This podcast introduces the formula for calculating rate of heat transfer through conduction, with an example problem to help demonstrate how the formula is used.
Thursday, November 17, 2011
This podcast deals with the similarities between simple harmonic motion and uniform circular motion. Problem-solving is discussed, using functions for position, velocity, and acceleration of a simple harmonic oscillator.
Wednesday, November 16, 2011
This podcast is a very quick review of how to use energy-conservation ideas when an object is rotating during its motion.
Thursday, October 27, 2011
Wednesday, October 19, 2011
This podcast is a very quick review of how to use energy-conservation ideas to solve motion problems where no friction is involved, and also what extra thinking to use when friction is involved.
This podcast is intended to review some conceptual ideas related to work, energy, and momentum. It just consists of 8 conceptual questions, with answers discussed.
Tuesday, October 11, 2011
Monday, August 29, 2011
This podcast is a very quick review of projectile ideas, including the differences between x- and y- components of motion, how to solve problems when projectiles are launched horizontally, and what additional thinking is involved if a projectile is launched at an initial angle.
Sunday, August 28, 2011
This podcast introduces you to how to add vectors graphically, and also how to use basic trig to solve for resultants and vector components. (Only deals with parallel and perpendicular pairs of vectors.)
Tuesday, August 16, 2011
This podcast introduces concepts of displacement, velocity, and acceleration. Basic calculations are discussed, as well as the meanings of positive and negative values for those three quantities in straight-line motion situations.
Monday, May 16, 2011
This podcast introduces how to perform derivatives for some more complicated functions, specifically how to use the chain rule for derivatives of composite functions, and how to use the product rule for the derivative of the product of two functions.
This podcast introduces the concept of derivatives, at a depth appropriate for students beginning a calculus-based physics course. This includes a brief description of what a derivative means, and how to find derivatives using the power rule.
Friday, May 6, 2011
This podcast is a very quick review of how to use PV (pressure-volume) diagrams to find temperature at a state, work done during a process or cycle, and change in internal energy during a process or cycle.
This podcast is a very quick review of heat and work as ways to transfer energy into or out of a system, along with rules for when heat and work should be treated as positives or negatives when problem-solving.
Tuesday, May 3, 2011
Monday, May 2, 2011
Thursday, April 21, 2011
The podcast is a very quick review of the meaning of capacitance, the factors that affect the capacitance of a parallel-plate capacitor, and rules for capacitors in series and parallel.
This podcast is a very quick review of curved mirrors, including how to draw ray diagrams, what types of images are formed by different curved mirror situations, and how to perform calculations related to curved mirror image formation.
Wednesday, April 20, 2011
This podcast is a quick review of what electric potential means, and also how potential is related to electric field strength. A very brief discussion is also included that reviews how to calculate potential due to a collection of point charges.
Tuesday, April 19, 2011
This podcast is a very quick review of Faraday's law of induction, discussing the meaning and calculation of magnetic flux, and the various ways in which a change in flux can happen to lead to induced emf. An added 2 minutes at the end of this podcast reviews how calculations are different in a calculus-based application of Faraday's law.
This podcast is a very quick review of how to perform several different calculations related to magnetic field. (It does NOT review directional aspects of magnetic forces, such as the right-hand rule.) Long straight current-carrying wires are discussed, from the perspective of B-fields they create and how they are affected by external B-fields. The effects of a B-field on a moving charge's motion are also reviewed.
This podcast is a very quick review of the differences between series and parallel circuits in terms of the way current flows, and in terms of the equivalent resistance of the circuit.
Monday, April 18, 2011
This podcast is a very quick review of the meanings of and relationships between basic electrical quantities (current, voltage, resistance, and power), and also a very quick review of the factors about a wire that affect its resistance.
Friday, April 15, 2011
This podcast is a very quick review of the effects of electric field, and also of how to calculate electric field due to multiple point charges.
Wednesday, April 13, 2011
Friday, April 1, 2011
This podcast introduces Ampere's Law, a powerful formula allowing the calculation of magnetic fields due to currents for certain symmetric situations. Comparisons are made to Gauss' Law in an attempt to remind students of the power of symmetry when calculating fields, and example problems are also included.
Thursday, March 3, 2011
This podcast introduces concepts related to RC circuits - circuits with a resistor and capacitor in series with a voltage source. Intended to intro the ideas to students who have already learned capacitor ideas and are in the midst of studying electric circuits.
Wednesday, February 23, 2011
This podcast reviews rules for determining directions in magnetic field problems. Topics include the right-hand rule for forces on currents and charges, right-hand rule for B-field created by a current, and Lenz's law.
Wednesday, January 5, 2011
This podcast is a review of how to use vector addition ideas, along with Coulomb's law, to find the net force acting on a charge when it is pushed/pulled by multiple electric forces.