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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. formula for finding the work function of a metal if the cutoff frequency is known
Columbs/second
V = (Vo) + at
deltaU = deltaQ + deltaW
h(Fo)

2. adibatic
((Qin) -(Qout))/(Qin)
Ed=V
no heat flow
n(Cv)(deltaT)

3. third kinematic
V^2=(Vo)^2 +2a*change in x
elastic collision
sqrt(3KT/m)
MC(deltaT)

4. formula equating energy and mass
E/B
Columbs/second
e=mc^2
Ed=V

5. type of collision where K is conserved
M(Lf)
.5CV^2 or .5 Q^2/C or .5QV
elastic collision
-KA

6. formula to find the absoluate pressure at the bottom of a pool
.5KA^2
(Patm) + (Pgauge)
qrB/m
GM*M/(r^2)

7. formula for finding the magnetic field a distance r from a current carrying wire
(I^2)R
AV=(A2)(V2)
KI/r
(Wnet)/(Qin)

8. type of collision where objects stick togerther
perfectly inelastic collision
J= Ft
opposite motion
G M/((d/2)^2)

9. the force on a charge in an electric field
qE
sqrt(T/(m/))
(Patm) + (Pgauge)
KI/r

10. formula for torque
m(v^2)/qvB
V^2=(Vo)^2 +2a*change in x
sqrt(3KT/m)
rF

11. formula for buoyant force
.5KA^2
roeVg
GM*M/(r^2)
(N2)/(N1)

12. formula for charge stored in a capciator
Q=CV
GM*M/(r^2)
n(Cv)(deltaT)
qVB

13. what direction is friction?
roegh
BA
opposite motion
L -LCostheta

14. electric potential a distance r from a charge
V^2=(Vo)^2 +2a*change in x
J= Ft
rF
KQ/r

15. the electric force between two objects of charge Q
qV
K |q||Q|/r^2
no heat flow
V = (Vo) + at

16. isobaric
constant pressure
1/2wavelength
(V^2)/r
elastic collision

17. hooke's law force of a spring
(hc/wavelength)=h(Fo) +(Vs)
-KA
nSintheta=nsintheta
E/B

18. formula for impulse involving momentum
(hc/wavelength)=h(Fo) +(Vs)
F/A
mV -m(Vo)
Q=CV

19. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
((Qin) -(Qout))/(Qin)
no heat flow
(Di)/(Do) or (Hi)/(Ho)

20. formula for impluse involving time
J= Ft
inelastic collision
nSintheta=nsintheta
(3/2)nRdeltaT

21. change in internal energy during a cyclic process
sqrt(3KT/m)
BA
0
net work = delta K

22. formula for the wavelength (debroglie wavelength) of a moving particle
((Th) -(Tl))/(Th)
h/mv
pL/A
sqrt(T/(m/))

23. equation for the first law of thermodynamics
d/2
K |q||Q|/r^2
MC(deltaT)
deltaU = deltaQ + deltaW

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
joules/second
L -LCostheta
mV -m(Vo)
qV

25. new wavelength of light as it enters a new substance
MC(deltaT)
k|Q|/r^2
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV

26. formula for critical angle
(V^2)/R
(Fn)(mu)
sqrt(T/(m/))
(N2)/(N1)

27. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
1/2wavelength
1/((1/C)+(1/C)..........)
m(v^2)/qvB

28. focal length of a mirror with radius d
AV=(A2)(V2)
no force (right hand rule)
delta x = (Vo)t + .5at^2
d/2

29. formula for centripetal acceleration
Columbs/second
K |q||Q|/r^2
(1/Do) + (1/Di) = (1/f)
(V^2)/r

30. equation of continuity
AV=(A2)(V2)
no heat flow
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT

31. formula for Carnot efficiency
(Fn)(mu)
((Th) -(Tl))/(Th)
no heat flow
.5CV^2 or .5 Q^2/C or .5QV

32. resistance of a wire
sqrt(3KT/m)
dSintheta=mwavelength
pL/A
(Fn)(mu)

33. magnification equation
.5CV^2 or .5 Q^2/C or .5QV
no heat flow
(Di)/(Do) or (Hi)/(Ho)
mgCostheta(mu)d

34. the force on a charge moving parallel to a magnetic field
net work = delta K
.5CV^2 or .5 Q^2/C or .5QV
VI
no force (right hand rule)

35. heat during an isometric process
n(Cv)(deltaT)
KQ/r
(Wnet)/(Qin)
delta x = (Vo)t + .5at^2

36. energy stored in a capacitor
KI/r
.5CV^2 or .5 Q^2/C or .5QV
KQ/r
(V^2)/R

37. formula for change in internal energy in a cosnstat volume PV process
mgCostheta(mu)d
(3/2)nRdeltaT
m(v^2)/qvB
2Pi * sqrt(l/g)

38. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
.5KA^2
(1/Do) + (1/Di) = (1/f)
G M/((d/2)^2)
hc/wavelength

39. formula for power with current and resistance
(I^2)R
MC(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
opposite motion

40. formula for finding the momentum of a photon
mgCostheta(mu)d
(Wnet)/(Qin)
(No)(wavelength)=(Nn)(new wavelength)
h/wavelength

41. force of gravity between two objects of mass m
J= Ft
FV
GM*M/(r^2)
(3/2)nRdeltaT

42. forgotten power equation
-KA
.5mV^2 + .5KA^2
FV
1/((1/C)+(1/C)..........)

43. voltage induced in a rod moving through a uniform magnetic field
k|Q|/r^2
BLv
perfectly inelastic collision
joules/second

44. formula for constructive interference in a diffraction grating
(Patm) + (Pgauge)
GM*M/(r^2)
sqrt(3KT/m)
dSintheta=mwavelength

45. units for voltage other than volts
h/mv
BLv
(3/2)nRdeltaT
Joules/Columb

46. heat required to melt a substance
roeVg
G M/((d/2)^2)
n(Cv)(deltaT)
M(Lf)

47. force a charge in a Bfield
qVB
(No)(wavelength)=(Nn)(new wavelength)
((Th) -(Tl))/(Th)
.5mV^2 + .5KA^2

48. first kinematic
V = (Vo) + at
deltaU = deltaQ + deltaW
FV
((Qin) -(Qout))/(Qin)

49. the units of current other than amps
(V^2)/r
M(Lf)
m(v^2)/qvB
Columbs/second

50. natural frequency of an open tube of length L
constant pressure
M(Lf)
1/2wavelength
sqrt(3KT/m)