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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. work energy theorum
(1/Do) + (1/Di) = (1/f)
net work = delta K
(EMF)Rt/10
G M/((d/2)^2)

2. equation for the first law of thermodynamics
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
roegh
nSintheta=nsintheta

3. force a charge in a Bfield
-KA
(Fn)(mu)
(I^2)RT
qVB

4. formula for the wavelength (debroglie wavelength) of a moving particle
VI
h/mv
m(v^2)/qvB
M(Lf)

5. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
no temp change
roegh
V = (Vo) + at

6. formula for change in internal energy in a cosnstat volume PV process
qVB
roegh
(3/2)nRdeltaT
KQ/r

7. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
pL/A
1/2wavelength
1/4wavelength

8. what direction is friction?
frequency never changes for light problems
k|Q|/r^2
Columbs/second
opposite motion

9. formula for power with current and resistance
qrB/m
(I^2)R
no temp change
M(Lf)

10. formula for energy of a spring mass when spring is at maximum displacement
((Qin) -(Qout))/(Qin)
h(Fo)
Joules/Columb
.5KA^2

11. the force on a charge in an electric field
roeVg
qE
Q=CV
M(Lf)

12. adibatic
inelastic collision
KQ/r
(Patm) + (Pgauge)
no heat flow

13. pressure
F/A
(Wnet)/(Qin)
.5KA^2
joules/second

14. formula for torque
(N2)/(N1)
sqrt(3KT/m)
mgCostheta(mu)d
rF

15. formula for centripetal acceleration
hc/wavelength
constant volume
(V^2)/r
1/((1/C)+(1/C)..........)

16. voltage induced in a rod moving through a uniform magnetic field
sqrt(T/(m/))
Q=CV
BLv
mV -m(Vo)

17. formula to find the absoluate pressure at the bottom of a pool
V = (Vo) + at
mgCostheta(mu)d
(Patm) + (Pgauge)
(I^2)R

18. the electric force between two objects of charge Q
(1/Do) + (1/Di) = (1/f)
delta x = (Vo)t + .5at^2
K |q||Q|/r^2
n(Cv)(deltaT)

19. heat during a cyclic process (net heat)
(hc/wavelength)=h(Fo) +(Vs)
hc/wavelength
deltaU -deltaW
nSintheta=nsintheta

20. formula for finding the momentum of a photon
1/2wavelength
(hc/wavelength)=h(Fo) +(Vs)
h/wavelength
qVB

21. isothermal
qrB/m
(No)(wavelength)=(Nn)(new wavelength)
no temp change
F/A

22. formula for critical angle
qVB
frequency never changes for light problems
qV
(N2)/(N1)

23. heat required to change temperature of a substance
MC(deltaT)
F/A
(I^2)R
((Qin) -(Qout))/(Qin)

24. formula for finding the work function of a metal if the cutoff frequency is known
.5mV^2 + .5KA^2
.5CV^2 or .5 Q^2/C or .5QV
h(Fo)
constant pressure

25. formula for finding magnetic flux
-KA
h/mv
BA
pL/A

26. energy of a photon if wavelength is known
hc/wavelength
nSintheta=nsintheta
(Fn)(mu)
(V^2)/R

27. formula for power with Voltage and resistance
L -LCostheta
(V^2)/R
(N2)/(N1)
(EMF)Rt/10

28. 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
qVB
mgCostheta(mu)d
AV=(A2)(V2)

29. formula for Carnot efficiency
roegh
((Th) -(Tl))/(Th)
h/wavelength
.5mV^2 + .5KA^2

30. magnification equation
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)
joules/second
BA

31. formula for impluse involving time
((Qin) -(Qout))/(Qin)
h/mv
J= Ft
mgCostheta(mu)d

32. second kinematic
opposite motion
delta x = (Vo)t + .5at^2
perfectly inelastic collision
Columbs/second

33. velocity of waves on a string if tension is known
2Pi * sqrt(l/g)
sqrt(T/(m/))
(No)(wavelength)=(Nn)(new wavelength)
((Qin) -(Qout))/(Qin)

34. type of collision where K is not conserved
MC(deltaT)
K |q||Q|/r^2
Q=CV
inelastic collision

35. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
.5CV^2 or .5 Q^2/C or .5QV
G M/((d/2)^2)
dSintheta=mwavelength
(EMF)Rt/10

36. the units of power other than watts
L -LCostheta
V = (Vo) + at
elastic collision
joules/second

37. total capacitance of capacitors in series
mV -m(Vo)
E/B
1/((1/C)+(1/C)..........)
0

38. formula for period of a pendulum
KI/r
(N2)/(N1)
2Pi * sqrt(l/g)
2nt=mwavelength

39. formula for impulse involving momentum
roegh
n(Cv)(deltaT)
1/((1/C)+(1/C)..........)
mV -m(Vo)

40. type of collision where objects stick togerther
(1/Do) + (1/Di) = (1/f)
perfectly inelastic collision
Joules/Columb
pL/A

41. natural frequency of an open tube of length L
(Patm) + (Pgauge)
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
J= Ft

42. force of frction on an incline
mgCostheta(mu)d
no temp change
FV
KI/r

43. new wavelength of light as it enters a new substance
0
rF
(No)(wavelength)=(Nn)(new wavelength)
((Qin) -(Qout))/(Qin)

44. focal length of a mirror with radius d
d/2
n(Cv)(deltaT)
e=mc^2
(V^2)/r

45. velocity of an electrion as it exitws from the hole
qrB/m
(EMF)Rt/10
.5KA^2
Joules/Columb

46. electric field in a distance r from a charge
K |q||Q|/r^2
k|Q|/r^2
Columbs/second
deltaU = deltaQ + deltaW

47. heat required to melt a substance
perfectly inelastic collision
M(Lf)
Columbs/second
e=mc^2

48. snells law
inelastic collision
nSintheta=nsintheta
2Pi * sqrt(l/g)
V^2=(Vo)^2 +2a*change in x

49. new frequency of light as it enters a new substance
frequency never changes for light problems
qV
AV=(A2)(V2)
(3/2)nRdeltaT

50. isobaric
(1/Do) + (1/Di) = (1/f)
AV=(A2)(V2)
1/2wavelength
constant pressure