Week 9 – Jss 1 Third Term Basic Science & Technology (BST) Lesson Notes

WEEK NINE
SATELLITE

• Meaning
  
• Uses
  

Meaning
Satellite is a body that orbits or moves round a planet e.g. the moon is a satellite of the earth.
Thus, the satellites or moons of the planet in our solar system are shown below
PLANET            NO OF SATELLITE
Mercury            None
Venus                None
Earth                1
Mass                2
Jupiter            12
Saturn             9
Uranus             5
Neptune             2
Pluto                None
NATURAL AND ARTIFICIAL SATELLITES
The moons that orbit the planets in solar system are natural satellite while artificial satellite are moon made bodies, which were launched by various countries, and now orbiting the earth e.g.
COUNTRY        YEAR OF FIRST LAUNCH        FIRST SATELLITE
USSR                1957                Sputnik 1
USA                1958                Explorer 1
Australia              1964                Blue streak
France             1965                Asterix
Japan                1970                Osumi
China                1970                Dong fang hang 1
United Kingdom        1971                Prospero X-3
India                1979                Rohini 1
Israel                 1988                Ofeg 1
Nigeria             2003                SAT 1
Types and Uses of satellite

1. Astronomical satellites: They are used for observation of distance plants, galaxies and other outer space objects
2. Bio satellites: These are used to carry living organism especially for scientific experimentation
3. Observation satellites: They are used for geographical studies, photographing of areas, map marking
4. Weather satellites: These are used to monitor the weather conditions in the atmosphere and supply the information to ground stations
5. Communication satellites: They are designed purposely to send information quickly from one place to another
6. Reconnaissance satellites: They are used for military or intelligence purposes, such as observing enemy location or troop movements
7. Space station satellites: They are designed for human being to live on in outer space. They are only designed for periods of weeks, months or years
8. Navigational satellites: These used radio time signals, it enable mobile receivers on the ground to determine their exact location

    CLASSWORK 9
   

9. What is a satellite?
10. Give the number of satellite for the following planets (i) Neptune (ii) Jupiter (iii) Uranus

    ASSIGNMENT 9
    SECTION A
    

    1. The heavenly body that moves round the planet is called (a) earth     (b) sun (c) satellite (d) stars
       
    2. Identify the planet with the least number of satellite in the following (a) earth     (b) Saturn    (c) Venus    (d) Jupiter
       
    3. The following are examples of planet except ______     (a) moon (b) earth     (c) mass (d) Jupiter
       
    4. Which of these satellites is for monitoring the dry and wet season of a particular area? (a) astronomical satellite    (b) weather satellite (c) bio satellites (d) communication satellite
       
    5. Which of the following is not a use of satellite? (a) communication (b) photograph (c) weather monitoring (d) driving
       

       SECTION B
       

    6. Highlight three uses of satellites
    7. Briefly explain the effect of artificial satellites in improving the world