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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. new frequency of light as it enters a new substance
(I^2)RT
(Patm) + (Pgauge)
frequency never changes for light problems
pL/A

2. formula for period of a pendulum
2Pi * sqrt(l/g)
qVB
deltaU -deltaW
inelastic collision

3. formula for impulse involving momentum
mV -m(Vo)
F/A
roeVg
hc/wavelength

4. total capacitance of capacitors in series
V = (Vo) + at
MC(deltaT)
1/((1/C)+(1/C)..........)
constant pressure

5. the force on a charge in an electric field
deltaU = deltaQ + deltaW
qE
h/mv
constant pressure

6. formula for torque
BA
(EMF)Rt/10
rF
(Wnet)/(Qin)

7. formula for charge stored in a capciator
qVB
roegh
Q=CV
mV -m(Vo)

8. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
h/wavelength
opposite motion
(1/Do) + (1/Di) = (1/f)
E/B

9. formula to find the absoluate pressure at the bottom of a pool
KI/r
no heat flow
1/2wavelength
(Patm) + (Pgauge)

10. the units of current other than amps
Columbs/second
G M/((d/2)^2)
net work = delta K
(N2)/(N1)

11. units for voltage other than volts
Joules/Columb
d/2
Q=CV
deltaU = deltaQ + deltaW

12. electric field in a distance r from a charge
(EMF)Rt/10
k|Q|/r^2
1/((1/C)+(1/C)..........)
BA

13. new wavelength of light as it enters a new substance
constant pressure
(No)(wavelength)=(Nn)(new wavelength)
AV=(A2)(V2)
roegh

14. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(EMF)Rt/10
.5mV^2 + .5KA^2
M(Lf)
qV

15. formula for power with current and resistance
BA
Joules/Columb
(I^2)R
roeVg

16. formula for change in internal energy in a cosnstat volume PV process
MC(deltaT)
mV -m(Vo)
(Wnet)/(Qin)
(3/2)nRdeltaT

17. formula to find the gauge pressure at the bottom of a pool
h/wavelength
AV=(A2)(V2)
roegh
((Th) -(Tl))/(Th)

18. snells law
0
elastic collision
delta x = (Vo)t + .5at^2
nSintheta=nsintheta

19. force a charge in a Bfield
qVB
((Qin) -(Qout))/(Qin)
(N2)/(N1)
sqrt(T/(m/))

20. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)
FV
no temp change

21. the electric force between two objects of charge Q
FV
VI
frequency never changes for light problems
K |q||Q|/r^2

22. work energy theorum
.5CV^2 or .5 Q^2/C or .5QV
1/((1/C)+(1/C)..........)
net work = delta K
n(Cv)(deltaT)

23. resistance of a wire
sqrt(3KT/m)
net work = delta K
pL/A
.5CV^2 or .5 Q^2/C or .5QV

24. formula for finding the magnetic field a distance r from a current carrying wire
dSintheta=mwavelength
BA
KI/r
(V^2)/r

25. heat during a cyclic process (net heat)
dSintheta=mwavelength
k|Q|/r^2
qE
deltaU -deltaW

26. formula for power with Voltage and resistance
(I^2)RT
(V^2)/R
(N2)/(N1)
Joules/Columb

27. formula for finding magnetic flux
BA
((Th) -(Tl))/(Th)
elastic collision
Q=CV

28. EMF of a battery having internal resistance R
(Patm) + (Pgauge)
(N2)/(N1)
no temp change
V+IR

29. type of collision where K is conserved
roeVg
elastic collision
L -LCostheta
deltaU = deltaQ + deltaW

30. hooke's law force of a spring
0
-KA
M(Lf)
KQ/r

31. force of gravity between two objects of mass m
1/2wavelength
KQ/r
GM*M/(r^2)
(Fn)(mu)

32. heat required to change temperature of a substance
1/((1/C)+(1/C)..........)
MC(deltaT)
qE
no temp change

33. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
-KA
G M/((d/2)^2)
V^2=(Vo)^2 +2a*change in x
V+IR

34. natural frequency of a closed tube of length L
net work = delta K
1/4wavelength
BA
MC(deltaT)

35. electric potential a distance r from a charge
KQ/r
constant pressure
(I^2)R
opposite motion

36. formula for constructive interference in a diffraction grating
sqrt(T/(m/))
h(Fo)
0
dSintheta=mwavelength

37. formula for centripetal acceleration
GM*M/(r^2)
(V^2)/r
(EMF)Rt/10
delta x = (Vo)t + .5at^2

38. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(I^2)RT
no temp change
Columbs/second

39. formula for impluse involving time
h/wavelength
.5CV^2 or .5 Q^2/C or .5QV
J= Ft
Ed=V

40. focal length of a mirror with radius d
opposite motion
d/2
MC(deltaT)
(Fn)(mu)

41. third kinematic
0
frequency never changes for light problems
V^2=(Vo)^2 +2a*change in x
qE

42. forgotten power equation
(I^2)R
frequency never changes for light problems
FV
2Pi * sqrt(l/g)

43. what direction is friction?
(1/Do) + (1/Di) = (1/f)
(V^2)/R
Columbs/second
opposite motion

44. pressure
Q=CV
Joules/Columb
F/A
MC(deltaT)

45. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
(I^2)R
no force (right hand rule)
K |q||Q|/r^2

46. heat during an isometric process
hc/wavelength
n(Cv)(deltaT)
AV=(A2)(V2)
(Wnet)/(Qin)

47. velocity of a molecule of gas
mV -m(Vo)
E/B
delta x = (Vo)t + .5at^2
sqrt(3KT/m)

48. natural frequency of an open tube of length L
L -LCostheta
deltaU -deltaW
KI/r
1/2wavelength

49. formula for finding the work function of a metal if the cutoff frequency is known
VI
h(Fo)
(1/Do) + (1/Di) = (1/f)
n(Cv)(deltaT)

50. adibatic
no heat flow
GM*M/(r^2)
no temp change
((Qin) -(Qout))/(Qin)