Physics, let alone all the sciences put together, covers such a vast range of knowledge that it's useful to identify a small number of "big ideas" that link across a greater number of concepts. And energy is undoubtedly the biggest of these "big ideas". When it comes to revising energy, the breadth of its impact … Continue reading Energy: the biggest “big idea”
Energy Summary
There are several posts about energy on physbang. You are welcome to explore these posts at your leisure but this one draws some of them together into a logical sequence: it also links to an online worksheet for practising kinetic energy calculations. Although explanations often start by talking about different types of energy, I feel … Continue reading Energy Summary
Energy Stores and Transfers
Energy is the property of a system that enables it to do work. This is often stated bluntly as; “energy makes thing work”. There is a fundamental law in physics, which states that the total amount of energy in a system always remains constant. Energy cannot be created and it cannot be destroyed. Energy can, … Continue reading Energy Stores and Transfers
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