There is no "Neutan's first law of motion". You are likely thinking of Newton's First Law of Motion, also known as the Law of Inertia. It states:

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.

This means that objects tend to resist changes in their motion.

Here are some key points to remember:

* Inertia: The tendency of an object to resist changes in its state of motion is called inertia.

* Unbalanced force: A force that causes a change in an object's motion is called an unbalanced force.

* Rest: An object at rest will remain at rest unless acted upon by a force.

* Motion: An object in motion will continue to move at a constant speed and direction unless acted upon by a force.

Let me know if you have any other questions about Newton's Laws of Motion!