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Qormaata galuumsa kutaa 12ffaa Fiiziksii, bara 2013 A.L.I (2021)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Fiiziksii, akkuma barattoonni bara 2013 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2013 A.L.I (2021)

    Bara qormaataa

  • Gaaffilee 48 deebii waliin

    Kuusaa kana keessa

Gaaffilee qormaata kanaa yaalaa

Deebii banuun dura tokkoon tokkoon gaaffii ofii keessaniin deebisaa. Ibsi gara kutaa kitaaba barnootaa sirriitti waan qajeelchuuf, yeroo gaaffii dogoggortan fuula kam irra deebi'uu akka qabdan ni beektu.

Gaaffii 1

According to the kinetic theory of gases, the

  1. A.particles of an ideal gas undergo inelastic collision between themselves and with the walls of the container.
  2. B.diffusion rate of a gas is inversely proportional to the square root of the molar mass because it is directly proportional to the molecular speed.
  3. C.internal energy of an ideal gas is equal to the potential energy due to interaction between the particles of the gas.
  4. D.average translational kinetic energy of the particles of an ideal gas increases as the gas gets cooled.
Deebii fi ibsa ilaalaa

Deebii: B diffusion rate of a gas is inversely proportional to the square root of the molar mass because it is directly proportional to the molecular speed.

Maaliif

According to Graham's law, the rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This is because the root-mean-square speed of the gas molecules, vrms=3RT/Mv_{rms} = \sqrt{3RT/M}, is also inversely proportional to the square root of the molar mass.

Gaaffii 2

At t=0t = 0, an object undergoing SHM has maximum displacement of 0.650 m and angular frequency of 7.40 rad/s. Which of the following is correct about the motion of the oscillator?

  1. A.The position of the object is x=0.650cos⁡(7.40t)x = 0.650\cos(7.40t) and its acceleration is a=−35.59cos⁡(7.40t)a = -35.59\cos(7.40t).
  2. B.The frequency of the oscillator is 7.40 Hz and its period is 0.135 s.
  3. C.The position of the object is x=0.650sin⁡(7.40t)x = 0.650\sin(7.40t) and its velocity is v=4.81cos⁡(7.40t)v = 4.81\cos(7.40t).
  4. D.The position of the object is x=0.650cos⁡(7.40t)x = 0.650\cos(7.40t) and its acceleration is a=−3.59sin⁡(7.40t)a = -3.59\sin(7.40t).
Deebii fi ibsa ilaalaa

Deebii: A The position of the object is x=0.650cos⁡(7.40t)x = 0.650\cos(7.40t) and its acceleration is a=−35.59cos⁡(7.40t)a = -35.59\cos(7.40t).

Maaliif

With maximum displacement at t=0t = 0, the position equation is x=Acos⁡(ωt)=0.650cos⁡(7.40t)x = A\cos(\omega t) = 0.650\cos(7.40t). Since acceleration is a=−ω2xa = -\omega^2 x, we have a=−(7.40)2⋅0.650cos⁡(7.40t)=−35.59cos⁡(7.40t)a = -(7.40)^2 \cdot 0.650\cos(7.40t) = -35.59\cos(7.40t).

Gaaffii 3

A 0.35 kg mass attached to the end of a spring oscillates 2.5 times per second with amplitude of 0.15 m. Which of the following is true about the motion of the mass?

  1. A.The velocity when it is 0.10 m from equilibrium is 3.0 m/s.
  2. B.The acceleration when it is 0.10 m from equilibrium is 25.00 m/s225.00\ \mathrm{m/s^2}.
  3. C.The velocity when it passes the equilibrium is 2.355 m/s.
  4. D.The total energy of the system is 97.0 J.
Deebii fi ibsa ilaalaa

Deebii: C The velocity when it passes the equilibrium is 2.355 m/s.

Maaliif

The maximum velocity of the mass occurs when it passes through the equilibrium position, given by vmax=Aω=A(2πf)v_{max} = A\omega = A(2\pi f). Substituting the values with π≈3.14\pi \approx 3.14, we get vmax=0.15×2×3.14×2.5=2.355 m/sv_{max} = 0.15 \times 2 \times 3.14 \times 2.5 = 2.355\text{ m/s}.

