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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 the wavelength (debroglie wavelength) of a moving particle
h/mv
((Th) -(Tl))/(Th)
Ed=V
L -LCostheta

2. formula for constructive interference in a diffraction grating
Columbs/second
dSintheta=mwavelength
L -LCostheta
BLv

3. energy of a photon if wavelength is known
(Di)/(Do) or (Hi)/(Ho)
pL/A
hc/wavelength
Ed=V

4. formula for impluse involving time
J= Ft
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
GM*M/(r^2)

5. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
0
.5mV^2 + .5KA^2
Joules/Columb
joules/second

6. lens/mirror equation
MC(deltaT)
((Qin) -(Qout))/(Qin)
(1/Do) + (1/Di) = (1/f)
Q=CV

7. isobaric
n(Cv)(deltaT)
(V^2)/r
constant pressure
roegh

8. electric field in a distance r from a charge
AV=(A2)(V2)
(hc/wavelength)=h(Fo) +(Vs)
k|Q|/r^2
h/mv

9. formula for charge stored in a capciator
inelastic collision
mV -m(Vo)
(I^2)R
Q=CV

10. formula for constructive interference in a thin membrane with two phase changes
no force (right hand rule)
Columbs/second
Q=CV
2nt=mwavelength

11. formula for Carnot efficiency
(3/2)nRdeltaT
((Th) -(Tl))/(Th)
Ed=V
no heat flow

12. formula for finding the momentum of a photon
h/wavelength
(hc/wavelength)=h(Fo) +(Vs)
(1/Do) + (1/Di) = (1/f)
.5CV^2 or .5 Q^2/C or .5QV

13. equation of continuity
AV=(A2)(V2)
VI
K |q||Q|/r^2
FV

14. pressure
n(Cv)(deltaT)
perfectly inelastic collision
F/A
M(Lf)

15. formula relating voltage and electric field
rF
dSintheta=mwavelength
Ed=V
no force (right hand rule)

16. formula for efficiency not using work out
GM*M/(r^2)
mgCostheta(mu)d
J= Ft
((Qin) -(Qout))/(Qin)

17. second kinematic
.5KA^2
no heat flow
FV
delta x = (Vo)t + .5at^2

18. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
qV
1/4wavelength
roegh

19. natural frequency of an open tube of length L
no temp change
K |q||Q|/r^2
1/2wavelength
qVB

20. force of friction
M(Lf)
Columbs/second
Joules/Columb
(Fn)(mu)

21. formula for change in internal energy in a cosnstat volume PV process
joules/second
(3/2)nRdeltaT
frequency never changes for light problems
deltaU = deltaQ + deltaW

22. heat during an isometric process
n(Cv)(deltaT)
d/2
2nt=mwavelength
deltaU = deltaQ + deltaW

23. formula for finding the work function of a metal if the cutoff frequency is known
rF
L -LCostheta
roegh
h(Fo)

24. formula for buoyant force
(Fn)(mu)
K |q||Q|/r^2
roeVg
roegh

25. heat during a cyclic process (net heat)
hc/wavelength
deltaU -deltaW
BA
qVB

26. formula for impulse involving momentum
.5mV^2 + .5KA^2
m(v^2)/qvB
mV -m(Vo)
(I^2)R

27. velocity of waves on a string if tension is known
deltaU -deltaW
sqrt(T/(m/))
KI/r
-KA

28. formula for power with current and voltage
(No)(wavelength)=(Nn)(new wavelength)
(N2)/(N1)
-KA
VI

29. formula for height of the block (at the start of a pendulum string) in terms of theta and L
.5CV^2 or .5 Q^2/C or .5QV
L -LCostheta
Ed=V
no force (right hand rule)

30. formula for torque
rF
elastic collision
joules/second
AV=(A2)(V2)

31. formula for critical angle
K |q||Q|/r^2
(N2)/(N1)
no force (right hand rule)
pL/A

32. EMF of a battery having internal resistance R
(V^2)/R
(Patm) + (Pgauge)
sqrt(3KT/m)
V+IR

33. formula for power with current and resistance
0
((Th) -(Tl))/(Th)
no temp change
(I^2)R

34. heat required to change temperature of a substance
e=mc^2
MC(deltaT)
Joules/Columb
(Wnet)/(Qin)

35. force of frction on an incline
h(Fo)
qE
mgCostheta(mu)d
roegh

36. isometric
(Fn)(mu)
h/wavelength
sqrt(3KT/m)
constant volume

37. forgotten power equation
FV
2Pi * sqrt(l/g)
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta

38. total capacitance of capacitors in series
d/2
1/((1/C)+(1/C)..........)
(hc/wavelength)=h(Fo) +(Vs)
constant pressure

39. formula for power with Voltage and resistance
h/wavelength
(Wnet)/(Qin)
no temp change
(V^2)/R

40. snells law
(Patm) + (Pgauge)
VI
Ed=V
nSintheta=nsintheta

41. units for voltage other than volts
(N2)/(N1)
BA
Joules/Columb
(Di)/(Do) or (Hi)/(Ho)

42. formula for centripetal acceleration
(No)(wavelength)=(Nn)(new wavelength)
d/2
(V^2)/r
e=mc^2

43. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
k|Q|/r^2
(Fn)(mu)
deltaU = deltaQ + deltaW

44. formula for energy of a spring mass when spring is at maximum displacement
opposite motion
AV=(A2)(V2)
((Th) -(Tl))/(Th)
.5KA^2

45. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
no force (right hand rule)
BA
G M/((d/2)^2)
GM*M/(r^2)

46. voltage induced in a rod moving through a uniform magnetic field
((Qin) -(Qout))/(Qin)
V^2=(Vo)^2 +2a*change in x
BLv
2Pi * sqrt(l/g)

47. force a charge in a Bfield
qVB
hc/wavelength
M(Lf)
(Patm) + (Pgauge)

48. the units of power other than watts
(Di)/(Do) or (Hi)/(Ho)
2nt=mwavelength
joules/second
GM*M/(r^2)

49. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
KI/r
(Di)/(Do) or (Hi)/(Ho)
qV
(No)(wavelength)=(Nn)(new wavelength)

50. velocity of a molecule of gas
1/((1/C)+(1/C)..........)
sqrt(3KT/m)
qV
(1/Do) + (1/Di) = (1/f)