Science Focus 2 - Chapter Tests - Pearson Australia Media Resources

Science Focus 2 TEST
Chapter 8: Astronomy
8 Define three different types of galaxy.
Also sketch each type.
9 Complete these sentences about parts of
the Milky Way galaxy.
a An ________ cluster contains a
few hundred stars within the
spiral arm of the galaxy.
b A ________ cluster may be seen
with the naked eye as a fuzzy
star, but actually contains up to a
million stars.
10 Identify the types of waves detected by
a an optical telescope.
b a radio telescope.
11 Recall
a how high above the Earth’s
surface a satellite in geostationary
orbit is.
b what it means when a satellite is
in an asynchronous orbit.
c which kind of orbit observation
satellites are usually placed in.
d which kind of orbit
communication satellites are
usually placed in.
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This page from the Science Focus 2 Teacher’s Resource may be photocopied for classroom use.
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