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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. snells law
qVB
(Di)/(Do) or (Hi)/(Ho)
nSintheta=nsintheta
sqrt(T/(m/))

2. lens/mirror equation
constant pressure
n(Cv)(deltaT)
inelastic collision
(1/Do) + (1/Di) = (1/f)

3. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
deltaU -deltaW
(hc/wavelength)=h(Fo) +(Vs)
no heat flow
J= Ft

4. force of friction
roegh
GM*M/(r^2)
G M/((d/2)^2)
(Fn)(mu)

5. formula for the wavelength (debroglie wavelength) of a moving particle
constant volume
F/A
h/mv
V+IR

6. isothermal
(I^2)RT
h/wavelength
no temp change
V^2=(Vo)^2 +2a*change in x

7. velocity of an electrion as it exitws from the hole
(I^2)RT
V+IR
qrB/m
E/B

8. formula for impluse involving time
0
F/A
.5KA^2
J= Ft

9. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
KI/r
m(v^2)/qvB
Ed=V

10. formula for finding the momentum of a photon
h/wavelength
hc/wavelength
-KA
frequency never changes for light problems

11. formula for power with Voltage and resistance
roegh
(Di)/(Do) or (Hi)/(Ho)
Columbs/second
(V^2)/R

12. formula for height of the block (at the start of a pendulum string) in terms of theta and L
K |q||Q|/r^2
frequency never changes for light problems
L -LCostheta
inelastic collision

13. equation of continuity
-KA
1/4wavelength
AV=(A2)(V2)
hc/wavelength

14. type of collision where K is conserved
e=mc^2
net work = delta K
2nt=mwavelength
elastic collision

15. change in internal energy during a cyclic process
(3/2)nRdeltaT
(Wnet)/(Qin)
(V^2)/r
0

16. the force on a charge in an electric field
h(Fo)
sqrt(T/(m/))
qE
elastic collision

17. type of collision where objects stick togerther
roegh
rF
(N2)/(N1)
perfectly inelastic collision

18. energy stored in a capacitor
M(Lf)
.5CV^2 or .5 Q^2/C or .5QV
perfectly inelastic collision
Columbs/second

19. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
perfectly inelastic collision
.5mV^2 + .5KA^2
roegh
qV

20. formula for finding magnetic flux
no temp change
BA
deltaU = deltaQ + deltaW
.5KA^2

21. formula for Carnot efficiency
FV
n(Cv)(deltaT)
(I^2)RT
((Th) -(Tl))/(Th)

22. the units of current other than amps
-KA
L -LCostheta
Columbs/second
1/4wavelength

23. formula for efficiency of a heat engine using work out
qVB
V+IR
(Wnet)/(Qin)
constant pressure

24. third kinematic
qVB
M(Lf)
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x

25. formula for power with current and voltage
dSintheta=mwavelength
VI
Columbs/second
(I^2)R

26. hooke's law force of a spring
E/B
-KA
deltaU = deltaQ + deltaW
qrB/m

27. type of collision where K is not conserved
2nt=mwavelength
roegh
inelastic collision
h/wavelength

28. new frequency of light as it enters a new substance
((Qin) -(Qout))/(Qin)
frequency never changes for light problems
2nt=mwavelength
2Pi * sqrt(l/g)

29. heat required to change temperature of a substance
k|Q|/r^2
MC(deltaT)
delta x = (Vo)t + .5at^2
h(Fo)

30. formula for buoyant force
no temp change
GM*M/(r^2)
(3/2)nRdeltaT
roeVg

31. pressure
frequency never changes for light problems
(I^2)R
(V^2)/R
F/A

32. focal length of a mirror with radius d
e=mc^2
roegh
d/2
V^2=(Vo)^2 +2a*change in x

33. formula for constructive interference in a diffraction grating
k|Q|/r^2
L -LCostheta
qE
dSintheta=mwavelength

34. formula for torque
rF
((Qin) -(Qout))/(Qin)
1/((1/C)+(1/C)..........)
KQ/r

35. formula for power with current and resistance
(I^2)R
hc/wavelength
1/4wavelength
constant volume

36. formula relating voltage and electric field
-KA
Ed=V
sqrt(T/(m/))
1/((1/C)+(1/C)..........)

37. 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
e=mc^2
J= Ft
V+IR

38. formula for constructive interference in a thin membrane with two phase changes
pL/A
1/4wavelength
KI/r
2nt=mwavelength

39. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
BLv
d/2
E/B
joules/second

40. formula for centripetal acceleration
(V^2)/r
qV
Ed=V
(1/Do) + (1/Di) = (1/f)

41. the electric force between two objects of charge Q
.5mV^2 + .5KA^2
-KA
K |q||Q|/r^2
roegh

42. magnification equation
.5KA^2
(Wnet)/(Qin)
(Di)/(Do) or (Hi)/(Ho)
(1/Do) + (1/Di) = (1/f)

43. work energy theorum
dSintheta=mwavelength
FV
net work = delta K
J= Ft

44. formula equating energy and mass
2nt=mwavelength
constant pressure
mV -m(Vo)
e=mc^2

45. energy of a photon if wavelength is known
hc/wavelength
(Wnet)/(Qin)
no force (right hand rule)
BLv

46. formula for energy of a spring mass when spring is at maximum displacement
(Fn)(mu)
.5KA^2
constant volume
no force (right hand rule)

47. formula for period of a pendulum
delta x = (Vo)t + .5at^2
2Pi * sqrt(l/g)
E/B
perfectly inelastic collision

48. formula to find the gauge pressure at the bottom of a pool
Joules/Columb
qV
roegh
(V^2)/r

49. natural frequency of an open tube of length L
(No)(wavelength)=(Nn)(new wavelength)
M(Lf)
1/2wavelength
(V^2)/R

50. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
net work = delta K
constant volume