Physics, Algebra, Geometry, Calculus
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In motion problems you can use the truth, but you can also sometimes use the principle of conservation of energy, and it is often simpler. In a closed system, energy will not be created or destroyed, …
Continue Reading about Using Conservation of Energy for Motion Problems →
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The less wise of a group of monks, after hearing the equation x-x0=v0xt and rushing away from the physics lecture, thought that if they gave building blocks a simple push they would continue moving …
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Richard Feynman pioneered the field of Quantum Electrodynamics and won the Nobel Prize in physics. He went to school at MIT and Princeton and went on to later teach at Caltech. Feynman also traveled …
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If you pull on a spring like a slinky it’s going to be pretty easy to stretch it, but if the spring is something more like that from a car’s suspension, it will be more difficult– the difficulty in …
Continue Reading about Springs – Kinetic Energy & Potential Energy →
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Somewhat similarly to friction, air resistance also acts as a retarding force. The real world is not the same as idealized beginning physics situations; for example, projectiles will not follow the …
Continue Reading about Air resistance and Levels of Detail in Physics →
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If there are 1000 parts for a space shuttle and each of them has a 99.9% chance of working, then the chances for no malfunction at all is only about 37%. By multiplying .999 by itself 1000 times …
Continue Reading about Rocket Explosions, Probability, and Compound Interest →