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World 5 · Advanced Compound Machines · 8 min · PRO

Lever into a Block and Tackle

A pumped handle drives two supporting ropes

PRO · Simple Machines

World 5: Advanced Compound Machines is part of PRO

The first world of Simple Machines is free. PRO opens the other 32 lessons in 6 worlds — simulations, quizzes and all.

  • Gear Train into a Screw Jack
  • Winch into a Ramp Hoist
  • Zero-force members
  • A stable truss with the fewest bars
  • Pratt, Howe or Warren?
PRO includes
  • All 26 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

Unlock Simple MachinesTry the free world
← Gear Train into a Screw JackWinch into a Ramp Hoist →

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