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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. formula for buoyant force
(V^2)/R
(Fn)(mu)
roeVg
(Patm) + (Pgauge)

2. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
deltaU = deltaQ + deltaW
V^2=(Vo)^2 +2a*change in x
qE

3. new wavelength of light as it enters a new substance
joules/second
(No)(wavelength)=(Nn)(new wavelength)
G M/((d/2)^2)
2Pi * sqrt(l/g)

4. formula to find the gauge pressure at the bottom of a pool
h/mv
hc/wavelength
pL/A
roegh

5. adibatic
AV=(A2)(V2)
m(v^2)/qvB
V+IR
no heat flow

6. work energy theorum
e=mc^2
no force (right hand rule)
roeVg
net work = delta K

7. formula relating voltage and electric field
Ed=V
J= Ft
(hc/wavelength)=h(Fo) +(Vs)
rF

8. force a charge in a Bfield
qVB
-KA
E/B
qrB/m

9. voltage induced in a rod moving through a uniform magnetic field
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x
BLv
BA

10. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
2Pi * sqrt(l/g)
FV
((Th) -(Tl))/(Th)

11. type of collision where K is conserved
(hc/wavelength)=h(Fo) +(Vs)
elastic collision
K |q||Q|/r^2
hc/wavelength

12. velocity of a molecule of gas
h(Fo)
V = (Vo) + at
sqrt(3KT/m)
KQ/r

13. formula for critical angle
(N2)/(N1)
E/B
((Qin) -(Qout))/(Qin)
1/((1/C)+(1/C)..........)

14. formula for change in internal energy in a cosnstat volume PV process
(Di)/(Do) or (Hi)/(Ho)
(3/2)nRdeltaT
FV
(Patm) + (Pgauge)

15. formula for height of the block (at the start of a pendulum string) in terms of theta and L
h/wavelength
nSintheta=nsintheta
L -LCostheta
KQ/r

16. 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
frequency never changes for light problems
Columbs/second
FV

17. formula for power with current and resistance
(I^2)R
(Wnet)/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
(I^2)RT

18. formula for charge stored in a capciator
Q=CV
net work = delta K
mV -m(Vo)
-KA

19. formula for torque
0
(1/Do) + (1/Di) = (1/f)
rF
(V^2)/R

20. formula for centripetal acceleration
KQ/r
(V^2)/r
qrB/m
roeVg

21. the units of power other than watts
joules/second
constant volume
m(v^2)/qvB
(No)(wavelength)=(Nn)(new wavelength)

22. radius of curvature of a charged particle as it enters a uniform magnetic field
opposite motion
pL/A
(Wnet)/(Qin)
m(v^2)/qvB

23. second kinematic
delta x = (Vo)t + .5at^2
n(Cv)(deltaT)
m(v^2)/qvB
FV

24. formula for finding the work function of a metal if the cutoff frequency is known
k|Q|/r^2
h(Fo)
V+IR
(EMF)Rt/10

25. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
pL/A
2nt=mwavelength
net work = delta K

26. formula for power with Voltage and resistance
1/4wavelength
Columbs/second
(Patm) + (Pgauge)
(V^2)/R

27. formula equating energy and mass
(Wnet)/(Qin)
e=mc^2
nSintheta=nsintheta
BA

28. heat required to melt a substance
(Fn)(mu)
(1/Do) + (1/Di) = (1/f)
constant volume
M(Lf)

29. resistance of a wire
Ed=V
2nt=mwavelength
pL/A
((Qin) -(Qout))/(Qin)

30. pressure
mV -m(Vo)
F/A
KI/r
(Fn)(mu)

31. forgotten power equation
e=mc^2
1/4wavelength
GM*M/(r^2)
FV

32. formula for constructive interference in a thin membrane with two phase changes
0
2nt=mwavelength
(3/2)nRdeltaT
e=mc^2

33. force of friction
(Fn)(mu)
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)
qrB/m

34. force of frction on an incline
K |q||Q|/r^2
mgCostheta(mu)d
no temp change
V^2=(Vo)^2 +2a*change in x

35. isometric
L -LCostheta
h/wavelength
-KA
constant volume

36. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
sqrt(T/(m/))
mV -m(Vo)
h/mv
(hc/wavelength)=h(Fo) +(Vs)

37. formula for power with current and voltage
AV=(A2)(V2)
h/wavelength
VI
h(Fo)

38. heat during an isometric process
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
h/mv
constant volume

39. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
frequency never changes for light problems
(I^2)RT
h(Fo)

40. electric field in a distance r from a charge
E/B
V+IR
k|Q|/r^2
BLv

41. natural frequency of a closed tube of length L
deltaU = deltaQ + deltaW
1/4wavelength
no heat flow
V = (Vo) + at

42. third kinematic
V^2=(Vo)^2 +2a*change in x
no temp change
qV
((Qin) -(Qout))/(Qin)

43. change in internal energy during a cyclic process
(I^2)RT
(hc/wavelength)=h(Fo) +(Vs)
mV -m(Vo)
0

44. focal length of a mirror with radius d
2nt=mwavelength
d/2
nSintheta=nsintheta
FV

45. hooke's law force of a spring
L -LCostheta
Joules/Columb
-KA
V = (Vo) + at

46. new frequency of light as it enters a new substance
rF
frequency never changes for light problems
KQ/r
qV

47. the electric force between two objects of charge Q
VI
no force (right hand rule)
deltaU = deltaQ + deltaW
K |q||Q|/r^2

48. formula for finding the magnetic field a distance r from a current carrying wire
((Qin) -(Qout))/(Qin)
(No)(wavelength)=(Nn)(new wavelength)
KI/r
1/2wavelength

49. formula for finding the momentum of a photon
elastic collision
qE
MC(deltaT)
h/wavelength

50. first kinematic
0
V = (Vo) + at
deltaU -deltaW
d/2