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Qormaata galuumsa kutaa 12ffaa Fiiziksii, bara 2012 A.L.I (2020)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Fiiziksii, akkuma barattoonni bara 2012 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2012 A.L.I (2020)

    Bara qormaataa

  • Gaaffilee 41 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

Equilibrium is the state of an object when

  1. A.The net force and net torque are both zero.
  2. B.The object has constant angular acceleration.
  3. C.The net forceZ acting on it is constant.
  4. D.The object has constant linear acceleration.
Deebii fi ibsa ilaalaa

Deebii: A The net force and net torque are both zero.

Maaliif

An object is in mechanical equilibrium if and only if both the net external force and the net external torque acting on it are zero, which prevents any linear or angular acceleration.

Gaaffii 2

The fulcrum of a uniform 20 Kg seesaw that is 4.0 m long is located 2.5 m from one end. A 30Kg child sits on the long end. The weight of a person sitting at the other end in order To balance the seesaw is ________ .

  1. A.433 N
  2. B.567 N
  3. C.750 N
  4. D.850 N
Deebii fi ibsa ilaalaa

Deebii: B 567 N

Maaliif

Taking torque about the fulcrum, the uniform seesaw's center of gravity (at 2.0 m) is 0.5 m from the fulcrum on the long end side. To balance, the torque from the person on the short end (1.5 m from the fulcrum) must equal the sum of torques from the child (at 2.5 m) and the seesaw itself: 1.5Wp=30(10)(2.5)+20(10)(0.5)=850 N⋅m1.5 W_p = 30(10)(2.5) + 20(10)(0.5) = 850\text{ N}\cdot\text{m}, giving Wp≈567 NW_p \approx 567\text{ N}.

Gaaffii 3

A material rod that is 4.00 m long and 0.5cm20.5\text{cm}^2 in cross-sectional area is found to stretch 0.20cm under a tension of 5000N. The Young's Modulus for this material is _______.

  1. A.2.0×1011 N/m22.0 \times 10^{11}\text{ N/m}^2
  2. B.5.0×108 N/m25.0 \times 10^8\text{ N/m}^2
  3. C.1.0×104 N/m21.0 \times 10^4\text{ N/m}^2
  4. D.1.0×108 N/m21.0 \times 10^8\text{ N/m}^2
Deebii fi ibsa ilaalaa

Deebii: A 2.0×1011 N/m22.0 \times 10^{11}\text{ N/m}^2

Maaliif

Young's Modulus is given by Y=FL0AΔLY = \frac{F L_0}{A \Delta L}. Substituting the values F=5000 NF = 5000\text{ N}, L0=4.0 mL_0 = 4.0\text{ m}, A=0.5×10−4 m2A = 0.5 \times 10^{-4}\text{ m}^2, and ΔL=2.0×10−3 m\Delta L = 2.0 \times 10^{-3}\text{ m} gives Y=2.0×1011 N/m2Y = 2.0 \times 10^{11}\text{ N/m}^2.

Gaaffii 4

Which one of the following is NOT true about Pascal's principle and its application?

  1. A.In pneumatic application, air is used for pressure transmission instead of liquid.
  2. B.The hydraulic lift is a speed multiplying device in which a large force lifts a light object over a long distance.
  3. C.It has applications in hydraulic brakes for vehicles, where confined oil connects a small piston (brake pedal) to a large piston connected to the brake drums on the wheel of the car.
  4. D.It has applications in hydraulic lift in which a small force is applied to a smaller piston is used to lift heavy object on large.
Deebii fi ibsa ilaalaa

Deebii: B The hydraulic lift is a speed multiplying device in which a large force lifts a light object over a long distance.

Maaliif

A hydraulic lift is a force-multiplying device, not a speed-multiplying device. It allows a smaller input force acting over a larger distance to lift a much heavier load over a shorter distance.

Gaaffii 5

Which one of the following is NOT correct about factors that affecting the streamlining of objects moving in fluid?

  1. A.The mass of the object
  2. B.Shape and surface area of the object moving in fluid
  3. C.Compressibility of the fluid
  4. D.Density of the fluid
Deebii fi ibsa ilaalaa

Deebii: A The mass of the object

Maaliif

The streamlining of an object depends on the fluid's characteristics (density, viscosity, compressibility) and the object's geometry (shape and surface area), but is independent of the mass of the moving object itself.

Gaaffii 6

Which of the following is correct?

  1. A.Internal energy of a system is independent of its mass or the number of molecules in the system.
  2. B.Temperature is a measure of the average molecular kinetic energy of a gas.
  3. C.The temperature is a measure of the amount of energy that flows from hot to colder region.
  4. D.Heat is energy that can be transferred from one object to another at equal temperature.
Deebii fi ibsa ilaalaa

Deebii: B Temperature is a measure of the average molecular kinetic energy of a gas.

Maaliif

Temperature is directly proportional to the average translational kinetic energy of the molecules in an ideal gas (KEavg=32kBTKE_{\text{avg}} = \frac{3}{2} k_B T), making Option B the correct statement.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 41 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 41 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

Bilisa; herregas hin gaafatu.

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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 2012 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Fiiziksii barattoonni bara 2012 A.L.I (2020) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 41 qaba; tokkoon tokkoon isaanii deebii fi ibsa gara kitaaba barnootaatti qajeelchu qabu.

Qormaata guutuu akkamittan shaakala?

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 2012 A.L.I PDF dhaan buufachuu nan danda'aa?

Eeyyee; bilisas. Waraqaan gaaffii faayilii tokko, furtuun deebii ibsa isaa waliin immoo faayilii biraa ti; kanaaf qormaata dursitanii yaaluu dandeessu. Maxxansaa, yookiin yeroo daataan hin jirre irra deebiif bilbila keessan irratti kaa'adhaa.

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