The more mass an object has, the more force it takes to move it.

Here's why:

* Mass is a measure of how much matter an object contains.

* Force is a push or pull that can change an object's motion.

* Newton's Second Law of Motion states that the force needed to accelerate an object is directly proportional to its mass. This means that the more massive an object is, the more force you'll need to make it move or change its speed.

Let me know if you'd like more examples!