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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. hooke's law force of a spring
-KA
qVB
constant volume
elastic collision

2. formula for charge stored in a capciator
elastic collision
k|Q|/r^2
Q=CV
MC(deltaT)

3. formula for change in internal energy in a cosnstat volume PV process
(1/Do) + (1/Di) = (1/f)
sqrt(T/(m/))
constant pressure
(3/2)nRdeltaT

4. formula for impluse involving time
.5CV^2 or .5 Q^2/C or .5QV
(V^2)/R
J= Ft
.5KA^2

5. formula for finding the work function of a metal if the cutoff frequency is known
FV
1/((1/C)+(1/C)..........)
h(Fo)
-KA

6. isobaric
no temp change
constant pressure
(EMF)Rt/10
0

7. natural frequency of a closed tube of length L
Joules/Columb
1/4wavelength
2Pi * sqrt(l/g)
.5mV^2 + .5KA^2

8. energy of a photon if wavelength is known
(V^2)/r
MC(deltaT)
(Wnet)/(Qin)
hc/wavelength

9. formula for the wavelength (debroglie wavelength) of a moving particle
M(Lf)
h/mv
inelastic collision
VI

10. formula for constructive interference in a diffraction grating
deltaU = deltaQ + deltaW
mV -m(Vo)
(I^2)R
dSintheta=mwavelength

11. velocity of an electrion as it exitws from the hole
1/((1/C)+(1/C)..........)
qrB/m
J= Ft
FV

12. isothermal
(I^2)R
qrB/m
no temp change
pL/A

13. units for voltage other than volts
opposite motion
Joules/Columb
m(v^2)/qvB
net work = delta K

14. formula for impulse involving momentum
L -LCostheta
1/4wavelength
K |q||Q|/r^2
mV -m(Vo)

15. magnification equation
(Di)/(Do) or (Hi)/(Ho)
2Pi * sqrt(l/g)
qrB/m
(I^2)R

16. formula for centripetal acceleration
e=mc^2
(V^2)/r
VI
BLv

17. resistance of a wire
Columbs/second
pL/A
joules/second
VI

18. formula for constructive interference in a thin membrane with two phase changes
1/2wavelength
pL/A
2nt=mwavelength
BLv

19. work energy theorum
net work = delta K
hc/wavelength
dSintheta=mwavelength
no force (right hand rule)

20. formula for energy of a spring mass when spring is at maximum displacement
.5mV^2 + .5KA^2
.5KA^2
(I^2)RT
K |q||Q|/r^2

21. formula to find the gauge pressure at the bottom of a pool
0
k|Q|/r^2
roegh
qrB/m

22. formula to find the absoluate pressure at the bottom of a pool
(3/2)nRdeltaT
(Patm) + (Pgauge)
F/A
Ed=V

23. first kinematic
n(Cv)(deltaT)
(I^2)RT
hc/wavelength
V = (Vo) + at

24. second kinematic
delta x = (Vo)t + .5at^2
(1/Do) + (1/Di) = (1/f)
VI
(N2)/(N1)

25. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
(3/2)nRdeltaT
MC(deltaT)
Ed=V

26. forgotten power equation
FV
e=mc^2
no temp change
V^2=(Vo)^2 +2a*change in x

27. formula for critical angle
(N2)/(N1)
pL/A
delta x = (Vo)t + .5at^2
AV=(A2)(V2)

28. natural frequency of an open tube of length L
1/4wavelength
frequency never changes for light problems
1/2wavelength
.5CV^2 or .5 Q^2/C or .5QV

29. EMF of a battery having internal resistance R
V+IR
.5KA^2
G M/((d/2)^2)
Q=CV

30. snells law
h/mv
KQ/r
nSintheta=nsintheta
m(v^2)/qvB

31. pressure
-KA
F/A
elastic collision
net work = delta K

32. formula for Carnot efficiency
perfectly inelastic collision
((Th) -(Tl))/(Th)
deltaU -deltaW
1/4wavelength

33. the electric force between two objects of charge Q
roeVg
K |q||Q|/r^2
2nt=mwavelength
sqrt(T/(m/))

34. voltage induced in a rod moving through a uniform magnetic field
qE
Joules/Columb
mV -m(Vo)
BLv

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

36. heat during an isometric process
(Fn)(mu)
n(Cv)(deltaT)
1/2wavelength
(Wnet)/(Qin)

37. formula for power with current and voltage
VI
rF
net work = delta K
h/wavelength

38. type of collision where K is conserved
roegh
elastic collision
qVB
d/2

39. change in internal energy during a cyclic process
no heat flow
0
no temp change
2Pi * sqrt(l/g)

40. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
d/2
G M/((d/2)^2)
((Qin) -(Qout))/(Qin)
V+IR

41. force of gravity between two objects of mass m
h/mv
GM*M/(r^2)
(V^2)/R
(Wnet)/(Qin)

42. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(Patm) + (Pgauge)
nSintheta=nsintheta
h/wavelength
(EMF)Rt/10

43. heat required to melt a substance
M(Lf)
no temp change
Columbs/second
inelastic collision

44. formula for power with current and resistance
qE
(I^2)R
e=mc^2
rF

45. formula for finding magnetic flux
(No)(wavelength)=(Nn)(new wavelength)
BA
no temp change
dSintheta=mwavelength

46. what direction is friction?
qE
opposite motion
hc/wavelength
V^2=(Vo)^2 +2a*change in x

47. new frequency of light as it enters a new substance
frequency never changes for light problems
deltaU = deltaQ + deltaW
VI
sqrt(3KT/m)

48. focal length of a mirror with radius d
((Th) -(Tl))/(Th)
(Di)/(Do) or (Hi)/(Ho)
d/2
GM*M/(r^2)

49. velocity of waves on a string if tension is known
elastic collision
(3/2)nRdeltaT
roegh
sqrt(T/(m/))

50. type of collision where K is not conserved
mgCostheta(mu)d
sqrt(T/(m/))
inelastic collision
mV -m(Vo)