Annual Examinations For Secondary Schools 2015 (Physics) Worksheets - Department For Curriculum Management Page 10
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127. The diagram shows our solar system.
a) Complete:
Our solar system can be found in one of the billions of galaxies that exist in our Universe.
The name of our galaxy is ___________________________________. The planets in our
solar system ___________________ around the Sun. There are ________________ planets
in our solar system.
[3]
b) Give ONE difference between a planet and a star.
________________________________________________________________________[2]
c) What force keeps the planets orbiting the Sun?
________________________________________________________________________[2]
d) The table below shows data about some of the planets making up the solar system.
Mass ( 10
Planet
24
kg)
Time to spin once on its own axis
Time to complete one orbit
(hours)
around the Sun (days)
Venus
4.87
5832
225
Earth
5.97
24
365
Saturn
568
11
10747
Uranus
86.8
17
30589
Neptune
102
16
59800
i) Which one of the above planets has the shortest year cycle?
________________________________________________________________________[2]
ii) What information from the table above shows the length of a day on each planet?
So, state which of the planets has the longest day.
________________________________________________________________________[2]
iii) From the above table, which planet has the largest gravitational force?
________________________________________________________________________[2]
Page 10 of 12
Physics – Form 3 Secondary – Track 2 – 2015
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