Wednesday 15 February 2023
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.
Monday 13 February 2023
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 12 February 2023
Saturday 11 February 2023
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
Friday 10 February 2023
Too much time on Practicals
It used to take ages to set up the circuit then, record some values and then graph them. I don't have time for this, so for the properties of resistors and bulbs and diodes the @pascoscientific voltage current sensor records everything in seconds and plots them. Perfect.
Thursday 9 February 2023
Whoosh Bottle
A-Level Chemistry one of the properties of Alcohol is that it burns - No far better get out the whoosh bottle and fill it with a bit of alcohol, shake and then ignite. Much more fun, and then lots of discussion on rockets.
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A level computing 12 Mark questions
Practice planning the 12-mark A-level computing questions. It is not just about getting the facts down but also about organizing them effect...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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Getting a classic set of results for the titration of NaOH and HCl is not that difficult but it is nice when we can get students to this ...
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Reactions with the different Alcohols to see the change in rate and water for comparison and why not to react with acids. An extra experime...