WHAT IS LIGHT ENERGY?, is hurt my eyes, Light is a form of energy allows you to see the things around you., luminous source can be, natural an artificial, artificial only, natural only, this is natural source, , , this is artificial source, , , The thinks in these pictures are not light sources, , , , , HOW LIGHT BEHAVES? , , , , , , HOW OBJECTS INTERACT WITH LIGHT , TRANSPARENT, TRANSLUCENT. , OPAQUE, nope, USES OF LIGHT IN DAILY LIFE , , , , , , when there is no light., Darkness , bright, dim, when there is little light., Darkness , bright, dim, when there is a lot of light., Darkness , bright, dim, At night, we use light source, , , candle, The Sun is  ......... , at the center of our solar system, gives us heat and light, very small, The Sun is  ......... , at the center of our solar system, gives us light During the hours of daylight, and light , Our nearest star, so gives us heat, its so cold, moves across the sky, light is  ......... , travel away form its source, when hit object it reflect (bounces) , when hit object it travel new direction, very big , transparant is, allow almost all light to pass through them. Objects behind them can be seen clearly., allow some light to pass through them. Objects behind appear blurry or unclear., Do not allow light to pass through. They block light, objects behind cannot be seen at all., opaque is, allow almost all light to pass through them. Objects behind them can be seen clearly., allow some light to pass through them. Objects behind appear blurry or unclear., Do not allow light to pass through. They block light, objects behind cannot be seen at all., translucent is, allow almost all light to pass through them. Objects behind them can be seen clearly., allow some light to pass through them. Objects behind appear blurry or unclear., Do not allow light to pass through. They block light, objects behind cannot be seen at all., ........ reflect the light from the sun. , moon, sun, star, ........ is not a light source, moon, sun, star, some material ...... the light. , reflect, travel, they reflect light from a light source such as a ....., sun, flashlight, sun at midday, A, B, C, D, sun at afternoon, A, B, C, D, sun at early morning, A, B, C, D.

light

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?