የ12ኛ ክፍል ውጤት ወጥቷል፤ ውጤትዎን የሚያዩበት መንገድ

የፈተና ወረቀቶች

የ12ኛ ክፍል ፊዚክስ መግቢያ ፈተና፣ 2009 ዓ.ም. (2017)

ተማሪዎች በ2009 ዓ.ም. የተፈተኑበት የ12ኛ ክፍል የፊዚክስ የዩኒቨርሲቲ መግቢያ ፈተና እውነተኛ ጥያቄዎች። እያንዳንዱ ጥያቄ ትክክለኛ መልስ እና የተብራራ ማብራሪያ አለው።

በነጻ ልምምድ ይጀምሩየጥያቄ ወረቀት

  • የተፈጥሮ ሳይንስ ዘርፍ

    ማን ይፈተናል

  • 2009 ዓ.ም. (2017)

    የፈተና ዓመት

  • 45 ጥያቄዎች ከመልስ ጋር

    በዚህ ስብስብ

ከዚህ ፈተና ጥያቄዎችን ይሞክሩ

መልሱን ከመክፈትዎ በፊት እያንዳንዱን ጥያቄ በራስዎ ይመልሱ። ማብራሪያዎቹ ወደ መማሪያ መጽሐፉ ትክክለኛ ክፍል ይጠቁማሉ፤ ስለዚህ ጥያቄ ሲስቱ የትኛውን ገጽ እንደገና ማንበብ እንዳለብዎት ያውቃሉ።

ጥያቄ 12

Which of the following statements is correct about the first condition of equilibrium?

  1. A.The net force on an object must be zero.
  2. B.The sum of all torques must be zero.
  3. C.Clockwise moments should balance counter clockwise moments.
  4. D.The torque produced by a force should be perpendicular to the force.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ A The net force on an object must be zero.

ለምን

The first condition of equilibrium states that for an object to be in translational equilibrium, the vector sum of all external forces acting on it must be zero (net force = 0). The condition regarding torques is the second condition of equilibrium.

ጥያቄ 13

A 4m long uniform board of mass 10kg hinged on the ground at one end is hanging by a string at the other end. A block of mass 8kg is placed at 1m from the hinge on the ground as shown in the diagram below. What is the tension in the string? [Figure: A hand-drawn sketch, tall and narrow. At the bottom is hatched horizontal ground; a long straight board (drawn as a narrow rectangle) is hinged at its lower end on that ground and leans up and slightly to the left, making an angle marked 60060^0 with the ground on the right-hand side. From the top end of the board a string runs upward and slightly left to a hatched ceiling/support at the top of the figure. Leaning against the lower left part of the board is a small block labelled 8kg; a short dimension line at the bottom left marked 1m indicates its distance from the hinge.]

  1. A.10N
  2. B.50N
  3. C.70N
  4. D.110N
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ C 70N

ለምን

Taking torques about the hinge, the counter-clockwise torque from the vertical tension balances the clockwise torques from gravity: T(4)cos(60°) = (10 kg × 10 m/s² × 2 m)cos(60°) + (8 kg × 10 m/s² × 1 m)cos(60°). This simplifies to 4T = 200 + 80 = 280, yielding T = 70 N.

ጥያቄ 14

Which of the following refers to the definition of strain as a ratio?

  1. A.Extension to the original length.
  2. B.Force applied to area of the object normal to the force.
  3. C.Stress to Young modulus.
  4. D.Tensile to applied force.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ A Extension to the original length.

ለምን

Tensile or compressive strain is defined as the ratio of the change in length (extension) to the original length of the material. It is a dimensionless quantity.

ጥያቄ 15

Which of the following is the application of Pascal�s law?

  1. A.Hydraulic brake in vehicles.
  2. B.Siphon to remove fluids.
  3. C.Working of submarines.
  4. D.Sucking of liquid into a syringe.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ A Hydraulic brake in vehicles.

ለምን

Hydraulic brakes operate on Pascal's principle, which states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel.

ጥያቄ 17

If a precision of surveyor measured a distance of 500 meters /between two points in a village/ using a meter that has centimetre division on it, then what is the measurement result?

  1. A.500m
  2. B.500.0m
  3. C.500.00m
  4. D.500.000m
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ C 500.00m

ለምን

A measuring device with centimetre divisions has an uncertainty at the hundredth of a metre level (0.01 m). Therefore, the recorded measurement should have two decimal places, i.e., 500.00 m.

ጥያቄ 18

From the figures given below, which one of them shows precise but not accurate measurements? T represents the true value. [Figure: Four photographed hand-drawn distribution graphs, one per option. Every graph has the same axes: the vertical axis is labelled "Number of readings" and the horizontal axis is labelled "Reading", with a single letter T marked as a tick position on the horizontal axis. Graph A: T is marked near the left of the axis; a tall, narrow, sharply peaked curve rises well to the right of T, clearly separated from it (narrow spread, displaced from the true value). Graph B: T is marked on the axis and the tall, narrow, sharply peaked curve sits directly over T (narrow spread, centred on the true value). Graph C: a broad, low, wide hump whose maximum lies a little to the left of T, its tail spreading past T to the right (wide spread, roughly straddling the true value). Graph D: a broad, low, wide hump whose maximum lies well to the left of T, dying away just before T (wide spread, displaced from the true value).]

