Here's why:

* Newton's Second Law of Motion: This fundamental law of physics states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In simpler terms:

* More force = More acceleration

* More mass = Less acceleration

* Acceleration: Acceleration means a change in velocity. This could be a change in speed (faster or slower) or a change in direction.

Examples:

* Pushing a box: When you push a box, you apply a force. This force causes the box to accelerate (move faster) across the floor.

* Throwing a ball: When you throw a ball, you apply a force to it. This force causes the ball to accelerate (change direction and speed) through the air.

Important Note: Force does not necessarily cause an object to move. If an object is already in motion and a force acts on it in the same direction, it will continue moving faster. If the force acts in the opposite direction, the object will slow down. If the force acts at a right angle to the motion, the object will change direction.