Question
Fig. 11.1 represents the Sun and part of the Solar System.
(a) Complete the labels on Fig. 11.1 by writing on the dotted lines. [3]
(b) Complete the sentences about the Sun.
The Sun consists mostly of the elements ………………………………………………………………. and
………………………………………………………………. .
Most of the Sun’s energy is radiated in the infrared, ………………………………………………………..
and ………………………………………………………………. regions of the electromagnetic spectrum. [4]
(c) Give an estimate for the diameter of the Milky Way galaxy.
diameter = ………………………………… light-years [1] [Total: 8]
▶️Answer/Explanation
Ans:
11(b) Hydrogen and
Helium (answers maybe in either order)
visible (light) and
Ultraviolet (answers maybe in either order)
11(c) 100 000 (light-years)