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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. force a charge in a Bfield
qVB
((Th) -(Tl))/(Th)
h/mv
MC(deltaT)

2. work energy theorum
0
V = (Vo) + at
net work = delta K
.5CV^2 or .5 Q^2/C or .5QV

3. heat required to melt a substance
M(Lf)
F/A
no force (right hand rule)
1/2wavelength

4. focal length of a mirror with radius d
roegh
d/2
V+IR
Columbs/second

5. formula for torque
rF
deltaU = deltaQ + deltaW
L -LCostheta
mV -m(Vo)

6. the force on a charge moving parallel to a magnetic field
no force (right hand rule)
KI/r
1/4wavelength
roegh

7. formula for impluse involving time
qE
.5mV^2 + .5KA^2
J= Ft
GM*M/(r^2)

8. the units of current other than amps
MC(deltaT)
FV
Columbs/second
.5mV^2 + .5KA^2

9. formula for constructive interference in a thin membrane with two phase changes
-KA
2nt=mwavelength
E/B
AV=(A2)(V2)

10. velocity of a molecule of gas
sqrt(3KT/m)
M(Lf)
(I^2)RT
h/mv

11. natural frequency of a closed tube of length L
VI
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)
d/2

12. heat during a cyclic process (net heat)
mV -m(Vo)
joules/second
deltaU -deltaW
(Fn)(mu)

13. magnification equation
e=mc^2
L -LCostheta
(Di)/(Do) or (Hi)/(Ho)
M(Lf)

14. change in internal energy during a cyclic process
no heat flow
1/((1/C)+(1/C)..........)
1/2wavelength
0

15. pressure
1/4wavelength
F/A
(1/Do) + (1/Di) = (1/f)
FV

16. isobaric
m(v^2)/qvB
opposite motion
constant pressure
roeVg

17. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
M(Lf)
roeVg
constant pressure
(I^2)RT

18. second kinematic
roegh
1/4wavelength
delta x = (Vo)t + .5at^2
(V^2)/r

19. total capacitance of capacitors in series
((Qin) -(Qout))/(Qin)
-KA
1/((1/C)+(1/C)..........)
e=mc^2

20. the units of power other than watts
(V^2)/R
joules/second
h/wavelength
KI/r

21. isothermal
no temp change
deltaU -deltaW
M(Lf)
roeVg

22. resistance of a wire
pL/A
hc/wavelength
e=mc^2
F/A

23. electric potential a distance r from a charge
Ed=V
KQ/r
frequency never changes for light problems
constant volume

24. adibatic
no heat flow
BA
1/((1/C)+(1/C)..........)
mgCostheta(mu)d

25. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
BLv
(EMF)Rt/10
opposite motion
V = (Vo) + at

26. energy stored in a capacitor
roeVg
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV
rF

27. forgotten power equation
qV
Q=CV
FV
M(Lf)

28. formula equating energy and mass
V^2=(Vo)^2 +2a*change in x
inelastic collision
1/4wavelength
e=mc^2

29. formula for efficiency of a heat engine using work out
(Fn)(mu)
KI/r
(Wnet)/(Qin)
GM*M/(r^2)

30. units for voltage other than volts
Joules/Columb
G M/((d/2)^2)
E/B
Ed=V

31. formula for power with Voltage and resistance
(1/Do) + (1/Di) = (1/f)
2Pi * sqrt(l/g)
(Fn)(mu)
(V^2)/R

32. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
hc/wavelength
1/((1/C)+(1/C)..........)
V+IR

33. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
roegh
(Di)/(Do) or (Hi)/(Ho)
(N2)/(N1)
G M/((d/2)^2)

34. formula for power with current and resistance
0
(I^2)R
frequency never changes for light problems
Q=CV

35. type of collision where K is conserved
elastic collision
mgCostheta(mu)d
deltaU -deltaW
perfectly inelastic collision

36. lens/mirror equation
1/2wavelength
(1/Do) + (1/Di) = (1/f)
KQ/r
VI

37. force of frction on an incline
mgCostheta(mu)d
sqrt(3KT/m)
(EMF)Rt/10
(N2)/(N1)

38. heat during an isometric process
(Wnet)/(Qin)
.5mV^2 + .5KA^2
n(Cv)(deltaT)
(I^2)R

39. force of friction
sqrt(T/(m/))
(Fn)(mu)
Q=CV
G M/((d/2)^2)

40. natural frequency of an open tube of length L
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
L -LCostheta
BLv

41. new frequency of light as it enters a new substance
frequency never changes for light problems
AV=(A2)(V2)
m(v^2)/qvB
no force (right hand rule)

42. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
-KA
e=mc^2
(V^2)/R

43. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
pL/A
2nt=mwavelength
2Pi * sqrt(l/g)

44. formula for power with current and voltage
VI
(I^2)RT
K |q||Q|/r^2
pL/A

45. formula for finding the momentum of a photon
h/wavelength
inelastic collision
sqrt(T/(m/))
(V^2)/r

46. formula for energy of a spring mass when spring is at maximum displacement
roegh
e=mc^2
.5KA^2
(No)(wavelength)=(Nn)(new wavelength)

47. formula for charge stored in a capciator
mV -m(Vo)
constant pressure
Q=CV
n(Cv)(deltaT)

48. hooke's law force of a spring
-KA
sqrt(3KT/m)
h/wavelength
m(v^2)/qvB

49. equation for the first law of thermodynamics
(Fn)(mu)
qrB/m
no force (right hand rule)
deltaU = deltaQ + deltaW

50. formula for finding magnetic flux
V^2=(Vo)^2 +2a*change in x
rF
BA
perfectly inelastic collision