This podcast explains how to examine forces and torques while an object is rolling. 

Arapahoe High School Physics Podcasts

Forces During Rolling (Level: APC)

This podcast explains how to evaluate definite integrals at given limits of integration, and how this idea relates to finding the area under the curve when a function is graphed.

Definite Integrals (Level: APC)

This podcast introduces integrals with the idea "un-doing" a derivative, and then works several examples based on the reverse of the power rule.

Indefinite Integrals (Level: APC)

This podcast explains how to apply your understanding of derivatives to the problem of finding the maximum or minimum value of a function.

Derivatives and Max/Min (Level: APC)

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.

Chain Rule and Product Rule (Level: APC)

This podcast introduces common derivatives that can't be performed with the power rule, such as derivatives of some trigonometric, exponential, and logarithmic functions.

Other Common Derivatives (Level: APC)

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.

Derivatives and Power Rule (Level: APC)

This podcast explains standing waves on strings, including an explanation for how to calculate which frequencies of vibration will 'work' to cause a certain string to resonate at all of its different harmonic frequencies.

Waves on Strings (Levels: Intro, APB)

This podcast introduces the idea of static equilibrium, once students are already familiar with torque concepts.

Static Equilibrium (Levels: Intro, APB, APC)

This podcast describes several sound wave properties, and introduces the sound wave phenomena of Doppler Effect and Beat Frequency. Simple calculations are also briefly discussed. 

Intro to Sound Waves (Levels: Intro, APB)

This podcast explains what torque is, and how to calculate it.  Newton's 2nd Law is also revisited, from a rotational perspective.

Torque & Newton's 2nd Law for Rotation (Level: APC)

This podcast is a quick review of Gauss' Law, including conductors in electrostatic equilibrium, E-field due to spherical conductors & non-conductors, E-field due to sheets of charge, and E-field due to lines of charge.

Review Blast: Gauss' Law (Level: APC)

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.

Thermal Conduction Problems (Level: APB)

This podcast explains the definition of heat, and how it differs from internal energy. It also explains conduction, convection, and radiation as the three methods of heat transfer.

Heat as Energy Transfer (Level: APB)

This podcast discusses calculations for the linear and volume expansion of objects when heated.

Thermal Expansion (Level: APB)

Podcasts created to aid all levels of Mr. Jeff Smith's physics classes at Arapahoe High School, including content appropriate for Intro Physics, AP Physics B, and AP Physics C students.