Force - An action that changes or maintains motion. Symbolized by F, Motion - Moving or a specific action or movement., Newton’s 1st Law of Motion - An object will keep its motion in the same way unless it is applied by a force., Newton’s 2nd Law of Motion - The acceleration of an object depends on how heavy it is and the amount of force applied., Newton’s 3nd Law of Motion - Every time one object applies force to another, the other applies an equal and opposite force to the first., Gravity - A force the Earth has that pulls objects towards it, Friction - A force between two surfaces that are sliding, or trying to slide, across each other, Air Resistance - A force air has against a moving object, Unbalanced Force - When one force is greater than another, Balanced Force - When two forces are equally strong, Inertia - The tendency (頃向) to stay the same, Mass - A measurement of how much matter is in an object, Acceleration - How fast something speeds up, Potential Energy - The energy that's been saved or stored, Kinetic Energy - The energy something has because of its motion, (At) Rest - Not moving, Uniform (Motion) - Movement along a straight line at a constant speed, External - Outside, Reaction - A movement (force) as a consequence of another movement (force),

Newton's Three Laws - Vocabulary Practice

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