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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. total capacitance of capacitors in series
qVB
1/((1/C)+(1/C)..........)
VI
(V^2)/r

2. type of collision where K is not conserved
inelastic collision
KI/r
no heat flow
V = (Vo) + at

3. what direction is friction?
((Qin) -(Qout))/(Qin)
J= Ft
(Fn)(mu)
opposite motion

4. velocity of an electrion as it exitws from the hole
e=mc^2
qrB/m
nSintheta=nsintheta
Ed=V

5. formula to find the absoluate pressure at the bottom of a pool
delta x = (Vo)t + .5at^2
(Patm) + (Pgauge)
G M/((d/2)^2)
(EMF)Rt/10

6. snells law
nSintheta=nsintheta
qVB
(hc/wavelength)=h(Fo) +(Vs)
K |q||Q|/r^2

7. hooke's law force of a spring
1/4wavelength
perfectly inelastic collision
-KA
pL/A

8. force of friction
V+IR
n(Cv)(deltaT)
(3/2)nRdeltaT
(Fn)(mu)

9. adibatic
no heat flow
AV=(A2)(V2)
delta x = (Vo)t + .5at^2
e=mc^2

10. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
KQ/r
qV
Ed=V
.5CV^2 or .5 Q^2/C or .5QV

11. heat required to change temperature of a substance
(EMF)Rt/10
Joules/Columb
FV
MC(deltaT)

12. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
BA
E/B
delta x = (Vo)t + .5at^2

13. isobaric
rF
constant pressure
(V^2)/R
(Patm) + (Pgauge)

14. formula for finding magnetic flux
KI/r
1/2wavelength
BA
(EMF)Rt/10

15. formula relating voltage and electric field
(Wnet)/(Qin)
Ed=V
.5KA^2
qVB

16. formula for charge stored in a capciator
qE
-KA
(1/Do) + (1/Di) = (1/f)
Q=CV

17. second kinematic
delta x = (Vo)t + .5at^2
V = (Vo) + at
(N2)/(N1)
2Pi * sqrt(l/g)

18. formula for impulse involving momentum
qV
mV -m(Vo)
n(Cv)(deltaT)
M(Lf)

19. energy of a photon if wavelength is known
(hc/wavelength)=h(Fo) +(Vs)
V^2=(Vo)^2 +2a*change in x
deltaU -deltaW
hc/wavelength

20. heat during a cyclic process (net heat)
Ed=V
(V^2)/r
V^2=(Vo)^2 +2a*change in x
deltaU -deltaW

21. formula for power with current and voltage
0
VI
rF
pL/A

22. change in internal energy during a cyclic process
(V^2)/R
Q=CV
(Wnet)/(Qin)
0

23. velocity of a molecule of gas
opposite motion
((Th) -(Tl))/(Th)
sqrt(3KT/m)
roegh

24. electric potential a distance r from a charge
m(v^2)/qvB
KQ/r
k|Q|/r^2
AV=(A2)(V2)

25. electric field in a distance r from a charge
delta x = (Vo)t + .5at^2
((Qin) -(Qout))/(Qin)
n(Cv)(deltaT)
k|Q|/r^2

26. formula for torque
.5KA^2
n(Cv)(deltaT)
rF
1/((1/C)+(1/C)..........)

27. velocity of waves on a string if tension is known
sqrt(T/(m/))
KQ/r
inelastic collision
deltaU = deltaQ + deltaW

28. formula for critical angle
(hc/wavelength)=h(Fo) +(Vs)
F/A
(N2)/(N1)
e=mc^2

29. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
(Di)/(Do) or (Hi)/(Ho)
K |q||Q|/r^2
pL/A

30. new frequency of light as it enters a new substance
mV -m(Vo)
frequency never changes for light problems
BA
d/2

31. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
M(Lf)
GM*M/(r^2)
Joules/Columb

32. formula for Carnot efficiency
k|Q|/r^2
Q=CV
n(Cv)(deltaT)
((Th) -(Tl))/(Th)

33. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
qVB
qE
(I^2)R

34. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
elastic collision
V = (Vo) + at
sqrt(T/(m/))
(hc/wavelength)=h(Fo) +(Vs)

35. pressure
h/mv
Ed=V
FV
F/A

36. heat during an isometric process
E/B
roegh
1/4wavelength
n(Cv)(deltaT)

37. voltage induced in a rod moving through a uniform magnetic field
no temp change
elastic collision
BLv
net work = delta K

38. isothermal
VI
(1/Do) + (1/Di) = (1/f)
J= Ft
no temp change

39. force of frction on an incline
h/mv
KQ/r
mgCostheta(mu)d
(EMF)Rt/10

40. formula for buoyant force
roeVg
rF
GM*M/(r^2)
V+IR

41. the force on a charge in an electric field
L -LCostheta
constant pressure
qE
.5KA^2

42. type of collision where K is conserved
(hc/wavelength)=h(Fo) +(Vs)
0
hc/wavelength
elastic collision

43. magnification equation
0
joules/second
(Di)/(Do) or (Hi)/(Ho)
h/mv

44. formula for finding the magnetic field a distance r from a current carrying wire
qE
no heat flow
opposite motion
KI/r

45. formula for power with current and resistance
((Qin) -(Qout))/(Qin)
(I^2)R
AV=(A2)(V2)
V = (Vo) + at

46. focal length of a mirror with radius d
k|Q|/r^2
d/2
((Qin) -(Qout))/(Qin)
(N2)/(N1)

47. the units of power other than watts
joules/second
constant volume
e=mc^2
((Th) -(Tl))/(Th)

48. formula for power with Voltage and resistance
AV=(A2)(V2)
2Pi * sqrt(l/g)
m(v^2)/qvB
(V^2)/R

49. resistance of a wire
L -LCostheta
pL/A
deltaU = deltaQ + deltaW
BLv

50. equation of continuity
k|Q|/r^2
1/2wavelength
AV=(A2)(V2)
h(Fo)