a simple machine is a mechanical device
definition of machine attachment
definition of a motor
stuff
A pulley.
a simple michine is like a: pulley, lever and an axle
A lever that turns
No, a clock compass is not considered a simple machine as it does not perform mechanical work by transmitting or modifying a force. It is an instrument used for telling time and determining direction, but it does not fit the definition of a simple machine.
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.
A battery is not a simple machine; it is an electrochemical device that converts chemical energy into electrical energy. Simple machines include levers, pulleys, inclined planes, wheels and axles, screws, and wedges. While a battery can be part of a larger mechanical system, it does not fit the definition of a simple machine.
An airplane is not a simple machine. A lever is a simple machine. A wheel is a simple machine. Any machine that can be described by a mathematical formula is a simple machine.
definition of machine attachment
A simple machine consisting of a rigid bar pivoted on a fixed point and used to transmit force.
a cap is a screw as it screws onto a bottle.
No, it is level to the ground, hence not an inclined plane. And mainly, it provides no mechanical advantage. To use Wikipedia's definition of a simple machine, a balance beam does not "chang[e] the direction or magnitude of a force" and is therefore not a simple machine.
A pulley isn't a kind of simple machine, it is a simple machine
simple machine
A simple machine consisting of a rigid bar pivoted on a fixed point and used to transmit force.