$1.$ An object is $10$ m in the ar and it has gravitational potential.Explain in detail what happens to the energy over time as the object begins to fall and as the object lands without bouncing.

$2.$ Two blocks are of identical composition, so they have the same coefficient of friction, density and other such quantities. One block is twice as heavy as the other $($because it is twice as tall$).$ By referring to the specific forces responsible, explain why it takes twice as much work to move the heavier block one meter forwards than the lighter block. Be as detailed as possible.