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Who is the first mother of physics?
Marie Curie was the first truly famous woman scientist in the modern world. She was known as the "Mother of Modern Physics" for her pioneer work in research about radioactivity.
ለ2017 12ተኛ ክፍል እና ለሪሚዲያል ተፈታኞች የሚጠቅም አሪፍ የማትሪክ አፕ ነው። ይሄን አፕ ከሌሎች በተሻለ ለናንተ ለምን እንደመረጥነው እንገራችሁ።
📆የ2014/15 ፈተናን ጨምሮ የብዙ አመት የማትሪክ ፈተናዎችን ከነመልሳቸው ይዟል(ከ10,000 በላይ ጥያቄዎች)።
🔘 ሁሉንም የሶሻል እና የናቹራል ፈተናዎች አኳቷል።
🛜 አፑን ለመጠቀም ምንም አይነት ኢንተርኔት አይጠይቅም።offline አፕ ነው።
📊ብዙዎች ጥያቄዎች በምዕራፍ እና በክፍል ደረጃ የተከፋፈሉ ስለሆኑ ብዙ ጥያቄ የሚወጣበትን ምዕራፍ ለመለየት ያስችላል።
🌐የዘንድሮ ፈተና በonline ስለሆነ አፑ አፈታተኑን እንድትለማመዱት ያግዛችኃል።
ሌሎች ያልጠቀስኳቸውን የአፑን ይዘቶች አፑን አውርዳችሁ ማየት ትችላላችሁ።
የPlaystore አካውንት የሌላችሁ ወይም ለማውረድ ለማይመቻችሁ ተማሪዎች አፑን ከዚህ ላይ ለቀንላችኃል አውርዱት።ለሌሎችም ተማሪዎች ሼር እንድታረጉ ግብዣችን ነው።
"እናንተን ለማገዝ ሁሌም ዝጉጁ ነን የሚያስፈልጋችሁ ነገር ካለ ጠይቁን።መልካም የፈተና ዝግጅት ይሁንላችሁ።"
Which of the following step of the scientific method comes before all the rest?
Which of the following statements in agreement with the modern cell theory ?
𝑻𝒉𝒆 𝑷𝒆𝒓𝒊𝒐𝒅𝒊𝒄 𝑪𝒍𝒂𝒔𝒔𝒊𝒇𝒊𝒄𝒂𝒕𝒊𝒐𝒏 𝒐𝒇 𝑬𝒍𝒆𝒎𝒆𝒏𝒕𝒔
𝑻𝒉𝒆 𝒑𝒆𝒓𝒊𝒐𝒅𝒊𝒄 𝒕𝒂𝒃𝒍𝒆.
𝑻𝒉𝒆 𝒑𝒆𝒓𝒊𝒐𝒅𝒊𝒄 𝒕𝒂𝒃𝒍𝒆 𝒊𝒔 𝒂𝒏 𝒂𝒓𝒓𝒂𝒏𝒈𝒆𝒎𝒆𝒏𝒕 𝒐𝒇 𝒅𝒊𝒇𝒇𝒆𝒓𝒆𝒏𝒕 𝒆𝒍𝒆𝒎𝒆𝒏𝒕𝒔 𝒕𝒉𝒂𝒕 𝒆𝒙𝒊𝒔𝒕 𝒊𝒏
𝒏𝒂𝒕𝒖𝒓𝒆, 𝒃𝒂𝒔𝒆𝒅 𝒐𝒏 𝒕𝒉𝒆𝒊𝒓 𝒄𝒉𝒆𝒎𝒊𝒄𝒂𝒍 𝒑𝒓𝒐𝒑𝒆𝒓𝒕𝒊𝒆𝒔 𝒂𝒏𝒅 𝒂𝒕𝒐𝒎𝒊𝒄 𝒏𝒖𝒎𝒃𝒆𝒓𝒔.
