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- Investigation of Sound Propagation of a Mechanical Egg Timer under Normal Pressure and in a Vacuum
This experiment examines how the sound propagation of a mechanical egg timer behaves under normal pressure compared to an evacuated desiccator. The egg timer is triggered in both environments, and the perceived loudness as well as possible sound alterations are analyzed. This investigation provides insights into the acoustic properties of gases and their significance for … - The influence of a vacuum on the volume of a balloon
In this experiment, the influence of the ambient pressure on the volume of a balloon is investigated. A slightly inflated balloon is placed in a desiccator and the external pressure is reduced by evacuating the container with a vacuum pump. This causes the balloon to visibly expand. When the air flows back in, the balloon …Continue reading “The influence of a vacuum on the volume of a balloon”
- Determining the Speed of Light Using a Chocolate bar
The speed of light is a fundamental natural constant that can be measured with high accuracy. In this experiment, a microwave oven, a Chocolate bar and butter are used to visualize standing waves and calculate the speed of light. By …Continue reading “Determining the Speed of Light Using a Chocolate bar”
- The Electroscope – Detecting Charge with a Simple Setup
An electroscope is a simple instrument used to detect electrostatic charge. It is based on the principle that like charges repel each other. In this experiment, an electroscope is built using a jam jar, a copper wire, and aluminum foil. Frictional electricity4[generation …Continue reading “The Electroscope – Detecting Charge with a Simple Setup”
- Experiment on the Thermal Expansion of Gases Using a Glass Bottle with a sealing Coin
This experiment visually demonstrates the thermal expansion of gases. A glass bottle is first placed in a cold environment, causing the air inside to cool down. The bottle is then brought into a warmer room and heated with hands. A wet coin placed on the bottle’s opening starts to rattle due to the temperature increase. …