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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. forgotten power equation
FV
E/B
(Patm) + (Pgauge)
h(Fo)

2. snells law
Joules/Columb
nSintheta=nsintheta
perfectly inelastic collision
no temp change

3. natural frequency of an open tube of length L
1/2wavelength
constant volume
L -LCostheta
e=mc^2

4. energy of a photon if wavelength is known
e=mc^2
d/2
elastic collision
hc/wavelength

5. the force on a charge in an electric field
qE
.5CV^2 or .5 Q^2/C or .5QV
V+IR
((Qin) -(Qout))/(Qin)

6. heat during a cyclic process (net heat)
d/2
L -LCostheta
deltaU -deltaW
qrB/m

7. formula for torque
V = (Vo) + at
AV=(A2)(V2)
rF
2nt=mwavelength

8. the units of power other than watts
((Qin) -(Qout))/(Qin)
nSintheta=nsintheta
joules/second
sqrt(3KT/m)

9. heat during an isometric process
n(Cv)(deltaT)
(I^2)R
elastic collision
dSintheta=mwavelength

10. hooke's law force of a spring
GM*M/(r^2)
-KA
qV
constant volume

11. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
deltaU = deltaQ + deltaW
d/2
(Di)/(Do) or (Hi)/(Ho)
G M/((d/2)^2)

12. equation of continuity
-KA
(EMF)Rt/10
MC(deltaT)
AV=(A2)(V2)

13. the force on a charge moving parallel to a magnetic field
(hc/wavelength)=h(Fo) +(Vs)
no force (right hand rule)
pL/A
d/2

14. heat required to melt a substance
(V^2)/r
M(Lf)
h/mv
mgCostheta(mu)d

15. formula for efficiency of a heat engine using work out
sqrt(3KT/m)
pL/A
m(v^2)/qvB
(Wnet)/(Qin)

16. change in internal energy during a cyclic process
sqrt(T/(m/))
m(v^2)/qvB
0
1/2wavelength

17. heat required to change temperature of a substance
qV
FV
MC(deltaT)
F/A

18. formula for finding the momentum of a photon
dSintheta=mwavelength
((Qin) -(Qout))/(Qin)
AV=(A2)(V2)
h/wavelength

19. formula for height of the block (at the start of a pendulum string) in terms of theta and L
d/2
L -LCostheta
(Wnet)/(Qin)
no temp change

20. formula for power with current and resistance
(I^2)R
.5mV^2 + .5KA^2
perfectly inelastic collision
(V^2)/r

21. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
frequency never changes for light problems
Q=CV
M(Lf)

22. isometric
V = (Vo) + at
Columbs/second
constant volume
(hc/wavelength)=h(Fo) +(Vs)

23. adibatic
frequency never changes for light problems
e=mc^2
no heat flow
.5mV^2 + .5KA^2

24. force of frction on an incline
joules/second
(EMF)Rt/10
mgCostheta(mu)d
F/A

25. formula for impulse involving momentum
elastic collision
(Wnet)/(Qin)
(3/2)nRdeltaT
mV -m(Vo)

26. formula to find the gauge pressure at the bottom of a pool
roegh
L -LCostheta
V = (Vo) + at
KQ/r

27. formula for buoyant force
no force (right hand rule)
roeVg
BLv
h/wavelength

28. formula for the wavelength (debroglie wavelength) of a moving particle
elastic collision
h(Fo)
h/mv
k|Q|/r^2

29. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
mgCostheta(mu)d
VI
(hc/wavelength)=h(Fo) +(Vs)
qrB/m

30. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qVB
qV
KQ/r
F/A

31. velocity of an electrion as it exitws from the hole
sqrt(T/(m/))
k|Q|/r^2
qrB/m
no temp change

32. units for voltage other than volts
Joules/Columb
Columbs/second
((Th) -(Tl))/(Th)
deltaU -deltaW

33. formula for period of a pendulum
2Pi * sqrt(l/g)
constant pressure
0
AV=(A2)(V2)

34. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
mgCostheta(mu)d
e=mc^2
KI/r

35. formula for energy of a spring mass when spring is at maximum displacement
joules/second
opposite motion
2Pi * sqrt(l/g)
.5KA^2

36. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
M(Lf)
E/B
(V^2)/R
no heat flow

37. magnification equation
F/A
(Di)/(Do) or (Hi)/(Ho)
(N2)/(N1)
k|Q|/r^2

38. force of friction
roegh
dSintheta=mwavelength
h/wavelength
(Fn)(mu)

39. velocity of a molecule of gas
k|Q|/r^2
GM*M/(r^2)
sqrt(3KT/m)
h/mv

40. force of gravity between two objects of mass m
BA
k|Q|/r^2
mgCostheta(mu)d
GM*M/(r^2)

41. the units of current other than amps
(Wnet)/(Qin)
Columbs/second
Q=CV
M(Lf)

42. formula for centripetal acceleration
h(Fo)
opposite motion
(V^2)/r
d/2

43. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(3/2)nRdeltaT
(EMF)Rt/10
h/wavelength
G M/((d/2)^2)

44. formula for charge stored in a capciator
Q=CV
(1/Do) + (1/Di) = (1/f)
elastic collision
h/wavelength

45. new frequency of light as it enters a new substance
frequency never changes for light problems
qV
.5mV^2 + .5KA^2
h/mv

46. formula for power with Voltage and resistance
Joules/Columb
BA
(V^2)/R
(hc/wavelength)=h(Fo) +(Vs)

47. electric field in a distance r from a charge
BA
k|Q|/r^2
K |q||Q|/r^2
AV=(A2)(V2)

48. formula for constructive interference in a diffraction grating
1/2wavelength
pL/A
dSintheta=mwavelength
G M/((d/2)^2)

49. type of collision where K is conserved
perfectly inelastic collision
elastic collision
d/2
mV -m(Vo)

50. isobaric
opposite motion
1/((1/C)+(1/C)..........)
constant pressure
elastic collision