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531610
Mrs. Patelunas' Forces, Friction and Momentum Vocabulary
| Question | Answer |
|---|---|
| kinetic friction | the friction caused by moving objects |
| static friction | the friction that exists between two stationary objects |
| force | a push or a pull that gives energy to an object |
| momentum | the product of an object's mass and its velocity |
| Newtons | the unit of force |
| Net Force | the total of all the forces acting on an object |
| Law of Conservation of Momentum | the total momentum of a group of objects remains the same after collision unless forces like gravity or friction act on the objects. |
| balanced forces | the net force acting on an object is zero |
| unbalanced forces | the net force acting on an object is not zero |
| sliding friction | the type of kinetic friction that occurs when two solid objects rub against each other |
| fluid friction | the type of kinetic friction that occurs when objects move through a liquid or a gas |
| rolling friction | the type of kinetic friction that occurs when an object rolls over a surface |