Position Graph Reflection: Understanding Motion Changes

How does your position graph differ from the position graphs for steady (constant velocity) motion that you observed in Lab 1: Introduction to Motion?

What are the characteristics of a position graph for steady motion?

Answer:

The position graph for steady motion is a straight line, suggesting a constant velocity. However, if the motion changes such as an object accelerating, the graph changes and may become a curve that gets steeper or less steep over time, corresponding to positive or negative acceleration.

Understanding the differences in position graphs is crucial to comprehend changes in motion. In a position graph for steady (constant velocity) motion, the graph appears as a straight line. This straight line indicates that the object is moving at a constant speed without any acceleration or deceleration.

On the other hand, if you observe a position graph where the shape is a curve that gets steeper or less steep over time, this suggests that the object is experiencing acceleration or deceleration. A steeper curve indicates positive acceleration, meaning the object is speeding up, while a less steep curve signifies negative acceleration, indicating the object is slowing down.

Therefore, if your position graph does not display a straight line, it means that the motion of the object is not constant, and changes are occurring in its velocity over time. By analyzing the shape of the position graph, you can gain insights into how the object's motion is evolving.