笛卡尔潜水员

演示气体可压缩性和玻意耳定律

Gas Laws Beginner (Middle School) 15 分钟 ~$3.00

目标

制作笛卡尔潜水员，演示气体可压缩性以及压力与浮力的关系。

背景

A Cartesian diver is a small inverted container partially filled with air, placed in a sealed bottle of water. When the bottle is squeezed, pressure increases, compressing the air in the diver, which becomes denser and sinks. Releasing the squeeze reduces pressure, the air expands, and the diver rises.

安全警告

  • No significant hazards

材料

  • Plastic bottle (1L) (1)
    With cap, clear
  • Small plastic condiment packet (1)
    Ketchup or soy sauce
  • Water (1 L)

设备

Scissors

步骤

1

Fill the plastic bottle completely with water, leaving no air space.

2 分钟
2

Drop in the condiment packet. It should barely float (adjust by adding/removing water if needed).

3 分钟
3

Seal the bottle cap tightly.

1 分钟
4

Squeeze the bottle firmly. The diver should sink.

2 分钟
5

Release the squeeze. The diver should rise.

2 分钟
6

Experiment with different squeeze pressures to control the depth. Explain using Boyle's law and Archimedes' principle.

5 分钟

预期结果

When squeezed, the air bubble in the packet compresses, the packet becomes denser than water and sinks. When released, the air expands, the packet becomes less dense and rises. This demonstrates Boyle's law (P↑ → V↓) in a tangible way.

清理

Empty the bottle and recycle. The condiment packet can be discarded.

详情

类别
Gas Laws
难度
Beginner (Middle School)
时长
15 分钟
预估费用
$3.00
步骤数
6
材料
3

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Frequently Asked Questions

What is the objective of 笛卡尔潜水员?
制作笛卡尔潜水员，演示气体可压缩性以及压力与浮力的关系。
How difficult is 笛卡尔潜水员?
This experiment is rated as Beginner (Middle School). It takes approximately 15 minutes to complete.
What safety precautions are needed for 笛卡尔潜水员?
Key safety precautions include: No significant hazards.
What materials are needed for 笛卡尔潜水员?
The main materials required are: Plastic bottle (1L), Small plastic condiment packet, Water.
What results should I expect from 笛卡尔潜水员?
When squeezed, the air bubble in the packet compresses, the packet becomes denser than water and sinks. When released, the air expands, the packet becomes less dense and rises. This demonstrates Boyle's law (P↑ → V↓) in a tangible way.