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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
(V^2)/R
dSintheta=mwavelength
1/2wavelength
opposite motion

2. formula for buoyant force
joules/second
AV=(A2)(V2)
roeVg
e=mc^2

3. formula for power with current and voltage
1/((1/C)+(1/C)..........)
KI/r
VI
V = (Vo) + at

4. force of friction
rF
(V^2)/R
(Fn)(mu)
E/B

5. new frequency of light as it enters a new substance
inelastic collision
elastic collision
frequency never changes for light problems
VI

6. formula to find the gauge pressure at the bottom of a pool
1/((1/C)+(1/C)..........)
(Wnet)/(Qin)
roegh
deltaU = deltaQ + deltaW

7. formula for efficiency of a heat engine using work out
L -LCostheta
.5mV^2 + .5KA^2
(Wnet)/(Qin)
qVB

8. formula for charge stored in a capciator
FV
Q=CV
opposite motion
joules/second

9. equation of continuity
joules/second
opposite motion
AV=(A2)(V2)
e=mc^2

10. type of collision where K is conserved
(Di)/(Do) or (Hi)/(Ho)
elastic collision
((Qin) -(Qout))/(Qin)
BLv

11. isothermal
-KA
inelastic collision
no temp change
sqrt(T/(m/))

12. voltage induced in a rod moving through a uniform magnetic field
BLv
pL/A
1/4wavelength
no heat flow

13. formula for period of a pendulum
dSintheta=mwavelength
no heat flow
2Pi * sqrt(l/g)
inelastic collision

14. the force on a charge moving parallel to a magnetic field
inelastic collision
no force (right hand rule)
rF
E/B

15. resistance of a wire
BLv
pL/A
GM*M/(r^2)
sqrt(3KT/m)

16. the electric force between two objects of charge Q
VI
perfectly inelastic collision
K |q||Q|/r^2
roeVg

17. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(V^2)/R
BA
rF
G M/((d/2)^2)

18. force a charge in a Bfield
2nt=mwavelength
qVB
(I^2)RT
(3/2)nRdeltaT

19. first kinematic
Q=CV
joules/second
sqrt(3KT/m)
V = (Vo) + at

20. electric potential a distance r from a charge
Joules/Columb
mgCostheta(mu)d
KQ/r
F/A

21. the force on a charge in an electric field
1/2wavelength
qrB/m
qE
(Fn)(mu)

22. formula relating voltage and electric field
2nt=mwavelength
e=mc^2
Ed=V
L -LCostheta

23. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
Ed=V
(I^2)RT
dSintheta=mwavelength

24. electric field in a distance r from a charge
k|Q|/r^2
Columbs/second
(3/2)nRdeltaT
L -LCostheta

25. snells law
(Wnet)/(Qin)
n(Cv)(deltaT)
nSintheta=nsintheta
no heat flow

26. energy of a photon if wavelength is known
elastic collision
perfectly inelastic collision
hc/wavelength
inelastic collision

27. velocity of an electrion as it exitws from the hole
V = (Vo) + at
qrB/m
Q=CV
Joules/Columb

28. formula for Carnot efficiency
.5KA^2
(No)(wavelength)=(Nn)(new wavelength)
((Th) -(Tl))/(Th)
m(v^2)/qvB

29. formula for impulse involving momentum
mV -m(Vo)
G M/((d/2)^2)
mgCostheta(mu)d
Joules/Columb

30. formula for the wavelength (debroglie wavelength) of a moving particle
qVB
qrB/m
no heat flow
h/mv

31. formula for torque
qVB
AV=(A2)(V2)
rF
1/((1/C)+(1/C)..........)

32. formula for critical angle
roeVg
(N2)/(N1)
V^2=(Vo)^2 +2a*change in x
h/mv

33. formula for impluse involving time
elastic collision
Joules/Columb
J= Ft
1/((1/C)+(1/C)..........)

34. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
K |q||Q|/r^2
m(v^2)/qvB
FV

35. what direction is friction?
(EMF)Rt/10
e=mc^2
opposite motion
perfectly inelastic collision

36. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
h/mv
VI
h(Fo)

37. adibatic
Q=CV
no heat flow
.5KA^2
F/A

38. formula for energy of a spring mass when spring is at maximum displacement
KI/r
.5KA^2
(Wnet)/(Qin)
0

39. the units of current other than amps
(No)(wavelength)=(Nn)(new wavelength)
Columbs/second
M(Lf)
BLv

40. formula for finding the momentum of a photon
h/wavelength
Joules/Columb
(I^2)R
no force (right hand rule)

41. total capacitance of capacitors in series
dSintheta=mwavelength
(Wnet)/(Qin)
qV
1/((1/C)+(1/C)..........)

42. formula for centripetal acceleration
(V^2)/r
joules/second
qE
frequency never changes for light problems

43. radius of curvature of a charged particle as it enters a uniform magnetic field
no temp change
(EMF)Rt/10
m(v^2)/qvB
Joules/Columb

44. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
Joules/Columb
pL/A
(EMF)Rt/10

45. heat during an isometric process
(V^2)/r
n(Cv)(deltaT)
GM*M/(r^2)
1/2wavelength

46. third kinematic
mgCostheta(mu)d
h/wavelength
delta x = (Vo)t + .5at^2
V^2=(Vo)^2 +2a*change in x

47. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
h/mv
BA
.5CV^2 or .5 Q^2/C or .5QV
.5mV^2 + .5KA^2

48. formula for change in internal energy in a cosnstat volume PV process
1/4wavelength
G M/((d/2)^2)
(3/2)nRdeltaT
dSintheta=mwavelength

49. heat required to melt a substance
mV -m(Vo)
(V^2)/R
M(Lf)
.5mV^2 + .5KA^2

50. magnification equation
dSintheta=mwavelength
2nt=mwavelength
J= Ft
(Di)/(Do) or (Hi)/(Ho)