# Newton's Laws of Motion

## Newton's 1st law of motion

It states that an object at rest will stay at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an unbalanced force. The ball was at rest until an unbalanced force was applied, and the ball was in motion until it was hit by an unbalanced force and was stopped. (Click picture to see full version.)

## Newton's 2nd Law of Motion

This law has to do with inertia. Newton's second law of motion states that the acceleration of an object increases with increased force and decreases with increased mass. Since the semi truck has increased mass, it is very hard to put in motion. It is resisting the force to make it go it motion. (click picture to see full version.)

## Newton's 3rd Law of Motion

Newton's third law states that for every action, there is an equal and opposite reaction. That means that for every action (like if I apply a force to an object), a reaction happens at the same time as that intentional action. That's why they come in pairs. After she throws the ball and it hits the wall, the ball will bounce off the wall. But at the same time the ball is bouncing off the wall, the wall is also pushing the ball away from it because it is the unbalanced force.

## -Inertia

It is a property of matter. It is any objects resist to motion.

## -Gravity

It is the force that pulls one object to another, and it is generally downward.