Flow; it's just a valve.
A faucet handle cannot be a pulley because it is a screw and a lever.
A lever in a bathroom can flush your toilet or open a faucet.
A faucet handle cannot be a pulley because it is a screw and a lever.
a lever
The simple machines in a faucet are: # A wheel and axle. # A lever (the handle). # Gears (probably inside the faucet). I'm pretty sure these simple machines are in a faucet, but I'm not sure if there are others. I've never looked into a faucet before...so, no experience. Thanks for reading my answer!
besides A LEVER WHAT other simple machine do you think a faucet handle could be
it is not a simple machine. A faucet is compound machine sometimes consisting of levers screws and a wheel of and axle
Lever
You can buy lever extenders at Home Depot or Bed, Bath & Beyond that would be great for childproofing your faucet.
On the single lever handle just unscrew it.
if it is a single lever faucet the cartridge needs to be replaced. check the supply valve under the sink first,
The selector lever.