Category Archives: Unit 3

General Relativity Explained simply & visually

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Special Relativity simplified using no math. Einstein thought experiments

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oPhysics: Projectile Motion

Explore projectile motion by changing the initial conditions and watching the resulting changes in the projectile’s motion.

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Veritasium – Why Gravity is NOT a Force

The General Theory of Relativity tells us gravity is not a force, gravitational fields don’t exist. Objects tend to move on straight paths through curved spacetime.

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Fire in ZERO-G!!

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Electroboom – Why Use AC Instead of DC at Home??

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Electroboom – Brushed DC Motors and How to Drive Them

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Three Right Hand Rules of Electromagnetism – Magnetic Force

Teaching electricity and magnetism is complicated by the challenge that the magnetic forces are perpendicular to the motion of the particles and currents.  This requires a three-dimensional perspective which can introduce a variable of a “wrong” direction.  To prevent errors, … Continue reading

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Charges & fields observations

https://phet.colorado.edu/sims/html/charges-and-fields/latest/charges-and-fields_en.html This great learning object from PhET is great tool for discussion in the Physics classroom, as well as a powerful simulation of actual values. Here are three interesting screen shots that can be used as basis for discussions. This … Continue reading

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Professor Dave – Electric Charge and Electric Fields

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