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A geostationary satellite stays at the same point of the earth at all times. Meaning it is 'falling' at the same speed as the earth. Geostationary satellites have a period of 24 hours and orbit at an altitude of 36 000km.
- Satellites Flashcards
A satellites ability to maintain its orbit comes down to a...
- Satellites Flashcards
A satellites ability to maintain its orbit comes down to a balance between two factors: its velocity (or the speed at which it would travel in a straight line), and the gravitational pull between the satellite and the planet it orbits.
Study with Quizlet and memorise flashcards containing terms like What is a satellite?, What type of satellite is a moon?, What orbit does the moon and the Earth follow?
- A Satellite Is A Projectile
- Velocity, Acceleration and Force Vectors
- Elliptical Orbits of Satellites
The fundamental principle to be understood concerning satellites is that a satellite is a projectile. That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity. Newton was the first to theorize that a projectile launched with su...
The motion of an orbiting satellite can be described by the same motion characteristics as any object in circular motion. The velocity of the satellite would be directed tangent to the circle at every point along its path. The acceleration of the satellite would be directed towards the center of the circle - towards the central body that it is orbi...
Occasionally satellites will orbit in paths that can be described as ellipses. In such cases, the central body is located at one of the foci of the ellipse. Similar motion characteristics apply for satellites moving in elliptical paths. The velocity of the satellite is directed tangent to the ellipse. The acceleration of the satellite is directed t...
Feb 12, 2014 · A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite because it orbits the sun. Likewise, the moon is a satellite because it orbits Earth. Usually, the word “satellite” refers to a machine that is launched into space and moves around Earth or another body in space.
Scientists use satellites to study space because they can fly above the clouds. Some satellites use energy from the sun to stay powered while orbiting Earth. Earth and the moon are examples of natural satellites that orbit larger bodies. Satellites are used in many ways to help people communicate with each other and gather information.
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Most Earth-orbiting satellites are orbiting at a distance high above the Earth such that their motion is unaffected by forces of air resistance. Indeed, a satellite is a projectile. Second, a satellite is acted upon by the force of gravity and this force does accelerate it towards the Earth. In the absence of gravity a satellite would move in a ...
