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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.
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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. forgotten power equation
nSintheta=nsintheta
FV
delta x = (Vo)t + .5at^2
(1/Do) + (1/Di) = (1/f)

2. second kinematic
k|Q|/r^2
(Fn)(mu)
-KA
delta x = (Vo)t + .5at^2

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

4. formula for finding the work function of a metal if the cutoff frequency is known
L -LCostheta
h(Fo)
roeVg
(hc/wavelength)=h(Fo) +(Vs)

5. formula for impulse involving momentum
KI/r
AV=(A2)(V2)
mV -m(Vo)
sqrt(T/(m/))

6. formula for height of the block (at the start of a pendulum string) in terms of theta and L
1/((1/C)+(1/C)..........)
constant volume
1/2wavelength
L -LCostheta

7. formula for change in internal energy in a cosnstat volume PV process
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT
V+IR
h(Fo)

8. third kinematic
V^2=(Vo)^2 +2a*change in x
inelastic collision
L -LCostheta
-KA

9. formula for centripetal acceleration
F/A
(V^2)/r
sqrt(3KT/m)
M(Lf)

10. formula for finding the momentum of a photon
KQ/r
elastic collision
roegh
h/wavelength

11. adibatic
L -LCostheta
V = (Vo) + at
(V^2)/r
no heat flow

12. formula for Carnot efficiency
((Th) -(Tl))/(Th)
(EMF)Rt/10
E/B
((Qin) -(Qout))/(Qin)

13. heat required to change temperature of a substance
k|Q|/r^2
inelastic collision
MC(deltaT)
((Th) -(Tl))/(Th)

14. heat during a cyclic process (net heat)
d/2
delta x = (Vo)t + .5at^2
m(v^2)/qvB
deltaU -deltaW

15. voltage induced in a rod moving through a uniform magnetic field
opposite motion
Joules/Columb
BLv
2Pi * sqrt(l/g)

16. formula for torque
rF
sqrt(3KT/m)
nSintheta=nsintheta
mgCostheta(mu)d

17. new frequency of light as it enters a new substance
E/B
GM*M/(r^2)
sqrt(T/(m/))
frequency never changes for light problems

18. electric field in a distance r from a charge
n(Cv)(deltaT)
V+IR
h(Fo)
k|Q|/r^2

19. the electric force between two objects of charge Q
nSintheta=nsintheta
delta x = (Vo)t + .5at^2
(I^2)R
K |q||Q|/r^2

20. energy stored in a capacitor
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta
rF
.5CV^2 or .5 Q^2/C or .5QV

21. formula for constructive interference in a thin membrane with two phase changes
no force (right hand rule)
(Patm) + (Pgauge)
2nt=mwavelength
roegh

22. first kinematic
E/B
(I^2)RT
G M/((d/2)^2)
V = (Vo) + at

23. formula for period of a pendulum
2Pi * sqrt(l/g)
opposite motion
rF
no temp change

24. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
mV -m(Vo)
(Patm) + (Pgauge)
h(Fo)
qV

25. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
1/2wavelength
sqrt(3KT/m)
e=mc^2
(I^2)RT

26. velocity of waves on a string if tension is known
sqrt(T/(m/))
Columbs/second
1/4wavelength
net work = delta K

27. formula to find the absoluate pressure at the bottom of a pool
(I^2)RT
opposite motion
(Patm) + (Pgauge)
-KA

28. formula for the wavelength (debroglie wavelength) of a moving particle
inelastic collision
mV -m(Vo)
h/mv
((Th) -(Tl))/(Th)

29. formula for impluse involving time
k|Q|/r^2
sqrt(3KT/m)
J= Ft
FV

30. formula for buoyant force
roeVg
delta x = (Vo)t + .5at^2
no heat flow
constant volume

31. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
no temp change
k|Q|/r^2
1/4wavelength

32. formula for critical angle
(EMF)Rt/10
GM*M/(r^2)
(N2)/(N1)
.5CV^2 or .5 Q^2/C or .5QV

33. isothermal
FV
qrB/m
no temp change
.5CV^2 or .5 Q^2/C or .5QV

34. heat required to melt a substance
M(Lf)
BLv
dSintheta=mwavelength
constant pressure

35. formula relating voltage and electric field
inelastic collision
constant pressure
V^2=(Vo)^2 +2a*change in x
Ed=V

36. the units of current other than amps
h/mv
L -LCostheta
Columbs/second
K |q||Q|/r^2

37. force a charge in a Bfield
qrB/m
qVB
AV=(A2)(V2)
no force (right hand rule)

38. formula for power with current and voltage
V+IR
roeVg
(V^2)/R
VI

39. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
Ed=V
E/B
V^2=(Vo)^2 +2a*change in x
(hc/wavelength)=h(Fo) +(Vs)

40. formula for power with Voltage and resistance
FV
L -LCostheta
(V^2)/R
inelastic collision

41. isometric
G M/((d/2)^2)
2Pi * sqrt(l/g)
pL/A
constant volume

42. force of gravity between two objects of mass m
no force (right hand rule)
(No)(wavelength)=(Nn)(new wavelength)
GM*M/(r^2)
L -LCostheta

43. change in internal energy during a cyclic process
AV=(A2)(V2)
L -LCostheta
1/2wavelength
0

44. total capacitance of capacitors in series
(1/Do) + (1/Di) = (1/f)
1/((1/C)+(1/C)..........)
(Patm) + (Pgauge)
(Wnet)/(Qin)

45. 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
dSintheta=mwavelength
(Fn)(mu)
VI

46. radius of curvature of a charged particle as it enters a uniform magnetic field
(1/Do) + (1/Di) = (1/f)
m(v^2)/qvB
.5CV^2 or .5 Q^2/C or .5QV
GM*M/(r^2)

47. focal length of a mirror with radius d
hc/wavelength
mV -m(Vo)
d/2
V = (Vo) + at

48. formula for finding magnetic flux
((Th) -(Tl))/(Th)
AV=(A2)(V2)
G M/((d/2)^2)
BA

49. formula for constructive interference in a diffraction grating
1/((1/C)+(1/C)..........)
dSintheta=mwavelength
G M/((d/2)^2)
(Fn)(mu)

50. electric potential a distance r from a charge
KQ/r
Q=CV
.5mV^2 + .5KA^2
n(Cv)(deltaT)