## 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 along with the work done in the direction of… Continue Reading

## 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 enter 3 main activity zones: Zone 1: Hot vs Cold Experiments Watch as… Continue Reading

## 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 ferris wheel.

## 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 be sufficiently high so that contact between the object and… Continue Reading

## 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 I will be lecturing on this JC1 topic next… Continue Reading

## 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 simulation is to address certain misconceptions by students such as the assumption that the shape of… Continue Reading

## 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 the centre of mass remains in the same position… Continue Reading

## IP3-02-Kinematics

Graphical relationship between acceleration, velocity and displacement I created the following GeoGebra app to illustrate the relationships between the physical quantities acceleration, velocity and displacement. Modify the acceleration graph using the two green dots. Notice how the velocity and displacement… Continue Reading

## IP3 01 Measurement

Physical Quantities and Units Measuring Tools Vernier Calipers Micrometer Vectors and Scalars Prefixes