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🪐common physics concepts 🌟Newton's Laws of Motion: These three laws describe how objects move when forces are applied to them. ⭐️Conservation of Energy: Energy cannot be created or destroyed, only transformed from one form to another. 🟢Momentum: The product of an object's mass and its velocity, which describes its tendency to keep moving. ⬜️Force: Interaction that changes an object's state of motion or shape.   🟢Energy: Capacity to do work or cause change; exists in various forms like kinetic, potential, and thermal energy. ⭐️Motion: Change in position of an object over time; described by velocity, acceleration, and distance. ⭐️Gravity: Force of attraction between objects with mass; described by Newton's Law of Universal Gravitation. 🌟Electricity: Flow of electric charge; described by concepts like voltage, current, and resistance. ⭐️Magnetism: Force exerted by magnets; involves magnetic fields and magnetic interactions between objects. ⭐️Thermodynamics: Study of heat and its relation to energy and work; includes laws governing energy transfer and transformation. 🌟Waves: Disturbances that carry energy through a medium or space; described by wavelength, frequency, and amplitude. 🌟Optics: Study of light and its interactions with matter; includes reflection, refraction, and diffraction. ⭐️Quantum Mechanics: Physics of very small particles; deals with uncertainty, wave-particle duality, and quantum states. 🌟Relativity-Theory describing the relationship between space and time; includes Special and General theories of relativity. 📌Join and share 👇👇👇              ✳️  @Ethio600   🎯              ✳️  @Ethio600   🎯

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መልካም የእናቶች ቀን ይሁንልን! በኮሜንት ላይ ሁላችሁም የእናታችሁን ስም እየገለፃቹ መልካም ምኞት ተመኙ❤️ 📌Join and share 👇👇👇              ✳️  @Ethio600   🎯              ✳️  @Ethio600   🎯

1. Who proposed the planetary model of the atom? a) Ernest Rutherford b) Niels Bohr c) J.J. Thomson d) James Chadwick 2. Which subatomic particle has a positive charge? a) Electron b) Proton c) Neutron d) Nucleus 3. What is the approximate mass of an electron? a) 1 atomic mass unit (amu) b) 1/2 atomic mass unit (amu) c) 1/1836 atomic mass unit (amu) d) 1836 atomic mass units (amu) 4. Which of the following is NOT a fundamental particle? a) Quark b) Lepton c) Photon d) Neutrino 5. Who discovered the existence of neutrons? a) Ernest Rutherford b) Niels Bohr c) J.J. Thomson d) James Chadwick 6. What is the maximum number of electrons that can occupy the first energy level of an atom? a) 2 b) 4 c) 8 d) 16 7. What is the charge of an atom that has gained two electrons? a) -1 b) -2 c) +1 d) +2 8. What is the atomic number of an atom? a) The number of protons in the nucleus b) The number of electrons in the nucleus c) The total number of protons and neutrons in the nucleus d) The total number of electrons in the atom 9. What is an isotope? a) An atom with a different number of neutrons b) An atom with a different number of protons c) An atom with a different number of electrons d) An atom with a different number of energy levels 10. Which of the following best describes the electron cloud model? a) Electrons are arranged in discrete energy levels around the nucleus. b) Electrons are located in specific orbits around the nucleus. c) Electrons are spread out in a cloud-like region around the nucleus. d) Electrons are confined to specific regions within the nucleus. Answers: 1. b) Niels Bohr 2. b) Proton 3. c) 1/1836 atomic mass unit (amu) 4. c) Photon 5. d) James Chadwick 6. a) 2 7. b) -2 8. a) The number of protons in the nucleus 9. a) An atom with a different number of neutrons 10. c) Electrons are spread out in a cloud-like region around the nucleus. 📌Join and share 👇👇👇              ✳️  @Ethio600   🎯              ✳️  @Ethio600   🎯

#HistoryQuestions |      1⃣. One of the following was not an event of the 16th century Ethiopia A .The Christian-Muslim conflict B.  The Oromo population movement C. The establishement of a permanent capital D. The Ottoman Turkish occupation of massawa 2⃣ The  Christian forces of Gelawdewos were defeated in 1559. A. At shimbra Qure B.By  Imam Ahmad Ibrahim C. By  the Adali forces of Emir Nur Mujahid D. By the Portuguese soldiers 3⃣.  The closed-door policy was violated by ................. A.Fasiledes  B.Iyasu l C.Iyasu ll      D.Iyoas E. Bakkafa 4⃣ During the reign of Iyasu l who's French physician was invited by king due to the king suffered from a skin disease? A. Pedro paez B. Oviedo C. Rodriguez D. Jaques Poncet 5⃣ which oromo clans that perished Fasil and his large army in 1588. A.mecha oromoo B. Tulema oromoo C. Jawi oromoo D. Arsi oromoo 6⃣ InJanuary 1896 why the the  Italians evacuated from their fortress at meqale? A.Due to their military strategy B. The supperioty of Ethiopian force Under the command of Ras mekonnin C. The faulty information by the double agent to Italy D. The shortage of water due to the control of the near stream water by the Ethiopians. 7⃣ who was the overall commander of the Italian army in the battle of Adwa in 1896? A. Crispi B. Oriesto Barateri C. Graziani D. major Toseli 8⃣ who was the commander of Egyptian army at the battle of   Gura? A.General Loring B. Colonel arrendrup C. General Toselli D. Warner Muzinger 9⃣ The king who was defeated at the battle of Eroge? A. king Takla Haymanot B.Emperor Tewodros II C.Emperor Tekle Giorgis D.None 1⃣0⃣ In 1887 Gerald portal of British wanted to solve peacefully the issue of : A.Italy and Ethiopia B.British and Ethiopia C.Egypt and Ethiopia D.British and France ▫️የጥያቄዉን መልስ Comment ላይ አስቀምጡልን። 📌Join and share 👇👇👇              ✳️  @Ethio600   🎯              ✳️  @Ethio600   🎯

