Heating Zinc Oxide

 One of the interesting things about heating Zinc Oxide is how it changes colour to yellow when hot and reverts back to white when cold. The A-Level students found it harder to determine whether Zinc should be a transition metal or not.

Spirometer

Using the @Pascoscientific spirometer and Capstone to measure my students' and my breathing rate and vital capacity. This is so much easier than using the box spirometer and chart recorder. It seems odd to do a biology experiment in Medical Physics. Still, it is interesting to see how much Physics there is in making and designing devices to measure biological systems.

 

Crushing Can

Crushing a can by the removal of air. An oldie but a goodie. The students didn't realise air and air pressure is as powerful as it is.

Engineering Physics

 Students find out that Engineering Physics is fun, looking at gyros, the drinking birds, using a manometer, water held in a glass by paper and a firestarter.

Gay-Lussacs Law

Gay-Lussac's Law: Investigating the relationship between increasing pressure as the temperature increases for a fixed volume of Gas using the @Pascoscientific pressure sensor and the wireless temperature sensor. I tried this with a Bordon gauge but didn't see enough movement. In 1802, he discovered that when a gas is heated, its volume increases at a constant rate. He also found that when a gas is compressed, its temperature also increases at a constant rate. These two discoveries led to Gay-Lussac's Law of Pressure-Temperature, which states that the pressure of a gas is directly proportional to its temperature.

Sunday is for ... drilling out bungs

 Sunday is for ... drilling out bungs and other prep work and for filming

Coloured liquids showing density

Adding different amounts of sugar to water and dying it. Put the most dense at the bottom and then carefully pour the less dense liquids on top one at a time and we get pretty layers which diffuse together over time