# Month: January 2020

## Relationship between displacement-time and velocity-time graphs

Through this GeoGebra app, students can observe how the gradient of the displacement-time graph gives the instantaneous velocity and how the area under the velocity-time graph gives the change in displacement.

In the GeoGebra app below, you will see a displacement-time graph on the left and its corresponding velocity-time graph on the right. These graphs will be referring to the same motion occuring in a straight line. Instructions

1. Click “Play” and observe the values of displacement and velocity change in each graph over time.
2. Note the relationship between the gradient in the displacement-time graph and the value of velocity.
3. Note the relationship between the area under the velocity-time graph and the value of displacement.

## Instantaneous vs Average Velocity

This GeoGebra app allows students to observe the difference between instantaneous and average velocity from a graphical perspective.