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. third kinematic
(V^2)/R
joules/second
dSintheta=mwavelength
V^2=(Vo)^2 +2a*change in x

2. isothermal
2Pi * sqrt(l/g)
no temp change
(No)(wavelength)=(Nn)(new wavelength)
(EMF)Rt/10

3. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
Columbs/second
(I^2)RT
d/2
rF

4. energy stored in a capacitor
VI
inelastic collision
.5CV^2 or .5 Q^2/C or .5QV
qE

5. formula for period of a pendulum
2Pi * sqrt(l/g)
Columbs/second
frequency never changes for light problems
1/2wavelength

6. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
E/B
GM*M/(r^2)
1/((1/C)+(1/C)..........)
(EMF)Rt/10

7. equation for the first law of thermodynamics
-KA
net work = delta K
deltaU = deltaQ + deltaW
h/mv

8. natural frequency of an open tube of length L
BLv
mV -m(Vo)
V = (Vo) + at
1/2wavelength

9. the units of current other than amps
constant pressure
m(v^2)/qvB
Columbs/second
V = (Vo) + at

10. velocity of waves on a string if tension is known
(V^2)/r
sqrt(T/(m/))
((Th) -(Tl))/(Th)
mV -m(Vo)

11. the units of power other than watts
joules/second
mV -m(Vo)
nSintheta=nsintheta
1/4wavelength

12. equation of continuity
AV=(A2)(V2)
roegh
V = (Vo) + at
mV -m(Vo)

13. EMF of a battery having internal resistance R
V+IR
((Qin) -(Qout))/(Qin)
elastic collision
qE

14. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(3/2)nRdeltaT
G M/((d/2)^2)
qV
M(Lf)

15. formula for finding the work function of a metal if the cutoff frequency is known
(Fn)(mu)
h(Fo)
G M/((d/2)^2)
constant pressure

16. formula for efficiency of a heat engine using work out
qVB
(Wnet)/(Qin)
perfectly inelastic collision
(V^2)/R

17. hooke's law force of a spring
inelastic collision
((Th) -(Tl))/(Th)
pL/A
-KA

18. second kinematic
delta x = (Vo)t + .5at^2
FV
no force (right hand rule)
no heat flow

19. snells law
Columbs/second
(I^2)R
nSintheta=nsintheta
(N2)/(N1)

20. pressure
h/mv
qV
F/A
BLv

21. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
BLv
(Fn)(mu)
.5mV^2 + .5KA^2
qV

22. force a charge in a Bfield
qVB
qE
V+IR
elastic collision

23. resistance of a wire
(V^2)/r
pL/A
V = (Vo) + at
roeVg

24. force of gravity between two objects of mass m
h(Fo)
mgCostheta(mu)d
GM*M/(r^2)
V^2=(Vo)^2 +2a*change in x

25. force of frction on an incline
-KA
mgCostheta(mu)d
Columbs/second
deltaU -deltaW

26. formula for finding the magnetic field a distance r from a current carrying wire
(N2)/(N1)
KI/r
1/2wavelength
G M/((d/2)^2)

27. formula for power with Voltage and resistance
no heat flow
(V^2)/R
(Di)/(Do) or (Hi)/(Ho)
inelastic collision

28. new frequency of light as it enters a new substance
qV
qrB/m
frequency never changes for light problems
rF

29. forgotten power equation
(Di)/(Do) or (Hi)/(Ho)
FV
.5mV^2 + .5KA^2
mV -m(Vo)

30. heat required to melt a substance
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
M(Lf)
0

31. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
qV
(hc/wavelength)=h(Fo) +(Vs)
pL/A
roegh

32. electric field in a distance r from a charge
k|Q|/r^2
1/4wavelength
h/wavelength
BA

33. focal length of a mirror with radius d
d/2
(Patm) + (Pgauge)
rF
(No)(wavelength)=(Nn)(new wavelength)

34. formula for impluse involving time
delta x = (Vo)t + .5at^2
J= Ft
qV
V+IR

35. formula for constructive interference in a thin membrane with two phase changes
constant volume
m(v^2)/qvB
Columbs/second
2nt=mwavelength

36. isometric
Columbs/second
constant volume
qV
VI

37. first kinematic
V = (Vo) + at
KQ/r
((Th) -(Tl))/(Th)
(N2)/(N1)

38. the electric force between two objects of charge Q
K |q||Q|/r^2
joules/second
net work = delta K
roeVg

39. formula for centripetal acceleration
dSintheta=mwavelength
h(Fo)
elastic collision
(V^2)/r

40. the force on a charge in an electric field
roegh
no force (right hand rule)
qE
h/wavelength

41. formula equating energy and mass
e=mc^2
k|Q|/r^2
1/2wavelength
rF

42. formula for finding the momentum of a photon
joules/second
Ed=V
roeVg
h/wavelength

43. velocity of an electrion as it exitws from the hole
(N2)/(N1)
BLv
(EMF)Rt/10
qrB/m

44. change in internal energy during a cyclic process
no temp change
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x
0

45. new wavelength of light as it enters a new substance
frequency never changes for light problems
inelastic collision
(3/2)nRdeltaT
(No)(wavelength)=(Nn)(new wavelength)

46. adibatic
net work = delta K
no heat flow
(Fn)(mu)
elastic collision

47. units for voltage other than volts
Joules/Columb
(Di)/(Do) or (Hi)/(Ho)
mV -m(Vo)
hc/wavelength

48. radius of curvature of a charged particle as it enters a uniform magnetic field
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)
m(v^2)/qvB
Joules/Columb

49. formula for height of the block (at the start of a pendulum string) in terms of theta and L
Q=CV
L -LCostheta
(Wnet)/(Qin)
J= Ft

50. magnification equation
(Di)/(Do) or (Hi)/(Ho)
mgCostheta(mu)d
sqrt(T/(m/))
inelastic collision