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Qormaata galuumsa kutaa 12ffaa Fiiziksii, bara 2016 A.L.I (2024), Tigraay

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Fiiziksii, akkuma barattoonni bara 2016 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba. Kun qormaata bara 2016 A.L.I Tigraay keessatti kennamedha. Qormaatileen biroo bara sanaa gadi aanee tarreeffamaniiru.

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  • 2016 A.L.I (2024), Tigraay

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  • Gaaffilee 45 deebii waliin

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Gaaffilee qormaata kanaa yaalaa

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Gaaffii 1

In physics, dynamics is understood as a branch of mechanics which describes the motion of particles

  1. A.without considering the effects of forces.
  2. B.together with the effects of forces.
  3. C.on which only a constant resultant force is applied.
  4. D.on which no resultant force is applied.
Deebii fi ibsa ilaalaa

Deebii: B together with the effects of forces.

Maaliif

Dynamics is the branch of mechanics that studies forces and their effects on the motion of bodies, whereas kinematics describes motion without considering its causes (forces).

Gaaffii 2

After doing a background research, a researcher formulates a hypothesis. If the researcher proceeds with his/her study following the scientific method, which one of the following is the correct ordering of the steps the researcher should follow?

  1. A.Design an experiment → Make predictions → Analyze the collected data → Draw conclusions
  2. B.Design an experiment → Analyze the collected data → Make predictions → Draw conclusions
  3. C.Analyze the collected data → Make predictions → Design an experiment → Draw conclusions
  4. D.Make predictions → Design an experiment → Analyze the collected data → Draw conclusions
Deebii fi ibsa ilaalaa

Deebii: D Make predictions → Design an experiment → Analyze the collected data → Draw conclusions

Maaliif

Following the scientific method, after formulating a hypothesis, a researcher makes predictions, designs and conducts experiments to test those predictions, analyzes the collected data, and then draws conclusions.

Gaaffii 3

Among the following concepts of physics, which one of the following is commonly used in analyzing forces on the bridge, motion of airplane, motion of planets and magnetic fields?

  1. A.kinematics
  2. B.Vectors
  3. C.Thermodynamics
  4. D.Optics
Deebii fi ibsa ilaalaa

Deebii: B Vectors

Maaliif

Vectors are essential mathematical tools used to analyze physical quantities that have both magnitude and direction, such as forces on a bridge, velocity/acceleration of an airplane, gravitational forces on planets, and magnetic fields.

Gaaffii 4

In a certain class student A measured the acceleration due to gravity, while student B measured electric current in a circuit. Each student did the measurement four times. Two readings of student A are below the accepted value, while the other two are above the accepted value. On the other hand, all the readings of student B are below the accepted value. Which one of the following is correct about the types of errors associated with the two experiments?

  1. A.Systematic error to experiment done by B
  2. B.Systematic error to experiment done by A
  3. C.Random error to experiment done by B
  4. D.Both systematic and random errors to experiments done by both A and B
Deebii fi ibsa ilaalaa

Deebii: A Systematic error to experiment done by B

Maaliif

Systematic errors consistently skew measurements in one direction (such as all readings being below the accepted value, as in student B's experiment), whereas random errors cause readings to scatter both above and below the true value.

Gaaffii 5

The instantaneous acceleration of a particle is the

  1. A.change of position divided by the total time taken for the change to take place.
  2. B.rate change of velocity in a very short time interval that approaches zero.
  3. C.average velocity in a very short time interval that approaches zero.
  4. D.change of velocity divided by the total time taken for the change to take place.
Deebii fi ibsa ilaalaa

Deebii: B rate change of velocity in a very short time interval that approaches zero.

Maaliif

Instantaneous acceleration is defined as the limit of the average acceleration as the time interval approaches zero, which represents the rate of change of velocity at a specific instant.

Gaaffii 6

Consider two objects A and B; object A undergoes a uniform circular motion while object B performs a non-uniform circular motion. Which one of the following is correct about the motions of the two objects?

  1. A.The velocities and accelerations of both objects are perpendicular to each other.
  2. B.the velocity of object A is constant whereas the velocity of object B is not.
  3. C.Both objects have constant accelerations.
  4. D.the speed of object A is constant whereas the speed of object B is not.
Deebii fi ibsa ilaalaa

Deebii: D the speed of object A is constant whereas the speed of object B is not.

Maaliif

In uniform circular motion (object A), the speed remains constant while the direction of velocity changes. In non-uniform circular motion (object B), both the speed and direction of velocity change.

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Gaaffilee 45 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 45 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

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Kunneen gaaffilee dhugaa qormaata galuumsa Fiiziksii bara 2016 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Fiiziksii barattoonni bara 2016 A.L.I (2024) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 45 qaba; tokkoon tokkoon isaanii deebii fi ibsa gara kitaaba barnootaatti qajeelchu qabu.

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