Physics Screencasts - How to Videos for AP Physics

Below are links to specific “How To” videos that are relevant to AP Physics, and are on my class blog. These show how to think about certain topics, and how to do certain problems. It has a voice-over and screencast from my tablet computer, so it is similar to being in class as we model how to do certain problems. 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
http://docvphysics.blogspot.com/2009/12/how-to-start-science-research-in-high.html


Mechanics

Air Friction – the math
http://docvphysics.blogspot.com/2009/10/how-to-deal-with-air-friction.html

Binary Orbits
http://docvphysics.blogspot.com/2009/12/how-to-find-basics-of-binary-orbits.html

Derivatives! What are they and how to do them.
http://docvphysics.blogspot.com/2009/10/how-to-define-and-find-derivatives.html

Gravitational Potential Energy and Space Launches
http://docvphysics.blogspot.com/2009/12/how-to-find-gravitational-u-and-basics.html

Momentum Conservation – Why?
http://docvphysics.blogspot.com/2010/02/why-is-momentum-conserved-for-colliding.html

Moment of Inertia Using the Integral – Disks
http://docvphysics.blogspot.com/2010/04/how-to-find-moment-of-inertia-for-solid.html

Moment of Inertia Using the Integral – Sticks
http://docvphysics.blogspot.com/2010/04/how-to-calculate-moments-of-inertia.html

Parallel Axis Theorem (finding moments of inertia)
http://docvphysics.blogspot.com/2010/03/how-to-use-parallel-axis-theorem-to.html

Pendulum: Simple Harmonic Motion for small angles
http://docvphysics.blogspot.com/2010/04/how-to-get-simple-harmonic-motion.html

Potential Wells
http://docvphysics.blogspot.com/2009/12/how-to-interpret-potential-wells.html

Quantum Numbers: Using Simple Harmonic Motion to help see where these come from
http://docvphysics.blogspot.com/2010/04/where-do-those-quantum-numbers-come.html

Rotations: Both Linear and Rotational Motion Simultaneously
http://docvphysics.blogspot.com/2010/03/how-to-handle-rotations-and-linear.html

Rotations: Collisions and Conservation of Angular Momentum
http://docvphysics.blogspot.com/2010/03/how-to-apply-conservation-of-angular.html

Rotations: NON-Constant Acceleration
http://docvphysics.blogspot.com/2010/03/how-to-do-rotational-motion-for.html

Simple Harmonic Motion: General Derivation of sine, cosine solutions
http://docvphysics.blogspot.com/2010/03/how-to-find-solutions-for-simple.html

Simple Harmonic Motion: Solving with specific initial conditions using phase angle
http://docvphysics.blogspot.com/2010/03/how-to-solve-simple-harmonic-motion.html

Special Relativity – mass and energy, where E = mc2 comes from
http://docvphysics.blogspot.com/2009/12/how-to-play-einstein-for-day-mass-and.html

Tension problems with systems of objects: http://docvphysics.blogspot.com/2009/10/how-to-do-tension-problems.html



E&M

Ampere’s law applications
http://docvphysics.blogspot.com/2010/03/how-to-apply-amperes-law.html

Capacitance – how to find capacitance for the 3 types of capacitors
http://docvphysics.blogspot.com/2009/12/how-to-find-capacitance-for-each-type.html

Capacitor Circuits – How to find stored charge
http://docvphysics.blogspot.com/2009/12/how-to-find-charge-on-capacitors-in.html

Electric Circuit analysis
http://docvphysics.blogspot.com/2009/11/how-to-analyze-resistor-circuits.html

Electromagnetic Induction – how Induced Currents turn on (includes circulating E-field)
http://docvphysics.blogspot.com/2010/04/how-to-find-circulating-induced.html

Faraday’s law – Changing area with constant B-field
http://docvphysics.blogspot.com/2010/04/how-to-do-faradays-law-for-changing.html

Faraday’s law – Changing B-field with constant area
http://docvphysics.blogspot.com/2010/04/how-to-use-faradays-law-for-cases-where.html

Gauss’s law with conductors
http://docvphysics.blogspot.com/2009/10/how-to-do-gausss-law-with-conducting.html

Gauss’s law with NON-conductors: charge density
http://docvphysics.blogspot.com/2009/10/how-to-do-gausss-law-with-non.html

Gauss’s law with NON-uniform charge densities
http://docvphysics.blogspot.com/2010/04/how-to-do-gausss-law-with-non-uniform.html

Integration of E-fields to get Potential
http://docvphysics.blogspot.com/2009/11/how-to-integrate-and-find-electric.html

LC Circuit – similar to simple harmonic motion
http://docvphysics.blogspot.com/2010/04/how-to-do-math-of-lc-circuits.html

Magnetic Flux – Rectangular loop next to straight wire with current
http://docvphysics.blogspot.com/2010/04/how-to-find-magnetic-flux-straight-wire.html

Magnetic force between two current carrying wires
http://docvphysics.blogspot.com/2010/03/how-to-find-magnetic-forces-between.html

Mass Spectrometers and Velocity Selectors – magnetic forces, F = qv x B
http://docvphysics.blogspot.com/2010/04/how-to-think-about-mass-spectrometers.html

Point Charge Systems – finding total electric fields and potentials
http://docvphysics.blogspot.com/2010/04/how-to-find-electric-fields-and.html

Projectile Motion of Electric Charges
http://docvphysics.blogspot.com/2010/04/how-to-do-electrical-projectiles.html

RC Circuits – Charging Capacitor (series RC)
http://docvphysics.blogspot.com/2009/12/how-to-solve-charging-rc-circuit.html

RC Circuits – Discharging Capacitor (series RC)
http://docvphysics.blogspot.com/2009/12/how-to-solve-discharging-rc-circuit.html

RC Circuits – Resistor and capacitor in parallel
http://docvphysics.blogspot.com/2010/01/how-to-do-rc-circuit-with-r-and-c-in.html

RL Circuits – Current as functions of time
http://docvphysics.blogspot.com/2010/04/how-to-analyze-rl-circuits.html

My Class Blog

At the start of the school year, I started a separate blog specifically for my physics classes. It will be a work in progress, of course, with one aspect being a variety of 'how to' videos for numerous physics problems and topics. The latest, for example, is 'how to do multi-body systems with tension,' which can be confusing to students who are first exposed to such problems. The videos are actually screencasts with voice, made with ScreenToaster, which I recommend to all teachers. This online tool, along with a tablet computer, is truly a powerful combination for producing useful presentations that can be embedded online. I have already used such screencasts for students who miss a couple days due to illness or college visits, where examples done in class and then put online have allowed them to catch up immediately. I plan on making an online library with all sorts of examples, notes, and demonstrations so students can review at their leisure, whether it is just to remind themselves of what went on during class, or reviewing for a quizzam, or catching up when absent. It is also a good tool for parents to check out if they are interested in what happens in their child's class.