Question

what are the quantities on which the amount of workdone depend?how are they related to work?

Answer 1

work done by an object is the dot product of force applied on the object and displacement of object due to force .
mathematically,
$\bf{W=\vec{F}.\vec{S}}$
or, $\bf{W=F.Scos\theta}$
where F denotes force applied on the object, S denotes displacement of object and $\theta$ is angle between force and object.

so, workdone depends force, displacement and angle between force and displacement.

e.g., workdone is directly proportional to
1. force applied
2. displacement
3. angle between force and displacement.