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Tolli/Stapp - 8
Changes in Force and Motion - 6.8BCD
| Term | Definition |
|---|---|
| Resting Position | Refers to an object remaining in the same spot relative to another object. |
| 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. |
| Direction | A straight path that an object can move along. |
| Speed | The rate of change of position (or distance traveled) with respect to time; units in which speed is measured are expressed as distance per time (example: meters per second). |
| Distance-Time Graph | This type of graph illustrates changes in motion. Time is graphed on the x-axis and distance is graphed on the y-axis. |
| Line Graph | A graph in which the data are represented by points connected by one or more lines. |
| X-Axis | The horizontal line with labels on a coordinate grid; time is represented in the x-axis. |
| Y-Axis | The vertical line with labels on a coordinate grid; distance is represented on the y-axis. |
| Average Speed | Average speed is calculated by dividing the total distance an object traveled by the total time it took the object to travel the distance (s = d/t). Speed describes the rate of movement. |
| Force | A push or pull that can change the motion of an object, measured with a spring scale in Newton (N) units. |
| Balanced Forces | Separate forces on an object that combined do not change the movement of the object. |
| Unbalanced Forces | When a force is pushing on another force with either more power or less power than the other. |
| Potential Energy | Energy that is stored in a system or object. |
| Kinetic Energy | Energy of motion. |
| Position | Where something is located. |
| Distance | Amount of space between two objects, points, lines, etc. |
| Change | To make different in some way; alter. |
| Motion | Act or process of changing position or place. |
| Time | The measured period over which an action takes place. |
| Measurements | A collection of quantitative data. |