𝐒𝐂𝐈𝐄𝐍𝐂𝐄 𝐒𝐏𝐄𝐂𝐓𝐑𝐔𝐌
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Repost from Book life 🧬
ያለፈውን ስመለከት፣ በከንቱ እና በስህተት ባባከንኳቸው አመታት፣ ልቤ በህመም ይደማል። ህይወት ስጦታ ነች። ህያዋን ይህን ቢያውቁ ኖሮ አሁን ህይወታቸው ትቀየር ነበር፣ አሁን እንደገና ይጀምሩ ነበር።ግን ይሄን የሚያውቁት ጊዜያቸውን የገደሉትና ዕድሜያቸውን በከንቱ የጨረሱት ብቻ ናቸው።
📕 ዶስቶየቭስኪ በሳይቤሪያ እስር ቤት ውስጥ ሆኖ የፃፈው
https://t.me/lifeisbookC
🌺Biology🌺
Grade 12
Unit -2 :Microorganisms
• • • • •
Definition :Microorganisms are organisms that can be seen with the aid of microscope.
✅There are two types of cells based on their structure and complexity
•𝚙𝚛𝚘𝚔𝚊𝚛𝚢𝚘𝚝𝚒𝚌 𝚌𝚎𝚕𝚕𝚜:are unicellular organisms that are not membrane-bound organelles(nucleus🧠,mitochondria and chloroplasts🟢)
-have continuous loop and no chromosome
- Respiration takes place in the 𝐦𝐞𝐬𝐨𝐬𝐨𝐦𝐞 of the cell membrane.
•𝙴𝚔𝚞𝚊𝚛𝚢𝚘𝚝𝚒𝚌 𝚌𝚎𝚕𝚕𝚜:have membrabe bounded organelles (nucleus,mitochondria,chloroplast.....)
•linear DNA in chromosome and Respiration takes place in 𝐌𝐢𝐭𝐨𝐜𝐡𝐨𝐧𝐝𝐫𝐢𝐚.
Have a good day🥰
Velocity-Time Graph
It is the graph of velocity against time; it shows us how the velocity changes with respect to time. The slope of a velocity-time graph determines its acceleration.
Above is the velocity-time graph for three objects A, B, and C. A flat horizontal line in a velocity-time graph states that the body is moving at a constant velocity. If the straight line has a slope, then that indicates the body is changing its velocity at a constant rate, or it means that the body has constant acceleration.
Above is the velocity-time graph for three objects A, B, and C. A flat horizontal line in a velocity-time graph states that the body is moving at a constant velocity. If the straight line has a slope, then that indicates the body is changing its velocity at a constant rate, or it means that the body has constant acceleration.Above is the velocity-time graph for three objects A, B, and C. A flat horizontal line in a velocity-time graph states that the body is moving at a constant velocity.
Distance-Time Graph for Uniform Motion
Let us now consider a distance-time graph in which the body is moving with uniform motion. A body is said to be in uniform motion when the body covers an equal distance in equal time intervals. Let’s consider a time interval of 1 second, If a body covers 10 meters in the first 1-second then it should cover 10 meters in every second from there on, this will indicate that the body is in uniform motion. Let’s draw a graph for uniform motion.
As in uniform motion, the distance-time graph would be a straight line, because the equal distance is covered in equal units of time.
You can see that there are three bodies A, B and C, all of them are in uniform motion then why do they have different slopes?
It is because the slope of a distance-time graph determines the speed of that body, so the steeper the slope greater will be the speed of the body. From the above graph, we can come to a conclusion that body A has the highest speed and body C has the least speed.
Motion Graphs
Distance-time graph is the plot of distance travelled by a body against time. So it will tell us about the journey made by a body and its speed. Below is an example of a distance-time graph, if it is a straight horizontal line then the body is stationary, and its speed is zero, if the line is diagonal then it is moving with a constant speed and if it is anything other than a straight line then the speed is varying.
🌟 Join the 𝑶𝒎𝒐 𝑨𝒄𝒂𝒅𝒆𝒎𝒚 Team! 🌟
🚀 We're Expanding! Omo Academy is looking for dedicated and passionate Adminers to join our vibrant Telegram channel. If you're in Grade 9, 10, 11, or 12, this is your chance to make a difference!
