الغواص الديكارتي

إظهار انضغاطية الغاز وقانون بويل

Gas Laws Beginner (Middle School) 15 دقيقة ~$3,00

الهدف

بناء غواص ديكارتي لإظهار انضغاطية الغاز والعلاقة بين الضغط والطفو.

الخلفية

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.

تحذيرات السلامة

  • No significant hazards

المواد

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

المعدات

Scissors

الإجراء

1

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

2 دقيقة
2

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

3 دقيقة
3

Seal the bottle cap tightly.

1 دقيقة
4

Squeeze the bottle firmly. The diver should sink.

2 دقيقة
5

Release the squeeze. The diver should rise.

2 دقيقة
6

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

5 دقيقة

النتائج المتوقعة

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.

التنظيف

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

التفاصيل

الفئة
Gas Laws
الصعوبة
Beginner (Middle School)
المدة
15 دقيقة
التكلفة التقديرية
$3,00
الخطوات
6
المواد
3

مزيد من التجارب

اختبار CO₂ وماء الجير 20 min التحقق من قانون بويل 40 min الحجم المولي للغاز عند الظروف القياسية 35 min جمع غاز الهيدروجين 35 min ضغط البخار ونقطة الغليان 45 min قانون شارل مع بالون 30 min قياس حجم غاز مع المغنيسيوم 40 min مقارنة معدل الانتشار (قانون غراهام) 30 min

Frequently Asked Questions

What is the objective of الغواص الديكارتي?
بناء غواص ديكارتي لإظهار انضغاطية الغاز والعلاقة بين الضغط والطفو.
How difficult is الغواص الديكارتي?
This experiment is rated as Beginner (Middle School). It takes approximately 15 minutes to complete.
What safety precautions are needed for الغواص الديكارتي?
Key safety precautions include: No significant hazards.
What materials are needed for الغواص الديكارتي?
The main materials required are: Plastic bottle (1L), Small plastic condiment packet, Water.
What results should I expect from الغواص الديكارتي?
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.