🫵 Entrance እየቀረበ ነው ሳይቆጫቹ በጊዜ ተመዝገቡ 😊 🗣 12 ዓመት የለፋችሁበት ነው እንዳትቀልዱ 🫵🤨🫵 🏓 ለመመዝገብ 👇👇👇👇👇 @yohaboy @yohaboy

🚨 ማሳሰቢያ❗️❗️❗️ 🫵 እንደሚታወቀው Entrance ፈተና እየተቃረበ ነው ⏳⏳ እናም በዚህ ሰዓት ብዙ ከማንበብ ይልቅ ብዙ ጥያቄ መስራት በጣም ያዋጣል 😃, ለዚህም ባለፈው ዓመት 617 ያመጣው ተማሪ ካሌብ መስፍን ምስክር ነው 💪:: ✅ እኛም የዚህ ቻናል አድሚኖች ከመምህራን ጋር በመተባበር ለእናንተ ከ 2000 ዓ.ም ጀምሮ ያሉትን የ 15 ዓመት ጥያቄዎችን ከበቂ ማብራሪያ ጋር 😋 እንዲሁም ከ 600 በላይ ካመጡ የ ቀድሞ ተፈታኞ የተለያዩ tricks 😍 አዘጋጅተን እየጠበቅናችሁ ነው :: 12 ዓመት ሙሉ የለፋችሁበት ነገር ፍሬ እንዲያፈራ ከጎናችሁ ነን 🤗 ይህን ሁሉ በ 100 ብር ብቻ ማግኘት ትችላላችሁ መመዝገብ የምትፈልጉ በ ቴሌግራም 👉 @yohaboy በኩል አናግሩኝ ለመመዝገብ 👇👇👇👇👇 @yohaboy @yohaboy

Physics Hooke’s Law -Multiple Choice Questions Question 1: Hooke's Law states that the force exerted by a spring is proportional to its __? (a) length (b) width (c) mass (d) displacement ✓ Correct: d) According to Hooke's Law, the force exerted by a spring is directly proportional to the displacement or deformation of the spring from its equilibrium position. Question 2: Hooke's Law applies to which type of materials? (a) elastic materials (b) plastic materials (c) brittle materials (d) ductile materials ✓ Correct: a) Hooke's Law is applicable to elastic materials, which are those materials that can return to their original shape and size after being deformed under a certain amount of stress. Question 3: The proportionality constant in Hooke's Law is called the _? (a) spring constant (b) elastic modulus (c) stress (d) strain ✓ Correct: a) The proportionality constant in Hooke's Law is also known as the spring constant. It represents the stiffness of the spring and is usually denoted by the letter k. Question 4: According to Hooke's Law, if the displacement of a spring is doubled, the force exerted by the spring will __? (a) also double (b) be halved (c) remain the same (d) be quadrupled ✓ Correct: a) Hooke's Law states that the force exerted by a spring is directly proportional to the displacement or deformation of the spring from its equilibrium position. Thus, if the displacement of the spring is doubled, the force exerted by the spring will also double. Question 5: Hooke's Law can be used to calculate the __ of a spring? (a) length (b) width (c) mass (d) spring constant ✓ Correct: d) Hooke's Law can be used to calculate the spring constant of a spring. The spring constant represents the stiffness of the spring and is a measure of the force required to stretch or compress the spring by a certain distance. Question 6: A spring has a spring constant of 50 N/m. If a force of 10 N is applied to the spring, what is the displacement of the spring? (a) 0.2 m (b) 0.4 m (c) 0.6 m (d) 0.8 m ✓ Correct: a) According to Hooke's Law, F = kx, where F is the force applied to the spring, k is the spring constant, and x is the displacement of the spring. Rearranging this equation to solve for x, we get x = F/k = 10 N / 50 N/m = 0.2 m. Question 7: A spring is stretched 0.2 m by a force of 40 N. What is the spring constant of the spring? (a) 8 N/m (b) 20 N/m (c) 40 N/m (d) 200 N/m Answer d) According to Hooke's Law, F = kx, where F is the force applied to the spring, k is the spring constant, and x is the displacement of the spring. Rearranging this equation to solve for k, we get k = F/x = 40 N / 0.2 m = 20 0N/m. Question 8: A spring is compressed by 0.1 m. If the spring constant is 100 N/m, what is the force required to compress the spring? (a) 10 N (b) 20 N (c) 50 N (d) 100 N Answer: A) According to Hook8e's Law, F = kx, where F is the force applied to the spring, k is the spring constant, and x is the displacement of the spring. Rearranging this equation to solve for F, we get F = kx = 100 N/m x 0.1 m = 10 N. Question 9: Which scientist first formulated Hooke's Law? (a) Robert Boyle (b) Isaac Newton (c) Robert Hooke (d) Galileo Galilei ✓ Correct: c) Hooke's Law is named after the English physicist Robert Hooke, who first formulated it in the 17th century. Question 10: Which type of materials is Hooke's Law applicable to? (a) elastic materials (b) plastic materials (c) brittle materials (d) ductile materials ✓ Correct: a) Hooke's Law is applicable to elastic materials, which are those materials that can return to their original shape and size after being deformed under a certain amount of stress. 📌Join and share 👇👇👇              ✳️  @Ethio600   🎯              ✳️  @Ethio600   🎯