Скачать или смотреть Class 10 Physics | Unit 11 Thermal Transformations | Short Questions with Explanations (NBF Book)

🔥 Welcome to today’s Class 10 Physics lecture! In this video, we cover all 11 important short questions from Unit 11: Thermal Transformations from the National Book Foundation (NBF) new syllabus (2025 Edition).

📘 These short questions are explained with conceptual clarity, real-life examples, and illustrative visuals — perfect for Federal Board and Punjab Board students preparing for exams!
🧠 Covered Questions:

1️⃣ Why do dew-drops form on leaves and grass in a spring morning?
2️⃣ Effect of pressure and temperature on sublimation and deposition
3️⃣ Why vapours form on a fire extinguisher’s handle during discharge
4️⃣ How sweating helps cool the body during exercise
5️⃣ (i) Temperature-time graph for heating a metal with constant rate
(ii) How latent heat affects the melting time of different metals
6️⃣ Change in tyre pressure during a long hot drive
7️⃣ How thermal expansion causes sidewalk cracks
8️⃣ Melting snow with hot water vs. heat lamp
9️⃣ How evaporation from leaves helps nutrient transport in plants
🔟 Why ice cools drinks faster than cold water
1️⃣1️⃣ Challenges in maintaining low temperatures for superconductivity
🎯 What You’ll Learn:

✅ Thermal conduction, evaporation, sublimation, latent heat
✅ Real-life applications of thermal physics
✅ Graph interpretation for heating curves
✅ How to answer board-style short questions effectively
📌 Perfect For:

Class 10 students (Federal Board, Punjab Board)

Matric exam preparation 2025

Quick concept revision before exams

Conceptual understanding with visuals
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