A position-time graph, also known as a displacement-time graph, is a visual representation of an object's position or displacement over a period of time. It shows how an object's position changes relative to a reference point.
The position of an object can be determined by locating the point on the graph where the position-time curve intersects the time axis. This point represents the object's initial position or its position at a specific time.
A horizontal line on a position-time graph indicates that the object is not moving, as its position does not change over time. The slope of the line is zero, representing zero velocity.
Velocity is calculated by finding the slope of the position-time graph. The slope is equal to the change in position divided by the change in time, which represents the object's average velocity over that time interval.
A steep slope on a position-time graph represents a higher velocity or speed, as the position changes rapidly over time. A gentle slope indicates a lower velocity or speed, as the position changes slowly over time.