Commonly Used Words. Arranged alphabetically, these sections include spelling, usage, punctuation and capitalization notes for specific words and phrases commonly used in the CSU. An entry without an explanation is simply to indicate the correct spelling of a word or words. A B-C D-F G-M N-S T-Z.
Noun. 1. Newton's first law of motion-a body remains at rest or in motion with a constant velocity unless acted upon by an external force. first law of motion, Newton's first law. law of motion, Newton's law, Newton's law of motion-one of three basic laws of classical mechanics.
Why Newtonâs first law is sometimes called the law of inertia? A.)Because inertia is the same thing as friction. B.)Because inertia is the tendency of objects to resist changes in their motions. C.)Because inertia describes the application of force to an object in motion. D.)Because inertia describes the application of force to an object at rest.