Perrr nah dengar ?? x pernah ? penah....?
- Dari kiri: model aksi.. wakekeke kedepik kawanku !, parachut yg tiggi, parachut yg tersangkut di pokok, sewaktu perlepasan roket jarak jauh, judges sedang mengambil tempoh masa utk parachut jatuh ke tanah.
Sejak mula menceburkan diri lam pertandingan roket air kat sekolah beberapa bulan yg lalu.. dr tatau langsung , sampai ke cem tau byk.. kekeke. x jugak , tapi rasa cem best dan hepi ble diberi kesempatan menyertai Program Penggalakan Sains dan Teknologi baru2 ni.Di sana, dapat bertemu dgn bermacam2 jenis roket yg berlainan jenis , rekabentuk , saiz , style dan model senibina yg unik dan kreatif.
What is a water rocket?
Water rockets are like their
model rocket cousins, except that these are powered by a combination of
water and
air pressure. The pressure vessel, the engine of the rocket, is usually a used
soft drink bottle.
A water rocket employes a compressed gas to accelerate water through its nozzle as a means of propulsion. The thrust of the rocket has two components: the force on the water across the area of the nozzle, and the force on an equal area within the pressure vessel which balances the force at the nozzle opening.
How they work ?
The bottle is half filled with water, then inverted so the
nozzle points towards the ground. The bottle is then pressurized (usually by means of a
bicycle pump) and then released. The water will be pushed out by the compressed air, and because of
Newton's third law,the rocket will fly upwards.
Faa ham? tak paam?? Kalo nak trg pnjg lebar.. mcm2 benda nak ckp (tak tipu !), jadi marilah klik kat memana link di bwk untuk maklumat lanjut.. (egegege malas lee tu !)
How to buildLinksIntroWorkshopCool water rocketsLauncherDetails
