal acceleration
G M/((d/2)^2)
BLv
M(Lf)
(V^2)/r

35. formula for the wavelength (debroglie wavelength) of a moving particle
V = (Vo) + at
roeVg
h/mv
constant volume

36. formula for torque
m(v^2)/qvB
perfectly inelastic collision
(I^2)R
rF

37. force a charge in a Bfield
m(v^2)/qvB
(No)(wavelength)=(Nn)(new wavelength)
1/4wavelength
qVB

38. focal length of a mirror with radius d
KI/r
elastic collision
E/B
d/2

39. formula for constructive interference in a diffraction grating
qVB
K |q||Q|/r^2
no force (right hand rule)
dSintheta=mwavelength

40. new frequency of light as it enters a new substance
frequency never changes for light problems
h/mv
pL/A
2Pi * sqrt(l/g)

41. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
2Pi * sqrt(l/g)
V+IR
net work = delta K

42. electric potential a distance r from a charge
(V^2)/r
deltaU -deltaW
joules/second
KQ/r

43. force of gravity between two objects of mass m
KI/r
perfectly inelastic collision
GM*M/(r^2)
.5mV^2 + .5KA^2

44. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
-KA
V+IR
qrB/m

45. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
KI/r
frequency never changes for light problems
2Pi * sqrt(l/g)

46. formula for finding the momentum of a photon
VI
qE
mgCostheta(mu)d
h/wavelength

47. pressure
F/A
.5mV^2 + .5KA^2
delta x = (Vo)t + .5at^2
no force (right hand rule)

48. what direction is friction?
h/wavelength
opposite motion
(EMF)Rt/10
J= Ft

49. formula for period of a pendulum
2Pi * sqrt(l/g)
(No)(wavelength)=(Nn)(new wavelength)
BA
FV

50. third kinematic
(Fn)(mu)
V^2=(Vo)^2 +2a*change in x
sqrt(T/(m/))
nSintheta=nsintheta