🔍 Positions Available:
• Grade 9: 2 Adminers
• Grade 10: 2 Adminers
• Grade 11: 1 Adminer
• Grade 12: 2 Adminers
✨ What We Need from You:
• Daily Notes
• Weekly Questions
• Live Stream Contro𝐥
• Resource Fulfillment
📚 All materials should be aligned with Ethiopian entrance exam standards.
🔗 Ready to make an impact?
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💡 Omo Academ𝘆
𝙸𝚜 𝚢𝚘𝚞𝚛 𝚙𝚊𝚝𝚑 𝚠𝚊𝚢 𝚝𝚘 𝚜𝚞𝚌𝚌𝚎𝚜𝚜 !
🌟 Join the 𝑶𝒎𝒐 𝑨𝒄𝒂𝒅𝒆𝒎𝒚 Team! 🌟
🚀 We're Expanding! Omo Academy is looking for dedicated and passionate Adminers to join our vibrant Telegram channel. If you're in Grade 9, 10, 11, or 12, this is your chance to make a difference!
🔍 Positions Available:
• Grade 9: 2 Adminers
• Grade 10: 2 Adminers
• Grade 11: 1 Adminer
• Grade 12: 2 Adminers
✨ What We Need from You:
• Daily Notes
• Weekly Questions
• Live Stream Contro𝐥
• Resource Fulfillment
📚 All materials should be aligned with Ethiopian entrance exam standards.
🔗 Ready to make an impact?
Join us 👇👇👇👇👇
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💡 Omo Academ𝘆
𝙸𝚜 𝚢𝚘𝚞𝚛 𝚙𝚊𝚝𝚑 𝚠𝚊𝚢 𝚝𝚘 𝚜𝚞𝚌𝚌𝚎𝚜𝚜 !
🌺Tag Questions🌺
The question tag is: a short phrase spoken or written at the end of a statement that changes the statement into a question, just like the previous sentence did.
Question tag ከአረፍተ ነገር በኋላ ጥያቄ ለመጠየቅ የምንጠቀምበት ዘዴ ነው ። ለምሳሌ እናታችሁ ስኳር ግዙ ብላ ወደ ሱቅ ብትልካችሁ ፤ እናተም ባለሱቁን * 1 ኪሎ ስኳር ስጠኝ የለም እንዴ ???
አያችሁ 'የለም እንዴ' የሚለው ' 1 ኪሎ ስኳር ስጠኝ ' ከሚለው ላይ የተጨመረ ነው ማለት ነው ። tag question ም እንዚሁ ነው ። ነው እንዴ ፣ አይደለም እንዴ mostly የሆነ የተፈፀመን ድርጊት ለማረጋገጥ የሚያገለግል ነው ። የተጠየቀው ሰውም አዎ ወይም አይ የሚል አጭር መልስ ይመልሳል ። ነገር ግን
✍️አረፍተ ነገሩ posetive ከሆነ tag question negative ይሆናል ።
✍️አረፍተ ነገሩ - ከሆነ tag question + ይሆናል ።
🙄 ግራ እንዳትጋቡ
🧚ስኳር አለ, የለም እንዴ ?
🧚ስኳር የለም, አለ እንዴ ?
😁 አሁን ገባችኋ
For example, some common question tags are ''don't you?'' and ''is it?''
እስኪ አሁን ደግሞ አጠቃቀሙን እንመልከት ። ከዚህ በታች የተዘረዘሩትን ምሳሌዎች በደንብ ተመልከቷቸው እና ተመልሰን እንገናኝ ።
🧚. A tag question is a short question .
Examples
🌹You haven't seen this film, have you?
🌹Your sister lives in Spain, doesn't she? ...
🌹She's a doctor, isn't she? ...
🌹He isn't here, is he? ...
🌹I don't need to finish this today, do I? ...
🌹Jenni eats cheese, doesn't she? ...
🌹The bus stop's over there, isn't it? ...
🌹They could hear me, couldn't they? ...
🌹I'm never on time, am I?
ምን አስታዋላችሁ ??? 🤔🤔🤔
Rule 1 በ tag question ጊዜ comma በ ዓረፍተ ነገሩ እና tagu መሀል ይገባል ። 😃
Rule 2 በ tag question ጊዜ verb + subject አይነት ፎርም ብቻ እንጠቀማለን ።ምሳሌ
, am I?
doesn't she?
isn't she?
