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L7-Chemistry/Physics
CHEC 5th/6th Science
| Question | Answer |
|---|---|
| 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 |