1) Something in orbit around the Earth is called a:  

a) Comet
b) Satellite
c) Black hole
d) Red Dwarf
e) Galaxy

2) Satellites can be used to send information between places which are a long way apart on the Earth  

a) True
b) False

3) Satellites can be used to monitor conditions on Earth including the weather  

a) True
b) False

4) Satellites can be used to observe the Universe without the Earth's atmosphere getting in the way  

a) True
b) False

5) The orbits of the planets are slightly squashed circles called _______ with the Sun quite close to the centre.  

a) ellipses
b) moons
c) concentrics
d) ovals
e) ovums  

6) The Earth the Sun the Moon and all other bodies attract each other with a force called:  

a) mass
b) weight
c) gravity
d) centripetal
e) centrifugal  

7) The greater the distance between the bodies in space the ________ the force of gravity between them  

a) dimmer
b) brighter
c) larger
d) smaller
e) more massive  

8) A smaller body will stay in orbit around a larger one because of:  

a) the combination of its high speed and the force of gravity between the bodies
b) the combination of its high speed and the separation between the bodies
c) the combination of its separation and the force of gravity between the bodies
d) its high speed
e) the force of gravity between the bodies  

9) H: Comets have orbits which are:  

a) decreasing
b) far from circular
c) increasing
d) circular  

10) Comets are:  

a) very much closer to the Sun at some times than at others. This is when they are invisible
b) always the same distance from the sun
c) very much further to the Sun at some times than at others. This is when they can be seen
d) very much closer to the Sun at some times than at others. This is when they can be seen  

11) To stay in orbit at a particular distance smaller bodies including planets and satellites must move:  

a) at a particular speed around larger bodies
b) at a slow speed around larger bodies
c) at high speed around larger bodies
d) too fast to be seen

12) The further away an orbiting body is the longer it takes to make a complete orbit  

a) True
b) False

13) Communications satellites are usually put into an orbit high above the equator so that they move around the Earth at exactly the same rate as the Earth spins  

a) True
b) False

14) Communications satellites are always in different positions when viewed from Earth  

a) True – need to move to circle the Earth
b) False – always in the same position above the Earth’s surface  

15) A communications satellite's orbit is called a:  

a) galactic orbit
b) solar orbit
c) lunar orbit
d) geostationary orbit
e) black hole  

16) Monitoring satellites are usually put into a low polar orbit:  

a) so that the Earth spins beneath them and they can scan the whole Earth
b) so that the Earth is in fixed positions to allow communications
c) so that the satellite avoids the lunar shadow
d) so that the satellite avoids the solar shadow