How are rockets powered?

Answer 1

A rocket is propelled into the air by the exhaust from burning fuel. As the exhaust leaves the back of the rocket, the rocket experiences an equal and opposite reaction, being pushed forward (upward). There does not have to be anything for the gases to push against, so rocket engines (with their own oxygen supply) can work in outer space as well as on Earth.
The only way for a rocket to reach an orbit around the Earth is by achieving a very high speed (escape velocity), so that its momentum carries it around the planet instead of falling back as missiles do.

Answer 2

Rockets are typically powered by either liquid propellants (like liquid oxygen and liquid hydrogen) or solid propellants (like a mixture of fuel and oxidizer). When these propellants are ignited, they undergo a chemical reaction that produces high-pressure gases, which are expelled through a nozzle at the back of the rocket, creating thrust that propels the rocket forward.

Answer 3

The most advanced rockets work like their larger counterparts: solid fuel is burned inside a tube, and the exhaust gases rush out (down), pushing the rocket in the opposite direction (up).

Other rockets use pressurized water or carbon dioxide as propellants, again being released in the downward direction so that the opposite force is applied to lift the rocket.

Answer 4

Rockets propel themselves by expelling something opposite to the desired direction of travel. Expanding gas is the most common way to achieve this, but recently charged ions have been growing in popularity as a low thrust, high efficiency means of propulsion once in space.

Answer 5

a rocket goes into space really fast because gravity will pull it down otherwise so it has to get rid of the gravitational pull by travelling really fast. If the question is about propulsion, then Newton's third law comes into effect. By "throwing" gases out the back really fast, the rocket is pushed in the other direction. The more gas we throw and the faster we throw it, the faster we go.

Answer 6

This is quite a complicated subject.

You can try the Wikipedia page called "Rocket propellant". That's about the different types of rocket fuels.

There may be too much detail, but it gives a good idea of what is involved.

Answer 7

Rocket's work accordiing to Newton's third law That law is:A force is a push or a pull upon an object which results from its interaction with another object.

Answer 8

A solid or liquid propellant is typically oxidized, or burned inside a nozzle. The expansion of the fuel into the gaseous state provides thrust against the nozzle surface.

Answer 9

Rockets are powered by oxydation of liquid hydrogen fuel.

Answer 10

action - reaction principle.