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Test your basic knowledge |
AP Physics Formulas
Start Test
Study First
Subjects
:
science
,
ap
,
physics
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. hooke's law force of a spring
-KA
mgCostheta(mu)d
BA
roeVg
2. formula for constructive interference in a diffraction grating
(I^2)R
dSintheta=mwavelength
Q=CV
G M/((d/2)^2)
3. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
1/4wavelength
perfectly inelastic collision
(Fn)(mu)
4. pressure
KI/r
F/A
E/B
(3/2)nRdeltaT
5. formula for Carnot efficiency
h/wavelength
((Th) -(Tl))/(Th)
(V^2)/R
2Pi * sqrt(l/g)
6. the force on a charge in an electric field
(I^2)RT
(3/2)nRdeltaT
FV
qE
7. isobaric
((Th) -(Tl))/(Th)
no heat flow
(1/Do) + (1/Di) = (1/f)
constant pressure
8. electric potential a distance r from a charge
F/A
e=mc^2
frequency never changes for light problems
KQ/r
9. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
V = (Vo) + at
qV
frequency never changes for light problems
10. formula for impluse involving time
BA
(Wnet)/(Qin)
J= Ft
(No)(wavelength)=(Nn)(new wavelength)
11. formula for change in internal energy in a cosnstat volume PV process
V^2=(Vo)^2 +2a*change in x
-KA
(3/2)nRdeltaT
(Di)/(Do) or (Hi)/(Ho)
12. work energy theorum
deltaU -deltaW
Q=CV
elastic collision
net work = delta K
13. energy of a photon if wavelength is known
perfectly inelastic collision
hc/wavelength
.5mV^2 + .5KA^2
Ed=V
14. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B
constant pressure
BA
.5KA^2
15. lens/mirror equation
VI
(1/Do) + (1/Di) = (1/f)
(V^2)/R
Q=CV
16. snells law
G M/((d/2)^2)
M(Lf)
(Di)/(Do) or (Hi)/(Ho)
nSintheta=nsintheta
17. the electric force between two objects of charge Q
AV=(A2)(V2)
deltaU -deltaW
1/4wavelength
K |q||Q|/r^2
18. magnification equation
(Fn)(mu)
e=mc^2
(Di)/(Do) or (Hi)/(Ho)
GM*M/(r^2)
19. energy stored in a capacitor
deltaU = deltaQ + deltaW
k|Q|/r^2
.5CV^2 or .5 Q^2/C or .5QV
h/wavelength
20. the force on a charge moving parallel to a magnetic field
KQ/r
1/2wavelength
no force (right hand rule)
hc/wavelength
21. formula for energy of a spring mass when spring is at maximum displacement
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)
net work = delta K
.5KA^2
22. formula for finding magnetic flux
BA
net work = delta K
n(Cv)(deltaT)
delta x = (Vo)t + .5at^2
23. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
h/mv
(V^2)/R
1/2wavelength
24. type of collision where K is not conserved
J= Ft
.5CV^2 or .5 Q^2/C or .5QV
inelastic collision
GM*M/(r^2)
25. formula for height of the block (at the start of a pendulum string) in terms of theta and L
V = (Vo) + at
KQ/r
qrB/m
L -LCostheta
26. equation of continuity
BLv
opposite motion
elastic collision
AV=(A2)(V2)
27. force of friction
((Th) -(Tl))/(Th)
(Wnet)/(Qin)
mV -m(Vo)
(Fn)(mu)
28. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
-KA
rF
.5mV^2 + .5KA^2
h/wavelength
29. what direction is friction?
(I^2)R
2nt=mwavelength
opposite motion
(Fn)(mu)
30. heat during a cyclic process (net heat)
mV -m(Vo)
K |q||Q|/r^2
deltaU -deltaW
(V^2)/R
31. formula for impulse involving momentum
inelastic collision
mV -m(Vo)
(V^2)/r
net work = delta K
32. second kinematic
E/B
Ed=V
VI
delta x = (Vo)t + .5at^2
33. formula for efficiency not using work out
frequency never changes for light problems
((Qin) -(Qout))/(Qin)
(I^2)RT
BLv
34. resistance of a wire
pL/A
Columbs/second
sqrt(3KT/m)
no heat flow
35. total capacitance of capacitors in series
1/((1/C)+(1/C)..........)
sqrt(T/(m/))
joules/second
.5KA^2
36. adibatic
no heat flow
(Patm) + (Pgauge)
2nt=mwavelength
(Wnet)/(Qin)
37. formula for finding the momentum of a photon
h/wavelength
perfectly inelastic collision
0
(Di)/(Do) or (Hi)/(Ho)
38. velocity of waves on a string if tension is known
sqrt(T/(m/))
(Fn)(mu)
opposite motion
net work = delta K
39. voltage induced in a rod moving through a uniform magnetic field
2Pi * sqrt(l/g)
d/2
1/((1/C)+(1/C)..........)
BLv
40. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
pL/A
n(Cv)(deltaT)
(hc/wavelength)=h(Fo) +(Vs)
Q=CV
41. isothermal
AV=(A2)(V2)
M(Lf)
pL/A
no temp change
42. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(EMF)Rt/10
frequency never changes for light problems
(I^2)RT
K |q||Q|/r^2
43. natural frequency of an open tube of length L
1/((1/C)+(1/C)..........)
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
rF
44. formula for the wavelength (debroglie wavelength) of a moving particle
((Th) -(Tl))/(Th)
constant pressure
constant volume
h/mv
45. velocity of a molecule of gas
F/A
sqrt(3KT/m)
1/4wavelength
GM*M/(r^2)
46. formula for centripetal acceleration
pL/A
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)
(V^2)/r
47. formula for finding the work function of a metal if the cutoff frequency is known
pL/A
h(Fo)
BLv
deltaU = deltaQ + deltaW
48. velocity of an electrion as it exitws from the hole
deltaU -deltaW
inelastic collision
2Pi * sqrt(l/g)
qrB/m
49. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
.5KA^2
(EMF)Rt/10
(Di)/(Do) or (Hi)/(Ho)
AV=(A2)(V2)
50. formula for torque
2nt=mwavelength
qrB/m
rF
KI/r