Yes, jet is atype of aircraft engine. There are hundreds of types and makes of jets.
A jet is a type of engine that powers many aircraft and does not have anything to do with airplane size.
Any fixed-wing aircraft with an engine is an airplane. There are different kinds: piston-engine airplanes have piston engines driving propellers, (airplane engines are horizontally-opposed, like the engine in an old Volkswagen), turboprop airplanes have turbine engines with gearboxes that drive propellers, and jet airplanes have turbine engines that move the plane directly. So, factually, a jet is a type of engine on an airplane. However, over time, aircraft with jet engines have often been referred to as "jets."
Depends on what airplane the jet engine is mounted in.
it is a type of fuel
Airplane is a device powered either by a piston engine and prop or by a jet engine.
They propel the aircraft by propellers or jet thrust.
Jet propulsion improved airplane flights. Before that piston engines were used. They were much slower compared to the jet engine.
Well yes, assuming if an airplane does not have a jet engine, it would not be called a jet.
A ship is propelled by wind or a propeller, and an airplane is propelled by a jet engine, propeller or turboprop.
There are multiple claims for inventing the jet engine from 1910-1930, but the first jet airplane to fly was in 1939.
You're probably thinking of Rolls-Royce--one of the biggest jet engine manufacturers--but the first real jet engine was built by the Heinkel airplane company in 1935.
The thrust is given by the difference in the velocity of air coming into the jet engine and going out of the jet engine, Thrust = F= mdV/dt = ma.