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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 height of the block (at the start of a pendulum string) in terms of theta and L
h/mv
(1/Do) + (1/Di) = (1/f)
(Di)/(Do) or (Hi)/(Ho)
L -LCostheta

2. formula for finding the work function of a metal if the cutoff frequency is known
mgCostheta(mu)d
h(Fo)
2nt=mwavelength
qrB/m

3. what direction is friction?
deltaU -deltaW
Ed=V
opposite motion
MC(deltaT)

4. formula to find the absoluate pressure at the bottom of a pool
FV
(Patm) + (Pgauge)
1/((1/C)+(1/C)..........)
deltaU = deltaQ + deltaW

5. the force on a charge moving parallel to a magnetic field
perfectly inelastic collision
no force (right hand rule)
qE
KQ/r

6. formula for efficiency not using work out
.5CV^2 or .5 Q^2/C or .5QV
((Qin) -(Qout))/(Qin)
mgCostheta(mu)d
(Patm) + (Pgauge)

7. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
roegh
(I^2)RT
E/B
frequency never changes for light problems

8. type of collision where K is not conserved
inelastic collision
d/2
L -LCostheta
(Fn)(mu)

9. natural frequency of a closed tube of length L
deltaU = deltaQ + deltaW
1/4wavelength
1/2wavelength
n(Cv)(deltaT)

10. force of frction on an incline
roeVg
0
qE
mgCostheta(mu)d

11. formula for power with current and voltage
VI
(I^2)RT
Columbs/second
(3/2)nRdeltaT

12. change in internal energy during a cyclic process
0
(Patm) + (Pgauge)
qVB
h/mv

13. velocity of an electrion as it exitws from the hole
qrB/m
opposite motion
(I^2)RT
.5CV^2 or .5 Q^2/C or .5QV

14. second kinematic
(EMF)Rt/10
delta x = (Vo)t + .5at^2
(N2)/(N1)
net work = delta K

15. formula for change in internal energy in a cosnstat volume PV process
mV -m(Vo)
G M/((d/2)^2)
(3/2)nRdeltaT
0

16. velocity of waves on a string if tension is known
(EMF)Rt/10
delta x = (Vo)t + .5at^2
roegh
sqrt(T/(m/))

17. formula for finding the momentum of a photon
net work = delta K
inelastic collision
h/wavelength
constant pressure

18. formula relating voltage and electric field
frequency never changes for light problems
(N2)/(N1)
net work = delta K
Ed=V

19. focal length of a mirror with radius d
joules/second
net work = delta K
d/2
qE

20. formula for centripetal acceleration
(V^2)/r
(I^2)R
(Di)/(Do) or (Hi)/(Ho)
2Pi * sqrt(l/g)

21. radius of curvature of a charged particle as it enters a uniform magnetic field
(V^2)/r
qrB/m
m(v^2)/qvB
qE

22. formula to find the gauge pressure at the bottom of a pool
1/4wavelength
roegh
V^2=(Vo)^2 +2a*change in x
BA

23. forgotten power equation
deltaU = deltaQ + deltaW
(V^2)/r
FV
h/mv

24. heat during an isometric process
n(Cv)(deltaT)
(3/2)nRdeltaT
.5KA^2
V^2=(Vo)^2 +2a*change in x

25. voltage induced in a rod moving through a uniform magnetic field
Columbs/second
F/A
BLv
.5KA^2

26. energy of a photon if wavelength is known
(3/2)nRdeltaT
hc/wavelength
(Fn)(mu)
dSintheta=mwavelength

27. formula for power with Voltage and resistance
(Fn)(mu)
opposite motion
(V^2)/R
constant volume

28. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(EMF)Rt/10
.5mV^2 + .5KA^2
Ed=V
deltaU -deltaW

29. formula for period of a pendulum
2Pi * sqrt(l/g)
mgCostheta(mu)d
MC(deltaT)
dSintheta=mwavelength

30. heat during a cyclic process (net heat)
.5mV^2 + .5KA^2
VI
qrB/m
deltaU -deltaW

31. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
-KA
(EMF)Rt/10
no heat flow
(Patm) + (Pgauge)

32. formula for finding magnetic flux
KI/r
Joules/Columb
mgCostheta(mu)d
BA

33. formula for constructive interference in a diffraction grating
sqrt(T/(m/))
dSintheta=mwavelength
(1/Do) + (1/Di) = (1/f)
m(v^2)/qvB

34. isothermal
no temp change
no force (right hand rule)
k|Q|/r^2
qrB/m

35. formula for power with current and resistance
BLv
rF
(I^2)R
2nt=mwavelength

36. pressure
qrB/m
MC(deltaT)
V = (Vo) + at
F/A

37. formula for impulse involving momentum
.5CV^2 or .5 Q^2/C or .5QV
mV -m(Vo)
J= Ft
(I^2)RT

38. equation for the first law of thermodynamics
constant volume
no heat flow
1/4wavelength
deltaU = deltaQ + deltaW

39. the units of power other than watts
net work = delta K
-KA
((Th) -(Tl))/(Th)
joules/second

40. snells law
roeVg
BA
V = (Vo) + at
nSintheta=nsintheta

41. the electric force between two objects of charge Q
BLv
MC(deltaT)
KQ/r
K |q||Q|/r^2

42. units for voltage other than volts
KQ/r
Joules/Columb
GM*M/(r^2)
qVB

43. formula for torque
(N2)/(N1)
rF
sqrt(3KT/m)
inelastic collision

44. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
(Wnet)/(Qin)
M(Lf)
delta x = (Vo)t + .5at^2

45. formula for critical angle
m(v^2)/qvB
(3/2)nRdeltaT
h(Fo)
(N2)/(N1)

46. energy stored in a capacitor
net work = delta K
AV=(A2)(V2)
(hc/wavelength)=h(Fo) +(Vs)
.5CV^2 or .5 Q^2/C or .5QV

47. equation of continuity
(Fn)(mu)
AV=(A2)(V2)
1/4wavelength
2nt=mwavelength

48. type of collision where K is conserved
no temp change
sqrt(T/(m/))
qE
elastic collision

49. EMF of a battery having internal resistance R
G M/((d/2)^2)
pL/A
V+IR
qrB/m

50. first kinematic
V = (Vo) + at
1/((1/C)+(1/C)..........)
2nt=mwavelength
-KA