Test your basic knowledge |

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 buoyant force
roeVg
1/2wavelength
(I^2)RT
m(v^2)/qvB

2. the units of current other than amps
G M/((d/2)^2)
(V^2)/R
sqrt(3KT/m)
Columbs/second

3. type of collision where objects stick togerther
k|Q|/r^2
perfectly inelastic collision
F/A
joules/second

4. formula for finding the magnetic field a distance r from a current carrying wire
frequency never changes for light problems
rF
KI/r
no temp change

5. third kinematic
V = (Vo) + at
V^2=(Vo)^2 +2a*change in x
qVB
J= Ft

6. formula for finding the momentum of a photon
AV=(A2)(V2)
roegh
perfectly inelastic collision
h/wavelength

7. EMF of a battery having internal resistance R
h/wavelength
sqrt(3KT/m)
V+IR
roeVg

8. velocity of a molecule of gas
joules/second
deltaU = deltaQ + deltaW
sqrt(3KT/m)
pL/A

9. hooke's law force of a spring
(hc/wavelength)=h(Fo) +(Vs)
2nt=mwavelength
-KA
dSintheta=mwavelength

10. electric potential a distance r from a charge
KQ/r
k|Q|/r^2
n(Cv)(deltaT)
frequency never changes for light problems

11. the electric force between two objects of charge Q
K |q||Q|/r^2
roegh
(3/2)nRdeltaT
-KA

12. the force on a charge moving parallel to a magnetic field
BA
mV -m(Vo)
no force (right hand rule)
no temp change

13. new frequency of light as it enters a new substance
L -LCostheta
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
J= Ft

14. formula for impluse involving time
J= Ft
KQ/r
elastic collision
e=mc^2

15. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
FV
delta x = (Vo)t + .5at^2
G M/((d/2)^2)
MC(deltaT)

16. equation of continuity
2Pi * sqrt(l/g)
Joules/Columb
AV=(A2)(V2)
(No)(wavelength)=(Nn)(new wavelength)

17. the force on a charge in an electric field
(Patm) + (Pgauge)
FV
qE
VI

18. velocity of waves on a string if tension is known
KQ/r
sqrt(T/(m/))
no force (right hand rule)
qrB/m

19. formula for the wavelength (debroglie wavelength) of a moving particle
Q=CV
m(v^2)/qvB
h/mv
h(Fo)

20. focal length of a mirror with radius d
d/2
qE
opposite motion
constant volume

21. electric field in a distance r from a charge
FV
d/2
.5mV^2 + .5KA^2
k|Q|/r^2

22. lens/mirror equation
BA
(1/Do) + (1/Di) = (1/f)
opposite motion
V = (Vo) + at

23. force a charge in a Bfield
-KA
deltaU -deltaW
qVB
MC(deltaT)

24. the units of power other than watts
((Th) -(Tl))/(Th)
joules/second
sqrt(T/(m/))
Q=CV

25. isometric
constant volume
m(v^2)/qvB
deltaU -deltaW
G M/((d/2)^2)

26. type of collision where K is conserved
E/B
(I^2)RT
elastic collision
dSintheta=mwavelength

27. second kinematic
sqrt(T/(m/))
(EMF)Rt/10
no force (right hand rule)
delta x = (Vo)t + .5at^2

28. what direction is friction?
(V^2)/R
hc/wavelength
opposite motion
net work = delta K

29. heat required to melt a substance
no force (right hand rule)
M(Lf)
h(Fo)
(V^2)/r

30. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
k|Q|/r^2
mV -m(Vo)
dSintheta=mwavelength
.5mV^2 + .5KA^2

31. radius of curvature of a charged particle as it enters a uniform magnetic field
(I^2)R
m(v^2)/qvB
(V^2)/r
(I^2)RT

32. change in internal energy during a cyclic process
delta x = (Vo)t + .5at^2
K |q||Q|/r^2
V+IR
0

33. formula equating energy and mass
mV -m(Vo)
.5mV^2 + .5KA^2
qE
e=mc^2

34. voltage induced in a rod moving through a uniform magnetic field
(hc/wavelength)=h(Fo) +(Vs)
BLv
constant volume
((Th) -(Tl))/(Th)

35. energy stored in a capacitor
BA
1/((1/C)+(1/C)..........)
qV
.5CV^2 or .5 Q^2/C or .5QV

36. new wavelength of light as it enters a new substance
BA
VI
(No)(wavelength)=(Nn)(new wavelength)
hc/wavelength

37. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
L -LCostheta
qrB/m
K |q||Q|/r^2

38. formula for period of a pendulum
L -LCostheta
2Pi * sqrt(l/g)
Columbs/second
(3/2)nRdeltaT

39. formula for impulse involving momentum
mV -m(Vo)
AV=(A2)(V2)
inelastic collision
.5KA^2

40. formula for power with current and voltage
.5CV^2 or .5 Q^2/C or .5QV
VI
frequency never changes for light problems
G M/((d/2)^2)

41. magnification equation
BLv
(Di)/(Do) or (Hi)/(Ho)
roegh
L -LCostheta

42. force of gravity between two objects of mass m
GM*M/(r^2)
mgCostheta(mu)d
KI/r
hc/wavelength

43. formula for constructive interference in a diffraction grating
(EMF)Rt/10
(Wnet)/(Qin)
dSintheta=mwavelength
1/4wavelength

44. formula for power with current and resistance
V^2=(Vo)^2 +2a*change in x
(I^2)R
frequency never changes for light problems
((Qin) -(Qout))/(Qin)

45. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
(I^2)R
1/((1/C)+(1/C)..........)
V+IR

46. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(Di)/(Do) or (Hi)/(Ho)
.5KA^2
E/B
KI/r

47. velocity of an electrion as it exitws from the hole
qrB/m
qVB
rF
m(v^2)/qvB

48. formula for change in internal energy in a cosnstat volume PV process
h/wavelength
sqrt(T/(m/))
(3/2)nRdeltaT
(1/Do) + (1/Di) = (1/f)

49. heat during an isometric process
roeVg
n(Cv)(deltaT)
E/B
MC(deltaT)

50. formula relating voltage and electric field
((Th) -(Tl))/(Th)
k|Q|/r^2
Ed=V
((Qin) -(Qout))/(Qin)