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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. what direction is friction?
no force (right hand rule)
(No)(wavelength)=(Nn)(new wavelength)
opposite motion
E/B

2. formula for finding the magnetic field a distance r from a current carrying wire
no force (right hand rule)
KI/r
dSintheta=mwavelength
KQ/r

3. second kinematic
mgCostheta(mu)d
delta x = (Vo)t + .5at^2
(EMF)Rt/10
rF

4. energy of a photon if wavelength is known
GM*M/(r^2)
hc/wavelength
mgCostheta(mu)d
deltaU = deltaQ + deltaW

5. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
n(Cv)(deltaT)
-KA
no force (right hand rule)

6. hooke's law force of a spring
-KA
G M/((d/2)^2)
opposite motion
(Wnet)/(Qin)

7. pressure
(V^2)/R
F/A
2Pi * sqrt(l/g)
1/2wavelength

8. natural frequency of an open tube of length L
2nt=mwavelength
1/2wavelength
(Patm) + (Pgauge)
qrB/m

9. formula for impulse involving momentum
e=mc^2
mV -m(Vo)
V+IR
Joules/Columb

10. isothermal
joules/second
K |q||Q|/r^2
no temp change
mV -m(Vo)

11. electric potential a distance r from a charge
h/wavelength
(V^2)/R
KQ/r
F/A

12. formula for Carnot efficiency
h(Fo)
nSintheta=nsintheta
(1/Do) + (1/Di) = (1/f)
((Th) -(Tl))/(Th)

13. electric field in a distance r from a charge
k|Q|/r^2
V^2=(Vo)^2 +2a*change in x
2Pi * sqrt(l/g)
qVB

14. formula for height of the block (at the start of a pendulum string) in terms of theta and L
k|Q|/r^2
L -LCostheta
V^2=(Vo)^2 +2a*change in x
(EMF)Rt/10

15. the units of current other than amps
Columbs/second
sqrt(3KT/m)
n(Cv)(deltaT)
mgCostheta(mu)d

16. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
qV
n(Cv)(deltaT)
Columbs/second

17. snells law
h/mv
no heat flow
nSintheta=nsintheta
no temp change

18. formula for power with current and voltage
h(Fo)
(EMF)Rt/10
.5mV^2 + .5KA^2
VI

19. type of collision where K is conserved
qrB/m
(Wnet)/(Qin)
(Di)/(Do) or (Hi)/(Ho)
elastic collision

20. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
BA
m(v^2)/qvB
delta x = (Vo)t + .5at^2

21. units for voltage other than volts
Joules/Columb
opposite motion
FV
inelastic collision

22. the force on a charge moving parallel to a magnetic field
(Wnet)/(Qin)
0
no force (right hand rule)
K |q||Q|/r^2

23. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
((Th) -(Tl))/(Th)
constant volume
d/2

24. voltage induced in a rod moving through a uniform magnetic field
2Pi * sqrt(l/g)
BLv
(EMF)Rt/10
(I^2)RT

25. lens/mirror equation
(EMF)Rt/10
frequency never changes for light problems
rF
(1/Do) + (1/Di) = (1/f)

26. equation of continuity
Columbs/second
AV=(A2)(V2)
Joules/Columb
KI/r

27. the force on a charge in an electric field
BA
.5mV^2 + .5KA^2
delta x = (Vo)t + .5at^2
qE

28. formula for power with Voltage and resistance
J= Ft
d/2
(V^2)/R
KI/r

29. heat required to melt a substance
mgCostheta(mu)d
qrB/m
roegh
M(Lf)

30. heat during an isometric process
sqrt(T/(m/))
n(Cv)(deltaT)
Q=CV
1/4wavelength

31. formula equating energy and mass
e=mc^2
constant volume
frequency never changes for light problems
k|Q|/r^2

32. formula to find the gauge pressure at the bottom of a pool
Joules/Columb
roegh
(V^2)/r
no heat flow

33. the units of power other than watts
mV -m(Vo)
roeVg
joules/second
(I^2)R

34. EMF of a battery having internal resistance R
n(Cv)(deltaT)
V+IR
net work = delta K
L -LCostheta

35. formula for charge stored in a capciator
opposite motion
Q=CV
h(Fo)
Joules/Columb

36. heat required to change temperature of a substance
MC(deltaT)
(I^2)RT
constant volume
V = (Vo) + at

37. velocity of waves on a string if tension is known
sqrt(T/(m/))
roegh
.5KA^2
0

38. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
E/B
FV
2Pi * sqrt(l/g)

39. formula for constructive interference in a thin membrane with two phase changes
FV
BA
1/4wavelength
2nt=mwavelength

40. adibatic
(1/Do) + (1/Di) = (1/f)
no heat flow
(V^2)/R
K |q||Q|/r^2

41. formula for buoyant force
qV
roeVg
(Wnet)/(Qin)
F/A

42. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
L -LCostheta
sqrt(3KT/m)
nSintheta=nsintheta
E/B

43. formula for impluse involving time
V+IR
deltaU -deltaW
J= Ft
dSintheta=mwavelength

44. work energy theorum
((Qin) -(Qout))/(Qin)
net work = delta K
frequency never changes for light problems
AV=(A2)(V2)

45. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
net work = delta K
roeVg
(I^2)RT
(Fn)(mu)

46. force of gravity between two objects of mass m
GM*M/(r^2)
AV=(A2)(V2)
2Pi * sqrt(l/g)
hc/wavelength

47. type of collision where objects stick togerther
k|Q|/r^2
perfectly inelastic collision
frequency never changes for light problems
GM*M/(r^2)

48. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
no temp change
deltaU -deltaW
h/mv

49. formula for efficiency of a heat engine using work out
0
joules/second
(Wnet)/(Qin)
KQ/r

50. third kinematic
BA
1/4wavelength
V^2=(Vo)^2 +2a*change in x
k|Q|/r^2