Where and when were rockets first developed?

China in the 1100s

Later rockets were used in wars to deliver this...

Explosives

rocket

A device that expels gas in one direction to move in the opposite direction.

thrust

The reaction force that propels a rocket forward.

velocity

Speed in a given direction

orbital velocity

The velocity a rocket must achieve to establish an orbit around a body in space

escape velocity

The velocity an object must reach to fly beyond a planet's or moon's gravitational pull

Describe how a multistage rocket works

Each stage of the rocket has fuel, as it burns, it separates and falls to earth. It lightens the rocket and it can go further.

What is the main advantage of a multistage rocket?

Total weight of the rocket is greatly reduced as the rocket rises.

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