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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 charge stored in a capciator
joules/second
(Wnet)/(Qin)
nSintheta=nsintheta
Q=CV

2. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
qVB
F/A
Ed=V
(hc/wavelength)=h(Fo) +(Vs)

3. lens/mirror equation
MC(deltaT)
J= Ft
((Qin) -(Qout))/(Qin)
(1/Do) + (1/Di) = (1/f)

4. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
MC(deltaT)
h/mv
roeVg

5. formula for torque
qV
rF
h/mv
inelastic collision

6. natural frequency of an open tube of length L
1/2wavelength
opposite motion
elastic collision
MC(deltaT)

7. the units of power other than watts
h/mv
sqrt(T/(m/))
joules/second
(Fn)(mu)

8. focal length of a mirror with radius d
opposite motion
d/2
frequency never changes for light problems
dSintheta=mwavelength

9. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
roegh
.5mV^2 + .5KA^2
AV=(A2)(V2)
VI

10. energy stored in a capacitor
qVB
Ed=V
(Patm) + (Pgauge)
.5CV^2 or .5 Q^2/C or .5QV

11. force of frction on an incline
VI
2nt=mwavelength
.5CV^2 or .5 Q^2/C or .5QV
mgCostheta(mu)d

12. EMF of a battery having internal resistance R
sqrt(T/(m/))
roeVg
deltaU = deltaQ + deltaW
V+IR

13. formula for the wavelength (debroglie wavelength) of a moving particle
2nt=mwavelength
Columbs/second
.5KA^2
h/mv

14. isometric
net work = delta K
(N2)/(N1)
constant volume
(V^2)/R

15. change in internal energy during a cyclic process
0
VI
no temp change
pL/A

16. force of friction
V^2=(Vo)^2 +2a*change in x
1/2wavelength
(Fn)(mu)
m(v^2)/qvB

17. force a charge in a Bfield
Ed=V
qVB
frequency never changes for light problems
(V^2)/r

18. natural frequency of a closed tube of length L
1/4wavelength
sqrt(3KT/m)
sqrt(T/(m/))
opposite motion

19. heat during a cyclic process (net heat)
no temp change
deltaU -deltaW
(I^2)RT
qrB/m

20. formula for efficiency of a heat engine using work out
.5KA^2
(Wnet)/(Qin)
(Di)/(Do) or (Hi)/(Ho)
deltaU = deltaQ + deltaW

21. formula for energy of a spring mass when spring is at maximum displacement
L -LCostheta
1/((1/C)+(1/C)..........)
(Fn)(mu)
.5KA^2

22. formula for impulse involving momentum
frequency never changes for light problems
BA
mV -m(Vo)
(Di)/(Do) or (Hi)/(Ho)

23. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
sqrt(3KT/m)
FV
k|Q|/r^2

24. type of collision where K is not conserved
mV -m(Vo)
qV
inelastic collision
frequency never changes for light problems

25. new frequency of light as it enters a new substance
frequency never changes for light problems
(Fn)(mu)
(hc/wavelength)=h(Fo) +(Vs)
(Wnet)/(Qin)

26. total capacitance of capacitors in series
F/A
inelastic collision
1/((1/C)+(1/C)..........)
(Patm) + (Pgauge)

27. formula relating voltage and electric field
(1/Do) + (1/Di) = (1/f)
Columbs/second
Ed=V
(Patm) + (Pgauge)

28. formula for critical angle
(N2)/(N1)
mV -m(Vo)
delta x = (Vo)t + .5at^2
joules/second

29. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
roeVg
1/2wavelength
(Fn)(mu)

30. velocity of an electrion as it exitws from the hole
V+IR
qrB/m
.5mV^2 + .5KA^2
m(v^2)/qvB

31. voltage induced in a rod moving through a uniform magnetic field
.5mV^2 + .5KA^2
BLv
1/4wavelength
deltaU = deltaQ + deltaW

32. velocity of a molecule of gas
sqrt(3KT/m)
-KA
G M/((d/2)^2)
h/wavelength

33. formula for centripetal acceleration
1/4wavelength
(V^2)/r
inelastic collision
elastic collision

34. isothermal
K |q||Q|/r^2
no heat flow
m(v^2)/qvB
no temp change

35. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
((Th) -(Tl))/(Th)
qV
VI
elastic collision

36. third kinematic
V^2=(Vo)^2 +2a*change in x
no force (right hand rule)
opposite motion
no temp change

37. formula for efficiency not using work out
roeVg
J= Ft
sqrt(3KT/m)
((Qin) -(Qout))/(Qin)

38. adibatic
joules/second
no heat flow
qVB
1/((1/C)+(1/C)..........)

39. heat required to melt a substance
delta x = (Vo)t + .5at^2
M(Lf)
joules/second
Joules/Columb

40. formula equating energy and mass
qE
(Wnet)/(Qin)
e=mc^2
h/wavelength

41. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
qVB
K |q||Q|/r^2
no temp change

42. type of collision where K is conserved
1/((1/C)+(1/C)..........)
elastic collision
M(Lf)
constant volume

43. formula for power with Voltage and resistance
net work = delta K
dSintheta=mwavelength
joules/second
(V^2)/R

44. equation of continuity
BLv
constant volume
AV=(A2)(V2)
no force (right hand rule)

45. pressure
F/A
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)
roegh

46. isobaric
no force (right hand rule)
e=mc^2
constant pressure
E/B

47. electric potential a distance r from a charge
constant pressure
KQ/r
(No)(wavelength)=(Nn)(new wavelength)
inelastic collision

48. first kinematic
roeVg
frequency never changes for light problems
V = (Vo) + at
V^2=(Vo)^2 +2a*change in x

49. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
GM*M/(r^2)
e=mc^2
(EMF)Rt/10
roegh

50. formula for Carnot efficiency
M(Lf)
Columbs/second
G M/((d/2)^2)
((Th) -(Tl))/(Th)