Physics Worksheet - Annual Examinations For Secondary Schools, 2013 Page 5

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5.
Joanne collects data from the Internet about planets in the solar system as shown below.
Name of Planet
Distance from
Time taken for
Time taken to
Average
o
sun in millions
one orbit of the
spin on its axis
temperature
C
of kilometres
sun in years
in hours
Mercury
60
0.24
1400
430
Venus
110
0.60
5800
470
Earth
150
1
24
20
Mars
230
2
25
- 20
Jupiter
780
12
10
-150
Saturn
1400
30
10
-180
Uranus
2900
84
17
-220
Neptune
4500
165
16
-230
(a)
Name the force which keeps planets in their orbits. ___________________________
(1)
(b)
What is the name of the galaxy which contains our Solar System?
___________________________________________________________________________
(1)
(c)
Pluto is missing from the above table. Explain why.
___________________________________________________________________________
(1)
(d)
Which two planets have the same length of day?
___________________________________________________________________________
(1)
(e)
Which planet has the longest year?
_____________________________
(1)
(f)
Explain why is the temperature on Neptune is very cold.
___________________________________________________________________________
(1)
(g)
What form of energy would be very useful to use in space? Name one advantage of
using this source.
___________________________________________________________________________
___________________________________________________________________________
(2)
Physics – Secondary Schools – Track 3 – Form 3 – 2013
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