Rule 3 በ tag question ጊዜ
✍️አረፍተ ነገሩ + ከሆነ tag question - ይሆናል ።
✍️አረፍተ ነገሩ - ከሆነ tag question + ይሆናል ።
Rule 4 tagu ላይ የምንጠቀመው tense ከ ዓረፍተ ነገሩ ጋር ተመሳሳይ መሆን አለበት ። ምሳሌ
🌹You haven't seen this film, have you? (perfect - perfect )
🌹They could hear me, couldn't they? (past-past)
I think በደንብ ግልጽ ነው ። ይበልጥ እንዲገባችሁ ለማድረግ ደግሞ ከታች ፎቶ እና ኖት አስቀምጠንላችኋል ። እንወዳችኋለን መልካም የትምህርት ዘመን ።
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
ይለቀቁ የምትሉት ሼር በማድረግ ቻነላችንን ወደ 2K subscribers !
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
+1
Biology and Mathematics Grade 11-12 Extreme Series (New Curriculum)
የምትፈልጉ ተማሪዎች Like በማድረግ አሳውቁን !
በተጨማሪም
ይለቀቁ የምትሉት ሼር በማድረግ ቻነላችንን ወደ 2K subscribers !
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
Biology and Mathematics Grade 11-12 Extreme Series (New Curriculum)
የምትፈልጉ ተማሪዎች Like በማድረግ አሳውቁን !
በተጨማሪም
ይለቀቁ የምትሉት ሼር በማድረግ ቻነላችንን ወደ 2K subscribers !
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
ሰላም ተማሪዎች
''ሁሉም ኢትዮጵያዊ በአንድ ትምህርት ቤት ''
የ2017 ዓ.ም ትምህርት ዘመን ከተጀመረ ወዲህ ሶስት ወራትን አስቆጥረናል።
🔰 በእነዚህ በሶስቱ ወራት በየትምህርት ቤታችሁ Test, Quiz እና Mid exam የተፈተናችሁ ተማሪዎች እና
ከቀጣዩ ሳምንት ጀምሮ በትምህርት ቤታችሁ Mid የሚፈትኑ ተማሪዎች ያለፈውን የፈተና ወረቀታችሁን ፎቶ አንስታችሁ ለእኛ ከታች ባለው ሊንክ attach ያድርጉ።
👇👇👇👇👇👇👇
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@AMBESSA2024
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🔰 በጣም ምርጥ የሆነውን ጥያቄ አይተን ለተከታዮቻችን በየ ሳምንቱ እሁድ ወይም ቅዳሜ በዚህ እናስቀምጣለን።
🔰 ይህንን ፈተናውን ላሸነፉ እና የላኩን ተማሪዎች ሽልማት እንሰጣለን።
ከባድ የምትሉት ጥያቄ ካለ ከፈተና በኃላ እንሰራለን።
የፈተና ወረቀት የያዛችሁ ተማሪዎች ከአሁኑ ፎቶ አንስታችሁ ይላኩልን !
🔰የትምህርት ዓይነቶች:
📖 CHEMISTRY
📖 BIOLOGY
📖 MATHEMATICS
📖 PHYSICS
📖 ENGLISH
📖 SAT
ይህ አገልግሎት ለሁሉም ተማሪዎች እንድደርስ በተለያዩ ግሩፖች ሼር በማድረግ ይተባበሩን።
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
Force and Torque Physics
Force and torque are both crucial concepts in physics, but they describe different aspects of motion and interaction. Here's a breakdown of their key differences:
Force:
• Definition: A force is a push or pull that can cause a change in an object's motion (acceleration) or its shape (deformation). It's a vector quantity, meaning it has both magnitude (size) and direction.
• Effect: A force acting on an object can cause it to accelerate (change its velocity) in the direction of the force. Newton's second law (F=ma) describes this relationship.
• Measurement: Measured in Newtons (N).
• Examples: Pushing a box, pulling a rope, gravitational pull on an object.
Torque (or Moment):
• Definition: Torque is a measure of how much a force acting on an object causes that object to rotate. It's also a vector quantity, with both magnitude and direction (the direction of rotation).
