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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 finding magnetic flux
G M/((d/2)^2)
dSintheta=mwavelength
BA
m(v^2)/qvB

2. work energy theorum
-KA
qE
h(Fo)
net work = delta K

3. formula to find the absoluate pressure at the bottom of a pool
1/4wavelength
(Patm) + (Pgauge)
delta x = (Vo)t + .5at^2
net work = delta K

4. focal length of a mirror with radius d
1/((1/C)+(1/C)..........)
d/2
frequency never changes for light problems
qrB/m

5. equation of continuity
L -LCostheta
K |q||Q|/r^2
VI
AV=(A2)(V2)

6. the units of current other than amps
Columbs/second
E/B
dSintheta=mwavelength
BA

7. formula for efficiency of a heat engine using work out
0
(Wnet)/(Qin)
nSintheta=nsintheta
(V^2)/R

8. 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)
((Qin) -(Qout))/(Qin)
qE
V+IR

9. formula for efficiency not using work out
(3/2)nRdeltaT
h/mv
qVB
((Qin) -(Qout))/(Qin)

10. formula for critical angle
constant pressure
(N2)/(N1)
(No)(wavelength)=(Nn)(new wavelength)
roeVg

11. new wavelength of light as it enters a new substance
k|Q|/r^2
(V^2)/r
1/2wavelength
(No)(wavelength)=(Nn)(new wavelength)

12. the units of power other than watts
(EMF)Rt/10
h/mv
joules/second
Columbs/second

13. pressure
(V^2)/R
(Di)/(Do) or (Hi)/(Ho)
qV
F/A

14. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
elastic collision
no force (right hand rule)
J= Ft

15. formula for period of a pendulum
KI/r
2Pi * sqrt(l/g)
d/2
qrB/m

16. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
d/2
(V^2)/R
.5mV^2 + .5KA^2
qrB/m

17. formula relating voltage and electric field
V = (Vo) + at
(hc/wavelength)=h(Fo) +(Vs)
V^2=(Vo)^2 +2a*change in x
Ed=V

18. force of gravity between two objects of mass m
roeVg
Columbs/second
GM*M/(r^2)
(No)(wavelength)=(Nn)(new wavelength)

19. magnification equation
(Fn)(mu)
hc/wavelength
(Di)/(Do) or (Hi)/(Ho)
0

20. velocity of a molecule of gas
0
(I^2)RT
(N2)/(N1)
sqrt(3KT/m)

21. force of frction on an incline
dSintheta=mwavelength
V^2=(Vo)^2 +2a*change in x
mgCostheta(mu)d
nSintheta=nsintheta

22. formula for impulse involving momentum
KQ/r
G M/((d/2)^2)
mV -m(Vo)
.5CV^2 or .5 Q^2/C or .5QV

23. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(Wnet)/(Qin)
mV -m(Vo)
hc/wavelength

24. energy of a photon if wavelength is known
delta x = (Vo)t + .5at^2
mV -m(Vo)
hc/wavelength
G M/((d/2)^2)

25. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(Fn)(mu)
L -LCostheta
elastic collision
V = (Vo) + at

26. velocity of an electrion as it exitws from the hole
.5mV^2 + .5KA^2
BLv
V+IR
qrB/m

27. snells law
(N2)/(N1)
nSintheta=nsintheta
(Wnet)/(Qin)
Q=CV

28. EMF of a battery having internal resistance R
V+IR
hc/wavelength
m(v^2)/qvB
d/2

29. isobaric
constant pressure
(Di)/(Do) or (Hi)/(Ho)
V+IR
L -LCostheta

30. force of friction
joules/second
(Fn)(mu)
roeVg
MC(deltaT)

31. the electric force between two objects of charge Q
K |q||Q|/r^2
qVB
mgCostheta(mu)d
V+IR

32. formula for Carnot efficiency
h(Fo)
0
((Th) -(Tl))/(Th)
GM*M/(r^2)

33. formula for impluse involving time
-KA
Ed=V
J= Ft
frequency never changes for light problems

34. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
perfectly inelastic collision
rF
(hc/wavelength)=h(Fo) +(Vs)
h(Fo)

35. radius of curvature of a charged particle as it enters a uniform magnetic field
K |q||Q|/r^2
m(v^2)/qvB
no heat flow
h/mv

36. electric field in a distance r from a charge
(Fn)(mu)
hc/wavelength
k|Q|/r^2
.5KA^2

37. velocity of waves on a string if tension is known
sqrt(T/(m/))
2nt=mwavelength
dSintheta=mwavelength
L -LCostheta

38. the force on a charge in an electric field
qE
no heat flow
FV
h/mv

39. force a charge in a Bfield
opposite motion
Joules/Columb
qVB
1/((1/C)+(1/C)..........)

40. formula for change in internal energy in a cosnstat volume PV process
V = (Vo) + at
delta x = (Vo)t + .5at^2
(3/2)nRdeltaT
k|Q|/r^2

41. type of collision where objects stick togerther
E/B
net work = delta K
perfectly inelastic collision
(hc/wavelength)=h(Fo) +(Vs)

42. formula for centripetal acceleration
m(v^2)/qvB
qrB/m
(V^2)/r
net work = delta K

43. units for voltage other than volts
E/B
no heat flow
Joules/Columb
roeVg

44. formula for charge stored in a capciator
no temp change
qE
Q=CV
h/mv

45. type of collision where K is not conserved
inelastic collision
(V^2)/R
qE
n(Cv)(deltaT)

46. what direction is friction?
sqrt(T/(m/))
opposite motion
-KA
rF

47. second kinematic
J= Ft
(EMF)Rt/10
delta x = (Vo)t + .5at^2
inelastic collision

48. change in internal energy during a cyclic process
2Pi * sqrt(l/g)
mgCostheta(mu)d
dSintheta=mwavelength
0

49. heat during an isometric process
deltaU -deltaW
GM*M/(r^2)
n(Cv)(deltaT)
F/A

50. formula for torque
(3/2)nRdeltaT
deltaU -deltaW
rF
sqrt(3KT/m)