by Room 26
Simple machines make work easier. A pulley is a simple machine. It uses a rope and a wheel with a groove to lift things. Some example of a pulley include a flagpole, blinds, and wells. Another simple machine is a wheel and axle. This is a wheel that turns around a rod. We see wheel and axles everywhere. Bicycles, strollers, and skateboards are examples of simple machines. Simple machines help people do extraordinary things.