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. force of friction
nSintheta=nsintheta
(Fn)(mu)
Ed=V
Q=CV

2. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
.5KA^2
sqrt(3KT/m)
G M/((d/2)^2)

3. formula for finding magnetic flux
(V^2)/R
qrB/m
BA
(I^2)RT

4. hooke's law force of a spring
Columbs/second
((Th) -(Tl))/(Th)
-KA
AV=(A2)(V2)

5. force of gravity between two objects of mass m
GM*M/(r^2)
(V^2)/R
(1/Do) + (1/Di) = (1/f)
(EMF)Rt/10

6. velocity of waves on a string if tension is known
(V^2)/r
constant volume
sqrt(T/(m/))
pL/A

7. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
G M/((d/2)^2)
e=mc^2
.5mV^2 + .5KA^2
M(Lf)

8. type of collision where objects stick togerther
deltaU = deltaQ + deltaW
Q=CV
perfectly inelastic collision
d/2

9. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
K |q||Q|/r^2
elastic collision
Joules/Columb

10. magnification equation
(Fn)(mu)
(Di)/(Do) or (Hi)/(Ho)
deltaU -deltaW
2nt=mwavelength

11. heat during an isometric process
Q=CV
n(Cv)(deltaT)
(V^2)/r
constant volume

12. forgotten power equation
L -LCostheta
no temp change
FV
elastic collision

13. energy of a photon if wavelength is known
hc/wavelength
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
Q=CV

14. formula for finding the work function of a metal if the cutoff frequency is known
no heat flow
2nt=mwavelength
h(Fo)
.5CV^2 or .5 Q^2/C or .5QV

15. electric field in a distance r from a charge
(Patm) + (Pgauge)
nSintheta=nsintheta
k|Q|/r^2
mgCostheta(mu)d

16. the force on a charge moving parallel to a magnetic field
E/B
(1/Do) + (1/Di) = (1/f)
h/wavelength
no force (right hand rule)

17. formula for Carnot efficiency
V+IR
m(v^2)/qvB
((Th) -(Tl))/(Th)
no force (right hand rule)

18. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(Patm) + (Pgauge)
hc/wavelength
qV
Ed=V

19. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
qV
1/2wavelength
nSintheta=nsintheta
E/B

20. formula for change in internal energy in a cosnstat volume PV process
(Fn)(mu)
G M/((d/2)^2)
(3/2)nRdeltaT
opposite motion

21. isometric
constant volume
joules/second
(Fn)(mu)
-KA

22. formula for energy of a spring mass when spring is at maximum displacement
1/4wavelength
1/2wavelength
-KA
.5KA^2

23. pressure
F/A
joules/second
Ed=V
e=mc^2

24. lens/mirror equation
k|Q|/r^2
n(Cv)(deltaT)
(1/Do) + (1/Di) = (1/f)
(No)(wavelength)=(Nn)(new wavelength)

25. formula for constructive interference in a diffraction grating
GM*M/(r^2)
mgCostheta(mu)d
e=mc^2
dSintheta=mwavelength

26. force of frction on an incline
.5mV^2 + .5KA^2
(No)(wavelength)=(Nn)(new wavelength)
mgCostheta(mu)d
dSintheta=mwavelength

27. 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)
V = (Vo) + at
constant volume
(1/Do) + (1/Di) = (1/f)

28. the force on a charge in an electric field
1/2wavelength
opposite motion
qE
V^2=(Vo)^2 +2a*change in x

29. equation for the first law of thermodynamics
elastic collision
h/wavelength
((Qin) -(Qout))/(Qin)
deltaU = deltaQ + deltaW

30. formula for centripetal acceleration
frequency never changes for light problems
(V^2)/r
h/wavelength
(3/2)nRdeltaT

31. equation of continuity
(3/2)nRdeltaT
d/2
AV=(A2)(V2)
VI

32. radius of curvature of a charged particle as it enters a uniform magnetic field
Joules/Columb
FV
m(v^2)/qvB
no heat flow

33. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
2Pi * sqrt(l/g)
MC(deltaT)
(I^2)RT
h/mv

34. snells law
no temp change
nSintheta=nsintheta
1/4wavelength
KQ/r

35. EMF of a battery having internal resistance R
V+IR
(3/2)nRdeltaT
(I^2)RT
(V^2)/r

36. new frequency of light as it enters a new substance
J= Ft
1/4wavelength
frequency never changes for light problems
(hc/wavelength)=h(Fo) +(Vs)

37. formula for the wavelength (debroglie wavelength) of a moving particle
VI
h/mv
1/2wavelength
F/A

38. formula for impulse involving momentum
deltaU = deltaQ + deltaW
mV -m(Vo)
delta x = (Vo)t + .5at^2
no force (right hand rule)

39. formula equating energy and mass
((Qin) -(Qout))/(Qin)
Joules/Columb
e=mc^2
qE

40. the electric force between two objects of charge Q
K |q||Q|/r^2
2nt=mwavelength
-KA
(EMF)Rt/10

41. velocity of an electrion as it exitws from the hole
roegh
2nt=mwavelength
qE
qrB/m

42. isobaric
constant pressure
Q=CV
F/A
h/mv

43. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
Ed=V
nSintheta=nsintheta
qE
(EMF)Rt/10

44. resistance of a wire
2nt=mwavelength
roegh
d/2
pL/A

45. heat required to melt a substance
M(Lf)
(I^2)R
constant volume
(Fn)(mu)

46. type of collision where K is not conserved
(Wnet)/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
inelastic collision
.5mV^2 + .5KA^2

47. formula for power with current and voltage
1/((1/C)+(1/C)..........)
VI
((Qin) -(Qout))/(Qin)
h/wavelength

48. formula for power with Voltage and resistance
constant volume
K |q||Q|/r^2
(V^2)/R
nSintheta=nsintheta

49. velocity of a molecule of gas
Q=CV
sqrt(3KT/m)
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)

50. third kinematic
V^2=(Vo)^2 +2a*change in x
BA
roegh
2nt=mwavelength