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Download FORCE and MOTION UNIT VOCABULARY
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Transcript
Force, Motion and Energy Vocabulary Term Definition acceleration The change in an object’s speed or direction (velocity) over time. f=ma The formula for finding force (N) by using mass (g) times acceleration (m/sec2). force A push or pull. Example Traveling North at 50 m/sec2 Pull Push friction The force that resists the motion of two surfaces that are touching. gravity The force of attraction between two objects. inertia An object’s tendency to resist changing its motion. motion A change in position. net force The total amount of force acting on an object. 5N, right net force 20N Newton normal force s=d/t speed velocity weight The SI unit of force. Measured with a spring scale. 15N N The force equal and opposite to gravity The formula for finding speed. Speed (m/sec) = distance (m) / time (sec) The distance traveled by an object in an amount of time. Speed with a direction. Velocity has a unit of m/sec + direction. The measure of the gravitational force of gravity on an object. Measured in Newtons or grams with a spring scale
