Position versus Time Lab


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We are acquainted with the two-dimensional coordinate-plane in algebra class. We learn about graphing equations that have an input (or dependent) variable , and this input variable is associated with the horizontal axis. By habit, we refer to this as the -axis. But it does not have to be .

Physicists often plot time on the horizontal axis. In that case, the horizontal axis is called the time axis or -axis, and not the -axis.

In the study of motion, the first thing we want to know is where an object is at any given time. In a physics lab, we can study this by observing a moving object and recording its and coordinates at a variety of times , which we can then plot. We have created a virtual lab in Scratch to study position, time, and average speed.

The application is hosted on the Scratch website, where you can run it in your browser, or download it into Scratch, where you can modify it in any way you wish.

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