𝑬𝒍𝒆𝒎𝒆𝒏𝒕𝒔 𝒘𝒊𝒕𝒉 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒑𝒓𝒐𝒑𝒆𝒓𝒕𝒊𝒆𝒔 𝒇𝒐𝒓𝒎 𝒕𝒉𝒆 𝒈𝒓𝒐𝒖𝒑𝒔 𝒔𝒉𝒐𝒘𝒏 𝒂𝒔 𝒗𝒆𝒓𝒕𝒊𝒄𝒂𝒍 𝒄𝒐𝒍𝒖𝒎𝒏𝒔 𝒊𝒏 𝒕𝒉𝒆 𝒕𝒂𝒃𝒍𝒆.
𝑻𝒉𝒖𝒔, 𝑮𝒓𝒐𝒖𝒑 𝑰 𝒄𝒐𝒏𝒔𝒊𝒔𝒕𝒔 𝒐𝒇 𝒉𝒚𝒅𝒓𝒐𝒈𝒆𝒏 𝒑𝒍𝒖𝒔 𝒕𝒉𝒆 𝒂𝒍𝒌𝒂𝒍𝒊 𝒎𝒆𝒕𝒂𝒍𝒔, 𝒂𝒍𝒍 𝒐𝒇 𝒘𝒉𝒊𝒄𝒉 𝒂𝒓𝒆 𝒆𝒙𝒕𝒓𝒆𝒎𝒆𝒍𝒚 𝒂𝒄𝒕𝒊𝒗𝒆 𝒄𝒉𝒆𝒎𝒊𝒄𝒂𝒍𝒍𝒚 𝒂𝒏𝒅 𝒂𝒍𝒍 𝒐𝒇 𝒘𝒉𝒊𝒄𝒉 𝒉𝒂𝒗𝒆 𝒗𝒂𝒍𝒆𝒏𝒄𝒆 𝒐𝒇 +1.
𝑮𝒓𝒐𝒖𝒑 𝑽𝑰𝑰 𝒄𝒐𝒏𝒔𝒊𝒔𝒕𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒉𝒂𝒍𝒐𝒈𝒆𝒏𝒔 𝒕𝒉𝒂𝒕 𝒉𝒂𝒗𝒆 𝒗𝒂𝒍𝒆𝒏𝒄𝒆 𝒐𝒇 –1.
𝑮𝒓𝒐𝒖𝒑 𝑽𝑰𝑰𝑰 𝒄𝒐𝒏𝒔𝒊𝒔𝒕𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒊𝒏𝒆𝒓𝒕 𝒈𝒂𝒔𝒆𝒔 𝒘𝒉𝒊𝒄𝒉 𝒂𝒓𝒆 𝒄𝒉𝒆𝒎𝒊𝒄𝒂𝒍𝒍𝒚 𝒊𝒏𝒂𝒄𝒕𝒊𝒗𝒆.
𝑻𝒉𝒆 𝒉𝒐𝒓𝒊𝒛𝒐𝒏𝒕𝒂𝒍 𝒓𝒐𝒘𝒔 𝒂𝒓𝒆 𝒄𝒂𝒍𝒍𝒆𝒅 𝑷𝒆𝒓𝒊𝒐𝒅𝒔. 𝑨𝒔 𝒘𝒆 𝒈𝒐 𝒇𝒓𝒐𝒎 𝒍𝒆𝒇𝒕 𝒕𝒐 𝒓𝒊𝒈𝒉𝒕 𝒊𝒏 𝒕𝒉𝒆 𝒔𝒂𝒎𝒆 𝒑𝒆𝒓𝒊𝒐𝒅, 𝒕𝒉𝒆
𝒄𝒉𝒆𝒎𝒊𝒄𝒂𝒍 𝒂𝒏𝒅 𝒑𝒉𝒚𝒔𝒊𝒄𝒂𝒍 𝒑𝒓𝒐𝒑𝒆𝒓𝒕𝒊𝒆𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒆𝒍𝒆𝒎𝒆𝒏𝒕𝒔 𝒗𝒂𝒓𝒚 𝒈𝒓𝒂𝒅𝒖𝒂𝒍𝒍𝒚 𝒂𝒔 𝒕𝒉𝒆 𝒂𝒕𝒐𝒎𝒊𝒄 𝒏𝒖𝒎𝒃𝒆𝒓 𝒊𝒏𝒄𝒓𝒆𝒂𝒔𝒆𝒔.
