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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. equation for the first law of thermodynamics
M(Lf)
deltaU = deltaQ + deltaW
Joules/Columb
.5mV^2 + .5KA^2

2. the electric force between two objects of charge Q
K |q||Q|/r^2
elastic collision
opposite motion
no force (right hand rule)

3. focal length of a mirror with radius d
d/2
Ed=V
qV
sqrt(T/(m/))

4. the units of current other than amps
Columbs/second
.5CV^2 or .5 Q^2/C or .5QV
inelastic collision
pL/A

5. formula for Carnot efficiency
nSintheta=nsintheta
((Th) -(Tl))/(Th)
rF
L -LCostheta

6. formula for impluse involving time
FV
(Di)/(Do) or (Hi)/(Ho)
joules/second
J= Ft

7. pressure
h/mv
F/A
elastic collision
FV

8. work energy theorum
m(v^2)/qvB
Ed=V
net work = delta K
deltaU -deltaW

9. force a charge in a Bfield
qVB
(Di)/(Do) or (Hi)/(Ho)
FV
m(v^2)/qvB

10. the units of power other than watts
joules/second
(3/2)nRdeltaT
1/4wavelength
(Patm) + (Pgauge)

11. isobaric
J= Ft
constant pressure
mV -m(Vo)
(I^2)R

12. force of gravity between two objects of mass m
FV
frequency never changes for light problems
GM*M/(r^2)
(1/Do) + (1/Di) = (1/f)

13. isothermal
no temp change
(hc/wavelength)=h(Fo) +(Vs)
n(Cv)(deltaT)
qrB/m

14. type of collision where K is conserved
elastic collision
V = (Vo) + at
(No)(wavelength)=(Nn)(new wavelength)
sqrt(T/(m/))

15. hooke's law force of a spring
nSintheta=nsintheta
-KA
(I^2)R
no force (right hand rule)

16. first kinematic
V = (Vo) + at
J= Ft
qrB/m
rF

17. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
G M/((d/2)^2)
1/((1/C)+(1/C)..........)
(EMF)Rt/10
(I^2)R

18. electric field in a distance r from a charge
perfectly inelastic collision
k|Q|/r^2
(N2)/(N1)
dSintheta=mwavelength

19. heat during an isometric process
L -LCostheta
Joules/Columb
(N2)/(N1)
n(Cv)(deltaT)

20. heat required to melt a substance
2nt=mwavelength
M(Lf)
qrB/m
(Wnet)/(Qin)

21. third kinematic
roeVg
mV -m(Vo)
V^2=(Vo)^2 +2a*change in x
G M/((d/2)^2)

22. energy stored in a capacitor
(3/2)nRdeltaT
BLv
(Patm) + (Pgauge)
.5CV^2 or .5 Q^2/C or .5QV

23. what direction is friction?
n(Cv)(deltaT)
opposite motion
joules/second
constant volume

24. formula for finding the work function of a metal if the cutoff frequency is known
0
BA
GM*M/(r^2)
h(Fo)

25. formula to find the gauge pressure at the bottom of a pool
2nt=mwavelength
(1/Do) + (1/Di) = (1/f)
roegh
(No)(wavelength)=(Nn)(new wavelength)

26. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(No)(wavelength)=(Nn)(new wavelength)
(I^2)RT
V+IR
AV=(A2)(V2)

27. total capacitance of capacitors in series
delta x = (Vo)t + .5at^2
1/((1/C)+(1/C)..........)
(Fn)(mu)
Ed=V

28. formula for finding the magnetic field a distance r from a current carrying wire
((Th) -(Tl))/(Th)
opposite motion
KI/r
.5mV^2 + .5KA^2

29. heat required to change temperature of a substance
MC(deltaT)
GM*M/(r^2)
2nt=mwavelength
sqrt(T/(m/))

30. electric potential a distance r from a charge
delta x = (Vo)t + .5at^2
(1/Do) + (1/Di) = (1/f)
(No)(wavelength)=(Nn)(new wavelength)
KQ/r

31. formula for critical angle
(N2)/(N1)
E/B
(V^2)/r
MC(deltaT)

32. heat during a cyclic process (net heat)
.5CV^2 or .5 Q^2/C or .5QV
(Fn)(mu)
deltaU -deltaW
2nt=mwavelength

33. type of collision where objects stick togerther
1/((1/C)+(1/C)..........)
(EMF)Rt/10
perfectly inelastic collision
J= Ft

34. energy of a photon if wavelength is known
hc/wavelength
MC(deltaT)
qVB
K |q||Q|/r^2

35. formula for the wavelength (debroglie wavelength) of a moving particle
k|Q|/r^2
h/mv
.5CV^2 or .5 Q^2/C or .5QV
AV=(A2)(V2)

36. isometric
constant volume
sqrt(T/(m/))
KQ/r
frequency never changes for light problems

37. formula for finding magnetic flux
pL/A
mV -m(Vo)
E/B
BA

38. type of collision where K is not conserved
no temp change
inelastic collision
n(Cv)(deltaT)
(I^2)RT

39. the force on a charge in an electric field
h/mv
(Patm) + (Pgauge)
qrB/m
qE

40. formula for impulse involving momentum
(Fn)(mu)
(I^2)RT
mV -m(Vo)
L -LCostheta

41. magnification equation
qV
(Di)/(Do) or (Hi)/(Ho)
constant volume
1/2wavelength

42. formula for constructive interference in a thin membrane with two phase changes
1/((1/C)+(1/C)..........)
2nt=mwavelength
(EMF)Rt/10
e=mc^2

43. adibatic
V = (Vo) + at
(EMF)Rt/10
FV
no heat flow

44. the force on a charge moving parallel to a magnetic field
Columbs/second
frequency never changes for light problems
no force (right hand rule)
mV -m(Vo)

45. voltage induced in a rod moving through a uniform magnetic field
nSintheta=nsintheta
BLv
mV -m(Vo)
inelastic collision

46. units for voltage other than volts
J= Ft
KI/r
MC(deltaT)
Joules/Columb

47. velocity of an electrion as it exitws from the hole
elastic collision
qrB/m
h(Fo)
KQ/r

48. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
KQ/r
elastic collision
h/mv

49. formula for energy of a spring mass when spring is at maximum displacement
1/2wavelength
d/2
.5KA^2
Columbs/second

50. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
(hc/wavelength)=h(Fo) +(Vs)
((Qin) -(Qout))/(Qin)
pL/A