Mengapa Air di Luar Gelas Bisa Masuk Kedalam? | Praktikum Penerapan Hukum Boyle Dalam Kehidupan

Summary

In this video, Dera Puspita and Tari Fadilah conduct a simple experiment to demonstrate how water rises into a glass when a candle is covered. The experiment shows that when the candle is lit and placed on a plate with water, and then covered by a glass, the candle goes out due to the lack of oxygen. This results in a drop in pressure inside the glass, causing the water from the plate to be sucked into the glass. The video explains this phenomenon based on Boyle’s Law, highlighting the inverse relationship between pressure and volume in a closed space.

Takeaways

• 😀 The video introduces a simple experiment involving water and a candle.
• 😀 The goal is to demonstrate how water can rise into a glass when a candle is placed under it.
• 😀 The video hosts are Dera and Tari, who will explain the process of the experiment.
• 😀 The experiment involves using a plate, candle, fire source, water, and a glass.
• 😀 The steps include lighting the candle, placing it on a plate, and covering it with a glass.
• 😀 As the candle burns, it consumes oxygen, which reduces the available oxygen in the enclosed space under the glass.
• 😀 The lack of oxygen causes the candle flame to go out, and the air pressure inside the glass becomes lower than outside.
• 😀 This pressure difference causes the water surrounding the glass to be sucked into the glass.
• 😀 The principle behind this is related to Boyle's Law, where volume and pressure are inversely proportional when temperature is constant.
• 😀 The experiment successfully demonstrates how pressure changes inside a confined space affect the movement of water.
• 😀 The video encourages viewers to try this simple experiment at home to understand the principles of gas behavior.

Q & A

What is the main objective of the experiment in the video?

The main objective of the experiment is to demonstrate why water inside a dish rises into a glass when a candle is extinguished by covering it with the glass.

What materials are needed for this experiment?

The materials required for this experiment are a dish, a candle, a match to light the candle, colored water, and a glass to cover the candle.

What happens to the candle when it is covered with a glass?

When the candle is covered with a glass, the flame gradually dims and eventually goes out because the oxygen inside the glass is used up by the burning process.

Why does the water rise inside the glass during the experiment?

The water rises inside the glass because the burning of the candle consumes oxygen, creating a pressure difference. The external air pressure, which is higher, forces the water into the glass.

What scientific principle is being demonstrated in this experiment?

The experiment demonstrates Boyle's Law, which states that in a closed system, the volume of a gas is inversely proportional to its pressure, when the temperature is constant.

How does the consumption of oxygen affect the air pressure inside the glass?

As the candle burns, it uses up the oxygen inside the glass, causing the air pressure to decrease. The lower pressure inside the glass causes the external air pressure to push the water into the glass.

What role does oxygen play in the candle burning process?

Oxygen is essential for the combustion process. Without enough oxygen, the candle flame will extinguish, as the reaction requires oxygen to continue burning.

What happens to the air pressure inside the glass when the candle goes out?

Once the candle goes out, the air pressure inside the glass decreases because the oxygen is depleted, and the pressure inside becomes lower than the external air pressure.

What causes the water in the dish to be drawn into the glass?

The difference in air pressure between the inside and outside of the glass causes the water in the dish to be drawn into the glass. The higher external air pressure pushes the water inside the glass.

Can this experiment be performed at home? What precautions should be taken?

Yes, this experiment can be performed at home. It is recommended to be cautious with fire, ensuring the area is safe and there are no flammable objects nearby.