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

Yaadannoo boqonnaa fi gaaffii shaakalaa

Boqonnaa 2 Fiizikii kutaa 9: Hammaalee Fiizikaalaa

Wanti fuula kana irra jiru hundi boqonnaa 2 kitaaba Fiizikii kutaa 9 tiif: wanta boqonnaan haguugu, yaadannoo gabaabaa, gaaffii shaakalaa deebii isaanii waliin, fi viidiyoo barnootaa bakka jirutti.

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4
Kaardii
10
Gaaffii shaakalaa boqonnaa 2
12–35
Fuula kitaabaa boqonnaa 2

Boqonnaan 2 maal haguuga

  1. 1.Scales, Standards, Units (prefixes)
  2. 2.Measurement and Safety
  3. 3.Classification of Physical Quantities

Yaadannoo gabaabaa boqonnaa 2

Kaardiiwwan fuula Fiizikii kutaa 9 irratti boqonnaa kana jala galmaa'an. Tokko tokkoon bani.

DursaaMallattooBaay'isaa
teraT101210^{12}
gigaG10910^9
megaM10610^6
kilok10310^3
centic10−210^{-2}
millim10−310^{-3}
microμ\mu10−610^{-6}
nanon10−910^{-9}
picop10−1210^{-12}

Yoom akka itti fayyadamtu

Safartuuwwan baay'ee gurguddoo yookiin baay'ee xixinnoo gara humnoota 10tti jijjiiruuf itti fayyadamaa.

Of eeggadhu

micro mallattoo μ\mu fayyadamee 10−610^{-6} agarsiisa, milli immoo m ta'ee 10−310^{-3} agarsiisa. Mallattoolee hin walfaallessinaa.

Grade 9 Physics, fuula 12-35 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Yoom akka itti fayyadamtu

Qaamolee fiizikaalaa hamma qofa yookiin hamma fi kallattii qabaachuu isaaniitiin ramaduuf itti fayyadamaa.

Of eeggadhu

distance fi speed scalar dha, displacement fi velocity garuu vector dha. mass scalar yoo ta'u force immoo vector dha.

Grade 9 Physics, fuula 12-35 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Physical quantityMallattooSI UnitMallattoo yuunitii
Dheerinallmeterm
Hangammkilogramkg
Yeroottseconds
Ho'ina (Tempirature)TTkelvinK
Yaa'a elektirikii (Current)IIampereA
Hamma wantaannmolemol
Jabina ifaa (Luminous intensity)IvI_vcandelacd

Yoom akka itti fayyadamtu

Qaamolee fiizikaalaa bu'uuraa torban fi yuunitiiwwan isaanii kanneen idilee SI adda baasuuf itti fayyadamaa.

Of eeggadhu

Qaamoleen akka speed, force fi density qaamolee dhuftuu dha. Kanneen birootiin ibsamuu kan hin dandeenye torban kana qofa.

Grade 9 Physics, fuula 12-35 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Yoom akka itti fayyadamtu

Safartuuwwan interval fi ratio irratti shallaggiiwwan heeyyamaman adda baasuuf itti fayyadamaa.

Of eeggadhu

Celsius fi Fahrenheit safartuu interval waan ta'aniif eelaa dhugaa hin qaban, kanaaf walitti baay'isuu fi walhiruun hin danda'amu. Kelvin qofatu eelaa dhugaa qaba.

Grade 9 Physics, fuula 12-35 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Gaaffii shaakalaa boqonnaa 2

Gaaffii filannoo 10 boqonnaa kana irratti barreeffaman, tokkoon tokkoon isaanii deebii fi sababa qabu. Deebii banuu dura yaali. Gaaffiin kun Ingiliffaa tiin.

Gaaffii 1

Which type of measurement scale has equal intervals and a true zero point, allowing addition, subtraction, multiplication, and division?

  1. A.Nominal scale
  2. B.Ordinal scale
  3. C.Interval scale
  4. D.Ratio scale
Deebii fi sababa agarsiisi

Deebii: D Ratio scale

Sababa

A ratio scale has equal intervals and a true zero point. This allows all four basic arithmetic operations: addition, subtraction, multiplication, and division.

Gaaffii 2

Which of the following is one of the seven fundamental (basic) physical quantities in physics?

