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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. resistance of a wire
-KA
pL/A
qVB
constant volume

2. the units of power other than watts
e=mc^2
(I^2)RT
-KA
joules/second

3. magnification equation
(Di)/(Do) or (Hi)/(Ho)
K |q||Q|/r^2
2nt=mwavelength
1/4wavelength

4. energy of a photon if wavelength is known
hc/wavelength
(EMF)Rt/10
GM*M/(r^2)
nSintheta=nsintheta

5. first kinematic
net work = delta K
Q=CV
V = (Vo) + at
(Di)/(Do) or (Hi)/(Ho)

6. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
no heat flow
perfectly inelastic collision
qV
V+IR

7. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
AV=(A2)(V2)
KQ/r
(hc/wavelength)=h(Fo) +(Vs)

8. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
((Th) -(Tl))/(Th)
BLv
KQ/r

9. velocity of an electrion as it exitws from the hole
qrB/m
AV=(A2)(V2)
.5CV^2 or .5 Q^2/C or .5QV
pL/A

10. units for voltage other than volts
2nt=mwavelength
0
V = (Vo) + at
Joules/Columb

11. formula for impulse involving momentum
sqrt(T/(m/))
G M/((d/2)^2)
mV -m(Vo)
V = (Vo) + at

12. equation for the first law of thermodynamics
J= Ft
(Patm) + (Pgauge)
deltaU = deltaQ + deltaW
rF

13. heat during an isometric process
n(Cv)(deltaT)
constant volume
nSintheta=nsintheta
1/2wavelength

14. equation of continuity
BA
AV=(A2)(V2)
e=mc^2
(I^2)R

15. type of collision where K is conserved
(EMF)Rt/10
elastic collision
dSintheta=mwavelength
1/((1/C)+(1/C)..........)

16. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
dSintheta=mwavelength
2Pi * sqrt(l/g)
G M/((d/2)^2)
elastic collision

17. new frequency of light as it enters a new substance
qVB
roeVg
frequency never changes for light problems
d/2

18. the force on a charge moving parallel to a magnetic field
(N2)/(N1)
perfectly inelastic collision
qrB/m
no force (right hand rule)

19. formula for period of a pendulum
Q=CV
(I^2)RT
(No)(wavelength)=(Nn)(new wavelength)
2Pi * sqrt(l/g)

20. formula for energy of a spring mass when spring is at maximum displacement
V^2=(Vo)^2 +2a*change in x
.5KA^2
(I^2)R
dSintheta=mwavelength

21. radius of curvature of a charged particle as it enters a uniform magnetic field
qVB
m(v^2)/qvB
AV=(A2)(V2)
1/((1/C)+(1/C)..........)

22. voltage induced in a rod moving through a uniform magnetic field
(Patm) + (Pgauge)
dSintheta=mwavelength
BLv
V^2=(Vo)^2 +2a*change in x

23. type of collision where K is not conserved
qVB
inelastic collision
constant pressure
qE

24. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
nSintheta=nsintheta
.5mV^2 + .5KA^2
(I^2)RT
V = (Vo) + at

25. forgotten power equation
MC(deltaT)
1/((1/C)+(1/C)..........)
FV
e=mc^2

26. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
BLv
E/B
mgCostheta(mu)d
2Pi * sqrt(l/g)

27. formula for buoyant force
G M/((d/2)^2)
VI
roeVg
E/B

28. force of friction
sqrt(T/(m/))
((Qin) -(Qout))/(Qin)
(Fn)(mu)
Q=CV

29. formula for torque
rF
deltaU = deltaQ + deltaW
BA
h/mv

30. total capacitance of capacitors in series
1/2wavelength
GM*M/(r^2)
pL/A
1/((1/C)+(1/C)..........)

31. isobaric
V = (Vo) + at
mgCostheta(mu)d
qVB
constant pressure

32. formula for power with current and resistance
(I^2)R
KQ/r
E/B
BA

33. isometric
constant volume
k|Q|/r^2
((Qin) -(Qout))/(Qin)
.5mV^2 + .5KA^2

34. formula for critical angle
(N2)/(N1)
(1/Do) + (1/Di) = (1/f)
h(Fo)
no temp change

35. formula relating voltage and electric field
2Pi * sqrt(l/g)
G M/((d/2)^2)
Columbs/second
Ed=V

36. pressure
((Qin) -(Qout))/(Qin)
F/A
m(v^2)/qvB
((Th) -(Tl))/(Th)

37. formula for finding the work function of a metal if the cutoff frequency is known
constant pressure
(V^2)/R
h(Fo)
mV -m(Vo)

38. formula for impluse involving time
J= Ft
rF
K |q||Q|/r^2
AV=(A2)(V2)

39. velocity of waves on a string if tension is known
K |q||Q|/r^2
constant pressure
elastic collision
sqrt(T/(m/))

40. formula to find the gauge pressure at the bottom of a pool
M(Lf)
.5mV^2 + .5KA^2
roegh
delta x = (Vo)t + .5at^2

41. EMF of a battery having internal resistance R
V = (Vo) + at
Columbs/second
V+IR
F/A

42. heat required to melt a substance
BA
constant volume
M(Lf)
-KA

43. formula for finding magnetic flux
delta x = (Vo)t + .5at^2
1/4wavelength
m(v^2)/qvB
BA

44. heat during a cyclic process (net heat)
VI
elastic collision
inelastic collision
deltaU -deltaW

45. formula for finding the magnetic field a distance r from a current carrying wire
frequency never changes for light problems
(Patm) + (Pgauge)
KI/r
(1/Do) + (1/Di) = (1/f)

46. formula to find the absoluate pressure at the bottom of a pool
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)
sqrt(3KT/m)
(V^2)/r

47. new wavelength of light as it enters a new substance
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)
qE
e=mc^2

48. formula for the wavelength (debroglie wavelength) of a moving particle
V^2=(Vo)^2 +2a*change in x
(1/Do) + (1/Di) = (1/f)
hc/wavelength
h/mv

49. force of gravity between two objects of mass m
KI/r
roeVg
GM*M/(r^2)
deltaU = deltaQ + deltaW

50. the electric force between two objects of charge Q
(3/2)nRdeltaT
K |q||Q|/r^2
(hc/wavelength)=h(Fo) +(Vs)
.5mV^2 + .5KA^2