Question

Define the following terms:-
a) Orbit
b) Meteoroids
c) Celestial Bodies
d) Satellite
e) Comets

Answer 1

1. orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet. Normally, orbit refers to a regularly repeating trajectory, although it may also refer to a non-repeating trajectory.

2. A meteoroid is a small rocky or metallic body in outer space. Meteoroids are significantly smaller than asteroids, and range in size from small grains to one-meter-wide objects. Objects smaller than this are classified as micrometeoroids or space dust.

3. celestial body is any natural body outside of the Earth's atmosphere. Easy examples are the Moon, Sun, and the other planets of our solar system. But those are very limited examples. The Kuiper belt contains many celestial bodies. Any asteroid in space is a celestial body.

4. satellite is an object that has been intentionally placed into orbit. These objects are called artificial satellites to distinguish them from natural satellites such as Earth's Moon.

5. Comets are cosmic snowballs of frozen gases, rock and dust that orbit the Sun. When frozen, they are the size of a small town. When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets.

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Answer 2

Answer:

1. a curved path taken by a planet or another object as it moves around another planet, star, moon, etc.
2. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
3. By definition a celestial body is any natural body outside of the Earth's atmosphere.
4. A satellite is a moon, planet or machine that orbits a planet or star.
5. Comets are basically dusty snowballs which orbit the Sun.