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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. formula for torque
0
(Di)/(Do) or (Hi)/(Ho)
joules/second
rF

2. formula for change in internal energy in a cosnstat volume PV process
BA
Ed=V
(3/2)nRdeltaT
(EMF)Rt/10

3. the electric force between two objects of charge Q
hc/wavelength
1/((1/C)+(1/C)..........)
L -LCostheta
K |q||Q|/r^2

4. the units of power other than watts
joules/second
n(Cv)(deltaT)
roegh
roeVg

5. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
constant pressure
KI/r
(No)(wavelength)=(Nn)(new wavelength)
(EMF)Rt/10

6. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
2Pi * sqrt(l/g)
L -LCostheta
roeVg

7. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
no heat flow
roeVg
hc/wavelength

8. formula for finding the work function of a metal if the cutoff frequency is known
(V^2)/R
(V^2)/r
h(Fo)
(Patm) + (Pgauge)

9. formula for power with current and voltage
VI
qV
mV -m(Vo)
AV=(A2)(V2)

10. second kinematic
no temp change
((Qin) -(Qout))/(Qin)
delta x = (Vo)t + .5at^2
J= Ft

11. formula for the wavelength (debroglie wavelength) of a moving particle
KI/r
KQ/r
h/mv
qE

12. formula for finding magnetic flux
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV
BA
rF

13. natural frequency of a closed tube of length L
1/4wavelength
K |q||Q|/r^2
V^2=(Vo)^2 +2a*change in x
(Di)/(Do) or (Hi)/(Ho)

14. first kinematic
V = (Vo) + at
dSintheta=mwavelength
2nt=mwavelength
n(Cv)(deltaT)

15. formula for impluse involving time
.5mV^2 + .5KA^2
h/wavelength
qrB/m
J= Ft

16. formula for energy of a spring mass when spring is at maximum displacement
joules/second
mV -m(Vo)
delta x = (Vo)t + .5at^2
.5KA^2

17. type of collision where K is conserved
frequency never changes for light problems
2nt=mwavelength
(No)(wavelength)=(Nn)(new wavelength)
elastic collision

18. formula for critical angle
dSintheta=mwavelength
Columbs/second
(N2)/(N1)
(V^2)/r

19. resistance of a wire
pL/A
k|Q|/r^2
rF
2Pi * sqrt(l/g)

20. EMF of a battery having internal resistance R
V+IR
E/B
KI/r
.5mV^2 + .5KA^2

21. third kinematic
V^2=(Vo)^2 +2a*change in x
L -LCostheta
0
(No)(wavelength)=(Nn)(new wavelength)

22. equation of continuity
2nt=mwavelength
AV=(A2)(V2)
VI
(Wnet)/(Qin)

23. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
KQ/r
-KA
qV
n(Cv)(deltaT)

24. snells law
0
inelastic collision
V+IR
nSintheta=nsintheta

25. type of collision where K is not conserved
J= Ft
roeVg
1/4wavelength
inelastic collision

26. formula for charge stored in a capciator
h(Fo)
no heat flow
(I^2)R
Q=CV

27. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
qV
constant pressure
(N2)/(N1)

28. heat required to change temperature of a substance
no heat flow
MC(deltaT)
hc/wavelength
.5mV^2 + .5KA^2

29. force of friction
(Fn)(mu)
(Patm) + (Pgauge)
no force (right hand rule)
Ed=V

30. formula for impulse involving momentum
AV=(A2)(V2)
KI/r
1/((1/C)+(1/C)..........)
mV -m(Vo)

31. radius of curvature of a charged particle as it enters a uniform magnetic field
Joules/Columb
k|Q|/r^2
m(v^2)/qvB
h(Fo)

32. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
joules/second
(I^2)RT
.5KA^2
rF

33. formula to find the gauge pressure at the bottom of a pool
perfectly inelastic collision
sqrt(3KT/m)
mV -m(Vo)
roegh

34. new frequency of light as it enters a new substance
((Qin) -(Qout))/(Qin)
VI
h/mv
frequency never changes for light problems

35. velocity of waves on a string if tension is known
sqrt(T/(m/))
MC(deltaT)
J= Ft
sqrt(3KT/m)

36. focal length of a mirror with radius d
m(v^2)/qvB
deltaU = deltaQ + deltaW
d/2
(I^2)RT

37. electric potential a distance r from a charge
KQ/r
qE
no force (right hand rule)
inelastic collision

38. work energy theorum
elastic collision
net work = delta K
deltaU = deltaQ + deltaW
(EMF)Rt/10

39. total capacitance of capacitors in series
no heat flow
sqrt(3KT/m)
2Pi * sqrt(l/g)
1/((1/C)+(1/C)..........)

40. isobaric
V^2=(Vo)^2 +2a*change in x
E/B
J= Ft
constant pressure

41. adibatic
Ed=V
M(Lf)
no heat flow
E/B

42. energy stored in a capacitor
k|Q|/r^2
(1/Do) + (1/Di) = (1/f)
qE
.5CV^2 or .5 Q^2/C or .5QV

43. hooke's law force of a spring
-KA
sqrt(T/(m/))
E/B
frequency never changes for light problems

44. formula for efficiency not using work out
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2
F/A
((Qin) -(Qout))/(Qin)

45. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
opposite motion
.5CV^2 or .5 Q^2/C or .5QV
hc/wavelength

46. formula equating energy and mass
e=mc^2
(V^2)/r
M(Lf)
L -LCostheta

47. natural frequency of an open tube of length L
V+IR
d/2
qrB/m
1/2wavelength

48. formula for buoyant force
(Fn)(mu)
Columbs/second
rF
roeVg

49. magnification equation
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)
qrB/m
(3/2)nRdeltaT

50. units for voltage other than volts
Joules/Columb
Columbs/second
e=mc^2
(I^2)R