Physics Carnival

…………. is an artificial body that is projected from earth to orbit either earth (or) another body of solar systems.

• Satellite

• Moon

• Sun

• None of the above

Uses of satellites

• Landing on and exploring other planets

• Changing the weather conditions in a given area

• Getting rid of dust that blocks the view of Earth

• Helping GPS receives figure out locations

A geostationary orbit

• takes 24hours to complete

• It's always above one point

• It's used for TV satellites

• all the options

The distance of Geostationary Earth Orbit away from Earth is

• between 2000~35786km

• 35786km

• 2000km

• above 35786km

Which of the following is true about geostationary satellite?

• Move in the same direction of earth's rotation axis

• Period of rotation is 24 hours

• Orbit always above the same geographical location

• Doesn't experience any gravitational pull

Communication satellite is a type of non-geostationary satellite

• yes

• no

What is the minimum number of geostationary satellites that will allow for worldwide communication?

• one

• two

• three

• four

A communication satellite uses to transmit signal.

• Antenna

• Transponder

• Oscillator

• None of the above

Which of the following are the applications of satellite communications?

• TV

• Radio

• Military

• All the above

What was the name of first satellite that was sent into space ?

• International space station

• GPS

• Sputnik-1

• Explorer