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. heat during an isometric process
(3/2)nRdeltaT
0
hc/wavelength
n(Cv)(deltaT)

2. radius of curvature of a charged particle as it enters a uniform magnetic field
((Qin) -(Qout))/(Qin)
-KA
m(v^2)/qvB
e=mc^2

3. formula to find the absoluate pressure at the bottom of a pool
delta x = (Vo)t + .5at^2
(Patm) + (Pgauge)
V+IR
net work = delta K

4. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(I^2)RT
sqrt(T/(m/))
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)

5. force a charge in a Bfield
Columbs/second
(3/2)nRdeltaT
sqrt(T/(m/))
qVB

6. formula for change in internal energy in a cosnstat volume PV process
joules/second
KQ/r
(Fn)(mu)
(3/2)nRdeltaT

7. formula for critical angle
(N2)/(N1)
2nt=mwavelength
constant pressure
elastic collision

8. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
-KA
Ed=V
V+IR

9. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
mV -m(Vo)
0
qV
G M/((d/2)^2)

10. formula for impulse involving momentum
constant volume
pL/A
mV -m(Vo)
elastic collision

11. velocity of a molecule of gas
V = (Vo) + at
constant pressure
sqrt(3KT/m)
perfectly inelastic collision

12. isobaric
1/((1/C)+(1/C)..........)
h/wavelength
constant pressure
J= Ft

13. work energy theorum
mgCostheta(mu)d
Ed=V
n(Cv)(deltaT)
net work = delta K

14. hooke's law force of a spring
Columbs/second
sqrt(T/(m/))
((Th) -(Tl))/(Th)
-KA

15. formula for impluse involving time
J= Ft
(V^2)/R
V^2=(Vo)^2 +2a*change in x
BA

16. change in internal energy during a cyclic process
constant pressure
m(v^2)/qvB
0
no temp change

17. the electric force between two objects of charge Q
(hc/wavelength)=h(Fo) +(Vs)
E/B
K |q||Q|/r^2
roegh

18. focal length of a mirror with radius d
V+IR
V^2=(Vo)^2 +2a*change in x
d/2
roegh

19. formula for finding the momentum of a photon
dSintheta=mwavelength
h/wavelength
(Fn)(mu)
sqrt(T/(m/))

20. formula for finding the magnetic field a distance r from a current carrying wire
E/B
1/2wavelength
KI/r
rF

21. formula relating voltage and electric field
h(Fo)
L -LCostheta
Ed=V
pL/A

22. voltage induced in a rod moving through a uniform magnetic field
opposite motion
(Fn)(mu)
BLv
((Th) -(Tl))/(Th)

23. formula for period of a pendulum
2Pi * sqrt(l/g)
(V^2)/R
rF
n(Cv)(deltaT)

24. formula for constructive interference in a diffraction grating
k|Q|/r^2
perfectly inelastic collision
dSintheta=mwavelength
qVB

25. formula for finding magnetic flux
BA
.5CV^2 or .5 Q^2/C or .5QV
(Wnet)/(Qin)
qV

26. force of friction
0
(Fn)(mu)
(V^2)/R
deltaU -deltaW

27. natural frequency of a closed tube of length L
n(Cv)(deltaT)
1/4wavelength
(3/2)nRdeltaT
K |q||Q|/r^2

28. first kinematic
m(v^2)/qvB
V = (Vo) + at
1/4wavelength
G M/((d/2)^2)

29. electric field in a distance r from a charge
1/4wavelength
e=mc^2
k|Q|/r^2
(Wnet)/(Qin)

30. magnification equation
(Di)/(Do) or (Hi)/(Ho)
V^2=(Vo)^2 +2a*change in x
KQ/r
qrB/m

31. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
opposite motion
((Th) -(Tl))/(Th)
.5mV^2 + .5KA^2
frequency never changes for light problems

32. lens/mirror equation
2nt=mwavelength
((Th) -(Tl))/(Th)
(1/Do) + (1/Di) = (1/f)
K |q||Q|/r^2

33. total capacitance of capacitors in series
roeVg
KQ/r
1/((1/C)+(1/C)..........)
1/2wavelength

34. formula for constructive interference in a thin membrane with two phase changes
m(v^2)/qvB
perfectly inelastic collision
Columbs/second
2nt=mwavelength

35. formula for Carnot efficiency
no temp change
mgCostheta(mu)d
((Th) -(Tl))/(Th)
(V^2)/r

36. formula for buoyant force
GM*M/(r^2)
m(v^2)/qvB
constant volume
roeVg

37. formula for efficiency not using work out
no heat flow
Joules/Columb
((Qin) -(Qout))/(Qin)
G M/((d/2)^2)

38. electric potential a distance r from a charge
((Th) -(Tl))/(Th)
h(Fo)
-KA
KQ/r

39. adibatic
qE
frequency never changes for light problems
no heat flow
(Fn)(mu)

40. equation of continuity
pL/A
KQ/r
AV=(A2)(V2)
h(Fo)

41. isothermal
no temp change
(EMF)Rt/10
MC(deltaT)
2nt=mwavelength

42. the force on a charge in an electric field
V^2=(Vo)^2 +2a*change in x
2nt=mwavelength
KQ/r
qE

43. natural frequency of an open tube of length L
1/2wavelength
frequency never changes for light problems
E/B
GM*M/(r^2)

44. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
opposite motion
Ed=V
G M/((d/2)^2)
k|Q|/r^2

45. what direction is friction?
(Patm) + (Pgauge)
opposite motion
(Wnet)/(Qin)
joules/second

46. formula for charge stored in a capciator
h(Fo)
E/B
Q=CV
.5CV^2 or .5 Q^2/C or .5QV

47. formula for power with Voltage and resistance
roeVg
.5CV^2 or .5 Q^2/C or .5QV
FV
(V^2)/R

48. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
perfectly inelastic collision
E/B
G M/((d/2)^2)
BA

49. second kinematic
J= Ft
delta x = (Vo)t + .5at^2
d/2
hc/wavelength

50. formula equating energy and mass
e=mc^2
G M/((d/2)^2)
V^2=(Vo)^2 +2a*change in x
constant pressure