Prep.2 | Science | Internal Energy and Temperature | Unit 1 - Lesson 3

شرح ساينس الصف الثاني الاعدادي لغات - الفصل الدراسي الاول شرح ساينس الثاني الاعدادي - ترم اول لينك جروب الواتساب https://whatsapp.com/channel/0029Vaed... لينك تليجرام https://t.me/mrahmedelbashagroup لينك تحميل الملزمة https://drive.google.com/file/d/1L0Iw... In This Part : System & Surroundings: Definition of the system, system boundary, and surroundings. Types of Systems: Detailed comparison with real-life examples: • Open System (exchange of matter and energy) • Closed System (exchange of energy only) • Isolated System (no exchange of matter or energy) Internal Energy: Understanding internal energy as the sum of potential and kinetic energies of particles across different states of matter (Solid, Liquid, Gas). Concept of Temperature: How temperature measures the average kinetic energy of system particles and the effect of heating. Factors Affecting Temperature Change: Mass of the substance Type of the substance & Specific Heat (definition, units, and comparison between substances like water and oil) State of the substance (e.g., ice vs. liquid water) Life Applications & Give Reason (G.R.) Questions: Why water is used as an excellent cooling liquid in car radiators and other key exam questions. بالتوفيق مستر احمد الباشا