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Regardless of what people have been taught, rockets need an atmosphere to work (no matter how weak that atmosphere is). The expanding force of the burnt propellant is what a rocket uses to thrust itself forward. The rocket is able to produce so much pressure for thrusting because of the presence of the external atmosphere the propellant has to push through, not against. (A rocket's fuel needs not push against anything).
If there were no atmosphere and a very strong vacuum, the propellant would flow and expand too freely to the outside of the craft too fast, and leave the chamber without enough pressure to create thrust. (Positive flows towards negative, yet it always chooses the path of least resistance to do so).
Already in earth's atmosphere, the majority of the propellant is not used for thrust but wasted through the atmosphere. If there were no atmosphere and a stronger vacuum even more would be wasted.
The plume caused by a rocket's exhaust becomes more and more invisible as altitude increases. The above explanation is the reason for this situation.
That's why shuttles/crafts only reach a certain altitude then orbit the planet.
Thermal thrusting would become inefficient beyond a certain degree of altitude.
What else can I help you with?
Why does a rocket carry its own oxygen?
A rocket carries its own oxygen because it needs oxygen to enable combustion of fuel for propulsion in the vacuum of space where there is no atmospheric oxygen. This allows the rocket to generate thrust and propel itself forward.
What did the first rocket have to over come to get in to space?
The first rocket had to overcome Earth's gravity to reach space. It needed to generate enough thrust to propel itself upward and break free from the pull of gravity, allowing it to reach the necessary speed to enter into Earth's orbit.
How are space shuttles powered once out of earth's atmosphere?
Space shuttles are powered using rocket engines that burn liquid fuel (such as liquid hydrogen and liquid oxygen) or solid rocket boosters. Once out of Earth's atmosphere, the space shuttle relies on these engines to propel itself through space and maneuver in a zero-gravity environment.
Is a rocket an invention?
Yes, a rocket is a human-made invention that uses propulsion to propel itself through space by expelling mass in the opposite direction. It was developed to travel outside Earth's atmosphere for various purposes, including exploration, communication, and satellite deployment.
What is inside a rocket?
Inside a rocket, you will typically find a payload, which is the object the rocket is carrying into space. This could be a satellite, a spacecraft, or scientific instruments. Additionally, there will be a propulsion system, such as engines and fuel tanks, that provide the thrust needed to propel the rocket into space.
What is pojectile in physics?
A projectile is any moving object which does not propel itself. For example a rocket burns fuel to propel itself through the sky whilst a shell fired from a cannon has no way to propel itself.
Why does a rocket carry its own oxygen?
A rocket carries its own oxygen because it needs oxygen to enable combustion of fuel for propulsion in the vacuum of space where there is no atmospheric oxygen. This allows the rocket to generate thrust and propel itself forward.
What did the first rocket have to over come to get in to space?
The first rocket had to overcome Earth's gravity to reach space. It needed to generate enough thrust to propel itself upward and break free from the pull of gravity, allowing it to reach the necessary speed to enter into Earth's orbit.
What did they use to propel the early space shuttles into space?
Same: solid rocket boosters and liquid hydrogen/oxygen main engines.
Applications of rocket engine?
Mostly to propel rockets, those going into space, and those carrying explosives.
How are space shuttles powered once out of earth's atmosphere?
Space shuttles are powered using rocket engines that burn liquid fuel (such as liquid hydrogen and liquid oxygen) or solid rocket boosters. Once out of Earth's atmosphere, the space shuttle relies on these engines to propel itself through space and maneuver in a zero-gravity environment.
How did Apollo 9 reach its required speed?
the rocket it was attached had enough thrust to propel the combined weights of the spacecraft and the rocket itself to over 17,500 mph.
What is used to lift from a planet on a journey into space called?
A spacecraft or rocket is used to lift off from a planet on a journey into space. The rocket engines provide the necessary thrust to overcome Earth's gravity and propel the spacecraft into space.
What is a engine used on a spaceship?
There are actually two types of boosters that were both used by the space shuttle before their decommission. To propel the vehicle out into space from the surface of the earth out past the atmosphere, the shuttle used SRB's, or Solid Rocket Boosters. The engines on the actual shuttle are LRB's, or Liquid Rocket Boosters. These are used to propel the space vehicle further into space and into orbit around the earth.
What energy does kinetic energy change to as a rocket launches?
As a rocket launches, kinetic energy is converted into potential energy due to the rocket's increase in height. The rocket's engines also convert chemical energy into kinetic energy to propel the rocket into space.
Is a rocket an invention?
Yes, a rocket is a human-made invention that uses propulsion to propel itself through space by expelling mass in the opposite direction. It was developed to travel outside Earth's atmosphere for various purposes, including exploration, communication, and satellite deployment.
What job does the propulsion system in a rocket do?
The propulsion system in a rocket generates thrust to propel the rocket through the atmosphere and into space by expelling hot gases at high speeds in the opposite direction to create forward motion.
