Gears

• What is a gear in mechanics?

  A rotating machine part with teeth
• What is the purpose of a drive gear?

  To provide input force to another gear
• What is a driven gear?

  A gear that receives force from another gear
• What is a spur gear?

  A gear with straight teeth parallel to the axis
• What is the function of an idler gear?

  To transmit motion without changing speed
• What is a bevel gear?

  A gear that transmits motion at an angle
• What does gear ratio represent?

  The ratio of the number of teeth on gears
• What is a worm and wheel gear?

  A gear system with a screw-like worm and a wheel
• What is a rack and pinion gear?

  A gear system that converts rotational motion to linear motion
• What is a pinion gear?

  A small gear that engages with a larger gear
• What are the three components of a lever?

  • Effort
  • Fulcrum
  • Load