Final answer:
A two-stroke gasoline powered engine is not a simple machine but a complex machine, as it combines multiple parts and principles. Options like a ramp, a wedge, and a pry bar are all classic examples of simple machines.
Step-by-step explanation:
Of the options provided, the one that is not considered in the truest form to be an example of a simple machine is A. A two-stroke gasoline powered engine. Simple machines are fundamental devices that change the direction or magnitude of a force, such as levers, ramps, wedges, and pry bars. The mentioned engine is a complex machine because it combines multiple parts and principles to operate.
For example, a ramp used to lift heavy objects (choice B) is an inclined plane, which is a classic simple machine. A wedge-shaped device used to split wood (choice C) is also a simple machine, being made of two inclined planes. Lastly, a pry bar (choice D) acts as a lever, one of the most fundamental types of simple machines.
Simple machines like ramps could have been employed in historical feats such as the construction of the Egyptian pyramids. A simple machine can multiply the force applied, albeit not the energy, with the ratio of output to input forces known as the mechanical advantage (MA). However, a two-stroke gasoline-powered engine involves internal combustion and the interaction of many moving parts, thus it is an example of a complex machine.