Pedals are the foot-operated levers found on various machines, most commonly on bicycles. When you push down on the bicycle pedals, they turn the crankset, which helps move the bike forward. Pedals can also be found on musical instruments like the piano, where they control the sound and sustain of the notes. In addition to bicycles and pianos, pedals are used in vehicles like cars and motorcycles to control acceleration and braking. Each type of pedal serves a specific purpose, making it easier for users to operate the machine or instrument effectively.