-- ENTRANCE EXAMINATION

ለነገ የsocial ተማሪዎች ይህን maths ጥያቄ ጽፋቹ ሰርታችሁ ኑ ተብላችኋል

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📌 Punctuations Punctuation marks such as semicolons (;), colons (:), and commas (,) are used to clarify the structure and meaning of sentences. Here's a brief explanation of when and how to use them: 1. Semicolon (;): - Use a semicolon to separate two independent clauses (complete sentences) that are closely related in meaning but not connected by a coordinating conjunction (e.g., and, but, or). Example: I have an exam tomorrow; I need to study tonight. - Use a semicolon to separate items in a list when the items themselves contain commas. Example: The countries I want to visit are Italy, with its rich history; France, known for its cuisine; and Japan, famous for its technology. 2. Colon (:): - Use a colon to introduce a list, explanation, or elaboration. Example: There are three primary colors: red, blue, and yellow. - Use a colon to introduce a quotation or a speech. Example: The teacher said: "Education is the key to success." 3. Comma (,): - Use a comma to separate items in a list. Example: I need to buy apples, oranges, and bananas. - Use a comma to separate two independent clauses when they are connected by a coordinating conjunction. Example: I studied hard for the exam, but I still didn't get a good grade. - Use a comma to set off introductory words, phrases, or clauses. Example: However, I managed to finish the project on time. - Use a comma to set off nonessential information or interrupters. Example: The book, which I borrowed from the library, was very interesting. Remember, these are general guidelines, and there may be exceptions or additional rules depending on the context.

Short description of parts of speech

እነዚህን የያዘ ተማሪ በትንሹ ኢንትራንስ ላይ 20 ጥያቄ  ይሰራል ። 📘አንድ የ12ኛ ክፍል ተማሪ ሊያውቃቸው የሚገቡ የ Physics ፎርሙላዎች ✅ Kinematics • Displacement: s = ut + 1 / 2at² where s is displacement, u is initial velocity, a is acceleration, and t is time. • Final Velocity: v = u + at where v is final velocity. • Velocity-Time Relation: v² = u² + 2as ✅Dynamics • Newton's Second Law: F = ma where F is force, m is mass, and a is acceleration. • Weight: W = mg where W is weight and g is acceleration due to gravity (9.81   m/s²). ✅Work, Energy, and Power • Work Done: W = Fd cos(θ) where d is displacement and θ is the angle between force and displacement. • Kinetic Energy: KE = 1 / 2mv² • Potential Energy: PE = mgh • Power: P = W / t = Fv ✅Momentum • Momentum: p = mv • Impulse: J = F Δ t = Δ p ✅ Circular Motion • Centripetal Force: F_c = mv² / r • Centripetal Acceleration: a_c = v² / r ✅. Gravitation • Gravitational Force: F = G m₁ m₂ / r² where G is the gravitational constant. ✅ Oscillations and Waves • Period of a Pendulum: T = 2π√()g} • Wave Speed: v = fλ where f is frequency and λ is wavelength. ✅Thermodynamics • First Law of Thermodynamics: Δ U = Q - W where U is internal energy, Q is heat added to the system, and W is work done by the system. • Ideal Gas Law: PV = nRT where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature in Kelvin. ✅Electromagnetism • Ohm's Law: V = IR • Coulomb's Law: F = kq₁ q₂ / r² • Electric Field: E = F / q ✅ Optics • Lens Formula: 1 / f = 1 / dₒ + 1 / dᵢ • Magnification: m = -dᵢ / do

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