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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 power with Voltage and resistance
qV
V+IR
dSintheta=mwavelength
(V^2)/R

2. formula for Carnot efficiency
BLv
((Th) -(Tl))/(Th)
.5mV^2 + .5KA^2
k|Q|/r^2

3. the units of power other than watts
delta x = (Vo)t + .5at^2
sqrt(T/(m/))
G M/((d/2)^2)
joules/second

4. energy stored in a capacitor
e=mc^2
nSintheta=nsintheta
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV

5. the force on a charge moving parallel to a magnetic field
Q=CV
0
no force (right hand rule)
MC(deltaT)

6. radius of curvature of a charged particle as it enters a uniform magnetic field
sqrt(3KT/m)
m(v^2)/qvB
no heat flow
(I^2)RT

7. forgotten power equation
GM*M/(r^2)
FV
E/B
joules/second

8. formula equating energy and mass
((Qin) -(Qout))/(Qin)
pL/A
net work = delta K
e=mc^2

9. voltage induced in a rod moving through a uniform magnetic field
BA
e=mc^2
BLv
deltaU = deltaQ + deltaW

10. EMF of a battery having internal resistance R
qVB
(N2)/(N1)
opposite motion
V+IR

11. units for voltage other than volts
h/wavelength
Joules/Columb
1/2wavelength
GM*M/(r^2)

12. first kinematic
m(v^2)/qvB
no heat flow
V = (Vo) + at
opposite motion

13. velocity of waves on a string if tension is known
mV -m(Vo)
joules/second
sqrt(T/(m/))
net work = delta K

14. equation of continuity
(Patm) + (Pgauge)
AV=(A2)(V2)
(N2)/(N1)
K |q||Q|/r^2

15. formula for the wavelength (debroglie wavelength) of a moving particle
Ed=V
h/mv
joules/second
no force (right hand rule)

16. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
K |q||Q|/r^2
elastic collision
0

17. electric potential a distance r from a charge
((Qin) -(Qout))/(Qin)
KQ/r
joules/second
n(Cv)(deltaT)

18. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
(Fn)(mu)
delta x = (Vo)t + .5at^2
inelastic collision

19. force of gravity between two objects of mass m
((Qin) -(Qout))/(Qin)
GM*M/(r^2)
(V^2)/R
(EMF)Rt/10

20. electric field in a distance r from a charge
VI
k|Q|/r^2
(No)(wavelength)=(Nn)(new wavelength)
no heat flow

21. force of frction on an incline
J= Ft
KQ/r
deltaU -deltaW
mgCostheta(mu)d

22. heat required to melt a substance
M(Lf)
constant pressure
KQ/r
roegh

23. what direction is friction?
(Di)/(Do) or (Hi)/(Ho)
e=mc^2
AV=(A2)(V2)
opposite motion

24. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
Columbs/second
E/B
V+IR
(3/2)nRdeltaT

25. formula for power with current and voltage
1/((1/C)+(1/C)..........)
no heat flow
m(v^2)/qvB
VI

26. formula for finding magnetic flux
opposite motion
(N2)/(N1)
sqrt(3KT/m)
BA

27. formula for period of a pendulum
dSintheta=mwavelength
n(Cv)(deltaT)
KI/r
2Pi * sqrt(l/g)

28. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
mgCostheta(mu)d
mV -m(Vo)
d/2

29. isobaric
perfectly inelastic collision
constant pressure
h/mv
J= Ft

30. formula for impluse involving time
J= Ft
qE
mgCostheta(mu)d
M(Lf)

31. new wavelength of light as it enters a new substance
(Wnet)/(Qin)
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems
MC(deltaT)

32. isometric
constant volume
(hc/wavelength)=h(Fo) +(Vs)
qE
1/4wavelength

33. formula for finding the momentum of a photon
G M/((d/2)^2)
frequency never changes for light problems
elastic collision
h/wavelength

34. type of collision where K is conserved
(Patm) + (Pgauge)
E/B
nSintheta=nsintheta
elastic collision

35. force of friction
constant pressure
.5mV^2 + .5KA^2
delta x = (Vo)t + .5at^2
(Fn)(mu)

36. the units of current other than amps
Columbs/second
(V^2)/R
delta x = (Vo)t + .5at^2
FV

37. force a charge in a Bfield
constant volume
qVB
qV
(Patm) + (Pgauge)

38. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
0
F/A
n(Cv)(deltaT)

39. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
h/mv
no temp change
nSintheta=nsintheta

40. formula to find the absoluate pressure at the bottom of a pool
-KA
joules/second
(Patm) + (Pgauge)
GM*M/(r^2)

41. total capacitance of capacitors in series
no temp change
1/((1/C)+(1/C)..........)
(Di)/(Do) or (Hi)/(Ho)
delta x = (Vo)t + .5at^2

42. work energy theorum
qVB
KI/r
GM*M/(r^2)
net work = delta K

43. pressure
(No)(wavelength)=(Nn)(new wavelength)
.5mV^2 + .5KA^2
F/A
elastic collision

44. heat required to change temperature of a substance
MC(deltaT)
V^2=(Vo)^2 +2a*change in x
roegh
Ed=V

45. isothermal
V+IR
(hc/wavelength)=h(Fo) +(Vs)
no temp change
E/B

46. formula for power with current and resistance
frequency never changes for light problems
K |q||Q|/r^2
joules/second
(I^2)R

47. formula for energy of a spring mass when spring is at maximum displacement
K |q||Q|/r^2
hc/wavelength
.5KA^2
deltaU = deltaQ + deltaW

48. energy of a photon if wavelength is known
qE
h/mv
pL/A
hc/wavelength

49. focal length of a mirror with radius d
d/2
-KA
mV -m(Vo)
(V^2)/r

50. formula for critical angle
(N2)/(N1)
(I^2)R
MC(deltaT)
constant pressure