The energy released during nuclear fusion in the core of a star, such as our Sun, is a result of mass being converted into energy. Which statement correctly describes this process?
Heavier nuclei split into lighter nuclei, and the total mass of the products is less than the initial mass.
Lighter nuclei fuse into heavier nuclei, and the total mass of the products is less than the initial mass.
Heavier nuclei split into lighter nuclei, and the total mass of the products is greater than the initial mass.
Lighter nuclei fuse into heavier nuclei, and the total mass of the products is greater than the initial mass.
104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.