pressure class 8

🌈 Pressure

🎯 Learning Objectives

• Understand the concept of pressure.
• Learn the formula P = F / A.
• Identify factors affecting pressure.
• Relate pressure to real-life situations.

🧩 Competencies

• Conceptual Understanding – Pressure and its formula
• Observation Skills – Real-life examples
• Analytical Thinking – Effect of area and force
• Application Skills – Daily life applications
• Communication Skills – Expressing concepts clearly

📊 Learning Outcomes

• Defines pressure as force per unit area.
• Applies formula P = F / A.
• Explains effect of area on pressure.
• Describes pressure in liquids and atmosphere.

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🎥 Evidence (Student Video)

Upload or embed student demonstration:

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📝 Worksheet (Who Am I - MCQ)

1. I am force acting per unit area.

Work Pressure Energy Power

2. I am the formula of pressure.

F = ma P = F / A V = IR P = VI

3. I am the SI unit of pressure.

Joule Pascal Watt Newton

4. I increase when area decreases.

Force Pressure Work Energy

5. I am pressure exerted by air.

Liquid pressure Atmospheric pressure Solid pressure Vacuum

6. I increase with depth in liquids.

Pressure Temperature Volume Mass

7. I represent force.

A F P V

8. I represent area.

F A P T

9. High heels exert more pressure because of me.

Large area Small area High mass Low force

10. I am equal pressure in all directions in liquids.

Pascal law Pressure law Force law Energy law

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🧠 Higher Order Thinking Questions

1. Why do camels have broad feet?

To reduce pressure by increasing area.

2. Why do sharp knives cut better?

Small area increases pressure.

3. Why do divers feel more pressure at depth?

Pressure increases with depth.

4. Why do we lie on a bed of nails safely?

Large area reduces pressure.

5. Why do trucks have wide tyres?

To reduce pressure on ground.