𝗝𝗢𝗜𝗡 𝗨𝗦 𝗙𝗢𝗥 𝗠𝗢𝗥𝗘
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𝑻𝒉𝒆 𝑪𝒐𝒎𝒑𝒐𝒔𝒊𝒕𝒊𝒐𝒏 𝒐𝒇 𝑩𝒍𝒐𝒐𝒅
❤ 𝑩𝒍𝒐𝒐𝒅 𝒄𝒂𝒏 𝒄𝒐𝒏𝒗𝒆𝒚 𝒂 𝒍𝒐𝒕 𝒐𝒇 𝒊𝒏𝒇𝒐𝒓𝒎𝒂𝒕𝒊𝒐𝒏 𝒂𝒃𝒐𝒖𝒕 𝒂 𝒑𝒆𝒓𝒔𝒐𝒏.
𝑰𝒕 𝒄𝒐𝒏𝒕𝒂𝒊𝒏𝒔 𝒂 𝒑𝒆𝒓𝒔𝒐𝒏’𝒔 𝒖𝒏𝒊𝒒𝒖𝒆 𝒈𝒆𝒏𝒆𝒕𝒊𝒄 𝒑𝒓𝒐𝒇𝒊𝒍𝒆.
❤𝑰𝒕 𝒄𝒂𝒏 𝒔𝒊𝒈𝒏𝒂𝒍 𝒕𝒉𝒆 𝒑𝒓𝒆𝒔𝒆𝒏𝒄𝒆 𝒐𝒇 𝒄𝒆𝒓𝒕𝒂𝒊𝒏 𝒅𝒊𝒔𝒆𝒂𝒔𝒆𝒔, 𝒔𝒖𝒄𝒉 𝒂𝒔 𝒄𝒂𝒏𝒄𝒆𝒓, 𝒂𝒏𝒅 𝒊𝒏𝒅𝒊𝒄𝒂𝒕𝒆 𝒅𝒆𝒇𝒊𝒄𝒊𝒆𝒏𝒄𝒊𝒆𝒔 𝒐𝒓 𝒄𝒉𝒆𝒎𝒊𝒄𝒂𝒍
𝒊𝒎𝒃𝒂𝒍𝒂𝒏𝒄𝒆𝒔 𝒊𝒏 𝒕𝒉𝒆 𝒃𝒐𝒅𝒚, 𝒔𝒖𝒄𝒉 𝒂𝒔 𝒊𝒓𝒐𝒏 𝒅𝒆𝒇𝒊𝒄𝒊𝒆𝒏𝒄𝒚.
❤𝑨𝒏 𝒊𝒏𝒅𝒊𝒗𝒊𝒅𝒖𝒂𝒍’𝒔 𝒓𝒊𝒔𝒌 𝒐𝒇
𝒔𝒖𝒇𝒇𝒆𝒓𝒊𝒏𝒈 𝒉𝒆𝒂𝒓𝒕 𝒅𝒊𝒔𝒆𝒂𝒔𝒆 𝒂𝒏𝒅 𝒘𝒉𝒆𝒕𝒉𝒆𝒓 𝒐𝒓 𝒏𝒐𝒕 𝒂 𝒑𝒆𝒓𝒔𝒐𝒏 𝒉𝒂𝒔 𝒃𝒆𝒆𝒏 𝒆𝒙𝒑𝒐𝒔𝒆𝒅 𝒕𝒐 𝒂 𝒕𝒐𝒙𝒊𝒄 𝒔𝒖𝒃𝒔𝒕𝒂𝒏𝒄𝒆 𝒄𝒂𝒏 𝒃𝒆 𝒅𝒆𝒕𝒆𝒓𝒎𝒊𝒏𝒆𝒅 𝒇𝒓𝒐𝒎 𝒂 𝒃𝒍𝒐𝒐𝒅 𝒔𝒂𝒎𝒑𝒍𝒆.
