Bahan legap seperti kad tebal atau logam menghalang hampir semua cahaya. Oleh itu, bayang-bayang yang terbentuk biasanya paling jelas dan gelap.
Langkah 1
Bahan legap menghasilkan bayang-bayang jelas
Bahan legap seperti kad tebal atau logam menghalang hampir semua cahaya. Oleh itu, bayang-bayang yang terbentuk biasanya paling jelas dan gelap.
legap → cahaya dihalang → bayang-bayang jelas
bahan legap = 不透明材料 厚卡纸、金属这类不透明材料几乎挡住所有的光。光过不去，所以形成的影子最清楚、最暗。 例子：木门关上后，光进不来，门后面很黑。 注意：不透明不代表颜色一定是黑的，白色的厚卡纸也是不透明。
bahan legap = opaque material Opaque materials such as thick card or metal block almost all light. Because light cannot pass, the shadow they form is usually the clearest and darkest. Example: A closed wooden door lets no light through, so the area behind it is very dark. Watch out: Opaque does not mean black; a thick white card is opaque too.
Langkah 2
Bahan lut cahaya menghasilkan bayang-bayang kurang jelas
Bahan lut cahaya seperti kertas surih membenarkan sebahagian cahaya melaluinya. Bayang-bayang masih kelihatan tetapi kurang jelas.
lut cahaya → sebahagian cahaya lalu → bayang-bayang kurang jelas
bahan lut cahaya = 半透明材料 描图纸这类半透明材料让一部分光通过。影子还看得见，但比较淡、不太清楚。 例子：浴室的磨砂玻璃让光进来，可是外面的人只像一个模糊的影子。 注意：半透明材料也会有影子，只是淡一点，不要说成“没有影子”。
bahan lut cahaya = translucent material Translucent materials such as tracing paper let some light through. A shadow still appears, but it is paler and less clear. Example: Frosted bathroom glass lets light in, yet a person outside looks like a blurry shape. Watch out: Translucent materials still make a shadow, just a fainter one, so do not say there is none.
Langkah 3
Bahan lut sinar hampir tidak menghasilkan bayang-bayang
Bahan lut sinar yang jernih membenarkan kebanyakan cahaya melaluinya. Biasanya tiada bayang-bayang, atau bayang-bayang sangat kabur.
lut sinar → kebanyakan cahaya lalu → tiada bayang-bayang
bahan lut sinar = 透明材料 干净透明的材料让大部分光通过。所以它的影子非常模糊，甚至看不见。 例子：阳光照着装满清水的玻璃杯，桌上只看到很淡的影。 注意：透明的东西如果脏了或贴上贴纸，挡住的光变多，影子会变明显。
bahan lut sinar = transparent material Clear, transparent materials let most light pass through them. So their shadow is very faint or cannot be seen at all. Example: Sunlight shining on a glass of clear water leaves only a very pale shadow on the table. Watch out: If a transparent item is dirty or has a sticker on it, it blocks more light and the shadow becomes easier to see.
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Bahan manakah biasanya menghasilkan bayang-bayang paling jelas?
bayang-bayang paling jelas = 最清楚的影子 题目问哪种材料的影子最清楚。先把每个选项分类：透明、半透明还是不透明。再回想哪一类挡住的光最多。 例子：铝箔挡光很多，所以在灯下的影子又黑又清楚。 注意：paling 表示“最”，要比较三个选项，不是只找一个会有影子的。
bayang-bayang paling jelas = the clearest shadow The question asks which material gives the sharpest shadow. First sort each choice into transparent, translucent or opaque. Then recall which group blocks the most light. Example: Aluminium foil blocks a lot of light, so under a lamp its shadow is dark and sharp. Watch out: Paling means most, so compare all three choices instead of picking the first one that casts any shadow.
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Pilih jawapan. Jika belum tepat, baca petunjuk dan cuba lagi.
Apakah jenis bayang-bayang yang dihasilkan oleh kertas surih?
kertas surih = tracing paper The question asks what kind of shadow tracing paper makes. First decide which group it belongs to: does light pass through all of it, some of it, or none of it? Then match that group to its shadow. Example: Thin baking paper on a window keeps the room bright, but you cannot see outside clearly. Watch out: Be careful with absolute words such as sentiasa, which means always.
Ringkasan
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Kamu telah belajar tentang Kejelasan Bayang-bayang.
Ingat: bahan legap menghasilkan bayang-bayang jelas; bahan lut cahaya menghasilkan bayang-bayang kurang jelas; bahan lut sinar hampir tidak menghasilkan bayang-bayang.
