Wine Glass Lab

Research Question: How does the amount of water in ml (50, 100, 150, 200, 250, 300) inside a wine glass affect the frequency measured using a reliable frequency meter application when?

Introduction: Energy is a fascinating concept which has been utilized for centuries by many scientists in order to help make sense of the world around us. It is the ability of an object to do work where work is the movement of an object against a force such as gravity. According to the law of conservation of energy, energy can not be created nor destroyed, it can only be transformed from one form to another. One of these forms being sound. Sound is simply defined as the noise produced when waves of pressure caused by the vibration of an object travel through

This ‘Glass Harp’ is comprised of a number of vertical wine glasses, however, for this investigation we will be using a single wine glass to produce sound by applying energy to the rim of the glass which will cause the physical properties of the glass to resonate. This motion is what we call the slip-stick motion which is the motion that occurs when two objects rub against each other. This will be done by rubbing and circling one finger around the rim causing it to vibrate and in turn, produce a natural frequency. The natural frequency, alongside the amplitude of a sound wave, play a role in determining whether the sound is actually audible and is within the human frequency range, the range being 20Hz to 20,000KHz. In this specific experiment, we will be investigating what the natural frequency of the wine glass is without any water inside in order to establish a cause and effect relationship between the different levels of water within the glass and the frequency that it

To control this, the water being used will be placed inside a room with a room temperature of 20°C for an hour to allow the temperature of the liquids to drop and remain at that temperature.

Apparatus List:
A wine glass.
An electric thermometer to measure the temperature of the water. (degrees celsius)
]The FFT properties application on a computer.
A professional microphone to detect the frequency from the sound that is produced.
A pop filter to ensure that the sound produced from the wine glass is clear, increasing the reliability of the experiment.
3,150 ml of distilled water.
Measuring cylinder to measure out the specific volume of water.
Dish soap to wash your hands with and remove most of the oil from your finger.