❤𝑩𝒍𝒐𝒐𝒅 𝒍𝒆𝒗𝒆𝒍𝒔 𝒐𝒇 𝒂𝒍𝒄𝒐𝒉𝒐𝒍 𝒐𝒓 𝒐𝒕𝒉𝒆𝒓 𝒅𝒓𝒖𝒈𝒔 𝒄𝒂𝒏 𝒊𝒏𝒅𝒊𝒄𝒂𝒕𝒆 𝒂 𝒑𝒆𝒓𝒔𝒐𝒏’𝒔 𝒅𝒆𝒈𝒓𝒆𝒆 𝒐𝒇 𝒊𝒎𝒑𝒂𝒊𝒓𝒎𝒆𝒏𝒕 𝒇𝒐𝒓 𝒑𝒆𝒓𝒇𝒐𝒓𝒎𝒊𝒏𝒈 𝒄𝒆𝒓𝒕𝒂𝒊𝒏 𝒕𝒂𝒔𝒌𝒔, 𝒔𝒖𝒄𝒉 𝒂𝒔 𝒅𝒓𝒊𝒗𝒊𝒏𝒈.
❤𝑵𝒐 𝒐𝒕𝒉𝒆𝒓 𝒃𝒐𝒅𝒊𝒍𝒚 𝒕𝒊𝒔𝒔𝒖𝒆 𝒄𝒂𝒏 𝒑𝒓𝒐𝒗𝒊𝒅𝒆 𝒔𝒖𝒄𝒉 𝒂 𝒓𝒂𝒏𝒈𝒆 𝒐𝒇 𝒊𝒏𝒇𝒐𝒓𝒎𝒂𝒕𝒊𝒐𝒏 𝒂𝒃𝒐𝒖𝒕 𝒂 𝒑𝒆𝒓𝒔𝒐𝒏’𝒔 𝒉𝒆𝒂𝒍𝒕𝒉.
𝑩𝑳𝑶𝑶𝑫 𝑰𝑺 𝑨 𝑭𝑳𝑼𝑰𝑫 𝑻𝑰𝑺𝑺𝑼𝑬
👉𝑩𝒍𝒐𝒐𝒅 𝒑𝒍𝒂𝒚𝒔 𝒂𝒏 𝒊𝒎𝒑𝒐𝒓𝒕𝒂𝒏𝒕 𝒓𝒐𝒍𝒆 𝒊𝒏 𝒎𝒂𝒏𝒚 𝒇𝒖𝒏𝒄𝒕𝒊𝒐𝒏𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒄𝒊𝒓𝒄𝒖𝒍𝒂𝒕𝒐𝒓𝒚 𝒔𝒚𝒔𝒕𝒆𝒎.
👉𝑰𝒕 𝒕𝒓𝒂𝒏𝒔𝒑𝒐𝒓𝒕𝒔 𝒏𝒖𝒕𝒓𝒊𝒆𝒏𝒕𝒔 𝒇𝒓𝒐𝒎 𝒕𝒉𝒆𝒊𝒓 𝒔𝒊𝒕𝒆 𝒐𝒇 𝒂𝒃𝒔𝒐𝒓𝒑𝒕𝒊𝒐𝒏 𝒊𝒏 𝒕𝒉𝒆 𝒅𝒊𝒈𝒆𝒔𝒕𝒊𝒗𝒆 𝒕𝒓𝒂𝒄𝒕 𝒕𝒐 𝒕𝒉𝒆 𝒄𝒆𝒍𝒍𝒔 𝒕𝒉𝒂𝒕 𝒓𝒆𝒒𝒖𝒊𝒓𝒆 𝒕𝒉𝒆𝒔𝒆 𝒏𝒖𝒕𝒓𝒊𝒆𝒏𝒕𝒔.
👉𝑩𝒍𝒐𝒐𝒅 𝒄𝒂𝒓𝒓𝒊𝒆𝒔 𝒘𝒂𝒔𝒕𝒆 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒔 𝒇𝒓𝒐𝒎 𝒕𝒉𝒆 𝒄𝒆𝒍𝒍𝒔’ 𝒂𝒄𝒕𝒊𝒗𝒊𝒕𝒊𝒆𝒔 𝒕𝒐 𝒕𝒉𝒆 𝒌𝒊𝒅𝒏𝒆𝒚𝒔 𝒇𝒐𝒓 𝒅𝒊𝒔𝒑𝒐𝒔𝒂𝒍 𝒇𝒓𝒐𝒎 𝒕𝒉𝒆 𝒃𝒐𝒅𝒚.
