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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. new frequency of light as it enters a new substance
qrB/m
KQ/r
frequency never changes for light problems
M(Lf)

2. formula relating voltage and electric field
Columbs/second
F/A
Ed=V
sqrt(T/(m/))

3. heat required to melt a substance
M(Lf)
1/((1/C)+(1/C)..........)
0
V^2=(Vo)^2 +2a*change in x

4. formula to find the gauge pressure at the bottom of a pool
roegh
(3/2)nRdeltaT
mgCostheta(mu)d
(Di)/(Do) or (Hi)/(Ho)

5. formula for impluse involving time
Q=CV
J= Ft
h/wavelength
(V^2)/R

6. 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
Columbs/second
rF
(EMF)Rt/10

7. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
dSintheta=mwavelength
L -LCostheta
no force (right hand rule)
qV

8. formula for period of a pendulum
constant volume
V^2=(Vo)^2 +2a*change in x
2Pi * sqrt(l/g)
dSintheta=mwavelength

9. isometric
roeVg
joules/second
constant volume
Q=CV

10. heat during a cyclic process (net heat)
deltaU = deltaQ + deltaW
roegh
deltaU -deltaW
net work = delta K

11. isobaric
constant pressure
FV
K |q||Q|/r^2
M(Lf)

12. electric potential a distance r from a charge
J= Ft
KQ/r
BLv
frequency never changes for light problems

13. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
frequency never changes for light problems
qVB
(hc/wavelength)=h(Fo) +(Vs)

14. what direction is friction?
qrB/m
opposite motion
joules/second
(1/Do) + (1/Di) = (1/f)

15. force of gravity between two objects of mass m
GM*M/(r^2)
no heat flow
constant volume
(V^2)/R

16. the force on a charge in an electric field
qE
h(Fo)
no heat flow
n(Cv)(deltaT)

17. third kinematic
qrB/m
V^2=(Vo)^2 +2a*change in x
(Wnet)/(Qin)
constant volume

18. natural frequency of an open tube of length L
1/2wavelength
h/mv
(EMF)Rt/10
net work = delta K

19. formula for power with current and voltage
2nt=mwavelength
VI
h/wavelength
(Wnet)/(Qin)

20. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
Ed=V
k|Q|/r^2
(Di)/(Do) or (Hi)/(Ho)

21. formula for efficiency not using work out
m(v^2)/qvB
e=mc^2
((Qin) -(Qout))/(Qin)
(Fn)(mu)

22. snells law
E/B
roegh
nSintheta=nsintheta
sqrt(3KT/m)

23. formula to find the absoluate pressure at the bottom of a pool
GM*M/(r^2)
G M/((d/2)^2)
mgCostheta(mu)d
(Patm) + (Pgauge)

24. formula for torque
(I^2)RT
net work = delta K
mV -m(Vo)
rF

25. type of collision where K is conserved
Joules/Columb
elastic collision
inelastic collision
(EMF)Rt/10

26. energy stored in a capacitor
KQ/r
L -LCostheta
mV -m(Vo)
.5CV^2 or .5 Q^2/C or .5QV

27. formula for efficiency of a heat engine using work out
(EMF)Rt/10
(I^2)RT
(Wnet)/(Qin)
(V^2)/R

28. 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)
(EMF)Rt/10
deltaU = deltaQ + deltaW
qrB/m

29. focal length of a mirror with radius d
1/((1/C)+(1/C)..........)
-KA
delta x = (Vo)t + .5at^2
d/2

30. the units of power other than watts
joules/second
roegh
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)

31. formula for critical angle
(V^2)/R
(N2)/(N1)
mgCostheta(mu)d
pL/A

32. the electric force between two objects of charge Q
mgCostheta(mu)d
K |q||Q|/r^2
mV -m(Vo)
1/2wavelength

33. formula for Carnot efficiency
no temp change
(Di)/(Do) or (Hi)/(Ho)
((Th) -(Tl))/(Th)
.5CV^2 or .5 Q^2/C or .5QV

34. formula for finding the work function of a metal if the cutoff frequency is known
dSintheta=mwavelength
(I^2)RT
delta x = (Vo)t + .5at^2
h(Fo)

35. heat during an isometric process
n(Cv)(deltaT)
Joules/Columb
V = (Vo) + at
roeVg

36. formula for centripetal acceleration
no temp change
mV -m(Vo)
sqrt(3KT/m)
(V^2)/r

37. natural frequency of a closed tube of length L
(hc/wavelength)=h(Fo) +(Vs)
1/4wavelength
1/((1/C)+(1/C)..........)
opposite motion

38. formula for finding the momentum of a photon
G M/((d/2)^2)
(Patm) + (Pgauge)
perfectly inelastic collision
h/wavelength

39. formula for finding magnetic flux
(Fn)(mu)
sqrt(T/(m/))
BA
constant pressure

40. force a charge in a Bfield
L -LCostheta
elastic collision
qVB
mgCostheta(mu)d

41. velocity of an electrion as it exitws from the hole
qrB/m
mV -m(Vo)
(N2)/(N1)
h/mv

42. formula for power with Voltage and resistance
roeVg
qrB/m
qV
(V^2)/R

43. equation of continuity
.5mV^2 + .5KA^2
sqrt(3KT/m)
AV=(A2)(V2)
M(Lf)

44. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
(Fn)(mu)
dSintheta=mwavelength
sqrt(T/(m/))

45. formula for finding the magnetic field a distance r from a current carrying wire
(N2)/(N1)
roegh
KI/r
k|Q|/r^2

46. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
e=mc^2
roegh
BA

47. total capacitance of capacitors in series
GM*M/(r^2)
.5KA^2
1/((1/C)+(1/C)..........)
deltaU -deltaW

48. lens/mirror equation
KQ/r
V+IR
(1/Do) + (1/Di) = (1/f)
m(v^2)/qvB

49. formula equating energy and mass
(EMF)Rt/10
e=mc^2
(Di)/(Do) or (Hi)/(Ho)
F/A

50. EMF of a battery having internal resistance R
d/2
V+IR
(I^2)R
qE