  1. A.Graph A: a tall narrow peak located well to the right of T.
  2. B.Graph B: a tall narrow peak centred on T.
  3. C.Graph C: a broad low hump whose maximum lies just to the left of T.
  4. D.Graph D: a broad low hump whose maximum lies well to the left of T.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ A Graph A: a tall narrow peak located well to the right of T.

ለምን

High precision is represented by a narrow, sharply peaked distribution (small random error), while low accuracy is indicated by the peak being significantly displaced from the true value T (large systematic error). This corresponds to Graph A.

ሙሉውን ፈተና በ PDF ያውርዱ

በዚህ ስብስብ ያሉት 45 ጥያቄዎች ሁሉ እንደ ታትሞ የወጣ ፈተና፣ የመልስ ቁልፉም ከ35 ማብራሪያዎች ጋር እንደ ሁለተኛ ፋይል። ያትሟቸው ወይም ያለ ዳታ ያንብቧቸው።

ነጻ ነው፤ መለያም አይጠይቅም።

የጥያቄ ወረቀትየመልስ ቁልፍ እና ማብራሪያዎች

ሙሉውን ፈተና በሰዓት ተገድበው ይስሩ

ነጻ የ Temari መለያ ሙሉውን የፊዚክስ ፈተና እና የሌሎች ዓመታትንም ሁሉ በሰዓት የተገደቡ የሙከራ ፈተናዎች አድርጎ ከወዲያውኑ ውጤት ጋር ይሰጥዎታል። በማንኛውም ስልክ ላይ፣ ደካማ ግንኙነት ላይም ይሰራል።

በነጻ ልምምድ ይጀምሩ

የሌሎች ዓመታት የፊዚክስ ፈተናዎች

2018 ዓ.ም. (2026)2017 ዓ.ም. (2025)2016 ዓ.ም. (2024)2015 ዓ.ም. (2023)2014 ዓ.ም. (2022)2013 ዓ.ም. (2021)2012 ዓ.ም. (2020)2011 ዓ.ም. (2019)2010 ዓ.ም. (2018)2008 ዓ.ም. (2016)2007 ዓ.ም. (2015)2006 ዓ.ም. (2014)2005 ዓ.ም. (2013)

ይህን ፈተና ከመቀመጥዎ በፊት ፊዚክስ ያጥኑ

የ12ኛ ክፍል ፊዚክስ አጭር ማስታወሻዎች 28 ካርዶች አሏቸው። እያንዳንዱ ከአገር አቀፉ መጽሐፍ ምዕራፍ በምዕራፍ ተዘጋጅቶ ሕጉን፣ ምልክቶቹ ምን እንደሚወክሉና ውጤት የሚያሳጣውን ስህተት ይናገራል።

የፊዚክስ ማስታወሻዎችን ይክፈቱ
እነዚህ እውነተኛዎቹ የ2009 ዓ.ም. የፊዚክስ መግቢያ ፈተና ጥያቄዎች ናቸው?

አዎ። ተማሪዎች በ2009 ዓ.ም. (2017) ከተፈተኑበት ብሔራዊ የዩኒቨርሲቲ መግቢያ የፊዚክስ ፈተና የተወሰዱ ናቸው። ስብስባችን ከጥያቄዎቹ 45 ያህሉን ይዟል፤ እያንዳንዱም መልስና ወደ መማሪያ መጽሐፉ የሚጠቁም ማብራሪያ አለው።

ሙሉውን ፈተና እንዴት እለማመዳለሁ?

በስልክ ቁጥር ነጻ መለያ ይክፈቱ። ሙሉው ፈተና በሰዓት የተገደበ የሙከራ ፈተና ሆኖ ወዲያውኑ ውጤት ይሰጣል፣ በወር 199 ብር የሆነው የ AI አጋዥ ማሻሻያም ያመለጠዎትን ሁሉ ያስረዳዎታል።

የ2009 ዓ.ም. የፊዚክስ ፈተናን በ PDF ማውረድ እችላለሁ?

አዎ፤ ነጻም ነው። የጥያቄ ወረቀቱ አንድ ፋይል ነው፤ የመልስ ቁልፉ ከማብራሪያዎቹ ጋር ሌላ ፋይል ነው፤ ስለዚህ ፈተናውን መጀመሪያ መሞከር ይችላሉ። ያትሟቸው፣ ወይም ዳታ በሌለበት ጊዜ ለክለሳ በስልክዎ ላይ ያስቀምጧቸው።

ይግቡመለያዎን ይክፈቱ