Phys Sci - 9/4, 9/5 - Constant Velocity (Marble) Lab

Finish and submit your podcast walk information.

Today we write our first lab report!  You will find the template in Classroom.  

So, what are we going to do?  Since we saw last class that video helps us analyze time much more effectively than we could measure ourselves, we will put that to the test.

If we roll a ball down a ramp it will reach a very specific speed at the bottom of that ramp.  If we then let it roll on a very smooth surface (the floor) we can expect that friction will have little impact on slowing the ball down (for a while).  In other words, we will assume the ball is rolling at a constant velocity (the same speed) the entire time we are measuring it.

Floor tiles are incredibly uniform and can serve as a very good measuring device.  Just because they aren't a ruler doesn't mean they won't work.  Can you figure out how many meters wide a tile is?  How?

So, if we have a very good instrument to measure distance, and we know that video is a great instrument to measure time, we should be able to determine the velocity of the ball as it rolls, right?

***Note:  One partner will record video, using the Chromebook/web cam, and will then share those videos with their partners. EACH PARTNER ANALYZES VIDEO IN CAPCUT.  

We will complete the entire lab report, using the provided template and Google Sheet you create, together.  This will be your perfect version of a lab report.