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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
h/mv
net work = delta K
.5mV^2 + .5KA^2
Joules/Columb

2. formula for power with current and voltage
hc/wavelength
F/A
no temp change
VI

3. formula for height of the block (at the start of a pendulum string) in terms of theta and L
h(Fo)
V^2=(Vo)^2 +2a*change in x
L -LCostheta
hc/wavelength

4. focal length of a mirror with radius d
Joules/Columb
(V^2)/r
.5KA^2
d/2

5. heat during an isometric process
(V^2)/r
(Di)/(Do) or (Hi)/(Ho)
(Fn)(mu)
n(Cv)(deltaT)

6. formula for Carnot efficiency
((Th) -(Tl))/(Th)
pL/A
perfectly inelastic collision
deltaU -deltaW

7. equation of continuity
BLv
AV=(A2)(V2)
(I^2)R
VI

8. adibatic
(EMF)Rt/10
KI/r
no heat flow
n(Cv)(deltaT)

9. new frequency of light as it enters a new substance
-KA
opposite motion
frequency never changes for light problems
constant pressure

10. energy of a photon if wavelength is known
hc/wavelength
k|Q|/r^2
V = (Vo) + at
Q=CV

11. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
dSintheta=mwavelength
no heat flow
(EMF)Rt/10
sqrt(3KT/m)

12. isometric
net work = delta K
constant volume
deltaU -deltaW
V^2=(Vo)^2 +2a*change in x

13. formula for constructive interference in a thin membrane with two phase changes
k|Q|/r^2
2nt=mwavelength
FV
no force (right hand rule)

14. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
1/2wavelength
0
deltaU -deltaW

15. force of gravity between two objects of mass m
KQ/r
(I^2)R
GM*M/(r^2)
MC(deltaT)

16. what direction is friction?
roegh
opposite motion
perfectly inelastic collision
(Fn)(mu)

17. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
(Fn)(mu)
V^2=(Vo)^2 +2a*change in x
MC(deltaT)

18. the force on a charge in an electric field
J= Ft
1/4wavelength
qE
Columbs/second

19. first kinematic
(No)(wavelength)=(Nn)(new wavelength)
(Di)/(Do) or (Hi)/(Ho)
qV
V = (Vo) + at

20. formula for power with Voltage and resistance
GM*M/(r^2)
(V^2)/R
h/mv
FV

21. the force on a charge moving parallel to a magnetic field
L -LCostheta
GM*M/(r^2)
((Qin) -(Qout))/(Qin)
no force (right hand rule)

22. magnification equation
(1/Do) + (1/Di) = (1/f)
(Di)/(Do) or (Hi)/(Ho)
Ed=V
FV

23. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
2Pi * sqrt(l/g)
qVB
G M/((d/2)^2)
FV

24. formula for impulse involving momentum
no temp change
mV -m(Vo)
L -LCostheta
0

25. formula equating energy and mass
(N2)/(N1)
e=mc^2
Q=CV
AV=(A2)(V2)

26. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
MC(deltaT)
(Di)/(Do) or (Hi)/(Ho)
e=mc^2

27. isobaric
constant pressure
Ed=V
(Fn)(mu)
qrB/m

28. the units of current other than amps
roeVg
(1/Do) + (1/Di) = (1/f)
Columbs/second
F/A

29. EMF of a battery having internal resistance R
V+IR
V^2=(Vo)^2 +2a*change in x
e=mc^2
no force (right hand rule)

30. formula for finding the work function of a metal if the cutoff frequency is known
sqrt(3KT/m)
h(Fo)
AV=(A2)(V2)
2Pi * sqrt(l/g)

31. radius of curvature of a charged particle as it enters a uniform magnetic field
qVB
dSintheta=mwavelength
m(v^2)/qvB
V+IR

32. formula for buoyant force
(EMF)Rt/10
elastic collision
roeVg
mgCostheta(mu)d

33. lens/mirror equation
L -LCostheta
GM*M/(r^2)
(1/Do) + (1/Di) = (1/f)
mgCostheta(mu)d

34. hooke's law force of a spring
0
-KA
(Di)/(Do) or (Hi)/(Ho)
(Wnet)/(Qin)

35. formula for centripetal acceleration
d/2
constant volume
BLv
(V^2)/r

36. forgotten power equation
sqrt(T/(m/))
sqrt(3KT/m)
FV
GM*M/(r^2)

37. formula for efficiency of a heat engine using work out
qE
d/2
(Wnet)/(Qin)
E/B

38. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
GM*M/(r^2)
(hc/wavelength)=h(Fo) +(Vs)
((Qin) -(Qout))/(Qin)
(1/Do) + (1/Di) = (1/f)

39. formula for period of a pendulum
1/4wavelength
mgCostheta(mu)d
2Pi * sqrt(l/g)
GM*M/(r^2)

40. formula for finding the momentum of a photon
V^2=(Vo)^2 +2a*change in x
BA
(Di)/(Do) or (Hi)/(Ho)
h/wavelength

41. second kinematic
-KA
delta x = (Vo)t + .5at^2
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems

42. total capacitance of capacitors in series
.5CV^2 or .5 Q^2/C or .5QV
.5mV^2 + .5KA^2
1/((1/C)+(1/C)..........)
qVB

43. formula for critical angle
(N2)/(N1)
KI/r
Ed=V
1/2wavelength

44. the electric force between two objects of charge Q
K |q||Q|/r^2
1/4wavelength
(Di)/(Do) or (Hi)/(Ho)
hc/wavelength

45. natural frequency of a closed tube of length L
constant volume
Q=CV
hc/wavelength
1/4wavelength

46. formula for finding magnetic flux
(Fn)(mu)
VI
BA
opposite motion

47. formula for impluse involving time
J= Ft
((Qin) -(Qout))/(Qin)
n(Cv)(deltaT)
(1/Do) + (1/Di) = (1/f)

48. force a charge in a Bfield
qVB
e=mc^2
opposite motion
frequency never changes for light problems

49. velocity of an electrion as it exitws from the hole
V^2=(Vo)^2 +2a*change in x
.5KA^2
-KA
qrB/m

50. formula for charge stored in a capciator
V^2=(Vo)^2 +2a*change in x
Q=CV
(EMF)Rt/10
deltaU -deltaW