Give one example of a body that has potential energy due to its position at a height.

Give one example of a body that has potential energy due to its elongated, stretched state.

A body of mass $\mathrm{m}$ is moved from ground to a height $\mathrm{h}$. If force of gravity on mass of $1 \mathrm{kg}$ is $\mathrm{g}$ newton. Find the force needed to lift the body.

A body of mass $\mathrm{m}$ is moved from ground to a height $\mathrm{h}$. If force of gravity on mass of $1 \mathrm{kg} \mathrm{is} \mathrm{g}$ newton, find the work done in lifting the body.

A body of mass $m$ is moved from ground to a height $h$. If force of gravity on mass of $1 \mathrm{kg}$ is $g$ newton, find the potential energy stored in the body.