1. The Physical characteristics of the sun are:
1. Mass: 1.98892 x 1030 kg.
2. Diameter: 1,391,000 kilometers.
3. Radius: 695,500 km.
4. Surface gravity of the Sun: 27.94 g.
5. Volume of the Sun: 1.412 x 1018 km3
6. Density of the Sun: 1.622 x 105 kg/m3
2. The sun release energy by nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom. During the fusion process, radiant energy is released.
3. Yes the sun makes noise.
The surface of the Sun produces sound waves because the surface is convecting and this produces pressure waves that travel into the inner corona.
