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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. heat required to change temperature of a substance
n(Cv)(deltaT)
MC(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
FV

2. formula for finding magnetic flux
nSintheta=nsintheta
BA
k|Q|/r^2
(Patm) + (Pgauge)

3. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
no temp change
E/B
V+IR
opposite motion

4. formula for torque
qV
deltaU -deltaW
rF
F/A

5. formula for power with current and resistance
elastic collision
(I^2)R
deltaU -deltaW
d/2

6. formula for Carnot efficiency
((Th) -(Tl))/(Th)
joules/second
e=mc^2
net work = delta K

7. natural frequency of an open tube of length L
1/2wavelength
e=mc^2
(V^2)/R
no temp change

8. force of frction on an incline
qVB
k|Q|/r^2
mgCostheta(mu)d
(N2)/(N1)

9. formula to find the gauge pressure at the bottom of a pool
roegh
KQ/r
deltaU = deltaQ + deltaW
.5KA^2

10. what direction is friction?
MC(deltaT)
opposite motion
V = (Vo) + at
joules/second

11. isobaric
constant pressure
L -LCostheta
Ed=V
F/A

12. units for voltage other than volts
Joules/Columb
.5KA^2
(Fn)(mu)
sqrt(T/(m/))

13. the force on a charge moving parallel to a magnetic field
perfectly inelastic collision
no force (right hand rule)
Joules/Columb
qE

14. force of gravity between two objects of mass m
elastic collision
(Fn)(mu)
(I^2)R
GM*M/(r^2)

15. energy of a photon if wavelength is known
hc/wavelength
2nt=mwavelength
((Qin) -(Qout))/(Qin)
J= Ft

16. voltage induced in a rod moving through a uniform magnetic field
BLv
delta x = (Vo)t + .5at^2
qrB/m
MC(deltaT)

17. isothermal
no heat flow
deltaU = deltaQ + deltaW
no temp change
(I^2)RT

18. formula for the wavelength (debroglie wavelength) of a moving particle
n(Cv)(deltaT)
FV
h/mv
sqrt(T/(m/))

19. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
qrB/m
h/wavelength
K |q||Q|/r^2

20. velocity of waves on a string if tension is known
0
sqrt(T/(m/))
no force (right hand rule)
frequency never changes for light problems

21. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
V = (Vo) + at
(EMF)Rt/10
constant volume
deltaU = deltaQ + deltaW

22. work energy theorum
deltaU = deltaQ + deltaW
net work = delta K
(3/2)nRdeltaT
qrB/m

23. force of friction
1/((1/C)+(1/C)..........)
m(v^2)/qvB
k|Q|/r^2
(Fn)(mu)

24. type of collision where K is conserved
KQ/r
qE
elastic collision
-KA

25. formula for energy of a spring mass when spring is at maximum displacement
perfectly inelastic collision
.5KA^2
GM*M/(r^2)
rF

26. formula for critical angle
d/2
1/((1/C)+(1/C)..........)
roegh
(N2)/(N1)

27. total capacitance of capacitors in series
pL/A
1/((1/C)+(1/C)..........)
joules/second
(Fn)(mu)

28. magnification equation
deltaU = deltaQ + deltaW
(Di)/(Do) or (Hi)/(Ho)
pL/A
MC(deltaT)

29. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
GM*M/(r^2)
(Patm) + (Pgauge)
.5mV^2 + .5KA^2
(V^2)/r

30. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
h(Fo)
joules/second
(EMF)Rt/10

31. formula for impluse involving time
J= Ft
Q=CV
h/wavelength
L -LCostheta

32. formula for finding the magnetic field a distance r from a current carrying wire
(Patm) + (Pgauge)
((Qin) -(Qout))/(Qin)
KI/r
sqrt(3KT/m)

33. formula for finding the momentum of a photon
.5mV^2 + .5KA^2
(3/2)nRdeltaT
h/wavelength
.5CV^2 or .5 Q^2/C or .5QV

34. change in internal energy during a cyclic process
(Wnet)/(Qin)
Joules/Columb
0
V = (Vo) + at

35. formula for charge stored in a capciator
M(Lf)
Q=CV
((Th) -(Tl))/(Th)
h(Fo)

36. the units of power other than watts
(No)(wavelength)=(Nn)(new wavelength)
elastic collision
Q=CV
joules/second

37. hooke's law force of a spring
h(Fo)
-KA
no heat flow
m(v^2)/qvB

38. 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
e=mc^2
1/((1/C)+(1/C)..........)
d/2

39. formula for power with Voltage and resistance
(Wnet)/(Qin)
h/wavelength
(V^2)/R
(No)(wavelength)=(Nn)(new wavelength)

40. the electric force between two objects of charge Q
K |q||Q|/r^2
mgCostheta(mu)d
BA
frequency never changes for light problems

41. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
no force (right hand rule)
mgCostheta(mu)d
(hc/wavelength)=h(Fo) +(Vs)
-KA

42. heat during a cyclic process (net heat)
(1/Do) + (1/Di) = (1/f)
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x
qE

43. formula relating voltage and electric field
GM*M/(r^2)
(hc/wavelength)=h(Fo) +(Vs)
Ed=V
frequency never changes for light problems

44. isometric
J= Ft
constant volume
M(Lf)
E/B

45. first kinematic
J= Ft
(Di)/(Do) or (Hi)/(Ho)
V = (Vo) + at
deltaU = deltaQ + deltaW

46. velocity of an electrion as it exitws from the hole
1/((1/C)+(1/C)..........)
qrB/m
1/4wavelength
J= Ft

47. EMF of a battery having internal resistance R
V+IR
(Wnet)/(Qin)
(No)(wavelength)=(Nn)(new wavelength)
Joules/Columb

48. type of collision where objects stick togerther
perfectly inelastic collision
((Th) -(Tl))/(Th)
k|Q|/r^2
Columbs/second

49. electric field in a distance r from a charge
k|Q|/r^2
E/B
.5CV^2 or .5 Q^2/C or .5QV
L -LCostheta

50. equation for the first law of thermodynamics
((Qin) -(Qout))/(Qin)
deltaU = deltaQ + deltaW
opposite motion
MC(deltaT)