Work Done Simulation
This GeoGebra app allows users to change the magnitude and direction of the force acting on an object, as well as the initial velocity. The change in kinetic energy is calculated...
December 2019
Solar Eclipse in Singapore 26 Dec 2019
To catch the annular solar eclipse in MOE HQ on 26 Dec 2019, we ordered some solar glasses two weeks beforehand. Good thing they came in time despite the expected delay due to the...
Review of Sci-sational Christmas at Science Centre Singapore
In a nutshell, Sci-sational Christmas offers value-for-money interactive family festive fun. Open from 1 to 25 Dec 2019 at the Annexe of Science Centre Singapore, visitors will...
Uniform vertical circular motion
The following GeoGebra app simulates the force vectors on an object in uniform vertical circular motion. A real world example of this would be the forces acting on a cabin in a...
Vertical Non-Uniform Circular Motion
This is a simulation that shows the vectors of forces acting on an object rolling in a vertical loop, assuming negligible friction. To complete the loop, the initial velocity must...
Aircraft Turning in a Circle: a 3-D Visualisation with GeoGebra
This GeoGebra app is a 3-D visualisation tool of the force vectors acting on an aircraft turning with uniform circular motion in a horizontal plane. I prepared this in advance as...
Does Hydrostatic Pressure Depend on Container Shape?
The following GeoGebra app simulates a pressure sensor that measures hydrostatic pressure, calibrated to eliminate the value of atmospheric pressure. The purpose of this...
Hydrostatic Pressure and Upthrust
This app is used to demonstrate how a spherical object with a finite volume immersed in a fluid experiences an upthrust due to the differences in pressure around it. Given that...