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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. the units of power other than watts
1/2wavelength
FV
joules/second
.5mV^2 + .5KA^2

2. formula for finding magnetic flux
Ed=V
BA
constant volume
(3/2)nRdeltaT

3. formula for torque
BA
V+IR
hc/wavelength
rF

4. magnification equation
(Di)/(Do) or (Hi)/(Ho)
no temp change
(Patm) + (Pgauge)
constant pressure

5. change in internal energy during a cyclic process
delta x = (Vo)t + .5at^2
0
sqrt(3KT/m)
Columbs/second

6. formula for constructive interference in a thin membrane with two phase changes
sqrt(3KT/m)
pL/A
2nt=mwavelength
KI/r

7. force a charge in a Bfield
qVB
frequency never changes for light problems
MC(deltaT)
1/2wavelength

8. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
delta x = (Vo)t + .5at^2
GM*M/(r^2)
(EMF)Rt/10
V^2=(Vo)^2 +2a*change in x

9. new frequency of light as it enters a new substance
0
.5CV^2 or .5 Q^2/C or .5QV
frequency never changes for light problems
qV

10. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(Di)/(Do) or (Hi)/(Ho)
dSintheta=mwavelength
F/A
.5mV^2 + .5KA^2

11. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
n(Cv)(deltaT)
V+IR
opposite motion

12. formula for power with current and voltage
(V^2)/r
n(Cv)(deltaT)
frequency never changes for light problems
VI

13. formula for impulse involving momentum
h(Fo)
mV -m(Vo)
h/wavelength
(I^2)RT

14. velocity of waves on a string if tension is known
1/4wavelength
KI/r
sqrt(T/(m/))
net work = delta K

15. the units of current other than amps
G M/((d/2)^2)
Columbs/second
(Wnet)/(Qin)
elastic collision

16. hooke's law force of a spring
V^2=(Vo)^2 +2a*change in x
-KA
constant pressure
J= Ft

17. formula relating voltage and electric field
VI
Ed=V
(Fn)(mu)
2Pi * sqrt(l/g)

18. velocity of an electrion as it exitws from the hole
2nt=mwavelength
qrB/m
h/wavelength
qE

19. formula equating energy and mass
e=mc^2
hc/wavelength
(N2)/(N1)
h/mv

20. heat during a cyclic process (net heat)
G M/((d/2)^2)
deltaU -deltaW
Columbs/second
sqrt(3KT/m)

21. EMF of a battery having internal resistance R
V+IR
F/A
(1/Do) + (1/Di) = (1/f)
L -LCostheta

22. new wavelength of light as it enters a new substance
net work = delta K
(No)(wavelength)=(Nn)(new wavelength)
2Pi * sqrt(l/g)
perfectly inelastic collision

23. equation for the first law of thermodynamics
nSintheta=nsintheta
n(Cv)(deltaT)
deltaU = deltaQ + deltaW
E/B

24. formula for power with Voltage and resistance
pL/A
(I^2)RT
k|Q|/r^2
(V^2)/R

25. voltage induced in a rod moving through a uniform magnetic field
delta x = (Vo)t + .5at^2
(1/Do) + (1/Di) = (1/f)
GM*M/(r^2)
BLv

26. isobaric
constant pressure
elastic collision
perfectly inelastic collision
qV

27. lens/mirror equation
(I^2)RT
(Patm) + (Pgauge)
(1/Do) + (1/Di) = (1/f)
deltaU = deltaQ + deltaW

28. formula for critical angle
(N2)/(N1)
frequency never changes for light problems
m(v^2)/qvB
V = (Vo) + at

29. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)
GM*M/(r^2)
qV

30. total capacitance of capacitors in series
(EMF)Rt/10
FV
mV -m(Vo)
1/((1/C)+(1/C)..........)

31. formula to find the gauge pressure at the bottom of a pool
roegh
no temp change
1/((1/C)+(1/C)..........)
V+IR

32. formula for impluse involving time
V+IR
qE
J= Ft
1/((1/C)+(1/C)..........)

33. formula to find the absoluate pressure at the bottom of a pool
rF
(I^2)R
(Patm) + (Pgauge)
joules/second

34. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
constant volume
MC(deltaT)
nSintheta=nsintheta
(hc/wavelength)=h(Fo) +(Vs)

35. formula for efficiency not using work out
constant volume
((Qin) -(Qout))/(Qin)
qVB
V = (Vo) + at

36. resistance of a wire
BLv
sqrt(3KT/m)
pL/A
d/2

37. what direction is friction?
0
h(Fo)
opposite motion
F/A

38. energy stored in a capacitor
deltaU -deltaW
(N2)/(N1)
.5CV^2 or .5 Q^2/C or .5QV
(Patm) + (Pgauge)

39. formula for efficiency of a heat engine using work out
pL/A
KQ/r
qE
(Wnet)/(Qin)

40. formula for height of the block (at the start of a pendulum string) in terms of theta and L
no force (right hand rule)
L -LCostheta
(V^2)/R
MC(deltaT)

41. work energy theorum
0
no force (right hand rule)
net work = delta K
K |q||Q|/r^2

42. type of collision where K is not conserved
1/2wavelength
inelastic collision
qrB/m
2Pi * sqrt(l/g)

43. formula for power with current and resistance
(I^2)R
(1/Do) + (1/Di) = (1/f)
J= Ft
V = (Vo) + at

44. third kinematic
dSintheta=mwavelength
V^2=(Vo)^2 +2a*change in x
((Th) -(Tl))/(Th)
roegh

45. focal length of a mirror with radius d
constant volume
d/2
AV=(A2)(V2)
(hc/wavelength)=h(Fo) +(Vs)

46. second kinematic
L -LCostheta
delta x = (Vo)t + .5at^2
elastic collision
k|Q|/r^2

47. isothermal
2nt=mwavelength
e=mc^2
dSintheta=mwavelength
no temp change

48. heat required to change temperature of a substance
elastic collision
roegh
(1/Do) + (1/Di) = (1/f)
MC(deltaT)

49. heat during an isometric process
Ed=V
rF
F/A
n(Cv)(deltaT)

50. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
roeVg
no heat flow
.5mV^2 + .5KA^2