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User can change the length, the mass ofthe bob or constant of gravitational accleration, by typing values in the appropriate fields before hitting "Go". Subsequent simulations will be plotted in differentcolors so that they may be compared. (Note the effect of changing length, mass, gravity, and initial amplitude on the frequency)...
User can change the length, the mass of the bob or constant of gravitational accleration, by typing values in the appropriate fields before hitting "Go". Subsequent simulations will be plotted in different colors so that they may be compared. (Note the effect of changing length, mass, gravity, and initial amplitude on the frequency) Pressing "Reset" will clear all old plots.
I like the fact that each run of the pendulum is plotted in a different color. However, would have preferred to have option of having the axis displayed horizontally. This would have helped me to see the change in T, period, easier.
Used in course
7 years ago
The website was excellent in that it allowed students to manipulate many more variables than typically can be done in a lab setting. The material is accurate and results of data manipulation are easy to interpret. I used it after demonstrating a pendulum to the whole class and explaining what things they could vary. Students actually collected data in their lab notebooks and formulated conclusions supported by the data. Students liked the fact that they could vary the lengths, mass, and gravity. About half of them said that the computer activity would have been sufficient for them to learn the concepts. The other half indicated that they liked being able to set up their own pendulums and compare the results of those to what they found in the computer activity.
The website was easy to access from Merlot but we had some problems when typing in the address. About half of the students got the "this page cannot be found" message.
8 years ago
I used the website as the basis for a Problem-based Learning model lesson. Students made predictions using a laboratory simulation. After recording their predictions, I introduced the website and had them work in groups to record data. The students compared their predictions using the laboratory simulation and the website. After the lesson, students completed a rubric to assess the lesson's effectiveness. The students rated one of the lesson's objectives, which was stated as "the simulation helped me meet the outcomes of the lesson," a "6" on a scale of 1-6. STudents also commented that they would like to use this sort of activity more frequently to increase their understanding of science concepts.
Students felt the website was user friendly, and two students reported that they will use this site again.