  1. A.Mass
  2. B.Speed
  3. C.Density
  4. D.Force
Deebii fi sababa agarsiisi

Deebii: A Mass

Sababa

Mass is one of the seven fundamental quantities. Speed, density, and force are derived quantities because they are calculated from basic quantities.

Gaaffii 3

Which of the following is classified as a vector quantity?

  1. A.Distance
  2. B.Time
  3. C.Acceleration
  4. D.Mass
Deebii fi sababa agarsiisi

Deebii: C Acceleration

Sababa

A vector quantity has both magnitude and direction. Acceleration has both magnitude and direction, while distance, time, and mass have only magnitude (scalars).

Gaaffii 4

Which rule must students always follow in a physics laboratory?

  1. A.Taste chemicals to identify them
  2. B.Work alone at all times
  3. C.Always wear lab safety goggles
  4. D.Wear bulky jewelry and open-toed shoes
Deebii fi sababa agarsiisi

Deebii: C Always wear lab safety goggles

Sababa

According to laboratory safety rules, you should always wear lab safety goggles, never work alone, and never taste chemicals.

Gaaffii 5

How many significant figures are in the number 2000.0?

  1. A.1
  2. B.4
  3. C.5
  4. D.2
Deebii fi sababa agarsiisi

Deebii: C 5

Sababa

Zeroes at the end of the decimal part are counted as significant figures. Therefore, 2000.0 has 5 significant figures.

Gaaffii 6

Which unit prefix represents a multiplier of 10-6 (0.000001)?

  1. A.milli
  2. B.micro
  3. C.nano
  4. D.pico
Deebii fi sababa agarsiisi

Deebii: B micro

Sababa

The prefix micro (µ) corresponds to the factor 10-6. Milli is 10-3, nano is 10-9, and pico is 10-12.

Gaaffii 7

The standard SI unit of time, the second (s), is defined by which of the following?

  1. A.One complete rotation of the Earth on its axis
  2. B.9 192 631 770 periods of vibration of radiation from the cesium-133 atom
  3. C.The time taken by light to travel one meter in a vacuum
  4. D.One swing of a standard pendulum clock
Deebii fi sababa agarsiisi

Deebii: B 9 192 631 770 periods of vibration of radiation from the cesium-133 atom

Sababa

The second (s) is defined as 9 192 631 770 times the period of vibration of radiation from the cesium-133 atom.

Gaaffii 8

A student in Hawassa spent 3 hours + 10 minutes + 120 seconds doing homework. How many minutes is this total time?

  1. A.182 min
  2. B.192 min
  3. C.202 min
  4. D.212 min
Deebii fi sababa agarsiisi

Deebii: B 192 min

Sababa

Convert each part into minutes: 3 hours = 3 × 60 = 180 min; 120 seconds = 120 / 60 = 2 min. Total = 180 + 10 + 2 = 192 minutes.

Gaaffii 9

A trader in Addis Ababa measures three separate sacks of teff. The masses are 2 tonnes, 100 kg, and 1 kg. What is the total mass in kilograms?

  1. A.2001 kg
  2. B.2011 kg
  3. C.2101 kg
  4. D.2210 kg
Deebii fi sababa agarsiisi

Deebii: C 2101 kg

Sababa

Since 1 tonne = 1000 kg, 2 tonnes = 2000 kg. Adding the masses: 2000 kg + 100 kg + 1 kg = 2101 kg.

Gaaffii 10

Which derived physical quantity has the SI base unit combination of kg / (m · s2)?

  1. A.Force
  2. B.Pressure
  3. C.Work
  4. D.Density
Deebii fi sababa agarsiisi

Deebii: B Pressure

Sababa

Pressure is defined as Force / Area. Its SI unit is the pascal (Pa), which is equal to kg / (m · s2).

Appiin boqonnaa kana irratti gaaffii 12 qaba; utuu hojjettuu ni sirreessa. Kan asii jiran 10 jalqabaa ti.

Fuula kitaabaa boqonnaa 2

Boqonnaan 2 Maxxansa Ministeera Barnootaa keessatti fuula 12 hanga fuula 35 ti.

Maxxansa Ministeera Barnootaa, Ingiliffaa, Fuula 179

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Yaadannoo gabaabaa Fiizikii kutaa 9 hunda

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