# 9th Physics Unit # 7 Properties of Matter

# Free Download 9th Physics Properties of Matter No 7 Notes

**Chapter 7: Properties of matter**

- Kinetic molecular model of matter; Density; Pressure; Atmospheric pressure
- Practical: Finding the density of a liquid using a syringe
- Pressure in liquids; Pascal’s law and its applications; Archimedes principle; Principle of floatation
- Practical: Finding the density of a body heavier than water by Archimedes principle
- Elasticity; Stress and strain; Hooke’s law; Young’s modulus
- Practical: Studying the relationship between load and extension using a helical spring
- Exercise Ch.7 & Numerical

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**9th class physics notes Urdu medium Chapter no 7 Click here**

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