| A | B |
|---|
| force | A push or pull that causes an object to move,stop,or change direction |
| friction | A force that opposes,or acts against,motion when two surfaces rub against each other |
| magnetism. | The force of attraction between magnets and magnetic objects |
| gravitation. | The force that pulls all objects in the universe toward one another |
| balanced forces | The forces acting on an object that are equal in size and opposite in direction,canceling each other out |
| unbalanced foces | Forces that not equal |
| net force. | The result of two or more forces acting together on an object |
| work | The use of force to move an object through a distance |
| power | The amount of work done for each unit of time |
| machine | Something that makes work easier by changing the size or the direction of a force |
