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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 melt a substance
(V^2)/R
V = (Vo) + at
M(Lf)
FV

2. change in internal energy during a cyclic process
0
mgCostheta(mu)d
(I^2)R
V+IR

3. formula relating voltage and electric field
opposite motion
sqrt(T/(m/))
Ed=V
V = (Vo) + at

4. forgotten power equation
((Th) -(Tl))/(Th)
dSintheta=mwavelength
hc/wavelength
FV

5. EMF of a battery having internal resistance R
VI
joules/second
perfectly inelastic collision
V+IR

6. new frequency of light as it enters a new substance
mgCostheta(mu)d
frequency never changes for light problems
GM*M/(r^2)
(Di)/(Do) or (Hi)/(Ho)

7. formula for charge stored in a capciator
h/mv
Q=CV
elastic collision
constant volume

8. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(V^2)/R
.5KA^2
G M/((d/2)^2)
(Di)/(Do) or (Hi)/(Ho)

9. equation for the first law of thermodynamics
Ed=V
opposite motion
deltaU = deltaQ + deltaW
Columbs/second

10. formula for impulse involving momentum
perfectly inelastic collision
(V^2)/r
mV -m(Vo)
delta x = (Vo)t + .5at^2

11. force of frction on an incline
FV
E/B
F/A
mgCostheta(mu)d

12. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
perfectly inelastic collision
h/mv
frequency never changes for light problems

13. resistance of a wire
h(Fo)
pL/A
V+IR
.5KA^2

14. formula for Carnot efficiency
perfectly inelastic collision
opposite motion
(EMF)Rt/10
((Th) -(Tl))/(Th)

15. force of friction
h/wavelength
(hc/wavelength)=h(Fo) +(Vs)
V = (Vo) + at
(Fn)(mu)

16. formula for power with Voltage and resistance
qE
Joules/Columb
(V^2)/R
(1/Do) + (1/Di) = (1/f)

17. isothermal
no temp change
qE
(Fn)(mu)
BLv

18. formula equating energy and mass
2nt=mwavelength
e=mc^2
k|Q|/r^2
.5KA^2

19. voltage induced in a rod moving through a uniform magnetic field
(V^2)/R
BLv
KQ/r
0

20. formula for constructive interference in a thin membrane with two phase changes
sqrt(T/(m/))
2nt=mwavelength
inelastic collision
(No)(wavelength)=(Nn)(new wavelength)

21. natural frequency of an open tube of length L
-KA
1/2wavelength
sqrt(T/(m/))
Ed=V

22. 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
M(Lf)
.5KA^2
Joules/Columb

23. formula to find the absoluate pressure at the bottom of a pool
hc/wavelength
AV=(A2)(V2)
FV
(Patm) + (Pgauge)

24. isometric
e=mc^2
(N2)/(N1)
constant volume
(Wnet)/(Qin)

25. electric potential a distance r from a charge
no force (right hand rule)
(V^2)/r
(V^2)/R
KQ/r

26. lens/mirror equation
.5KA^2
hc/wavelength
(1/Do) + (1/Di) = (1/f)
deltaU = deltaQ + deltaW

27. formula to find the gauge pressure at the bottom of a pool
G M/((d/2)^2)
.5mV^2 + .5KA^2
roegh
V+IR

28. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
(V^2)/r
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)

29. hooke's law force of a spring
(Di)/(Do) or (Hi)/(Ho)
-KA
h/mv
k|Q|/r^2

30. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
joules/second
E/B
2Pi * sqrt(l/g)
roeVg

31. type of collision where K is conserved
qE
perfectly inelastic collision
deltaU -deltaW
elastic collision

32. type of collision where objects stick togerther
(I^2)R
mgCostheta(mu)d
perfectly inelastic collision
mV -m(Vo)

33. pressure
sqrt(T/(m/))
F/A
L -LCostheta
dSintheta=mwavelength

34. natural frequency of a closed tube of length L
(V^2)/r
K |q||Q|/r^2
1/4wavelength
mV -m(Vo)

35. force of gravity between two objects of mass m
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV
GM*M/(r^2)
perfectly inelastic collision

36. energy of a photon if wavelength is known
(Fn)(mu)
hc/wavelength
rF
h(Fo)

37. velocity of waves on a string if tension is known
sqrt(T/(m/))
qE
joules/second
h(Fo)

38. the force on a charge moving parallel to a magnetic field
(V^2)/R
((Th) -(Tl))/(Th)
F/A
no force (right hand rule)

39. formula for critical angle
(N2)/(N1)
(3/2)nRdeltaT
mgCostheta(mu)d
2nt=mwavelength

40. equation of continuity
Columbs/second
d/2
n(Cv)(deltaT)
AV=(A2)(V2)

41. velocity of an electrion as it exitws from the hole
opposite motion
qrB/m
roeVg
h/wavelength

42. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
J= Ft
dSintheta=mwavelength
no force (right hand rule)

43. work energy theorum
qV
mV -m(Vo)
m(v^2)/qvB
net work = delta K

44. energy stored in a capacitor
(1/Do) + (1/Di) = (1/f)
(I^2)R
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x

45. 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
mV -m(Vo)
n(Cv)(deltaT)
e=mc^2

46. formula for torque
k|Q|/r^2
rF
mV -m(Vo)
(I^2)R

47. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
KI/r
1/((1/C)+(1/C)..........)
(EMF)Rt/10
AV=(A2)(V2)

48. formula for constructive interference in a diffraction grating
d/2
roeVg
dSintheta=mwavelength
V = (Vo) + at

49. formula for centripetal acceleration
(N2)/(N1)
(V^2)/r
KI/r
(EMF)Rt/10

50. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
GM*M/(r^2)
hc/wavelength
(Wnet)/(Qin)