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CHEC 5th/6th Science

Friction Force that holds back the movement of an object
Traction Friction between 2 objects that keeps them from sliding across each other
Adhesion Sticking together of two different materials
Cohesion Material sticking to itself
Lubricant substance that reduces friction
Drag Friction that slows down an object as it moves forward through air or water
Aerodynamic When an object is shaped in a way that reduces friction
Gravity attraction force that a very large object, such as the earth, has on smaller objects, like us
Law of Universal Gravitation The closer objects are to one another, the greater the attraction
Terminal Velocity constant speed an object obtains when friction prevents it from accelerating
Centripetal force force that acts on a body moving in a circular path, directed towards the center