Satellite

Satellite

by ROSLINDA Moe

Multiple Choice

Which is natural satellite for earth?

Multiple Select

Choose the correct type of satellite orbit.

• GOS

• GEO

• NEO

• LEO

Fill in the Blanks

Multiple Select

Low Earth Orbit (LEO) and Geosynchronous Orbit (GSO) are examples of ...... orbit.

• Perfectly circular

• Elliptical

Multiple Choice

-Satellites with duration of complete rotation orbitting the Earth from this orbit is less than 24 hours.

It appear moving to and fro from north and south when observed from earth.

What is the type of satellite orbit?

• Low Earth Orbit (LEO)

• Medium Earth Orbit (MEO)

• Geosynchronous Orbit (GSO)

• Geostationary orbit (GEO)

Multiple Choice

Satellite V₁ shows ........ position in orbit.

• Apogee

• Perigee

Multiple Choice

The higher the orbital height of a satellite, the _____ the satellite speed for it to remain in orbit

• higher

• lower

Multiple Choice

Choose the reason satellite exit the earth's orbit and drift away from earth.

• The speed of the satellite reduces too much.

• The speed of the satellite increases too much.

Multiple Choice

Choose the correct type of launch and placement of satellite into orbit shown in the picture.

• Directly into orbit

• Hohmann transfer orbit

Multiple Choice

Satellites are launched by satellite launch vehicle into orbit circulating the Earth.

Choose the the correct launch vehicle shown in the picture.

• Expendable launch vehicle (ELV)

• Reusable launch vehicle (RLV)

Multiple Choice

The components of expendable launch vehicle (ELV) cannot be reuse whereas Reusable launch vehicle (RLV) can be used to launch satellites for more than once.

• TRUE

• FALSE

Multiple Select

The picture is showing a photo of formation of hurricane captured from the International Space Station (ISS).

Choose the other function of ISS.

• Conducting experiments in zero gravity.

• Landing space for space shuttle

• Home for astronauts in the space

Multiple Choice

Microgravity is a weightlessness state of a living thing or object.

• TRUE

• FALSE

Multiple Choice

Astronauts appear to be weightless in space because astronauts are in the state of ......

• free fall

• microgravity

• zero gravity

​FREE FALL

​Free fall is defined as “any motion of a body where gravity is the only force acting upon it.” In the vacuum of space, where there are no air molecules or supportive surfaces, astronauts are only acted upon by gravity. Thus, they are falling towards Earth at the acceleration of gravity.

Fill in the Blanks

Multiple Choice

International Space Station (ISS) travels in the .............. approximately 409 km from Earth.

• Low Earth Orbit

• Medium Earth Orbit

• High Earth Orbit

Fill in the Blanks

Multiple Choice

Global Positioning System (GPS) is a navigation system which gives information on

location and time to its users in all weather conditions.

How many segments of GPS?

• 1

• 2

• 3

Multiple Choice

-GPS is made up of a satellite network.

-GPS satellites orbit Earth at an orbital height of

20 000 km.

-The orbit of a GPS satellite is usually known as a semi-synchronous Earth orbit with an orbital period of about 12 hours.

Which segment of GPS is described in the above information?

• Control segment

• Space segment

• User segment

Multiple Choice

3°08'22.04"N (Latitude) 101°41'22.53"E (Longitude)

Which format of GPS coordinate is shown above?

• Decimal degree (DD)

• Degrees, minute and seconds (DMS)

Multiple Choice

One satellite is not able to give enough information i.e. location to the user.

• TRUE

• FALSE

​Global Positioning system (GPS)

​-Six orbits of GPS satellite.

​

​-The number of GPS satellite orbiting the Earth for now is 32.

​

​- GPS satellites uses Medium Earth Orbit and in the duration of 12 hours.

​TRILATERATION

​​-To increase accuracy to calculate location, velocity and height, trilateration of satellite is important.

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