How is fusion made?
Fusion is the process that powers the sun and the stars. … To make fusion happen, the atoms of hydrogen must be heated to very high temperatures (100 million degrees) so they are ionized (forming a plasma) and have sufficient energy to fuse, and then be held together i.e. confined, long enough for fusion to occur.
How does fusion and fission produce energy?
Fission is the splitting of heavy nuclei (such as uranium) – in two smaller nuclei. … Fusion on the other hand, is the process of sticking together light nuclei (typically hydrogen -like nuclei). The larger nuclei again needs less energy to hold it together – so energy is released.
Where does the energy generated by fusion come from?
The fusion of light elements releases energy due to the interplay of two opposing forces: the “strong” nuclear force, which holds protons and neutrons together in the nucleus, and the Coulomb force, which causes positively charged protons to repel each other.
How does fusion start in a star?
A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion. … And once the fusion reactions begin, they exert an outward pressure. As long as the inward force of gravity and the outward force generated by the fusion reactions are equal, the star remains stable.
How is energy released in fission?
Fission occurs when a neutron slams into a larger atom, forcing it to excite and spilt into two smaller atoms—also known as fission products. Additional neutrons are also released that can initiate a chain reaction. When each atom splits, a tremendous amount of energy is released.
What energy is released during fusion?
The fusion of lighter elements in stars releases energy and the mass that always accompanies it. For example, in the fusion of two hydrogen nuclei to form helium, 0.645% of the mass is carried away in the form of kinetic energy of an alpha particle or other forms of energy, such as electromagnetic radiation.