Question

In a nuclear reactor, neutrons are produced when an atom splits in a process called fission. These neutrons are moving at about 10^7m/s and must be slowed down to about 1000 m/s before they take part in another fission event. they are slowed down by passing them through a solid or liquid material called a moderator. the slowing-down process involves elastic collision. show that a neutron can lose most of its kinetic energy if it collides elastically with a moderator containing light nuclei, such as deuterium(in "heavy water", D2O).

Answer 1

Basically what is Elastic collison @adnanSultan ??

Answer 2

And tell which of the following will be conserved
1)linear momentum
2)Kinetic Energy
3)Both

Answer 3

in elastic collision both are conserved

Answer 4

the type of collision in which energy and momentum are conserved is called elastic collision.