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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 current and voltage
constant volume
KQ/r
VI
rF

2. type of collision where objects stick togerther
(Patm) + (Pgauge)
1/((1/C)+(1/C)..........)
perfectly inelastic collision
(I^2)R

3. formula for height of the block (at the start of a pendulum string) in terms of theta and L
V = (Vo) + at
sqrt(T/(m/))
(Patm) + (Pgauge)
L -LCostheta

4. units for voltage other than volts
roegh
(Di)/(Do) or (Hi)/(Ho)
Joules/Columb
1/((1/C)+(1/C)..........)

5. radius of curvature of a charged particle as it enters a uniform magnetic field
mgCostheta(mu)d
m(v^2)/qvB
J= Ft
elastic collision

6. formula for impluse involving time
-KA
hc/wavelength
J= Ft
k|Q|/r^2

7. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
BA
(EMF)Rt/10
(3/2)nRdeltaT
(Wnet)/(Qin)

8. isothermal
no temp change
sqrt(T/(m/))
no heat flow
dSintheta=mwavelength

9. formula for energy of a spring mass when spring is at maximum displacement
h(Fo)
.5KA^2
no temp change
AV=(A2)(V2)

10. formula for finding magnetic flux
BA
1/2wavelength
inelastic collision
elastic collision

11. natural frequency of a closed tube of length L
1/4wavelength
-KA
(Fn)(mu)
d/2

12. type of collision where K is not conserved
e=mc^2
inelastic collision
K |q||Q|/r^2
BLv

13. formula for period of a pendulum
FV
2Pi * sqrt(l/g)
(3/2)nRdeltaT
(V^2)/r

14. velocity of waves on a string if tension is known
2nt=mwavelength
2Pi * sqrt(l/g)
h/mv
sqrt(T/(m/))

15. magnification equation
(Di)/(Do) or (Hi)/(Ho)
h(Fo)
mV -m(Vo)
-KA

16. work energy theorum
mV -m(Vo)
net work = delta K
(EMF)Rt/10
V = (Vo) + at

17. formula for buoyant force
sqrt(3KT/m)
roeVg
BLv
.5KA^2

18. formula for the wavelength (debroglie wavelength) of a moving particle
deltaU = deltaQ + deltaW
Q=CV
(V^2)/R
h/mv

19. energy of a photon if wavelength is known
mV -m(Vo)
1/4wavelength
hc/wavelength
no force (right hand rule)

20. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
qrB/m
-KA
E/B

21. what direction is friction?
(No)(wavelength)=(Nn)(new wavelength)
opposite motion
(V^2)/R
n(Cv)(deltaT)

22. natural frequency of an open tube of length L
(I^2)RT
1/2wavelength
perfectly inelastic collision
(Patm) + (Pgauge)

23. velocity of a molecule of gas
sqrt(3KT/m)
(V^2)/r
elastic collision
K |q||Q|/r^2

24. formula for charge stored in a capciator
BA
(hc/wavelength)=h(Fo) +(Vs)
h/mv
Q=CV

25. formula for Carnot efficiency
net work = delta K
-KA
KQ/r
((Th) -(Tl))/(Th)

26. electric potential a distance r from a charge
qVB
k|Q|/r^2
2Pi * sqrt(l/g)
KQ/r

27. snells law
pL/A
(3/2)nRdeltaT
nSintheta=nsintheta
m(v^2)/qvB

28. force of gravity between two objects of mass m
GM*M/(r^2)
inelastic collision
(Di)/(Do) or (Hi)/(Ho)
roeVg

29. formula for critical angle
FV
(Patm) + (Pgauge)
(No)(wavelength)=(Nn)(new wavelength)
(N2)/(N1)

30. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
Joules/Columb
KI/r
roeVg

31. heat during a cyclic process (net heat)
.5CV^2 or .5 Q^2/C or .5QV
V = (Vo) + at
deltaU -deltaW
no force (right hand rule)

32. change in internal energy during a cyclic process
((Qin) -(Qout))/(Qin)
0
net work = delta K
MC(deltaT)

33. heat during an isometric process
((Th) -(Tl))/(Th)
1/2wavelength
(I^2)RT
n(Cv)(deltaT)

34. lens/mirror equation
L -LCostheta
(1/Do) + (1/Di) = (1/f)
Ed=V
delta x = (Vo)t + .5at^2

35. formula for torque
0
K |q||Q|/r^2
V+IR
rF

36. heat required to change temperature of a substance
Columbs/second
d/2
MC(deltaT)
1/((1/C)+(1/C)..........)

37. focal length of a mirror with radius d
joules/second
M(Lf)
d/2
L -LCostheta

38. EMF of a battery having internal resistance R
V^2=(Vo)^2 +2a*change in x
(I^2)R
qVB
V+IR

39. force of friction
BLv
no temp change
1/2wavelength
(Fn)(mu)

40. first kinematic
h/mv
V = (Vo) + at
.5mV^2 + .5KA^2
m(v^2)/qvB

41. equation for the first law of thermodynamics
1/4wavelength
(V^2)/R
m(v^2)/qvB
deltaU = deltaQ + deltaW

42. formula for centripetal acceleration
(V^2)/r
BA
V^2=(Vo)^2 +2a*change in x
inelastic collision

43. velocity of an electrion as it exitws from the hole
sqrt(T/(m/))
qrB/m
rF
1/2wavelength

44. heat required to melt a substance
qE
M(Lf)
(Di)/(Do) or (Hi)/(Ho)
J= Ft

45. isometric
constant volume
Ed=V
joules/second
k|Q|/r^2

46. formula for finding the magnetic field a distance r from a current carrying wire
rF
(EMF)Rt/10
((Qin) -(Qout))/(Qin)
KI/r

47. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
(Di)/(Do) or (Hi)/(Ho)
(No)(wavelength)=(Nn)(new wavelength)
.5mV^2 + .5KA^2

48. force of frction on an incline
1/2wavelength
elastic collision
mgCostheta(mu)d
h(Fo)

49. type of collision where K is conserved
elastic collision
V+IR
mV -m(Vo)
(Wnet)/(Qin)

50. formula for constructive interference in a thin membrane with two phase changes
(hc/wavelength)=h(Fo) +(Vs)
2nt=mwavelength
(3/2)nRdeltaT
(1/Do) + (1/Di) = (1/f)