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🔬 Science - Class 8
Unit 6 · Force and Motion

Pressure Presentation

ScienceSubject
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Science and Technology, Class 8

Pressure

Force on unit area · P = F/A · Unit: pascal

Same Force, Different Area

📍Pointed end
Touches only a tiny patch of skin
The whole force crowds onto it
High pressure, so it hurts
VS
⬜Blunt end
Touches a wide patch of skin
The same force spreads out
Low pressure, so it hardly hurts

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Presenter notes: Today's lesson is pressure. Ask the class why a needle pierces the skin so easily while a fingertip pushed with the same force does not. Start the lesson from that question.