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TRBC Chem/Phys L7
Exploring Creation with Chemistry & Physics Lesson 7 Vocab
Term | Definition |
---|---|
traction | The friction between two objects that keeps them from sliding across each other |
gravity | A force that attracts everything toward the center of the earth |
adhesion | The sticking together of two different materials. |
cohesion | When a material can stick to itself |
lubricant | A substance that reduces friction |
friction | A force that holds back the movement of an object |
drag | The friction that slows an object as it moves through air or water |
aerodynamic | A shape that allows an object to move through fluids and air without as much drag |
terminal velocity | The maximum speed an object can fall; the speed limit for falling objects |
centripetal force | A force that acts on a body moving in a circular path and is directed toward the center around which the body is moving |
law of universal gravitation | The law that says the closer things are to one another, the more powerful the attraction. |