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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. force a charge in a Bfield
qVB
(Di)/(Do) or (Hi)/(Ho)
(V^2)/R
2nt=mwavelength

2. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
opposite motion
qVB
G M/((d/2)^2)
F/A

3. radius of curvature of a charged particle as it enters a uniform magnetic field
(hc/wavelength)=h(Fo) +(Vs)
Ed=V
m(v^2)/qvB
n(Cv)(deltaT)

4. heat during a cyclic process (net heat)
.5KA^2
(1/Do) + (1/Di) = (1/f)
deltaU -deltaW
qV

5. formula for change in internal energy in a cosnstat volume PV process
no force (right hand rule)
k|Q|/r^2
(Patm) + (Pgauge)
(3/2)nRdeltaT

6. type of collision where K is conserved
0
(Patm) + (Pgauge)
elastic collision
m(v^2)/qvB

7. velocity of a molecule of gas
h(Fo)
sqrt(3KT/m)
deltaU = deltaQ + deltaW
elastic collision

8. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
sqrt(3KT/m)
constant volume
1/2wavelength
E/B

9. resistance of a wire
0
net work = delta K
pL/A
FV

10. focal length of a mirror with radius d
Columbs/second
perfectly inelastic collision
d/2
AV=(A2)(V2)

11. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
mV -m(Vo)
no force (right hand rule)
Ed=V

12. first kinematic
Joules/Columb
2Pi * sqrt(l/g)
V = (Vo) + at
pL/A

13. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
GM*M/(r^2)
deltaU = deltaQ + deltaW
no force (right hand rule)

14. formula for impulse involving momentum
1/4wavelength
mV -m(Vo)
(V^2)/R
BA

15. isobaric
mV -m(Vo)
hc/wavelength
(V^2)/R
constant pressure

16. third kinematic
frequency never changes for light problems
net work = delta K
V^2=(Vo)^2 +2a*change in x
V+IR

17. snells law
L -LCostheta
qE
VI
nSintheta=nsintheta

18. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(Wnet)/(Qin)
.5mV^2 + .5KA^2
1/4wavelength
GM*M/(r^2)

19. formula for constructive interference in a thin membrane with two phase changes
constant volume
sqrt(3KT/m)
2nt=mwavelength
(V^2)/R

20. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
F/A
V+IR
m(v^2)/qvB

21. formula relating voltage and electric field
(1/Do) + (1/Di) = (1/f)
mgCostheta(mu)d
qV
Ed=V

22. heat required to melt a substance
.5mV^2 + .5KA^2
(V^2)/R
M(Lf)
dSintheta=mwavelength

23. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
joules/second
(hc/wavelength)=h(Fo) +(Vs)
1/4wavelength
deltaU -deltaW

24. heat required to change temperature of a substance
E/B
MC(deltaT)
KI/r
Joules/Columb

25. formula for power with Voltage and resistance
G M/((d/2)^2)
M(Lf)
(EMF)Rt/10
(V^2)/R

26. 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/((1/C)+(1/C)..........)
no force (right hand rule)
V = (Vo) + at
(I^2)RT

27. change in internal energy during a cyclic process
0
qrB/m
no heat flow
frequency never changes for light problems

28. formula for torque
.5KA^2
G M/((d/2)^2)
rF
deltaU -deltaW

29. formula for finding the work function of a metal if the cutoff frequency is known
(EMF)Rt/10
h(Fo)
no temp change
mgCostheta(mu)d

30. the units of current other than amps
net work = delta K
(Wnet)/(Qin)
joules/second
Columbs/second

31. total capacitance of capacitors in series
AV=(A2)(V2)
h/wavelength
1/((1/C)+(1/C)..........)
roegh

32. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qVB
constant volume
L -LCostheta
G M/((d/2)^2)

33. isometric
constant volume
frequency never changes for light problems
nSintheta=nsintheta
F/A

34. units for voltage other than volts
2Pi * sqrt(l/g)
VI
V^2=(Vo)^2 +2a*change in x
Joules/Columb

35. equation of continuity
(Wnet)/(Qin)
AV=(A2)(V2)
0
no heat flow

36. formula for energy of a spring mass when spring is at maximum displacement
(1/Do) + (1/Di) = (1/f)
net work = delta K
.5KA^2
(N2)/(N1)

37. formula for power with current and resistance
constant volume
J= Ft
1/4wavelength
(I^2)R

38. adibatic
no heat flow
(Wnet)/(Qin)
Columbs/second
joules/second

39. formula for buoyant force
0
(hc/wavelength)=h(Fo) +(Vs)
roeVg
1/4wavelength

40. voltage induced in a rod moving through a uniform magnetic field
J= Ft
m(v^2)/qvB
BLv
0

41. force of gravity between two objects of mass m
h/mv
E/B
GM*M/(r^2)
1/2wavelength

42. formula for charge stored in a capciator
G M/((d/2)^2)
Q=CV
pL/A
M(Lf)

43. natural frequency of an open tube of length L
deltaU -deltaW
Ed=V
1/2wavelength
frequency never changes for light problems

44. formula to find the gauge pressure at the bottom of a pool
Q=CV
roegh
M(Lf)
BA

45. natural frequency of a closed tube of length L
Ed=V
(hc/wavelength)=h(Fo) +(Vs)
V+IR
1/4wavelength

46. second kinematic
delta x = (Vo)t + .5at^2
perfectly inelastic collision
KI/r
roegh

47. velocity of waves on a string if tension is known
n(Cv)(deltaT)
2nt=mwavelength
sqrt(T/(m/))
dSintheta=mwavelength

48. new frequency of light as it enters a new substance
frequency never changes for light problems
L -LCostheta
E/B
mV -m(Vo)

49. formula for impluse involving time
inelastic collision
J= Ft
(Di)/(Do) or (Hi)/(Ho)
V = (Vo) + at

50. type of collision where K is not conserved
nSintheta=nsintheta
inelastic collision
MC(deltaT)
V = (Vo) + at