When one quantity changes at a constant rate with respect to another, we say they are linearly related. Mathematically, we describe this relationship by defining a linear equation. In real-world applications, some quantities are linearly related and can be represented by using a straight-line graph.
In this activity, you will create straight-line, or constant-speed, position versus time plots using a Motion Detector, and then develop linear equations to describe these plots mathematically.
Record distance versus time data for a person walking at a uniform rate.
Analyze the data to extract slope and intercept information.
Interpret the slope and intercept information for physical meaning.
Sensors and Equipment
This activity features the following Vernier sensors and equipment.