J to Space Sht_3
1. A passenger at an airport pulls a suitcase towards the check-in desk.
The suitcase has been designed to reduce the effects of friction when it
is pulled.
(i) Explain how the suitcase might have been designed to reduce friction.
(ii) Why is it important to reduce the force of friction on the suitcase?
2. Put the following in order of increasing size.
3. Read the following passage about comets.
(a) Use information given in the passage to answer the following questions.
(i) State the name of one object that orbits a planet.
(ii) State the name of one object that generates light.
(iii) State the name of the object furthest away from the Earth.
(iv) State the name of one object that orbits the Sun.
(b) State what is meant by the term galaxy.
(c) State what is meant by the term solar system.
