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### 19 Cards in this Set

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 What does Newton mean? Newton stands for meter/second/second or meters/second2 1N=1kg. x 1 m/s/s. Three Types of Friction 1. Slding 2. Rolling 3. Fluid Friction depends on Two things. 1. The surface of the objects 2. The material of the objects What is air resistence Air resistence makes a falling object slow down. Force A force is a push or a pull How can prevent friction? Use lubercants such as oil and wax. Balanced Forces Balanced forced will relsult in no motion because they are equal and oppisite. Mass The amount of matter in an object. Unbalanced Forces Unbalanced forces result in motion. The object will get accelerated. Universal Gravitation Every object with a mass has a gravitational pull and it depends on two things. 1. The mass of the object 2. The distance between the objects Terminal Velocity When the upward force of air equals the downward force of gravity and acceleration stops therefore reaching constant velocity. Vector Line with an arrow. Prijectile Motion If you shoot something horizontally and vertically out the same time they will land at the same rate. Second Law of Motion Acceleration ,mass or inertia, and force are all related. Force=Mass x acceleration First Law of Motion An object will remain at constant speed or at constant rest forever unless outside forces ineract. Inertia The property of matter that to resist any change in motion. Third Law of Motion For every action there is an equal and oppisite reaction. Forces come in pairs. Friction The force that causes objects to slow down and eventually stop. Weight The measure of the force of gravity on an object.