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WorksheetsLET'S TRY (CHAPTER 1) SATELLITE
Total questions: 9
Worksheet time: 6mins
Name
Class
Date
1.
A communication satellites act as.................
a)
microwave converter in space
b)
microwave repeater station in space
c)
communication signal generator in space
d)
telephone switch or a dedicated link to the earth station.
2.
For _______orbit, the distance from the Earth remains the same at all times.
a)
elliptical
b)
geocentre
c)
circular
d)
equatorial
3.
It has orbit altitude 5000-10000km above earth surface. This statement refer to______.
a)
low earth orbit (LEO)
b)
highly elliptical orbit (HEO)
c)
medium earth orbit (MEO)
d)
geostationary earth orbit (GEO)
4.
....is the point where it is close to the Earth. This is where satellite moves at its fastest.
a)
apogee
b)
perigee
c)
focal point
d)
geo centre
5.
........inclination equal to 90, the satelliteorbits from the north pole to the south pole.
a)
posigrade
b)
polar
c)
retrograde
d)
equatorial
6.
below are the advantages of GEO (geostationary earth orbit) EXCEPT.
a)
can cover almost the entire world with 3 satellites
b)
low delay time
c)
can continuously monitor one point on earth surface
d)
Good for broadcasting
7.
........ is defined as the horizontal pointing angle of an antenna (0° – 360°).
a)
Azimuth
b)
Zenith
c)
Elevation
d)
Altitute
8.
The area of the earth covered by a satellite depends on, EXCEPT:
a)
The location of the satellite in its geosynchronous orbit
b)
Its carrier frequency
c)
The direction of rotation around the earth
d)
The gain of its antennas
9.
______is the point where the satellite is furthest from the Earth. This is where the satellite moves at its slowest as the gravitational pull from the earth is lower.
a)
apogee
b)
perigee
c)
geocentre
d)
posigrade
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