Welcome to The Arapahoe TrapHouse. The inaugural episode talks about game 5 of the NBA Finals as well as our advice column.

An introduction to the strengths of acids and bases for a first year chemistry class. Included are some example calculations.Av Brian Hatak and Chuck Lutz

How to work equilibrium problems when you only know initial concentrations.Av Brian Hatak and Chuck Lutz

An introduction to ratios in chemical equilibrium and how to calculate the value.Av Brian Hatak and Chuck Lutz

A short introduction into the shifting of chemical equilibrium.Av Brian Hatak and Chuck Lutz

Here is an introduction by Mr. Lutz on the basics of chemical equilibrium.Av Brian Hatak and Chuck Lutz

A look at how graphs can be used to explain and display what is happening during chemical reactions and equilibrium.Av Brian Hatak and Chuck Lutz

A discussion by Mr. Lutz about the rates of chemical reactions and how they can be useful in chemistry.Av Brian Hatak and Chuck Lutz

Instructions for naming acids and bases for a first year chemistry class.Av Brian Hatak and Chuck Lutz

A discussion on the calculations of pH and its uses for a first year chemistry class.Av Brian Hatak and Chuck Lutz

An introduction to the theories of acid and base chemistry. Included is a discussion of conjugate pairs.Av Brian Hatak and Chuck Lutz

A discussion of the properties of acids and bases.Av Brian Hatak and Chuck Lutz

An introduction to acid-base titrations for a first year chemistry class.Av Brian Hatak and Chuck Lutz

A lecture on the content for oxidation and reduction.Av Brian Hatak and Chuck Lutz

Information on entropy and free energy is presented here.Av Brian Hatak and Chuck Lutz

An introduction to Hess's Law calculations.Av Brian Hatak and Chuck Lutz

An introduction to thermochemistry for first year chemistry class.Av Brian Hatak and Chuck Lutz

Colligative properties of solutions for chemistry.Av Brian Hatak and Chuck Lutz

Screencast for calculations of solution concentrations.Av Brian Hatak and Chuck Lutz

The other gas laws for chemistry class.Av Brian Hatak and Chuck Lutz

How to use the ideal gas law for calculations in a first year chemistry class.Av Brian Hatak and Chuck Lutz

The gas laws as they apply to an introductory chemistry class.Av Brian Hatak and Chuck Lutz

An introduction to phase changes and the P-V diagrams that go along with them.Av Brian Hatak and Chuck Lutz

A podcast covering stoichiometry of limiting reactants and percent yields for a first year chemistry class.Av Brian Hatak and Chuck Lutz

This is the introductory podcast for Stoichiometry in a first-year chemistry class.Av Brian Hatak and Chuck Lutz

Here is a lesson on Lewis structures and covalent bonding.Av Brian Hatak and Chuck Lutz

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.Av Jeff Smith

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

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

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.Av Jeff Smith

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

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.Av Jeff Smith

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.Av Jeff Smith

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

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.Av Jeff Smith

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

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

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.Av Jeff Smith

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.Av Jeff Smith

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.Av Jeff Smith

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

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.Av Jeff Smith

This podcast explains how to think about the energy of a simple harmonic oscillator (specifically a mass-spring system), and also how to solve related problems.Av Jeff Smith

This podcast is a very quick review of how to use energy-conservation ideas when an object is rotating during its motion.Av Jeff Smith

This podcast introduces the concept of center of mass, both for a system of particles and for irregularly-shaped objects.Av Jeff Smith

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.Av Jeff Smith

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.Av Jeff Smith

This podcast introduces Potential Energy Curves, after students are already familiar with energy concepts such as kinetic and potential energies, and also E-conservation.Av Jeff Smith

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.Av Jeff Smith

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.)Av Jeff Smith