1. With a Little Help

2. Newton’s Third Law of Motion for every action there is an equal and opposite reaction jet airplanes and space rockets rely on this law to propel them through the air and outer space

3. Jet Engine air entering the jet engine is first compressed by a compressor, and then heated in a combustion chamber this heated air expands and is expelled through the rear of the engine as this hot air exits, it pushes the plane forward and turns the turbine that controls the compressor

4. Jet Engine

7. Space Shuttle space shuttle – a reusable plane that travels into space – it uses three rocket engines and two booster rockets to launch

8. Space Shuttle

9. a space shuttle burns fuel in a combustion chamber inside the rockets, exerting an equal force in all directions inside the walls of the rocket this force exits the rocket out a hole in the bottom of the rocket, creating a downward force and propelling the rocket upwards when the fuel from the two booster rockets is spent (after about 2 minutes), the booster rockets are shed from the shuttle

10. Space Shuttle the external tank is then also shed high up in the atmosphere where they disintegrate before falling back to earth once in the vacuum of outer space (where there is no air present), the space shuttle does not need force, only inertia, and so it turns off its main engines – remember that inertia is the tendency for an object to remain as it is until an external force is applied a space shuttle uses its engines in space only to change direction or to slow down

11. Space Shuttle

12. Notable Jet Engine/Space Firsts 1926: launch of first liquid filled rocket by Robert Goddard (USA) 1930: Frank Whittle (Great Britain) invented the jet engine 1939: first jet propelled airplane built by the Heinkel company (Germany) 1944: the A4 rocket becomes the first long-range rocket 1957: Sputnik 1 (Russia) orbits earth 1961: Yuri Gagarin (Russia) becomes first person to orbit earth 1969: Apollo 11 (USA) carried Neil Armstrong, Buzz Aldrin, and Michael Collins to the moon