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. equation of continuity
deltaU -deltaW
AV=(A2)(V2)
d/2
(V^2)/R

2. formula for power with current and resistance
VI
AV=(A2)(V2)
(I^2)R
deltaU -deltaW

3. type of collision where K is not conserved
(I^2)RT
k|Q|/r^2
inelastic collision
(Di)/(Do) or (Hi)/(Ho)

4. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
2Pi * sqrt(l/g)
rF
frequency never changes for light problems

5. heat during an isometric process
constant volume
n(Cv)(deltaT)
m(v^2)/qvB
V = (Vo) + at

6. formula relating voltage and electric field
Columbs/second
qVB
Ed=V
F/A

7. isobaric
constant pressure
joules/second
.5KA^2
Joules/Columb

8. natural frequency of an open tube of length L
n(Cv)(deltaT)
no heat flow
1/2wavelength
V^2=(Vo)^2 +2a*change in x

9. focal length of a mirror with radius d
d/2
joules/second
FV
E/B

10. formula for critical angle
1/4wavelength
(I^2)RT
J= Ft
(N2)/(N1)

11. formula for height of the block (at the start of a pendulum string) in terms of theta and L
sqrt(T/(m/))
2nt=mwavelength
L -LCostheta
AV=(A2)(V2)

12. third kinematic
V^2=(Vo)^2 +2a*change in x
frequency never changes for light problems
roeVg
1/((1/C)+(1/C)..........)

13. formula for energy of a spring mass when spring is at maximum displacement
n(Cv)(deltaT)
.5KA^2
roeVg
d/2

14. new frequency of light as it enters a new substance
(Di)/(Do) or (Hi)/(Ho)
frequency never changes for light problems
mgCostheta(mu)d
h/wavelength

15. formula for constructive interference in a thin membrane with two phase changes
deltaU -deltaW
(V^2)/r
2nt=mwavelength
sqrt(3KT/m)

16. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
joules/second
L -LCostheta
0

17. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
elastic collision
V+IR
hc/wavelength

18. natural frequency of a closed tube of length L
e=mc^2
perfectly inelastic collision
1/4wavelength
(Patm) + (Pgauge)

19. velocity of waves on a string if tension is known
.5CV^2 or .5 Q^2/C or .5QV
G M/((d/2)^2)
sqrt(3KT/m)
sqrt(T/(m/))

20. formula for period of a pendulum
BA
(V^2)/R
.5KA^2
2Pi * sqrt(l/g)

21. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
(EMF)Rt/10
nSintheta=nsintheta
(Di)/(Do) or (Hi)/(Ho)

22. isometric
0
M(Lf)
perfectly inelastic collision
constant volume

23. force of friction
roegh
frequency never changes for light problems
(Fn)(mu)
E/B

24. electric potential a distance r from a charge
V+IR
(1/Do) + (1/Di) = (1/f)
Q=CV
KQ/r

25. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(V^2)/R
(3/2)nRdeltaT
(hc/wavelength)=h(Fo) +(Vs)
qrB/m

26. force of frction on an incline
mgCostheta(mu)d
(3/2)nRdeltaT
no heat flow
qVB

27. magnification equation
opposite motion
(hc/wavelength)=h(Fo) +(Vs)
(I^2)RT
(Di)/(Do) or (Hi)/(Ho)

28. isothermal
no temp change
BLv
constant volume
deltaU -deltaW

29. heat required to change temperature of a substance
GM*M/(r^2)
pL/A
MC(deltaT)
constant volume

30. formula for power with current and voltage
qE
Ed=V
VI
1/2wavelength

31. energy of a photon if wavelength is known
2Pi * sqrt(l/g)
hc/wavelength
KQ/r
G M/((d/2)^2)

32. velocity of an electrion as it exitws from the hole
sqrt(3KT/m)
(I^2)RT
K |q||Q|/r^2
qrB/m

33. hooke's law force of a spring
-KA
sqrt(T/(m/))
V = (Vo) + at
qV

34. first kinematic
J= Ft
V = (Vo) + at
BLv
G M/((d/2)^2)

35. total capacitance of capacitors in series
((Th) -(Tl))/(Th)
BLv
1/((1/C)+(1/C)..........)
2Pi * sqrt(l/g)

36. formula for finding the momentum of a photon
no heat flow
(Fn)(mu)
E/B
h/wavelength

37. the electric force between two objects of charge Q
BA
K |q||Q|/r^2
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)

38. radius of curvature of a charged particle as it enters a uniform magnetic field
h(Fo)
MC(deltaT)
V+IR
m(v^2)/qvB

39. lens/mirror equation
sqrt(3KT/m)
(Patm) + (Pgauge)
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2

40. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
no force (right hand rule)
sqrt(T/(m/))
E/B
joules/second

41. work energy theorum
net work = delta K
Columbs/second
e=mc^2
rF

42. snells law
opposite motion
nSintheta=nsintheta
2Pi * sqrt(l/g)
FV

43. formula for torque
k|Q|/r^2
V = (Vo) + at
rF
.5mV^2 + .5KA^2

44. type of collision where K is conserved
d/2
delta x = (Vo)t + .5at^2
(hc/wavelength)=h(Fo) +(Vs)
elastic collision

45. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
BLv
pL/A
2nt=mwavelength

46. velocity of a molecule of gas
mV -m(Vo)
sqrt(3KT/m)
(I^2)RT
MC(deltaT)

47. EMF of a battery having internal resistance R
nSintheta=nsintheta
constant volume
J= Ft
V+IR

48. formula for constructive interference in a diffraction grating
delta x = (Vo)t + .5at^2
(N2)/(N1)
qV
dSintheta=mwavelength

49. type of collision where objects stick togerther
perfectly inelastic collision
(I^2)R
(Fn)(mu)
GM*M/(r^2)

50. voltage induced in a rod moving through a uniform magnetic field
(V^2)/R
inelastic collision
BLv
-KA