| A | B |
|---|
| Collide | To strike or hit something with any amount of force |
| Force | A push or pull that can change the motion of an object |
| Interacting Objects | Objects that affect one another |
| Motion | The change in an object’s position with respect to time and in comparison with the position of other objects used as reference points |
| Newton, N | Unit of measurement for force |
| Newton’s Law of Action-Reaction | Newton’s law stating that for every action force there is an equal and opposite reaction force; often referred to as Newton’s third law of motion |
| Spring Scale | A tool that measures a pulling force by the tension on a spring in units of newtons |
| Observation | Using senses (sight, hearing, taste, touch, smell) to collect Information |
| Inference | Using observations and background knowledge to make the best conclusion/answer |
