Newton’s 2nd Law:
The greater the mass of the object, the more force is required to accelerate the object (ducksters).
What is mass? Mass is the amount of matter in an object or anything you can physically touch (coolkidfacts). Basically, it is going to take a great amount of force to move a large object, like say a sofa, and very little amount of force to move a feather. This also means the harder you hit something, the farther it will go. Goal, anyone?