accelerator, brake, clutch, gas (esp. AmE)
foot
To stop the machine push the foot pedal.

bicycle, bike (informal)
organ, piano
wah-wah
Some guitarists tend to overuse the wah-wah pedal.

depress, press, push, put your foot on, step on, use, work
Her foot was working the pedal of the sewing machine.

floor (AmE), slam on, stamp on
He floored the pedal and drove off at high speed.

release, take your foot off

control sth, operate sth

boat, car, cycle (BrE)
bin (BrE)

on a/the pedal
with one foot on the pedal

fast, frantically, furiously, hard
You have to pedal hard to get anywhere.

away

along, down, up
He refused to pedal up the hill.

Pedal is used with these nouns as the object:
bicycle, bike