**Newton's 1st Law of Motion:** An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

**Soccer example:** A soccer ball will not move until a player kicks it. The soccer player's foot is the unbalanced force because only his/her force will move the ball.

**Newton's 2nd Law of Motion:** The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

**Soccer Example:** If the ball’s mass is high, it will require more force to accelerate. If the ball’s mass is low, it will require little force.

**Newton's 3rd Law of Motion: **For every action, there is an equal and opposite reaction. In every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

**Soccer Example:** If you kick the soccer ball, it will kick back at you just as hard. The reason the ball moves is because your leg is exerting a higher amount of force opposed to the soccer ball.