Annual Examinations For Secondary Schools Physics Worksheet - 2012 Page 8

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9.
This question is about the Earth and the Universe
Complete the following by choosing one of the following terms.
gravity,
space,
Sun,
Moon,
planets,
Earth,
solar systems,
galaxies
a.
Complete the following:
i.
A natural mass in outer ___________________ is referred to as a celestial body.
ii.
The Universe is made up of a number of ___________________, which are made up of
a number of ___________________. A solar system is made up of a Sun and a number
of ___________________.
iii.
The force keeping the planets in orbit around the sun is the pull of _________________.
iv.
The star of our Solar System is the ___________________.
v.
The natural satellite of the Earth is the ___________________.
vi.
One year on Mercury is shorter than one year on ___________________.
(8)
b.
i.
How many planets orbit the sun in our solar system? _____
ii.
Which planet is closest to the Sun in our solar
system?
_______________
iii.
Name the celestial body in our solar system,
which recently has no longer been classified
as a planet.
_______________
iv.
This celestial body is now classified as a
_______________ planet.
v.
One __________________ is the distance that light travels in one year.
(5)
c.
State whether each of the following statements are True or False.
No.
Statement
True / False
The Earth spins on its own axis once every 12 hours.
i
ii
At any one time, part of the Earth faces the Sun and part of the
Earth is in darkness.
iii
The instrument used to observe the sky is called a telescope.
Saturn is one of the planets that orbits the Sun.
iv
The force of attraction between two planets increases as the
v
distance between the planets decreases.
vi
All parts of Earth have the same season at the same time of the year.
The Sun orbits the Earth.
vii
(7)
Physics – Secondary Schools - Track 2 – Form 5 – 2012
Page 8 of 12

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