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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. new wavelength of light as it enters a new substance
(N2)/(N1)
(No)(wavelength)=(Nn)(new wavelength)
(I^2)R
G M/((d/2)^2)

2. adibatic
sqrt(3KT/m)
net work = delta K
n(Cv)(deltaT)
no heat flow

3. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
1/((1/C)+(1/C)..........)
Columbs/second
V^2=(Vo)^2 +2a*change in x

4. formula for power with current and resistance
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV
qV
(I^2)R

5. formula to find the gauge pressure at the bottom of a pool
h(Fo)
roegh
constant pressure
2nt=mwavelength

6. type of collision where K is conserved
elastic collision
BA
(N2)/(N1)
.5KA^2

7. forgotten power equation
delta x = (Vo)t + .5at^2
(Wnet)/(Qin)
FV
GM*M/(r^2)

8. velocity of an electrion as it exitws from the hole
n(Cv)(deltaT)
qrB/m
(1/Do) + (1/Di) = (1/f)
m(v^2)/qvB

9. energy stored in a capacitor
1/4wavelength
.5CV^2 or .5 Q^2/C or .5QV
deltaU -deltaW
roegh

10. energy of a photon if wavelength is known
hc/wavelength
Ed=V
(Wnet)/(Qin)
delta x = (Vo)t + .5at^2

11. the force on a charge in an electric field
(EMF)Rt/10
qE
1/((1/C)+(1/C)..........)
-KA

12. units for voltage other than volts
KQ/r
V+IR
Joules/Columb
2Pi * sqrt(l/g)

13. formula for power with Voltage and resistance
no temp change
2Pi * sqrt(l/g)
M(Lf)
(V^2)/R

14. formula for constructive interference in a thin membrane with two phase changes
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
no heat flow
2nt=mwavelength

15. isobaric
deltaU = deltaQ + deltaW
GM*M/(r^2)
constant pressure
qE

16. formula for efficiency not using work out
n(Cv)(deltaT)
((Qin) -(Qout))/(Qin)
qV
BLv

17. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
mgCostheta(mu)d
(V^2)/r
qV
no force (right hand rule)

18. second kinematic
delta x = (Vo)t + .5at^2
(V^2)/r
joules/second
qV

19. first kinematic
delta x = (Vo)t + .5at^2
pL/A
V = (Vo) + at
perfectly inelastic collision

20. formula for power with current and voltage
VI
((Th) -(Tl))/(Th)
mgCostheta(mu)d
sqrt(T/(m/))

21. force a charge in a Bfield
(Patm) + (Pgauge)
k|Q|/r^2
rF
qVB

22. equation for the first law of thermodynamics
(I^2)R
2Pi * sqrt(l/g)
frequency never changes for light problems
deltaU = deltaQ + deltaW

23. formula for charge stored in a capciator
hc/wavelength
roegh
Q=CV
no heat flow

24. formula for change in internal energy in a cosnstat volume PV process
1/2wavelength
GM*M/(r^2)
rF
(3/2)nRdeltaT

25. total capacitance of capacitors in series
h/mv
1/((1/C)+(1/C)..........)
constant volume
(Wnet)/(Qin)

26. formula for finding the momentum of a photon
0
h/wavelength
(V^2)/r
sqrt(3KT/m)

27. EMF of a battery having internal resistance R
V+IR
pL/A
mV -m(Vo)
mgCostheta(mu)d

28. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
1/4wavelength
constant volume
no temp change
(I^2)RT

29. what direction is friction?
2nt=mwavelength
h/wavelength
K |q||Q|/r^2
opposite motion

30. formula for Carnot efficiency
Joules/Columb
(V^2)/r
n(Cv)(deltaT)
((Th) -(Tl))/(Th)

31. electric field in a distance r from a charge
1/2wavelength
k|Q|/r^2
-KA
M(Lf)

32. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
mV -m(Vo)
.5mV^2 + .5KA^2
qrB/m

33. formula for centripetal acceleration
KQ/r
Q=CV
(V^2)/r
(No)(wavelength)=(Nn)(new wavelength)

34. formula for energy of a spring mass when spring is at maximum displacement
V = (Vo) + at
.5KA^2
pL/A
qrB/m

35. formula for the wavelength (debroglie wavelength) of a moving particle
n(Cv)(deltaT)
J= Ft
VI
h/mv

36. velocity of waves on a string if tension is known
.5KA^2
2Pi * sqrt(l/g)
sqrt(T/(m/))
Joules/Columb

37. third kinematic
(V^2)/r
no temp change
V^2=(Vo)^2 +2a*change in x
net work = delta K

38. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(hc/wavelength)=h(Fo) +(Vs)
net work = delta K
E/B
MC(deltaT)

39. force of frction on an incline
2nt=mwavelength
roeVg
mgCostheta(mu)d
(I^2)RT

40. the units of current other than amps
mgCostheta(mu)d
Columbs/second
opposite motion
(I^2)R

41. resistance of a wire
(Fn)(mu)
(I^2)R
pL/A
KI/r

42. new frequency of light as it enters a new substance
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
joules/second
KI/r

43. hooke's law force of a spring
-KA
h/wavelength
k|Q|/r^2
qV

44. formula equating energy and mass
1/4wavelength
2Pi * sqrt(l/g)
e=mc^2
(EMF)Rt/10

45. radius of curvature of a charged particle as it enters a uniform magnetic field
V+IR
(Fn)(mu)
m(v^2)/qvB
0

46. formula for efficiency of a heat engine using work out
GM*M/(r^2)
(Wnet)/(Qin)
KI/r
V = (Vo) + at

47. heat required to melt a substance
constant volume
perfectly inelastic collision
deltaU -deltaW
M(Lf)

48. formula for period of a pendulum
hc/wavelength
2Pi * sqrt(l/g)
(1/Do) + (1/Di) = (1/f)
k|Q|/r^2

49. velocity of a molecule of gas
sqrt(3KT/m)
(hc/wavelength)=h(Fo) +(Vs)
-KA
KI/r

50. formula for finding the work function of a metal if the cutoff frequency is known
h/wavelength
h(Fo)
sqrt(T/(m/))
Columbs/second