Force, area and pressure
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Science KS3 Lesson 1: Force, area and pressure
Screen 1.1: A main tunnel drive site will be located in Battersea. These sites are where the Tunnel Boring Machine will be lowered down a large shaft to bore the Thames Tideway Tunnel. Click next to explore the site.
Screen 1.2: This is what a main tunnel drive site might look like. The large shaft is where the Tunnel Boring Machine (TBM) will be lowered to bore the Thames Tideway Tunnel. A large crane will lower the TBM in sections down the main shaft where it will be assembled.
Screen 3.1: Look at the different forces acting on the four areas. Which one of these boxes exerts the most pressure on the ground? Click on the right answer.
3.1b: Correct answer
Screen 3.2: Hover over the wheel to find out why cranes exert pressure on the ground.
3.2b: Correct answer
Screen 3.3: Hover over the stabilising pad to find out the impact that this larger surface area has on pressure.
3.3b: Correct answer
Screen 3.4: What about the impact of the load? What more information do you need? Hover over the rectangle for guidance.
3.4b: Answer