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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 the wavelength (debroglie wavelength) of a moving particle
qVB
G M/((d/2)^2)
(V^2)/r
h/mv

2. the force on a charge in an electric field
qE
(No)(wavelength)=(Nn)(new wavelength)
BLv
(V^2)/R

3. formula for constructive interference in a thin membrane with two phase changes
MC(deltaT)
((Qin) -(Qout))/(Qin)
2nt=mwavelength
(I^2)RT

4. formula relating voltage and electric field
(1/Do) + (1/Di) = (1/f)
hc/wavelength
e=mc^2
Ed=V

5. first kinematic
AV=(A2)(V2)
V = (Vo) + at
VI
qVB

6. heat required to melt a substance
qE
mV -m(Vo)
M(Lf)
V^2=(Vo)^2 +2a*change in x

7. formula to find the absoluate pressure at the bottom of a pool
1/2wavelength
h/mv
(Di)/(Do) or (Hi)/(Ho)
(Patm) + (Pgauge)

8. force of gravity between two objects of mass m
(V^2)/R
e=mc^2
net work = delta K
GM*M/(r^2)

9. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
roegh
1/4wavelength
Columbs/second

10. force of frction on an incline
mgCostheta(mu)d
no temp change
(V^2)/R
Q=CV

11. isothermal
E/B
G M/((d/2)^2)
M(Lf)
no temp change

12. units for voltage other than volts
1/2wavelength
opposite motion
(I^2)R
Joules/Columb

13. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(V^2)/r
(I^2)R
h(Fo)
(EMF)Rt/10

14. electric field in a distance r from a charge
k|Q|/r^2
deltaU -deltaW
(1/Do) + (1/Di) = (1/f)
M(Lf)

15. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
no heat flow
qVB
inelastic collision

16. type of collision where K is conserved
qE
((Th) -(Tl))/(Th)
.5KA^2
elastic collision

17. formula to find the gauge pressure at the bottom of a pool
2Pi * sqrt(l/g)
roegh
opposite motion
no force (right hand rule)

18. formula for charge stored in a capciator
(Wnet)/(Qin)
V = (Vo) + at
Q=CV
frequency never changes for light problems

19. equation for the first law of thermodynamics
Columbs/second
(N2)/(N1)
elastic collision
deltaU = deltaQ + deltaW

20. heat required to change temperature of a substance
M(Lf)
MC(deltaT)
roegh
delta x = (Vo)t + .5at^2

21. force of friction
(Fn)(mu)
M(Lf)
E/B
(3/2)nRdeltaT

22. the force on a charge moving parallel to a magnetic field
K |q||Q|/r^2
FV
(Di)/(Do) or (Hi)/(Ho)
no force (right hand rule)

23. adibatic
no heat flow
deltaU = deltaQ + deltaW
G M/((d/2)^2)
(Patm) + (Pgauge)

24. radius of curvature of a charged particle as it enters a uniform magnetic field
no force (right hand rule)
m(v^2)/qvB
qE
((Th) -(Tl))/(Th)

25. work energy theorum
opposite motion
no force (right hand rule)
E/B
net work = delta K

26. natural frequency of a closed tube of length L
1/4wavelength
roegh
hc/wavelength
.5CV^2 or .5 Q^2/C or .5QV

27. formula for power with current and voltage
0
sqrt(3KT/m)
VI
qVB

28. forgotten power equation
2Pi * sqrt(l/g)
FV
MC(deltaT)
KQ/r

29. hooke's law force of a spring
delta x = (Vo)t + .5at^2
E/B
-KA
KI/r

30. what direction is friction?
opposite motion
Joules/Columb
V+IR
FV

31. new wavelength of light as it enters a new substance
no heat flow
(No)(wavelength)=(Nn)(new wavelength)
.5mV^2 + .5KA^2
(V^2)/r

32. formula for change in internal energy in a cosnstat volume PV process
frequency never changes for light problems
(3/2)nRdeltaT
(I^2)RT
delta x = (Vo)t + .5at^2

33. resistance of a wire
pL/A
V = (Vo) + at
1/2wavelength
m(v^2)/qvB

34. electric potential a distance r from a charge
KQ/r
qE
Q=CV
GM*M/(r^2)

35. formula for period of a pendulum
.5KA^2
2Pi * sqrt(l/g)
qE
(No)(wavelength)=(Nn)(new wavelength)

36. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
h/wavelength
.5CV^2 or .5 Q^2/C or .5QV
V+IR

37. natural frequency of an open tube of length L
1/2wavelength
.5CV^2 or .5 Q^2/C or .5QV
hc/wavelength
inelastic collision

38. velocity of waves on a string if tension is known
mgCostheta(mu)d
F/A
(No)(wavelength)=(Nn)(new wavelength)
sqrt(T/(m/))

39. formula for finding the magnetic field a distance r from a current carrying wire
VI
KI/r
qV
BLv

40. formula for Carnot efficiency
.5CV^2 or .5 Q^2/C or .5QV
((Th) -(Tl))/(Th)
L -LCostheta
BA

41. formula for centripetal acceleration
opposite motion
(V^2)/r
h(Fo)
.5KA^2

42. magnification equation
Joules/Columb
(Di)/(Do) or (Hi)/(Ho)
inelastic collision
2Pi * sqrt(l/g)

43. heat during an isometric process
(3/2)nRdeltaT
inelastic collision
n(Cv)(deltaT)
mV -m(Vo)

44. heat during a cyclic process (net heat)
(I^2)R
roegh
constant pressure
deltaU -deltaW

45. the electric force between two objects of charge Q
BLv
sqrt(T/(m/))
K |q||Q|/r^2
e=mc^2

46. formula for torque
(I^2)R
rF
2nt=mwavelength
FV

47. the units of current other than amps
sqrt(T/(m/))
(Patm) + (Pgauge)
(I^2)RT
Columbs/second

48. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
1/2wavelength
(V^2)/R
h(Fo)

49. third kinematic
V^2=(Vo)^2 +2a*change in x
no force (right hand rule)
d/2
(N2)/(N1)

50. isobaric
constant pressure
rF
sqrt(3KT/m)
1/4wavelength