Khan Academy
Khan Academy: Introduction to Exponential Decay
Introduction to Exponential Decay. Using the exponential decay formula to calculate k, calculating the mass of carbon-14 remaining after a given time, and calculating the time it takes to have a specific mass remaining. [9:19]
Khan Academy
Khan Academy: Photon Momentum
In this video, David (and surfer Dan) explain how to determine the momentum of a photon.
Khan Academy
Khan Academy: More Exponential Decay Examples
A few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. [7:22]
Khan Academy
Khan Academy: Quantum Numbers
The video lesson is from Khan Academy's physics library. The lesson provides a definition of orbital as region of high probability for finding electron, and how quantum numbers are used to describe the orbitals. Compares Bohr model...
Khan Academy
Khan Academy: Quantum Numbers for the First Four Shells
The video lesson is from Khan Academy's physics library. This lesson demonstrates the calculating of number of orbitals and number of electrons in different kinds of orbitals for n = 1 to 4. Also, the instructor explains that only two...
Science Friday Initiative
Science Friday: Spooky Science: Quantum Entanglement
In the quantum world, physics can get pretty strange.