<p align="right">Last Update: <font color="#4f81bd">December 18, 2024</font></p> ## BIG IDEAS - Law of inertia - Inertia is the tendency of objects to resist changes in their state of motion. - If the net external force on an object is zero, its [[velocity]] remains [[constant velocity|constant]]. - The law applies to [[Reference frame|inertial frames of reference]], - A special case of the Second Law where the net force is zero. >[!note] >An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an unbalanced external force. The First Law describes the natural state of motion or rest when no forces are involved, the Second Law explains how and why the state of motion changes when forces are applied. ### Slide Deck <div style="position: relative; width: 100%; height: 0; padding-top: 56.2500%; padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden; border-radius: 8px; will-change: transform;"> <iframe loading="lazy" style="position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;" src="https://www.canva.com/design/DAGZtK2lmTk/jaNxVgM204CWYp2-pExwdg/view?embed" allowfullscreen="allowfullscreen" allow="fullscreen"> </iframe> </div> ### Related Topics --- [[Home|Home]] | [[Mechanics]] | [[Notes Vault/Physics Notes Vault/Kinematics/Kinematics|Kinematics]] | [[Notes Vault/Physics Notes Vault/Dynamics/Dynamics|Dynamics]] | [[Force]] | [[Net Force]] | [[Newton's First Law]] | [[Newton's Second Law]] | [[Newton's Third Law]] | [[Inertia]] | [[Notes Vault/Physics Notes Vault/Dynamics/Weight]] | [[Normal Forces]] | [[Notes Vault/Physics Notes Vault/Dynamics/Friction]]