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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. force a charge in a Bfield
roegh
GM*M/(r^2)
KI/r
qVB

2. new wavelength of light as it enters a new substance
M(Lf)
K |q||Q|/r^2
n(Cv)(deltaT)
(No)(wavelength)=(Nn)(new wavelength)

3. isometric
constant volume
(Di)/(Do) or (Hi)/(Ho)
constant pressure
no heat flow

4. formula for impulse involving momentum
2nt=mwavelength
V = (Vo) + at
mV -m(Vo)
2Pi * sqrt(l/g)

5. the force on a charge in an electric field
(hc/wavelength)=h(Fo) +(Vs)
qV
qE
(Di)/(Do) or (Hi)/(Ho)

6. formula equating energy and mass
delta x = (Vo)t + .5at^2
sqrt(3KT/m)
.5KA^2
e=mc^2

7. heat during a cyclic process (net heat)
(3/2)nRdeltaT
no temp change
deltaU -deltaW
mgCostheta(mu)d

8. second kinematic
sqrt(3KT/m)
1/((1/C)+(1/C)..........)
delta x = (Vo)t + .5at^2
FV

9. formula for charge stored in a capciator
Q=CV
L -LCostheta
BA
joules/second

10. first kinematic
V = (Vo) + at
delta x = (Vo)t + .5at^2
perfectly inelastic collision
sqrt(T/(m/))

11. formula for efficiency of a heat engine using work out
qE
inelastic collision
(Wnet)/(Qin)
AV=(A2)(V2)

12. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
net work = delta K
(No)(wavelength)=(Nn)(new wavelength)
qVB

13. third kinematic
0
V^2=(Vo)^2 +2a*change in x
KQ/r
MC(deltaT)

14. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
K |q||Q|/r^2
(Wnet)/(Qin)
2nt=mwavelength

15. formula for torque
GM*M/(r^2)
rF
J= Ft
qV

16. energy of a photon if wavelength is known
0
(V^2)/r
opposite motion
hc/wavelength

17. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
L -LCostheta
frequency never changes for light problems
2nt=mwavelength
G M/((d/2)^2)

18. what direction is friction?
qE
opposite motion
h(Fo)
1/((1/C)+(1/C)..........)

19. adibatic
(V^2)/R
no heat flow
GM*M/(r^2)
no force (right hand rule)

20. formula for Carnot efficiency
(V^2)/r
((Th) -(Tl))/(Th)
hc/wavelength
((Qin) -(Qout))/(Qin)

21. electric potential a distance r from a charge
KQ/r
qV
m(v^2)/qvB
V+IR

22. type of collision where objects stick togerther
1/2wavelength
E/B
perfectly inelastic collision
roegh

23. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
F/A
rF
-KA

24. force of friction
delta x = (Vo)t + .5at^2
elastic collision
no force (right hand rule)
(Fn)(mu)

25. energy stored in a capacitor
M(Lf)
.5CV^2 or .5 Q^2/C or .5QV
K |q||Q|/r^2
opposite motion

26. radius of curvature of a charged particle as it enters a uniform magnetic field
0
sqrt(3KT/m)
m(v^2)/qvB
(3/2)nRdeltaT

27. velocity of an electrion as it exitws from the hole
frequency never changes for light problems
n(Cv)(deltaT)
qrB/m
Joules/Columb

28. pressure
(Fn)(mu)
F/A
(3/2)nRdeltaT
M(Lf)

29. formula relating voltage and electric field
MC(deltaT)
Ed=V
h(Fo)
BLv

30. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
qV
E/B
n(Cv)(deltaT)
(I^2)RT

31. force of gravity between two objects of mass m
V^2=(Vo)^2 +2a*change in x
frequency never changes for light problems
GM*M/(r^2)
(EMF)Rt/10

32. the units of power other than watts
joules/second
Q=CV
mgCostheta(mu)d
(I^2)R

33. resistance of a wire
(1/Do) + (1/Di) = (1/f)
E/B
0
pL/A

34. new frequency of light as it enters a new substance
delta x = (Vo)t + .5at^2
frequency never changes for light problems
rF
qrB/m

35. electric field in a distance r from a charge
sqrt(T/(m/))
V^2=(Vo)^2 +2a*change in x
h/mv
k|Q|/r^2

36. formula for height of the block (at the start of a pendulum string) in terms of theta and L
pL/A
Columbs/second
L -LCostheta
(N2)/(N1)

37. type of collision where K is not conserved
inelastic collision
(hc/wavelength)=h(Fo) +(Vs)
perfectly inelastic collision
(V^2)/r

38. formula for power with Voltage and resistance
mgCostheta(mu)d
h/wavelength
((Qin) -(Qout))/(Qin)
(V^2)/R

39. velocity of a molecule of gas
nSintheta=nsintheta
AV=(A2)(V2)
Ed=V
sqrt(3KT/m)

40. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
BA
(EMF)Rt/10
2Pi * sqrt(l/g)
Q=CV

41. formula to find the absoluate pressure at the bottom of a pool
(Di)/(Do) or (Hi)/(Ho)
V = (Vo) + at
qrB/m
(Patm) + (Pgauge)

42. work energy theorum
dSintheta=mwavelength
Columbs/second
V^2=(Vo)^2 +2a*change in x
net work = delta K

43. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
(V^2)/R
d/2
J= Ft

44. formula for the wavelength (debroglie wavelength) of a moving particle
perfectly inelastic collision
1/2wavelength
h/mv
1/((1/C)+(1/C)..........)

45. units for voltage other than volts
(V^2)/R
mV -m(Vo)
Joules/Columb
Columbs/second

46. formula for critical angle
Q=CV
(Wnet)/(Qin)
(N2)/(N1)
L -LCostheta

47. formula for finding magnetic flux
BA
(3/2)nRdeltaT
qE
J= Ft

48. formula for impluse involving time
qV
J= Ft
(I^2)R
(No)(wavelength)=(Nn)(new wavelength)

49. equation of continuity
Ed=V
((Th) -(Tl))/(Th)
h(Fo)
AV=(A2)(V2)

50. heat required to melt a substance
(I^2)R
M(Lf)
0
roeVg

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