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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 finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
roegh
G M/((d/2)^2)
VI
no heat flow

2. EMF of a battery having internal resistance R
(Patm) + (Pgauge)
V+IR
no force (right hand rule)
2nt=mwavelength

3. force of friction
E/B
elastic collision
(Fn)(mu)
F/A

4. focal length of a mirror with radius d
joules/second
inelastic collision
(3/2)nRdeltaT
d/2

5. heat required to melt a substance
sqrt(3KT/m)
M(Lf)
qE
FV

6. isothermal
no temp change
h/wavelength
no heat flow
KQ/r

7. type of collision where objects stick togerther
(1/Do) + (1/Di) = (1/f)
perfectly inelastic collision
K |q||Q|/r^2
qV

8. force a charge in a Bfield
2nt=mwavelength
qVB
(1/Do) + (1/Di) = (1/f)
(3/2)nRdeltaT

9. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
m(v^2)/qvB
V^2=(Vo)^2 +2a*change in x
(EMF)Rt/10

10. formula for torque
1/4wavelength
rF
e=mc^2
BLv

11. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
pL/A
AV=(A2)(V2)
(EMF)Rt/10
Q=CV

12. formula for efficiency of a heat engine using work out
no heat flow
1/2wavelength
(Wnet)/(Qin)
mgCostheta(mu)d

13. formula equating energy and mass
e=mc^2
(V^2)/r
Joules/Columb
J= Ft

14. force of gravity between two objects of mass m
M(Lf)
joules/second
no temp change
GM*M/(r^2)

15. radius of curvature of a charged particle as it enters a uniform magnetic field
K |q||Q|/r^2
-KA
m(v^2)/qvB
no temp change

16. heat required to change temperature of a substance
MC(deltaT)
1/2wavelength
d/2
qrB/m

17. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
pL/A
(I^2)RT
KQ/r
E/B

18. formula for height of the block (at the start of a pendulum string) in terms of theta and L
VI
L -LCostheta
(3/2)nRdeltaT
KQ/r

19. energy stored in a capacitor
M(Lf)
.5CV^2 or .5 Q^2/C or .5QV
inelastic collision
opposite motion

20. total capacitance of capacitors in series
Columbs/second
m(v^2)/qvB
(Fn)(mu)
1/((1/C)+(1/C)..........)

21. natural frequency of a closed tube of length L
VI
V^2=(Vo)^2 +2a*change in x
pL/A
1/4wavelength

22. isometric
((Qin) -(Qout))/(Qin)
sqrt(3KT/m)
constant volume
e=mc^2

23. third kinematic
KQ/r
V^2=(Vo)^2 +2a*change in x
V = (Vo) + at
F/A

24. snells law
m(v^2)/qvB
(No)(wavelength)=(Nn)(new wavelength)
nSintheta=nsintheta
e=mc^2

25. natural frequency of an open tube of length L
qE
1/2wavelength
AV=(A2)(V2)
no temp change

26. formula for centripetal acceleration
qV
-KA
constant pressure
(V^2)/r

27. formula for Carnot efficiency
sqrt(3KT/m)
((Th) -(Tl))/(Th)
constant volume
BLv

28. the force on a charge moving parallel to a magnetic field
(N2)/(N1)
1/4wavelength
elastic collision
no force (right hand rule)

29. velocity of an electrion as it exitws from the hole
1/((1/C)+(1/C)..........)
roegh
(V^2)/R
qrB/m

30. isobaric
(Patm) + (Pgauge)
mV -m(Vo)
frequency never changes for light problems
constant pressure

31. resistance of a wire
Ed=V
((Th) -(Tl))/(Th)
(I^2)R
pL/A

32. formula for finding the momentum of a photon
(I^2)RT
h/wavelength
F/A
e=mc^2

33. formula for energy of a spring mass when spring is at maximum displacement
1/((1/C)+(1/C)..........)
.5KA^2
qE
(Fn)(mu)

34. magnification equation
constant pressure
constant volume
h/mv
(Di)/(Do) or (Hi)/(Ho)

35. formula for buoyant force
L -LCostheta
e=mc^2
roeVg
FV

36. voltage induced in a rod moving through a uniform magnetic field
BLv
inelastic collision
MC(deltaT)
KI/r

37. work energy theorum
.5CV^2 or .5 Q^2/C or .5QV
Joules/Columb
deltaU -deltaW
net work = delta K

38. formula for impulse involving momentum
mV -m(Vo)
(I^2)R
((Th) -(Tl))/(Th)
MC(deltaT)

39. formula for finding magnetic flux
BA
no heat flow
qV
E/B

40. first kinematic
V = (Vo) + at
M(Lf)
roegh
sqrt(3KT/m)

41. formula for finding the magnetic field a distance r from a current carrying wire
roegh
KI/r
(I^2)RT
BLv

42. formula for the wavelength (debroglie wavelength) of a moving particle
frequency never changes for light problems
V = (Vo) + at
h/mv
roegh

43. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
.5CV^2 or .5 Q^2/C or .5QV
hc/wavelength
(I^2)RT
V+IR

44. adibatic
(I^2)R
G M/((d/2)^2)
Columbs/second
no heat flow

45. forgotten power equation
no heat flow
FV
h/mv
V^2=(Vo)^2 +2a*change in x

46. formula relating voltage and electric field
Ed=V
(Di)/(Do) or (Hi)/(Ho)
d/2
inelastic collision

47. type of collision where K is conserved
FV
.5mV^2 + .5KA^2
elastic collision
roeVg

48. electric potential a distance r from a charge
1/((1/C)+(1/C)..........)
KQ/r
((Th) -(Tl))/(Th)
.5CV^2 or .5 Q^2/C or .5QV

49. formula for change in internal energy in a cosnstat volume PV process
h/mv
(3/2)nRdeltaT
((Th) -(Tl))/(Th)
(V^2)/R

50. the units of power other than watts
L -LCostheta
joules/second
qrB/m
(Patm) + (Pgauge)