Wednesday 23 June 2021
Simple Harmonic Motion
A @pascoscientific force sensor and an Ultrasonic sensor working together on a long spring to show forces and distance, velocity and accelerator in simple harmonic motion for A level physics students - all online. #iteachphysics #Physics
Monday 21 June 2021
US birds have been getting smaller, with longer wings
US birds have been getting smaller, with longer wings giving rise to the idea of earlier and longer bird migrations, studies have shown over the past 40 years. https://myrenewableenergy.org/News.html #ClimateEmergency #ClimateCrisis #climatechange
Summer Solstice
#SummerSolstice Explaining the angle of the Earth and the journey around the sun to create the solstice Longest/shortest day using a ball and a torch. Holding the @esri "Earth" the students got the idea of what is going on.
Thursday 17 June 2021
Going Green Podcast #5 Lithium Power
Lithium is our way out for power. Lithium Batteries are made from Lithium Carbonate and there are huge deposits in Cornwall and Scotland. The Cornish reserves give us 260mg per litre flowing at a rate of 40-60 litres per second. But we know that mining is environmentally costly. The World's highest grade Lithium in Geothermal waters gives us a low environmental footprint that's enough for a phone battery every few seconds
The Demand is soaring for batteries for renewables. At the moment most of the Lithium comes from Australia, Chile and Argentina but is expensive and unfriendly to extract and uses loads of water, Cornwall may save the World. To give some idea of the amounts needed for cars the Tesla uses 12kg of Lithium per car and we know that the demand is increasing exponentially.
Clean Air Day
#CleanAirDay2021 Out with some of my students measuring the Air Pollution in and around my house. Using The PocketLab Air to measure the Air Quality
Friday 11 June 2021
Friday 21 May 2021
Charles Law
#Physics Charles Law done properly with a Bourdon Gauge to measure the pressure going up from 1 x10^5 Pascals to 1.3x10^5 Pascals As the temps rises so does the pressure #iteachphysics
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...