Day 76: Bouncy Balls, Bar Charts, & Quantitative Gas Laws

AP Physics 1: Bouncy Balls

Students started a lab to determine what interaction is dissipating a bouncy ball’s energy (my article on this lab appears in the Jan, 2018 issue of The Science Teacher). Today was all about figuring out what kind of evidence might be useful, so students worked on sketching representations for the bouncy ball’s motion. I could tell I’ve been slipping on spiraling back to earlier concepts; students had a tougher time than I’d hoped sketching the velocity vs. time graph.

Physics: Bar Charts

Before diving in to some problems sketching energy bar charts, we did a quick round of representations jeopardy. Each group came up with a scenario, then sketched a set of energy pie charts and a matching set of energy bar charts to describe that scenario on a whiteobard. Then, they gave their whiteboard to another group who had to come up with a scenario that fit with the representations on the whiteboard they got.

Chemistry Essentials: Quantitative Gas Laws

I am as part of Pivot Interactive’s Chemistry Fellows program.

Students used Pivot Interactives to collect data for a relationship between the temperature of a gas and its pressure. This is a great example of the kind of lab I really like Pivot Interactives for; it makes a nice graph, but we just don’t have the equipment to try this lab. Its not as visually interesting as some of the other labs on Pivot, but it is still clearly an actual lab and not idealized, simulated data. Students made some nice connections to their qualitative observations made using syringes last week.

pivot temp pressure.PNG

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