የ12ኛ ክፍል ውጤት ወጥቷል፤ ውጤትዎን የሚያዩበት መንገድ

የምዕራፍ ማስታወሻዎችና የመልመጃ ጥያቄዎች

የ9ኛ ክፍል ኬሚስትሪ ምዕራፍ 1፦ ኬሚስትሪ እና ጠቀሜታው

በዚህ ገጽ ያለው ሁሉ ለ9ኛ ክፍል የኬሚስትሪ መፅሐፍ ምዕራፍ 1 ነው፦ ምዕራፉ የሚሸፍነው፣ አጭር ማስታወሻዎቹ፣ የመልመጃ ጥያቄዎች ከመልሶቻቸው ጋር፣ እና ቪዲዮ ባለበት የትምህርቱ ቪዲዮ።

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የምዕራፍ 1 የመልመጃ ጥያቄዎች
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የምዕራፍ 1 የመፅሐፍ ገጾች

ከዚህ ይጀምሩ

የ Temari ትምህርት ለምዕራፍ 1

በዚህ ምዕራፍ ላይ Temari ያዘጋጀው አጭር የቪዲዮ ትምህርት። ፕሌይ ሲጫኑ ብቻ ይጫናል። ትምህርቱ በእንግሊዝኛ ነው።

The five branches of chemistry · 4 ደቂቃ · የተሠሩ 2 ያለፉ የፈተና ጥያቄዎች

የትምህርቱ ክፍሎች

ትምህርቱን ከዚያ ጀምሮ ለማጫወት አንድ ክፍል ይንኩ።

ምዕራፍ 1 የሚሸፍነው

  1. 1.Definition and Scope of Chemistry

የምዕራፍ 1 አጭር ማስታወሻዎች

በ9ኛ ክፍል የኬሚስትሪ ገጽ ላይ በዚህ ምዕራፍ ሥር የተመዘገቡት ካርዶች። አንድ በአንድ ይክፈቱ።

የተቀናጀ የጥናት መስክየተጣመሩ የሳይንስ ዘርፎች
BiochemistryChemistry እና Biology
GeochemistryChemistry እና Geology
Physical chemistryChemistry እና Physics
Medicinal chemistryChemistry እና Medicine

መቼ እንደሚጠቀሙበት

ኬሚስትሪ ከሌሎች የሳይንስ ዘርፎች ጋር የሚጋራቸውን መስኮች ለመግለጽ ይጠቀሙበታል ።

ይጠንቀቁ

ሁሉንም የተፈጥሮ ሳይንሶች የሚያገናኝ ማዕከላዊ ሳይንስ መሆኑን ያስታውሱ ።

ከGrade 9 Chemistry፣ ገጽ 2-18 የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል

ዘርፍየሚያጠናው
Organic chemistryካርቦን የያዙ ነገሮችን። ካርቦን እጅግ ብዙ ውህዶችን ይሠራል፤ በሕይወት ባላቸው ፍጥረታት ውስጥ ያሉት አብዛኞቹ ኬሚካሎችም በእሱ ላይ የተመሠረቱ ናቸው።
Inorganic chemistryበዋነኝነት በካርቦን ላይ ያልተመሠረቱ ነገሮችን፤ ለምሳሌ በዐለቶችና በማዕድናት ውስጥ የሚገኙ ውህዶችን።
Physical chemistryበኬሚካል ሥርዓቶች ውስጥ ያሉ ሰፋፊ ባህርያትን፣ የአቶም ባህርያትንና ክስተቶችን፦ የምላሽ ፍጥነትን፣ በምላሹ ጊዜ የሚተላለፈውን ኃይልንና የነገሮችን አወቃቀር በሞለኪውል ደረጃ።
Analytical chemistryየነገሮችን ስብጥር። በናሙና ውስጥ ያሉትን ኬሚካሎች ይነጥላል፣ ይለያል፣ ይለካልም።
Biochemistryበሕይወት ባላቸው ነገሮች ውስጥ የሚካሄዱ የኬሚካል ሂደቶችን።

