Question

In a jet engine, _________________ is sucked into the front of a compressor, where _____________ is injected into the high pressure air, is ignited, and is pushed out the___________________ of the compressor, moving the plane _____________________.

Answer 1

The answers are; air, fuel, back, forward

The jet engine utilizes the principle that for every action force there is an equal reaction force in the opposite direction. When the exhaust from the combustion in the engine is ejected with great force backwards, the reaction force pushes the plane forward with an equivalent force.