Secondary 2: Explore the Reflection of Light
Yesterday, Secondary 2 students conducted a simple and fun science experiment to learn about the reflection of light. The activity was part of their physics lesson on how light behaves when it hits an object.
For this experiment, students used simple tools such as a smartphone flashlight (searchlight), a mirror, a piece of glass, and several objects. These tools helped them observe how light travels and reflects.
First, students turned on the flashlight on their smartphones and directed the light toward a mirror placed on the table. They observed that the light beam bounced back after hitting the mirror. This showed that light can be reflected.
Next, students changed the position of the flashlight and measured the angle of incidence (the angle of incoming light) and the angle of reflection (the angle of reflected light). They found that both angles were the same. This proved the law of reflection, which states that:
The angle of incidence is equal to the angle of reflection.
Students also tried shining the light on different objects, such as glass and solid surfaces, to see how each material reflected light differently. From this activity, they learned that smooth surfaces reflect light clearly, while rough surfaces scatter light.
At the end of the experiment, students worked in groups to discuss their observations and write a scientific report. They recorded the tools, procedures, results, and conclusions based on their findings. This helped them practice not only their scientific skills, but also their ability to analyze data and communicate their ideas clearly.
