Some examples of complex machines are cars, bicycles, can openers, a wheelbarrow, scissors and a stapler. A complex machine is also known as a compound machine, which consist of two or more simple machines, such as levers, wedges, pulleys, screws, wheel and axle and inclined planes.
While there are compound machines that may consist of only two simple machines, there are others that have a combination of many more, such as a car. Some examples of compound machines that consist of only two simple machines are the scissors and wheelbarrow. The wheel barrow is made up of a lever and wheel and axle, while the scissors are composed of wedges and levers.
A lawnmower is a more complex machine that consists of several simple machines, including a lever, wedge and wheel and axle. The mower's engine can also consist of many other simple machines.