Gaaffii 4

Identify a true statement about a mechanical wave.

  1. A.The speed of a wave traveling across a thin string is equal to its speed when traveling across a thick string of the same length and tension.
  2. B.The speed of a wave traveling along a string increases as the tension in the string increases and as the linear density of the string decreases.
  3. C.As a wave travels from one point to another along a medium, it transmits energy and particles of the medium from point to point.
  4. D.The velocity of a traveling wave is equal to the velocity of the particles through which the wave propagates.
Deebii fi ibsa ilaalaa

Deebii: B The speed of a wave traveling along a string increases as the tension in the string increases and as the linear density of the string decreases.

Maaliif

The velocity of a transverse wave on a stretched string is given by v=T/μv = \sqrt{T/\mu}, where TT is the tension and μ\mu is the linear mass density. Therefore, the wave speed increases when tension increases or when the linear density decreases.

Gaaffii 5

Which one of the following is a correct statement about the intensity of sound?

  1. A.It is directly proportional to the square of the distance from the sound source.
  2. B.It is inversely proportional to the square of the distance from the source of sound.
  3. C.It is the product of power of a sound and area through which the sound is transmitted
  4. D.It is energy transmitted per unit time.
Deebii fi ibsa ilaalaa

Deebii: B It is inversely proportional to the square of the distance from the source of sound.

Maaliif

The intensity II of sound from a point source in an open space is given by I=P/(4πr2)I = P / (4\pi r^2), which is inversely proportional to the square of the distance rr from the source.

Gaaffii 6

Which of the following is correct about Doppler effect?

  1. A.When a sound source moves away from stationary observer, the frequency detected by the observer increases, whereas the wavelength decreases.
  2. B.Doppler effect is the change in the frequency of a wave due to relative motion between the wave source and an observer.
  3. C.It is the change in the velocity of a wave due to relative motion between the source of the wave and an observer.
  4. D.When a source of sound wave moves toward stationary observer, the wavelength of the wave increases while its frequency decreases.
Deebii fi ibsa ilaalaa

Deebii: B Doppler effect is the change in the frequency of a wave due to relative motion between the wave source and an observer.

Maaliif

The Doppler effect is defined as the change in the observed frequency of a wave due to the relative motion between the wave source and the observer.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 48 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 48 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

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Qormaata guutuu sa'aatiin daangeffamee hojjedhaa

Herregni Temari bilisaa qormaata Fiiziksii guutuu fi kan waggoota biroo hunda qormaatilee fakkeenyaa sa'aatiin daangeffaman godhee qabxii battalumaa waliin isiniif kenna. Bilbila kamiyyuu irratti, walitti hidhamiinsa laafaa irrattillee ni hojjeta.

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Qormaata kana taa'uu dura Fiiziksii qayyabadhu

Yaadannoon gabaabaan Fiiziksii kutaa 12 kaardii 28 qaba. Tokkoon tokkoon boqonnaa boqonnaadhaan kitaaba biyyaalessaa irraa qophaa'ee seericha, mallattoowwan isaa maal bakka akka bu'an fi dogoggora qabxii nama dhabsiisu ni ibsa.

Yaadannoo Fiiziksii bani
Kunneen gaaffilee dhugaa qormaata galuumsa Fiiziksii bara 2013 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Fiiziksii barattoonni bara 2013 A.L.I (2021) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 48 qaba; tokkoon tokkoon isaanii deebii fi ibsa gara kitaaba barnootaatti qajeelchu qabu.

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Lakkoofsa bilbilaatiin herrega bilisaa banadhaa. Qormaatichi guutuun qormaata fakkeenyaa sa'aatiin daangeffame ta'ee qabxii battalumaa kenna; fooyya'iinsi gargaaraa AI ji'atti qarshii 199 kan ta'e waan isin jalaa darbe hunda isinii ibsa.

Qormaata Fiiziksii bara 2013 A.L.I PDF dhaan buufachuu nan danda'aa?

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