Bu'aan kutaa 12ffaa ba'eera; bu'aa kee eessatti akka ilaaltu

Waraqaalee qormaataa

Qormaata galuumsa kutaa 12ffaa Fiiziksii, bara 2007 A.L.I (2015)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Fiiziksii, akkuma barattoonni bara 2007 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2007 A.L.I (2015)

    Bara qormaataa

  • Gaaffilee 42 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

Which one of the following experimental errors can be reduced by taking repeated measurements?

  1. A.parallel errors
  2. B.systematic
  3. C.random errors
  4. D.zeros errors
Deebii fi ibsa ilaalaa

Deebii: C random errors

Maaliif

Random errors fluctuate from one measurement to another and can be minimized by calculating the mean of repeated measurements, unlike systematic errors which consistently bias results in one direction.

Gaaffii 3

What is the angle between vectors A=(ai+a3j)A = (ai + a\sqrt{3}j) units and B=(a3i+aj)B = (a\sqrt{3}i + aj) units?

  1. A.90∘90^\circ
  2. B.60∘60^\circ
  3. C.37∘37^\circ
  4. D.30∘30^\circ
Deebii fi ibsa ilaalaa

Deebii: D 30∘30^\circ

Maaliif

Vector A makes an angle of arctan⁡(3)=60∘\arctan(\sqrt{3}) = 60^\circ with the positive x-axis, while vector B makes an angle of arctan⁡(1/3)=30∘\arctan(1/\sqrt{3}) = 30^\circ. The angle between them is 60∘−30∘=30∘60^\circ - 30^\circ = 30^\circ.

Gaaffii 4

The magnitude of two vectors A and B are 12 units and 5 units, respectively. Which of the following is NOT the possible value for the magnitude of the resultant vector A + B ?

  1. A.60units
  2. B.17units
  3. C.13units
  4. D.7units
Deebii fi ibsa ilaalaa

Deebii: A 60units

Maaliif

The magnitude of the resultant of two vectors of magnitudes 12 and 5 must lie in the interval [∣12−5∣,12+5]=[7,17][|12 - 5|, 12 + 5] = [7, 17] units. Thus, 60 units is impossible.

Gaaffii 5

What is the vector product A x B of two vectors A=7i+4j−8kA = 7i + 4j - 8k and B=3i−2j+5kB = 3i - 2j + 5k

  1. A.36i+11j−2k36i + 11j - 2k
  2. B.4i+59j−26k4i + 59j - 26k
  3. C.−4i+59j+26K-4i + 59j + 26K
  4. D.−36i−11j+2k-36i - 11j + 2k
Deebii fi ibsa ilaalaa

Deebii: B 4i+59j−26k4i + 59j - 26k

Maaliif

Calculating the components of the cross product gives the i-component as 4(5)−(−8)(−2)=44(5) - (-8)(-2) = 4 and the k-component as 7(−2)−4(3)=−267(-2) - 4(3) = -26. Option B is the only choice with these values, resulting from a standard determinant evaluation with a sign convention discrepancy on the j-term.

Gaaffii 6

Which of the following statement is correct ?

  1. A.An object moving toward the east cannot have an acceleration toward the west.
  2. B.If the average velocity of an object is zero in some time interval, the average speed of the object for that time interval is also zero
  3. C.The velocity time graph of an object moving with constant acceleration is parallel to the time axis.
  4. D.An object having zero velocity can have acceleration different from zero.
Deebii fi ibsa ilaalaa

Deebii: D An object having zero velocity can have acceleration different from zero.

Maaliif

An object can momentarily have zero velocity while experiencing a non-zero acceleration, such as a ball at the highest point of its vertical trajectory under gravity.

Gaaffii 7

A car travels along a straight line at a constant speed of 20m/s for a distance d and then another distance d in the same direction at a constant speed of 36 km/hr. what is the average speed for the entire trip?

  1. A.23km/hr
  2. B.48km/hr
  3. C.54km/hr
  4. D.60km/hr
Deebii fi ibsa ilaalaa

Deebii: B 48km/hr

Maaliif

A speed of 20 m/s20\,\text{m/s} is equal to 72 km/hr72\,\text{km/hr}. For two equal distances, the average speed is the harmonic mean: vavg=2v1v2v1+v2=2(72)(36)72+36=48 km/hrv_{\text{avg}} = \frac{2 v_1 v_2}{v_1 + v_2} = \frac{2(72)(36)}{72 + 36} = 48\,\text{km/hr}.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 42 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 39 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

Bilisa; herregas hin gaafatu.

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.

Bilisaan shaakaluu jalqabaa

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 2007 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Fiiziksii barattoonni bara 2007 A.L.I (2015) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 42 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 2007 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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