Lakar bentuk roket pada kertas atau kad nipis, warnakan dan gunting dengan bantuan orang dewasa. Model ringan mudah digerakkan udara.
Langkah 1
Rancang roket daripada bahan ringan
Lakar bentuk roket pada kertas atau kad nipis, warnakan dan gunting dengan bantuan orang dewasa. Model ringan mudah digerakkan udara.
lakaran → bentuk ringan → gunting selamat
Roket daripada bahan ringan = 用轻材料做火箭 先在纸或薄卡纸上画火箭的样子,涂颜色,再请大人帮忙剪下来。火箭要轻,空气才推得动它。例子:一张纸很容易被吹走,一本书却吹不动。注意:用剪刀时刀口朝外,最好有大人在旁边。
Roket daripada bahan ringan = a rocket from light materials Sketch a rocket shape on paper or thin card, colour it, and cut it out with an adult's help. The rocket must be light so moving air can push it. Example: A sheet of paper blows away easily, but a book does not move when you blow on it. Watch out: Point scissor blades away from you and have an adult nearby.
Langkah 2
Straw pendek menjadi saluran tertutup
Lekatkan straw pendek pada roket dan tutup satu hujungnya. Masukkan straw panjang tanpa melekatkannya supaya udara boleh ditolak ke dalam.
Straw pendek tertutup = short straw with a closed end Tape a short straw to the rocket and seal one end. Slide a long straw inside it without taping, so air can be pushed in. The sealed end blocks the air. Example: Cover one end of a straw with your finger and blow; you feel the air pushing on your finger. Watch out: If the long straw is taped down, the rocket cannot launch.
Langkah 3
Tiupan menolak roket
Apabila udara ditiup melalui straw panjang, udara menolak bahagian tertutup dan roket bergerak. Halakan ke ruang kosong, bukan ke muka.
tiup udara → tolakan → roket bergerak
Tiupan menolak roket = 吹气推动火箭 从长吸管吹气,空气冲到短吸管封住的一端,把它往前推,火箭就飞出去。发射时要对着空地,不能对着别人的脸。例子:吹好的气球一放手,里面的空气冲出来,气球就乱飞。注意:吹得越用力飞得越远,所以方向一定要安全。
Tiupan menolak roket = blowing pushes the rocket When you blow through the long straw, air rushes to the closed end of the short straw and pushes it, so the rocket shoots forward. Aim at an empty space, never at someone's face. Example: Let go of a blown-up balloon and escaping air sends it zooming around. Watch out: A harder blow sends the rocket further, so always check the direction is safe first.
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Mengapakah roket dibuat ringan?
Mengapakah roket dibuat ringan = 为什么火箭要轻 题目问火箭为什么要做得轻。回想第1步:火箭是靠什么力量移动的。想想轻和重的东西,哪一个比较容易被一口气推走。会不会沉下去、会不会变磁铁,都可以拿来检查。例子:吹桌上的羽毛会飞走,吹硬币几乎不动。注意:火箭是在空中飞,不是放在水里。
Mengapakah roket dibuat ringan = why the rocket is light The question asks why the rocket is made light. Recall Step 1 and what force moves the rocket. Think about whether a light or a heavy object is easier to push with one breath. Also check choices about sinking or becoming a magnet. Example: Blow on a feather and it flies off, but a coin on the table barely moves. Watch out: The rocket flies through air; it is not placed in water.
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Apakah fungsi straw panjang?
Fungsi straw panjang = 长吸管的作用 题目问长吸管有什么用。回想第2步:长吸管插进短吸管里,我们从哪里吹气。想想吹进去的空气走哪条路。会不会过滤水、发光,可用常识检查。例子:用吸管喝饮料时,饮料就是顺着吸管上来的。注意:吹气前要确认长吸管插得够深,空气才不会漏掉。
Fungsi straw panjang = the job of the long straw The question asks what the long straw is for. Recall Step 2: the long straw slides into the short one, and that is where we blow. Think about which path the air takes. Use common sense on choices about filtering water or making light. Example: When you sip a drink, the liquid travels up along the straw. Watch out: Push the long straw in far enough before blowing so air does not leak out.
Ringkasan
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Ingat: rancang roket daripada bahan ringan; straw pendek menjadi saluran tertutup; tiupan menolak roket.