Praktikum Kincir Air | SaBiKum | Eksperimen Sains | DIY

Summary

This video demonstrates how to create a simple water mill using everyday materials like a plastic bottle, straw, and a plastic spoon. The process begins by preparing the bottle with holes and attaching straws and a plastic hose to create airflow. The water-filled bottle activates the water mill by utilizing air pressure to move the attached water wheel. The video highlights how the movement of water from the bottom bottle to the top creates the force necessary to turn the wheel, making it a fun and educational DIY project for understanding basic engineering and physics concepts.

Takeaways

• 😀 The activity involves creating a DIY waterwheel using simple materials.
• 😀 A plastic bottle is used as the base of the waterwheel mechanism.
• 😀 Two holes are made at the top and bottom of the bottle to enable airflow and water movement.
• 😀 A straw is inserted into the top hole to channel air from the bottle to the water container.
• 😀 The bottom hole is connected to a plastic tubing, allowing water to flow into the bottle.
• 😀 The goal is to ensure that the straw doesn’t touch the water, keeping air pressure in the bottle.
• 😀 A plastic spoon is attached to the bottle cap, forming the rotating part of the waterwheel.
• 😀 A cardboard stand is created to support the waterwheel structure.
• 😀 The system works by using air pressure to push water out, creating movement in the waterwheel.
• 😀 The water flowing through the tube and straw helps generate the air pressure that causes the wheel to spin.

Q & A

What is the purpose of the air pump in the project?

The air pump, created by the air pressure within the bottle, is used to drive the water out through the straw, which then powers the waterwheel, making it spin.

Why is it important that the top straw does not touch the water?

The top straw must not touch the water to ensure that the air pressure inside the bottle is not compromised, which is crucial for the water movement and for the functioning of the waterwheel.

What materials are required to make this waterwheel?

Materials needed include a plastic bottle, straws, a plastic hose, hot glue, a spoon, a plastic cap, and some cardboard.

How does the water flow in this setup?

Water is drawn into the bottle via the straw and plastic hose, which creates an air pressure difference inside the bottle. This difference pushes the water out of the top straw, causing the waterwheel to spin.

What role does the plastic straw play in this project?

The plastic straw acts as a conduit for air from the bottle to the water container, and it is essential for transferring air pressure from the bottom to the top of the bottle.

How do the straws and hose connect to each other?

The straws are inserted into the holes in the bottle and are secured with hot glue. The plastic hose is connected to the bottom part of the bottle to facilitate the movement of water and air.

What is the purpose of the cardboard in this project?

The cardboard serves as a stand or support for the waterwheel, keeping it stable while it spins.

Why is it necessary to cut the spoon’s end flat?

Cutting the spoon's end flat ensures that it fits properly on the cap, allowing it to be affixed securely and function as a part of the waterwheel.

What happens when you press the upper part of the bottle?

Pressing the upper part of the bottle forces air out of the top straw, causing the waterwheel to spin as the water is pushed out of the bottom.

What scientific principle is demonstrated by this waterwheel project?

This project demonstrates the principles of air pressure and how it can be harnessed to move water, powering a mechanical movement like a waterwheel.