Grade 12 – RSM28 – Gear Racer

Gear Racer

Project Description: 

Students will use a Lego gear racer (complete with two gear transmission) to investigate the effects of different gear ratios on acceleration and velocity.  This lesson is great for gaining insight into the relationship between tire size and torque.  They will also see where gears are used in their everyday lives and how a transmission in a car works.


In this lesson the core concepts focused on will be: 

  • Changing size of wheels to change torque
  • Gear ratios to optimize speed and change torque


Note: All lessons include a presentation and a hands on building period which they then use to perform various tests.



  • $300 / workshop for a class of up to 30 students
  • Price includes all materials, two qualified facilitators and all consumables required


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