شرح | Lesson 9 | Chapter 1 | Effect of water pressure on Aquatic organisms
Автор: Dr Eman Omran - د/ ايمان عمران
Загружено: 2025-12-08
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شرح | Lesson 9 | Chapter 1 | Effect of water pressure on Aquatic organisms
time stamp
0:00 Introduction, Exam Updates & Lesson Plan
2:59 Lesson Topic: Pressure Concept Introduction
3:11 Pressure in Daily Life (Pen, Finger & Pain Example)
4:59 Pressure Law (Force / Area) + Magic Triangle
6:37 Direct & Inverse Proportional Relationships
7:49 Important Notes (Force = Weight, Units Explained)
9:40 Mass vs Weight (Newton & Gravity Concept)
11:49 Area Units & Conversions (cm² ↔ m²)
12:56 Pressure Units (Pascal, N/m²) & Scientist Pascal
13:07 Fluids Definition (Liquids & Gases)
15:15 Compressibility of Liquids vs Gases
18:05 Liquid Pressure & Pressure Force
20:06 Atmospheric Pressure (ATM) Concept
22:10 Standard Atmospheric Pressure & Conversions
24:20 Total Pressure in Liquids (Atmospheric + Liquid)
27:15 Pressure Increase with Depth (10 m = 1 ATM)
29:16 Summary of Pressure Laws & Key Notes
30:15 Pressure at Same Horizontal Level (Same Pressure)
32:27 Density, Salt Content & Pressure Relation
36:13 Solved Numerical Problems on Pressure
40:58 Transition to Biology: Aquatic Organisms
43:32 Surface, Intermediate & Deep Sea Organisms
47:38 Adaptations of Deep-Sea Fish (Ray Fish Example)
49:51 Biological Explanation (Lipids & Unsaturated Fats)
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