• Effect: Torque causes a change in an object's rotational motion (angular acceleration).
• Measurement: Measured in Newton-meters (Nm).
• Factors determining torque: Magnitude of the force, distance from the pivot point (the point of rotation) to where the force is applied, and the angle between the force and the lever arm (the line connecting the pivot point to the point of force application).
• Formula: Torque (τ) = Force (F) x Distance (r) x sin(θ), where θ is the angle between the force vector and the lever arm.
• Examples: Turning a doorknob, tightening a bolt with a wrench, pedaling a bicycle.
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
| Basic biology important terms and definitions
🌟 bioinformatics_The application of computer technology to the management of biological information.
🌟 dendrite_A short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
🌟 ectoderm_The outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis, nerve tissue, and nephridia.
🌟 denaturation_A process in which proteins or nucleic acids lose the quaternary, tertiary, and secondary structure which is present in their native state, when exposed to some external stress or chemical compound such as a strong acid or base, a concentrated inorganic salt, or an organic solvent.
🌟 ectotherm_An organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature compared to ambient sources of heat. Ectotherms generally experience changes in body temperature that closely match changes in the temperature of their environment; colloquially, these organisms are often referred to as "cold-blooded".
🌟 facultative anaerobe_An organism which is capable of producing energy through aerobic respiration and then switching to anaerobic respiration depending on the amounts of oxygen and fermentable material in the environment.
🌟 phenotype_The composite of an organism's observable features or traits, such as its morphology, development, biochemical or physiological properties, behavior, and products of behavior.
🌟 T cell_A type of lymphocyte that plays a central role in cell-mediated immunity.
🌟 B cell_A type of lymphocyte in the humoral immunity of the adaptive immune system.
🌟 plasmolysis_The process in which cells lose water in a hypertonic solution.
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖
📘Maths
1. What is the value of sin(0)?
a) 0
b) 1
c) -1
d) undefined
Answer: a) 0
2. Which of the following is an identity?
a) sin(a+b) = sin(a) + sin(b)
b) cos(a+b) = cos(a) + cos(b)
c) tan(a+b) = tan(a) + tan(b)
d) sin(2a) = 2sin(a)
Answer: d) sin(2a) = 2sin(a)
3. What is the period of the function f(x) = 2sin(x)?
a) π
b) 2π
c) 4π
d) 1
Answer: b) 2π
4. If sin(x) = 3/5, what is the value of cos(x)?
a) 4/5
b) 3/4
c) 4/3
d) 5/3
Answer: a) 4/5
5. What is the amplitude of the function f(x) = 3cos(2x)?
a) 1
b) 2
c) 3
d) 6
Answer: c) 3
6. Which of the following is a Pythagorean identity?
a) sin^2(a) + cos^2(a) = 1
b) tan^2(a) + 1 = sec^2(a)
c) cot^2(a) + 1 = csc^2(a)
d) all of the above
Answer: d) all of the above
7. What is the value of tan(π/4)?
a) 0
b) 1
c) -1
d) undefined
Answer: b) 1
8. If f(x) = sin(x) and g(x) = cos(x), what is the value of f(π/2) + g(π/2)?
a) 0
b) 1
c) 2
d) -1
Answer: c) 2
9. What is the phase shift of the function f(x) = sin(x + π/2)?
a) π/2
b) -π/2
c) π
d) -π
Answer: b) -π/2
10. Which of the following is a sum identity?
a) sin(a+b) = sin(a)cos(b) + cos(a)sin(b)
b) cos(a+b) = cos(a)cos(b) - sin(a)sin(b)
c) tan(a+b) = (tan(a) + tan(b))/(1 - tan(a)tan(b))
d) all of the above
Answer: d) all of the above
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𝐎𝐌𝐎 𝐀𝐂𝐀𝐃𝐄𝐌𝐘
𝒀𝒐𝒖𝒓 𝒑𝒂𝒕𝒉 𝒘𝒂𝒚 𝒕𝒐 𝒔𝒖𝒄𝒄𝒆𝒔𝒔 !
𝗢𝗠𝗢_𝗔𝗖𝗔𝗗𝗘𝗠𝗬:
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