| A | B |
|---|
| force | a push or pull exerted on an object |
| net force | the overall force on an object after all the forces are added together |
| unbalanced force | a force on an object that changes the motion of the object |
| balanced force | a force on an object that does not change the motion of the object |
| newton | a unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second |
| mass | the amount of matter in an object |
| Newton's first law of motion | this states that an object at rest will remain at rest, and an object in motion will continue in motion at constant speed unless the object is acted upon by an unbalanced force |
| Newton's second law of motion | this states that the net force on an object is equal to the product of its acceleration and its mass |
| inertia | the resistance of an object to any change in its motion |
