| A | B |
|---|
| force | A _________is a push or a pull. |
| net | ____orce is the sum of forces acting on an object. |
| balanced | ________ forces: are equal and opposite. |
| unbalanced | ___________forces: are not equal. |
| arrows | Force ________ show the magnitude and direction of a force. |
| inertia | __________ is the tendency of an object to resist change to its motion. An object's inertia is related to its mass. |
| mass | _______is the amound of matter in an object. |
| matter | _______ is stuff that physically exists, has mass and volume. |
| Newton's first law | states that "an object at rest remains at rest and an object will remain in motion unless acted upon by an unbalanced force." |
| Law of Inertia | another name for Newton's first law |
| free body | ____ a diagram that shows forces acting on an object |
| Isaac Newton | _______created three laws of motion |
| magnitude | size, amount, or strength of something |
| gram | the metric unit of mass |
| kilogram | 1000 grams |
