Moments, levers and gears

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Question 32
Easy

Figure 1 shows a rack and pinion system used to operate a heavy sliding gate.

Diagram of a rack and pinion system. A circular gear (pinion) with 16 teeth meshes with a flat, horizontal gear bar (rack) attached to the bottom of a sliding gate. The spacing from one tooth to the next on the rack is marked as 3.5 cm. Arrows indicate the circular rotation of the pinion and the linear motion of the rack.

The pinion gear has 16 teeth. The teeth on the rack are spaced 3.5 cm apart.

Calculate how far the sliding gate moves when the pinion rotates through one complete revolution. Give your answer in centimetres (cm).

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Moments, levers and gears Questions

  1. GCSE
  2. /Physics
  3. /Moments, levers and gears