መቼ እንደሚጠቀሙበት

ኬሚስትሪ የነገሮችን ባህርይ፣ ስብጥርና አወቃቀር፣ የሚያልፉበትን ለውጥ እንዲሁም በዚያ ለውጥ ጊዜ የሚለቀቀውን ወይም የሚወሰደውን ኃይል የሚያጠና ሳይንስ ሲሆን ወደ አምስት ዋና ዘርፎች ይከፈላል። ዘርፎቹን ለመጥራት ይህን ሠንጠረዥ ይጠቀሙ፤ industrial chemistry እና environmental chemistry ግን ከአምስቱ ውስጥ ሳይሆኑ በኬሚስትሪ የሥራ ወሰን ውስጥ የሚገቡ መሆናቸውን ያስታውሱ።

ይጠንቀቁ

ካርቦን የያዘ ውህድ ሁሉ organic ይመስላል፤ በዚህም ተማሪዎች CO2፣ CO፣ Na2CO3፣ NaHCO3፣ CaC2 እና KCN ን በorganic chemistry ሥር ያስቀምጣሉ። ስድስቱም እንደ inorganic ነው የሚጠኑት። Organic chemistry የሚጀምረው ከhydrocarbons ነው፤ አምስት የካርቦን ቤተሰቦች ደግሞ በinorganic በኩል ይቀራሉ፦ የካርቦን oxides፣ carbonates፣ hydrogen carbonates፣ cyanides እና carbides። ስለዚህ 'organic chemistry በካርቦን ላይ ያልተመሠረቱ ኬሚካሎችን ያጠናል' የሚለው ሐሳብ ስህተት ነው። Organic chemistry በካርቦን ላይ የተመሠረቱትን ይወስዳል፤ የቀሩትን ደግሞ inorganic chemistry ይወስዳል።

የምዕራፍ 1 የመልመጃ ጥያቄዎች

በዚህ ምዕራፍ ላይ የተጻፉ 10 የምርጫ ጥያቄዎች፣ እያንዳንዳቸው መልሱና ምክንያቱ አላቸው። መልሱን ከመክፈትዎ በፊት ይሞክሩ። ጥያቄዎቹ በእንግሊዝኛ ናቸው።

ጥያቄ 1

Which statement best defines chemistry?

  1. A.The study of planets and stars in space.
  2. B.The science that deals with the properties, composition, and structure of substances, the transformations they undergo, and the energy released or absorbed during these processes.
  3. C.The study of living things only.
  4. D.The study of rocks and the earth only.
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B The science that deals with the properties, composition, and structure of substances, the transformations they undergo, and the energy released or absorbed during these processes.

ምክንያቱ

The unit defines chemistry as the science that deals with the properties, composition, and structure of substances, the transformations they undergo, and the energy that is released or absorbed. Studying living things is biology, and studying rocks and the earth is geology.

ጥያቄ 2

Which branch of chemistry is the study of substances containing carbon?

  1. A.Inorganic chemistry
  2. B.Analytical chemistry
  3. C.Physical chemistry
  4. D.Organic chemistry
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ D Organic chemistry

ምክንያቱ

Organic chemistry is the study of substances containing carbon. Inorganic chemistry studies substances that are, in general, not primarily based on carbon.

ጥያቄ 3

According to the unit, geology is the study of what?

  1. A.Living things
  2. B.Matter and energy
  3. C.Rocks and the earth
  4. D.Chemical processes in living matter
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ C Rocks and the earth

ምክንያቱ

The unit says that geology is the study of rocks and the earth. Matter and energy belong to physics, and chemical processes in living matter belong to biochemistry.

ጥያቄ 4

Which group of drugs is used to kill microbes present in toilets, floors, and drains?

  1. A.Disinfectants
  2. B.Analgesics
  3. C.Anesthetics
  4. D.Tranquilizers
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ A Disinfectants

ምክንያቱ

The unit says disinfectants are used to kill the microbes present in toilets, floors, and drains. Analgesics relieve pain, anesthetics relieve pain during operations, and tranquilizers calm patients with mental diseases.

