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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 equating energy and mass
elastic collision
e=mc^2
AV=(A2)(V2)
GM*M/(r^2)

2. formula for energy of a spring mass when spring is at maximum displacement
qV
.5KA^2
KQ/r
(hc/wavelength)=h(Fo) +(Vs)

3. the force on a charge in an electric field
opposite motion
frequency never changes for light problems
M(Lf)
qE

4. heat required to change temperature of a substance
mgCostheta(mu)d
qE
MC(deltaT)
BA

5. force a charge in a Bfield
no heat flow
(3/2)nRdeltaT
nSintheta=nsintheta
qVB

6. natural frequency of an open tube of length L
1/2wavelength
(Fn)(mu)
Columbs/second
k|Q|/r^2

7. formula for change in internal energy in a cosnstat volume PV process
GM*M/(r^2)
dSintheta=mwavelength
(3/2)nRdeltaT
perfectly inelastic collision

8. formula for power with current and voltage
(N2)/(N1)
.5mV^2 + .5KA^2
m(v^2)/qvB
VI

9. force of friction
GM*M/(r^2)
(Fn)(mu)
1/4wavelength
pL/A

10. formula for impulse involving momentum
(Patm) + (Pgauge)
h/mv
mV -m(Vo)
no heat flow

11. energy of a photon if wavelength is known
delta x = (Vo)t + .5at^2
hc/wavelength
Ed=V
(Patm) + (Pgauge)

12. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
qVB
pL/A
no force (right hand rule)

13. force of gravity between two objects of mass m
1/4wavelength
k|Q|/r^2
-KA
GM*M/(r^2)

14. the units of power other than watts
joules/second
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)
(Fn)(mu)

15. energy stored in a capacitor
mgCostheta(mu)d
.5mV^2 + .5KA^2
.5CV^2 or .5 Q^2/C or .5QV
KQ/r

16. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
M(Lf)
no force (right hand rule)
(3/2)nRdeltaT

17. formula for critical angle
GM*M/(r^2)
(N2)/(N1)
no heat flow
(3/2)nRdeltaT

18. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
n(Cv)(deltaT)
k|Q|/r^2
V = (Vo) + at

19. adibatic
qVB
BLv
no heat flow
BA

20. focal length of a mirror with radius d
delta x = (Vo)t + .5at^2
(I^2)R
d/2
KQ/r

21. new wavelength of light as it enters a new substance
G M/((d/2)^2)
nSintheta=nsintheta
mV -m(Vo)
(No)(wavelength)=(Nn)(new wavelength)

22. new frequency of light as it enters a new substance
J= Ft
m(v^2)/qvB
(I^2)R
frequency never changes for light problems

23. natural frequency of a closed tube of length L
1/4wavelength
no heat flow
h/wavelength
2Pi * sqrt(l/g)

24. hooke's law force of a spring
(Di)/(Do) or (Hi)/(Ho)
VI
mgCostheta(mu)d
-KA

25. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
1/4wavelength
GM*M/(r^2)
BA

26. type of collision where K is not conserved
(3/2)nRdeltaT
mgCostheta(mu)d
inelastic collision
perfectly inelastic collision

27. voltage induced in a rod moving through a uniform magnetic field
KI/r
constant volume
BLv
mgCostheta(mu)d

28. formula for efficiency of a heat engine using work out
inelastic collision
(V^2)/r
Q=CV
(Wnet)/(Qin)

29. formula for finding magnetic flux
constant volume
BA
roeVg
deltaU -deltaW

30. formula for impluse involving time
.5mV^2 + .5KA^2
e=mc^2
J= Ft
elastic collision

31. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
hc/wavelength
roegh
KI/r
qV

32. formula relating voltage and electric field
h/mv
d/2
-KA
Ed=V

33. change in internal energy during a cyclic process
opposite motion
inelastic collision
0
joules/second

34. velocity of a molecule of gas
Ed=V
1/4wavelength
sqrt(3KT/m)
mV -m(Vo)

35. heat during a cyclic process (net heat)
deltaU -deltaW
n(Cv)(deltaT)
rF
qE

36. formula to find the absoluate pressure at the bottom of a pool
(Wnet)/(Qin)
(Patm) + (Pgauge)
(Di)/(Do) or (Hi)/(Ho)
VI

37. radius of curvature of a charged particle as it enters a uniform magnetic field
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
m(v^2)/qvB
(Fn)(mu)

38. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
AV=(A2)(V2)
BLv
rF

39. type of collision where objects stick togerther
nSintheta=nsintheta
delta x = (Vo)t + .5at^2
opposite motion
perfectly inelastic collision

40. velocity of waves on a string if tension is known
sqrt(T/(m/))
mgCostheta(mu)d
1/((1/C)+(1/C)..........)
mV -m(Vo)

41. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
m(v^2)/qvB
G M/((d/2)^2)
(Patm) + (Pgauge)
sqrt(T/(m/))

42. magnification equation
F/A
(Di)/(Do) or (Hi)/(Ho)
sqrt(3KT/m)
k|Q|/r^2

43. formula for period of a pendulum
mgCostheta(mu)d
no temp change
2Pi * sqrt(l/g)
opposite motion

44. pressure
(V^2)/R
GM*M/(r^2)
F/A
.5KA^2

45. work energy theorum
net work = delta K
.5KA^2
sqrt(3KT/m)
qV

46. formula for buoyant force
roeVg
0
elastic collision
(V^2)/R

47. first kinematic
frequency never changes for light problems
V = (Vo) + at
J= Ft
net work = delta K

48. heat required to melt a substance
mV -m(Vo)
M(Lf)
nSintheta=nsintheta
(hc/wavelength)=h(Fo) +(Vs)

49. formula for the wavelength (debroglie wavelength) of a moving particle
elastic collision
2nt=mwavelength
(V^2)/R
h/mv

50. formula for centripetal acceleration
h/wavelength
e=mc^2
(Fn)(mu)
(V^2)/r