Officer Aptitude Rating (OAR) Practice Test 2025 – Comprehensive All-In-One Guide to Exam Success!

Newton's First Law of Motion, also known as the law of inertia, states that an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an external force. This principle emphasizes the concept of inertia, which is the tendency of an object to resist changes in its state of motion.

In practical terms, if no net external forces (like friction, air resistance, or any applied forces) act on a moving object, it will continue moving in a straight line at a constant velocity indefinitely. This law applies universally, whether discussing everyday objects, planets in space, or any other situation involving motion.

The other options do not accurately reflect the principle of inertia as defined by Newton's First Law. For instance, stating that an object will come to a rest immediately overlooks the concept of inertia; an object in motion does not stop unless acted upon by an external force. The idea that it will accelerate indefinitely misrepresents the law since constant velocity does not involve acceleration unless an external force is applied. Lastly, the suggestion that it will slow down over time only due to gravity limits the applicability of the law, as it does not account for other forces or conditions that can act on the object, emphasizing that force