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Moments and pressure

WJEC 3420QS — matched to your course.

Turning effects, equilibrium, pressure in solids and fluids, and upthrust.

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Moments and pressure

Tailored to WJEC 3420QS.

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Subtopics and study areas

  • Calculate moments and apply the principle of moments to balanced systems.
  • Calculate moments and apply the principle of moments.
  • Calculate pressure using force and area.
  • Explain how changing lever arm or contact area changes an effect.

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Verifying the Principle of Moments

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Subtopics and study areas

  • Use a balanced beam and known forces to compare total clockwise and anticlockwise moments.