A toothbrush is not a simple machine, it does not work on the principle of levers, effort, and load.
It's not a machine at all in mathematical terms. A "machine" is that which performs "work", i.e. transfers or converts energy.
You arm moving the toothbrush is a machine by this definition, however.
i think it is a lever
A train is not a simple machine.
eh
A compound machine.
A wedge
A compound machine.
A pulley isn't a kind of simple machine, it is a simple machine
A train is not a simple machine.
IT's NOT A SIMPLE MACHINE!
its not a simple machine
It is a simple lever.
Rope is not a simple machine on its own, it's a simple machine on a wheel and axle, then it's a pulley.
What kind of simple machine is a garage door
a compound machine is a combination of simple machines
lever
lever
It's a simple machine.
A lever