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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. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
F/A
hc/wavelength
(EMF)Rt/10
qrB/m

2. formula equating energy and mass
opposite motion
-KA
Q=CV
e=mc^2

3. formula for critical angle
qE
(N2)/(N1)
GM*M/(r^2)
.5KA^2

4. second kinematic
deltaU = deltaQ + deltaW
deltaU -deltaW
KQ/r
delta x = (Vo)t + .5at^2

5. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
BA
roeVg
(N2)/(N1)
.5mV^2 + .5KA^2

6. the units of current other than amps
constant volume
(3/2)nRdeltaT
(I^2)R
Columbs/second

7. isobaric
(V^2)/r
((Th) -(Tl))/(Th)
frequency never changes for light problems
constant pressure

8. resistance of a wire
pL/A
qE
Joules/Columb
rF

9. change in internal energy during a cyclic process
elastic collision
(Di)/(Do) or (Hi)/(Ho)
0
Q=CV

10. units for voltage other than volts
(V^2)/r
Joules/Columb
h/wavelength
(No)(wavelength)=(Nn)(new wavelength)

11. formula for power with Voltage and resistance
GM*M/(r^2)
Columbs/second
(hc/wavelength)=h(Fo) +(Vs)
(V^2)/R

12. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
roegh
E/B
F/A
1/2wavelength

13. the electric force between two objects of charge Q
J= Ft
0
(EMF)Rt/10
K |q||Q|/r^2

14. what direction is friction?
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x
opposite motion
((Th) -(Tl))/(Th)

15. formula for the wavelength (debroglie wavelength) of a moving particle
sqrt(T/(m/))
mV -m(Vo)
h/mv
m(v^2)/qvB

16. formula for height of the block (at the start of a pendulum string) in terms of theta and L
perfectly inelastic collision
deltaU -deltaW
joules/second
L -LCostheta

17. formula relating voltage and electric field
MC(deltaT)
Ed=V
.5KA^2
(EMF)Rt/10

18. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
KI/r
V^2=(Vo)^2 +2a*change in x
no heat flow

19. velocity of an electrion as it exitws from the hole
(1/Do) + (1/Di) = (1/f)
K |q||Q|/r^2
qE
qrB/m

20. formula for buoyant force
h/wavelength
1/((1/C)+(1/C)..........)
Q=CV
roeVg

21. EMF of a battery having internal resistance R
1/2wavelength
V = (Vo) + at
m(v^2)/qvB
V+IR

22. velocity of waves on a string if tension is known
M(Lf)
(V^2)/r
sqrt(T/(m/))
(hc/wavelength)=h(Fo) +(Vs)

23. the units of power other than watts
joules/second
MC(deltaT)
qE
elastic collision

24. formula to find the absoluate pressure at the bottom of a pool
m(v^2)/qvB
(Patm) + (Pgauge)
KQ/r
rF

25. type of collision where K is conserved
(Patm) + (Pgauge)
k|Q|/r^2
elastic collision
2nt=mwavelength

26. equation of continuity
AV=(A2)(V2)
inelastic collision
Columbs/second
net work = delta K

27. isometric
(N2)/(N1)
constant volume
nSintheta=nsintheta
F/A

28. snells law
nSintheta=nsintheta
d/2
FV
sqrt(3KT/m)

29. energy stored in a capacitor
(Wnet)/(Qin)
Q=CV
.5CV^2 or .5 Q^2/C or .5QV
Columbs/second

30. formula for power with current and resistance
rF
roegh
Q=CV
(I^2)R

31. formula for finding magnetic flux
G M/((d/2)^2)
BA
1/((1/C)+(1/C)..........)
inelastic collision

32. force of gravity between two objects of mass m
GM*M/(r^2)
constant volume
(V^2)/R
perfectly inelastic collision

33. formula for finding the magnetic field a distance r from a current carrying wire
2nt=mwavelength
KI/r
e=mc^2
Ed=V

34. force of frction on an incline
V+IR
E/B
mgCostheta(mu)d
e=mc^2

35. electric potential a distance r from a charge
KQ/r
deltaU = deltaQ + deltaW
V+IR
qV

36. energy of a photon if wavelength is known
hc/wavelength
MC(deltaT)
e=mc^2
qrB/m

37. formula for efficiency of a heat engine using work out
qrB/m
(Wnet)/(Qin)
hc/wavelength
sqrt(T/(m/))

38. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
rF
qrB/m
h/wavelength

39. force a charge in a Bfield
1/4wavelength
(Wnet)/(Qin)
qVB
roegh

40. work energy theorum
sqrt(3KT/m)
(N2)/(N1)
qVB
net work = delta K

41. formula for change in internal energy in a cosnstat volume PV process
KQ/r
V = (Vo) + at
qV
(3/2)nRdeltaT

42. voltage induced in a rod moving through a uniform magnetic field
J= Ft
qE
V = (Vo) + at
BLv

43. pressure
F/A
mV -m(Vo)
Columbs/second
FV

44. third kinematic
V^2=(Vo)^2 +2a*change in x
MC(deltaT)
k|Q|/r^2
frequency never changes for light problems

45. adibatic
(N2)/(N1)
no heat flow
sqrt(3KT/m)
joules/second

46. formula for impluse involving time
BLv
BA
J= Ft
.5KA^2

47. heat required to change temperature of a substance
VI
GM*M/(r^2)
MC(deltaT)
constant volume

48. forgotten power equation
2Pi * sqrt(l/g)
FV
h(Fo)
0

49. formula for charge stored in a capciator
(I^2)RT
Q=CV
(N2)/(N1)
qV

50. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
h/mv
J= Ft
no temp change