👉𝑰𝒕 𝒅𝒊𝒔𝒕𝒓𝒊𝒃𝒖𝒕𝒆𝒔 𝒉𝒐𝒓𝒎𝒐𝒏𝒆𝒔 𝒕𝒐 𝒐𝒓𝒈𝒂𝒏𝒔 𝒕𝒉𝒂𝒕 𝒕𝒉𝒆 𝒆𝒏𝒅𝒐𝒄𝒓𝒊𝒏𝒆 𝒔𝒚𝒔𝒕𝒆𝒎 𝒖𝒔𝒆𝒔 𝒕𝒐 𝒄𝒐𝒐𝒓𝒅𝒊𝒏𝒂𝒕𝒆 𝒑𝒉𝒚𝒔𝒊𝒐𝒍𝒐𝒈𝒊𝒄𝒂𝒍 𝒇𝒖𝒏𝒄𝒕𝒊𝒐𝒏𝒔 𝒊𝒏 𝒐𝒖𝒓 𝒃𝒐𝒅𝒊𝒆𝒔.
👉𝑹𝒆𝒅 𝒃𝒍𝒐𝒐𝒅 𝒄𝒆𝒍𝒍𝒔 𝒕𝒓𝒂𝒏𝒔𝒑𝒐𝒓𝒕 𝒐𝒙𝒚𝒈𝒆𝒏 𝒇𝒓𝒐𝒎 𝒐𝒖𝒓 𝒍𝒖𝒏𝒈𝒔 𝒕𝒐 𝒐𝒖𝒓 𝒄𝒆𝒍𝒍𝒔, 𝒘𝒉𝒊𝒍𝒆 𝒘𝒉𝒊𝒕𝒆 𝒃𝒍𝒐𝒐𝒅 𝒄𝒆𝒍𝒍𝒔 𝒂𝒓𝒆 𝒊𝒎𝒑𝒐𝒓𝒕𝒂𝒏𝒕 𝒊𝒏 𝒇𝒊𝒈𝒉𝒕𝒊𝒏𝒈 𝒊𝒏𝒇𝒆𝒄𝒕𝒊𝒐𝒏.
👉𝑶𝒖𝒓 𝒃𝒍𝒐𝒐𝒅 𝒄𝒂𝒓𝒓𝒊𝒆𝒔 𝒄𝒍𝒐𝒕𝒕𝒊𝒏𝒈 𝒇𝒂𝒄𝒕𝒐𝒓𝒔 𝒂𝒏𝒅 𝒑𝒍𝒂𝒕𝒆𝒍𝒆𝒕𝒔 𝒕𝒐 𝒉𝒆𝒍𝒑 𝒑𝒓𝒆𝒗𝒆𝒏𝒕 𝒕𝒉𝒆 𝒃𝒍𝒐𝒐𝒅 𝒍𝒐𝒔𝒔 𝒕𝒉𝒂𝒕 𝒐𝒇𝒕𝒆𝒏 𝒐𝒄𝒄𝒖𝒓𝒔 𝒘𝒊𝒕𝒉 𝒊𝒏𝒋𝒖𝒓𝒚.
👉𝑩𝒍𝒐𝒐𝒅 𝒂𝒍𝒔𝒐 𝒄𝒂𝒓𝒓𝒊𝒆𝒔 𝒉𝒆𝒂𝒕 𝒈𝒆𝒏𝒆𝒓𝒂𝒕𝒆𝒅 𝒊𝒏 𝒕𝒉𝒆 𝒃𝒐𝒅𝒚 𝒄𝒐𝒓𝒆 𝒕𝒐 𝒐𝒕𝒉𝒆𝒓 𝒑𝒂𝒓𝒕𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒃𝒐𝒅𝒚, 𝒂𝒏𝒅 𝒅𝒊𝒔𝒕𝒓𝒊𝒃𝒖𝒕𝒆𝒔 𝒘𝒂𝒕𝒆𝒓 𝒂𝒏𝒅 𝒆𝒍𝒆𝒄𝒕𝒓𝒐𝒍𝒚𝒕𝒆𝒔 𝒕𝒐 𝒂𝒍𝒍 𝒐𝒇 𝒐𝒖𝒓 𝒕𝒊𝒔𝒔𝒖𝒆𝒔.