ጥያቄ 5

Table 1.1 lists some large and medium scale chemical enterprises in Ethiopia. How many of the listed enterprises are in the region shown as A.A (Addis Ababa)?

  1. A.4
  2. B.5
  3. C.7
  4. D.6
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ D 6

ምክንያቱ

In Table 1.1, the enterprises in A.A are Chorra Gas and Chemical, Moha Soft Drinks CO2 Factory, Nefas Silk Paints, Kadisco Chemical Industry, Y.B Cosmetics, and Mekabe PLC (Cosmetics). That is 6 enterprises.

ጥያቄ 6

The Grand Ethiopian Renaissance Dam (GERD) is located on the Blue Nile. According to the unit, how far upstream is it from the border with Sudan?

  1. A.3 km
  2. B.300 km
  3. C.30 km
  4. D.6,450 km
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ C 30 km

ምክንያቱ

The unit says the GERD is located about 30 km upstream of the border with Sudan. The number 6,450 is the power of the project in MW, not a distance.

ጥያቄ 7

Which of the following is a chemical fertilizer named in the unit?

  1. A.Urea
  2. B.Penicillin
  3. C.Cisplatin
  4. D.Taxol
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ A Urea

ምክንያቱ

The unit lists calcium super phosphate, urea, ammonium sulphate, and sodium nitrate as chemical fertilizers. Penicillin, cisplatin, and Taxol are named in the medicine section, not as fertilizers.

ጥያቄ 8

The unit says carbon is capable of forming a very large number of chemicals. How many chemicals does it say carbon can form so far?

  1. A.Over two thousand
  2. B.Over two hundred thousand
  3. C.Over twenty million
  4. D.Over two billion
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ C Over twenty million

ምክንያቱ

The organic chemistry section says carbon is capable of forming a tremendously vast number of chemicals, over twenty million so far.

ጥያቄ 9

Which field of chemistry deals with the processes that control the abundance, composition, and distribution of chemical compounds and isotopes in geologic environments?

  1. A.Geochemistry
  2. B.Biochemistry
  3. C.Medicinal chemistry
  4. D.Chemical physics
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ A Geochemistry

ምክንያቱ

The unit defines geochemistry as the overlap between chemistry and geology, and describes it as the study of the processes that control the abundance, composition, and distribution of chemical compounds and isotopes in geologic environments.

ጥያቄ 10

The unit discusses the drug AZT, which is used for AIDS victims. Which statement about AZT is correct according to the unit?

  1. A.It cures HIV-AIDS completely.
  2. B.It fights the multiplication of the virus and prolongs the life of the victim.
  3. C.It prevents all infection from the virus.
  4. D.It is an antiseptic used to clean wounds.
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B It fights the multiplication of the virus and prolongs the life of the victim.

ምክንያቱ

The unit says AZT does not cure HIV-AIDS. It fights the multiplication of the virus, which prolongs the life of the victim.

መተግበሪያው በዚህ ምዕራፍ ላይ 12 ጥያቄዎች አሉት፤ እየሠሩ ያርምዎታል። እዚህ ያሉት የመጀመሪያዎቹ 10 ናቸው።

የምዕራፍ 1 የመፅሐፍ ገጾች

ምዕራፍ 1 በየትምህርት ሚኒስቴር እትም ከገጽ 1 እስከ ገጽ 18 ይደርሳል።

የትምህርት ሚኒስቴር እትም, እንግሊዝኛ, 186 ገጾች

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ይህን ምዕራፍ በመተግበሪያው ይለማመዱ

Temari ይህን ምዕራፍ ወደ ጊዜ የተቆረጠለት መልመጃ ይለውጠዋል፣ እየሠሩ ያርምዎታል፤ ያልገባዎትንም የሚያብራራ የ AI አስተማሪ አለ።

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ይግቡመለያዎን ይክፈቱ