Search This Blog

Wednesday, April 28, 2010

List of How to Videos on the blog

Below are links to specific “How To” videos that are relevant to 3 and 4 Chem-Phys. These show how to access programs perhaps, or how to do certain problems. It has a voice-over and screencast from Doc V’s tablet computer, so it is similar to being in class as we model how to do certain problems or run certain programs. These can be useful if you were gone the day we covered the topic, or need more examples with explanations, or want to review things from class prior to quizzams.

Student Independent Science Research


Air Friction – the math

Binary Orbits

Derivatives! What are they and how to do them.

General Relativity and the Principle of Equivalence - Why does Gravity Bend Light?

Gravitational Potential Energy and Space Launches

Momentum Conservation – Why?

Momentum Conservation - How to do Inelastic Collisions

Moment of Inertia Using the Integral – Disks

Moment of Inertia Using the Integral – Sticks

Parallel Axis Theorem (finding moments of inertia)

Pendulum: Simple Harmonic Motion for small angles

Potential Wells

Quantum Numbers: Using Simple Harmonic Motion to help see where these come from

Rotations: Both Linear and Rotational Motion Simultaneously

Rotations: Collisions and Conservation of Angular Momentum

Rotations: NON-Constant Acceleration

Simple Harmonic Motion: General Derivation of sine, cosine solutions

Simple Harmonic Motion: Solving with specific initial conditions using phase angle

Special Relativity – mass and energy, where E = mc2 comes from

Springs and Energy

Tension problems with rotating pulleys:

Tension problems with systems of objects:


Ammeters and Voltmeters - How they work

Ampere’s law applications

Capacitance – how to find capacitance for the 3 types of capacitors

Capacitor Circuits – How to find stored charge

Electric Circuit analysis

Electromagnetic Induction – how Induced Currents turn on (includes circulating E-field)

Faraday’s law – Changing area with constant B-field

Faraday’s law – Changing B-field with constant area

Gauss’s law with conductors

Gauss’s law with NON-conductors: charge density

Gauss’s law with NON-uniform charge densities

Integration of E-fields to get Potential

LC Circuit – similar to simple harmonic motion

Magnetic Flux – Rectangular loop next to straight wire with current

Magnetic force between two current carrying wires

Mass Spectrometers and Velocity Selectors – magnetic forces, F = qv x B

Point Charge Systems – finding total electric fields and potentials

Projectile Motion of Electric Charges

RC Circuits – Charging Capacitor (series RC)

RC Circuits – Discharging Capacitor (series RC)

RC Circuits – Resistor and capacitor in parallel

RL Circuits – Current as functions of time

Interactive Physics
Interactive Physics is software where you can design and create your own simulations; mostly for mechanics, but there are some E&M topics you can also work on. This is on school computers.

See how to access the radioactivity iLab:


  1. 3d bioprinting = Immortality = go to stars

  2. ...interstellar travel constant acceleration (Sun-Deneb: 1000g )... Earth...the 2 ships that will go formation flying for mutual assisting if there are problems...indestructible structures made of Hexapentas material, awaiting in airport the arrival of passengers... Day 1: zero-speed... THE SHIPS TAKEOFF►... navigation computer places on screen the spacecraft in the center of sphere...spherical\tridimensional\spatial Heading: Deneb... Antimatter rocket engines...ON... Here we go...goooooo!...1g...10g...100g...constant acceleration cruise: 1000g (9.8 kms/sec²)... Inside the living areas (the same as going submerged in water: constant acceleration downwards...less...constant thrust, constant acceleration, from water upwards)...the gravitational transformers, perfectly synchronized with the acceleration, running: 1000g constant acceleration toward the floor ↓↓(motors)↓↓...less...999g constant acceleration toward the ceiling ↑↑(gravitational transformers)↑ = 1g constant acceleration toward the floor↓... 8.5 hours: light-speed = 1c...the fusion reactor as an artificial sun illuminating the immense Vital Support Gardens to lowering, from their comfortable apartments, cheerful passage to the pool...the electromagnetic shield anti-radiation...antigravity fields generator run forward, working: light objects away from the path of the ship...and trajectory ship away from the heavy objects...superluminal-speed > 1c... 42.5 hours: reaches hyperluminal-speed = 5c... Day 508: Half Journey...1000 light years...high hyperluminal-speed = 1435.39c... OFF engines...a few minutes of weightlessness during maneuver...the ship rotates 180º around its axis...motors ON again and... ◄STARTS TO BRAKE... Day 1017 (2.79 years): End Path party...2000 light The forever young passage of the 1st Immortal Generation (3D Bioprinting...Telomerase...modified Biological Timers...) disembarks at destination: an extra-stellar planet which came errant to orbit of Deneb giant.