👉𝑻𝒉𝒆 𝒕𝒊𝒔𝒔𝒖𝒆𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒃𝒐𝒅𝒚 𝒄𝒂𝒏 𝒃𝒆 𝒄𝒍𝒂𝒔𝒔𝒊𝒇𝒊𝒆𝒅 𝒊𝒏𝒕𝒐 𝒇𝒐𝒖𝒓 𝒎𝒂𝒋𝒐𝒓 𝒕𝒚𝒑𝒆𝒔:
𝒆𝒑𝒊𝒕𝒉𝒆𝒍𝒊𝒂𝒍, 𝒎𝒖𝒔𝒄𝒖𝒍𝒂𝒓, 𝒏𝒆𝒓𝒗𝒐𝒖𝒔, 𝒂𝒏𝒅 𝒄𝒐𝒏𝒏𝒆𝒄𝒕𝒊𝒗𝒆.
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1. Speed: In uniform motion, speed remains constant, while in uniformly accelerated motion, speed changes over time.
2. Acceleration: Uniform motion has zero acceleration, whereas uniformly accelerated motion has a constant, non-zero acceleration.
3. Distance Covered: In uniform motion, equal distances are covered in equal time intervals. In uniformly accelerated motion, the distance covered increases (or decreases) over time, typically following a quadratic relationship.
▎Another Types of Motions
1. Translational Motion: Movement in which an object changes its position.
• Causes: Force applied.
• Physicists: Isaac Newton.
2. Rotational Motion: Movement around an axis.
• Causes: Torque applied.
• Physicists: Leonhard Euler.
3. Oscillatory Motion: Repetitive back-and-forth movement around an equilibrium position.
• Causes: Restoring forces (like springs).
• Physicists: Robert Hooke (Hooke's Law).
4. Periodic Motion: Motion that repeats at regular intervals.
• Causes: Forces acting periodically.
• Physicists: Galileo Galilei (pendulum studies).
5. Linear Motion: Motion along a straight line.
• Causes: Constant velocity or acceleration.
• Physicists: Galileo Galilei (concept of inertia).
6. Projectile Motion: Motion of an object thrown into the air, subject to gravity.
• Causes: Initial velocity and gravitational force.
• Physicists: Galileo Galilei (studies of projectiles).
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የ11ኛ ክፍል ፊዚክስ ምዕራፍ 3
𝐆𝐑𝐀𝐃𝐄 11 𝐏𝐇𝐘𝐒𝐈𝐂𝐒 𝐔𝐍𝐈𝐓 3
𝑴𝑶𝑻𝑰𝑶𝑵 𝑰𝑵 1𝑨𝑵𝑫 2 𝑫𝑰𝑴𝑬𝑵𝑺𝑰𝑶𝑵𝑺
𝐿𝑒𝑎𝑟𝑛𝑖𝑛𝑔 𝑜𝑢𝑡𝑐𝑜𝑚𝑒𝑠:
👉𝐹𝑢𝑛𝑑𝑎𝑚𝑒𝑛𝑡𝑎𝑙 𝑝𝑟𝑖𝑛𝑐𝑖𝑝𝑙𝑒𝑠 𝑜𝑓 𝑘𝑖𝑛𝑒𝑚𝑎𝑡𝑖𝑐𝑠 𝑖𝑛 𝑜𝑛𝑒
𝑎𝑛𝑑 𝑡𝑤𝑜 𝑑𝑖𝑚𝑒𝑛𝑠𝑖𝑜𝑛𝑠.
