| A | B |
|---|
| FORCE | ANY 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 REPULSION (PUSHING) OR ATRRACTION (PULLING) BETWEEN POLES OF MAGNETS |
| GRAVITATION | THE FORCE THAT HOLDS THINGS TO THE SURFACE OF EARTH |
| BALANCED FORCES | EQUAL IN SIZE AND OPPOSITE IN DIRECTION |
| UNBALANCED FORCES | WHEN ONE FORCE IS GREATER THAN ITS OPPOSITE FORCE |
| ACCELERATION | WHEN UNBALANCED FORCES ACT ON AN OBJECT, THE OBJECT STARTS TO MOVE, SPEED UP, SLOWS DOWN, STOPS, OR CHANGES DIRECTION |
| NET FORCE | ADDING OR SUBTRACTING THE INDIVIDUAL FORCES GIVES A VALUE OF THE COMBINED FORCES |
| WORK | THE USE OF A FORCE TO MOVE AN OBJECT THROUGH A DISTANCE |
| POWER | THE AMOUNT OF WORK DONE FOR EACH UNIT OF TIME |
| MACHINE | SOMETHING THAT MAKES WORK SEEM EASIER BY CHANGING THE SIZE OR THE DIRECTION OF A FORCE. |
