- 期刊
綠色是葉子「反射」的顏色：色彩的物理探究與實作
Physics Teaching, Inquiries and Practice on Leaves Bounce Green
摘要
當光源發出的光經過物體反射或透射後，眼睛感受到的反射光顏色或透射光顏色與原始光源發出的光顏色不同。例如：在自然光的照射下，我們觀察到葉子所呈現的綠色，其實是葉子的葉綠素反射了綠色光，與照射在葉子上的自然光顏色不同。顏色在物理教學中，會採用紅、綠、藍光等三原色混色產生白光之加色法，及青、洋紅及黃色為色料三原色之混色減色法之基礎課程。為了讓學生進一步理解色彩的原理是來自於光的反射、透射或自身的光源色，本探究與實作採用三原色LED燈混合模型、影片觀賞及燈照樹葉、蘋果及玻璃紙、3D眼鏡等各種小道具，讓學生有視覺及動手實作來體驗顏色的原理及討論可能的運用。
並列摘要
When the light emitted or the light is reflected or transmitted by an object, the light perceived by the viewer's eyes with light reflected color or transmitted color which is different from the color of the emitted light. In natural science, the green color of leaves is due to chlorophyll, while in physics, it is the light (color) that leaves do not need (reflect). In physics teaching, colors are taught based on additive color mixing using red, green, and blue - the three primary lights that combine to produce white light. The three primary paint colors are subtractive color combinations of cyan, magenta, and yellow. To help students understand the principle of colors is the light shines upon objects and is eventually reflected or transmitted to our eyes, known as color vision. This exploration and implementation utilize various LED color lights, YouTube videos, leaves, apples, cellophane paper, 3D glasses tools to assist students in experiencing the principles of color through visualized and hands-on practices. It also provides an opportunity for students to discuss possible applications.