👉𝐸𝑞𝑢𝑎𝑡𝑖𝑜𝑛𝑠 𝑜𝑓 𝑚𝑜𝑡𝑖𝑜𝑛𝑠 𝑡𝑜 𝑠𝑜𝑙𝑣𝑒 𝑝𝑟𝑎𝑐𝑡𝑖𝑐𝑎𝑙
𝑝𝑟𝑜𝑏𝑙𝑒𝑚𝑠.
👉𝐸𝑓𝑓𝑒𝑐𝑡 𝑜𝑓 𝑎𝑖𝑟 𝑟𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑎𝑛𝑑 𝑓𝑜𝑟𝑐𝑒 𝑜𝑓 𝑔𝑟𝑎𝑣𝑖𝑡𝑦 𝑜𝑛 𝑚𝑜𝑡𝑖𝑜𝑛 𝑜𝑓 𝑎 𝑏𝑜𝑑𝑦.
👉𝑇𝑒𝑐ℎ𝑛𝑜𝑙𝑜𝑔𝑖𝑐𝑎𝑙 𝑎𝑑𝑣𝑎𝑛𝑐𝑒𝑠 𝑟𝑒𝑙𝑎𝑡𝑒𝑑 𝑡𝑜 𝑚𝑜𝑡𝑖𝑜𝑛
▎Motion
Motion refers to the change in position of an object with respect to a reference point over time. It is characterized by parameters such as speed, velocity, and acceleration.
▎Reference Frame or Point
A reference frame (or point) is a perspective or coordinate system used to measure and describe the position and motion of objects. It can be stationary or moving, and it provides a context for observing motion.
▎Position
Position is the specific location of an object in space relative to a reference point. It is usually described using coordinates in a defined reference frame.
▎Kinematics
Kinematics is the branch of mechanics that studies the motion of objects without considering the forces that cause this motion. It focuses on parameters like displacement, velocity, and acceleration.
▎Displacement
Definition: Displacement is the vector quantity that represents the change in position of an object. It is defined as the straight-line distance from the initial position to the final position, along with the direction.
▎Distance
Definition: Distance is the scalar quantity that represents the total length of the path traveled by an object, regardless of direction. It is always non-negative.
▎Velocity
Definition: Velocity is a vector quantity that refers to the rate of change of displacement with respect to time. It includes both speed and direction.
• Formula: v⃗ = (Δ x⃗)/(Δ t)
▎Speed
Definition: Speed is a scalar quantity that measures how fast an object is moving, regardless of its direction. It is the magnitude of velocity.
• Formula: v = d/t
▎Acceleration
Definition: Acceleration is a vector quantity that represents the rate of change of velocity with respect to time. It can indicate an increase or decrease in speed or a change in direction.
• Formula: a⃗ = (Δ v⃗)/(Δ t)
▎Instantaneous Velocity and Acceleration
• Instantaneous Velocity: The velocity of an object at a specific moment in time.
• Concept: It can be found as the limit of average velocity as the time interval approaches zero.
• Instantaneous Acceleration: The acceleration of an object at a specific moment in time.
• Concept: It can be found as the limit of average acceleration as the time interval approaches zero.
▎Average Displacement and Velocity
• Average Displacement: The total displacement divided by the time interval during which the displacement occurred.
• Formula: Average Displacement = (Δ x⃗)/(Δ t)
• Average Velocity: The total displacement divided by the total time taken.
• Formula: Average Velocity = (Δ x⃗)/(Δ t)
▎Constant Velocity and Acceleration
• Constant Velocity: When an object moves at a fixed speed in a straight line without changing direction, its velocity remains constant.
• Constant Acceleration: When an object's acceleration remains unchanged over time, meaning it experiences uniform changes in velocity.
Uniform Motion refers to motion at a constant speed in a straight line, where the object covers equal distances in equal intervals of time. In this type of motion, both the speed and direction remain unchanged. An example would be a car traveling steadily at 60 km/h on a straight road.
Uniformly Accelerated Motion, on the other hand, involves motion where the object experiences a constant acceleration. This means that the object's velocity changes uniformly over time, either increasing or decreasing. An example of this would be a car accelerating from rest at a constant rate of 2 m/s².
