Secondary 1 students conducted an experiment to explore different types of waves using water as the medium. To carry out the experiment, they utilized a tray filled with water, a small pebble, a tuning fork and their hands to create wave motion. Their objective was to observe and understand the formation of two main types of waves: longitudinal and transverse waves.
During the experiment, the students discovered that shaking the tray back and forth caused the water to move in a way that demonstrated longitudinal waves, where the motion of the water particles moved parallel to the direction of the wave propagation. On the other hand, when they dropped a pebble onto the surface of the water, they observed the formation of ripples that spread outward in concentric circles. This demonstrated transverse waves, as the water particles moved perpendicular to the direction of wave travel.
Additionally, the students used a tuning fork to further examine wave behaviour. By striking the tuning fork against a hard surface and then holding it close to the water in the tray, they noticed small splashes forming on the surface. This occurred because the vibrations from the tuning fork generated sound waves, which are an example of longitudinal waves traveling through air and interacting with the water.
This hands-on experiment encouraged students to engage in critical thinking and develop their communication skills as they collaborated in groups to analyse their observations. The activity was both educational and enjoyable, sparking curiosity and enthusiasm among the students. Their excitement was evident as they actively participated in the experiment, eager to learn more about wave properties and their real-life applications.
