In this video, Legos® are used to create possible molecular level models of a buffer. This is done to better understand how a buffer works and the components a buffer must contain in order to be effective.

Buffers

This video uses a series of examples and student-active segments to investigate the concepts of torque and equilibrium.

Torque

This video leads students through describing the motion of all points on a wobbly disk as a function of time. Properties of time independent rotation matrices are explored.

Rigid Body Kinematics

This video motivates the statistical mechanics approach through material structure and behavior. Entropy is introduced as a natural variable whose derivative with respect to energy is zero when the number of microstates is maximized.

What is Temperature?

This video determines the units of the differential quantity dx in terms of the units of x, and explores how integration and differentiation affect units.

Unit Analysis

This video introduces the concept of the vector, explores vector properties using physical intuition based on displacements, and discusses how to recognize when a physical quantity can be represented by a vector.

Vectors

This video takes a look at a smoke probe visualization of airflow over a model of an F16 aircraft. The visualization is created in the Wright Brothers Wind Tunnel. Prof. Dave Darmofal discusses how these visualizations are used in engineering.

Vector Fields

This video briefly reviews the simplifications and assumptions of the VSEPR model.

VSEPR

This video introduces students to stability of equilibria. A temperature example is explored using an energy argument, and then the typical linear stability analysis framework is introduced. This framework is applied in detail to analyze a pendulum.

Stability Analysis

This video describes the motion of two objects observed from two frames of reference: a rotating turntable, and the relatively stationary ground frame. The centripetal and Coriolis accelerations that arise in rotating frames of reference are explored.

Rotating Frames of Reference

The Chirality video is descriptive and informative. I like the visual examples and explanations. I am going to suggest this video to my Chem II students. Thank you for this excellent resource.

HS Chemistry Teacher

STEM Concept Videos

This video begins with observations of spontaneous processes from daily life and then connects the idea of spontaneity to entropy.

Entropy

This video discusses negative and positive feedback loops, how they tie into the body’s mechanism of internal regulation, and what happens when these mechanisms fail.

Feedback Loops

In this video, four scenarios are presented wherein the heat transfer between a pan and its handle, and between the handle and the room are constrained in a variety of ways, and the resultant temperature profiles are discussed.

Equilibrium vs. Steady State

In this video, students see how the components in the regenerative receiver circuit work together to dampen unwanted frequencies, while selectively amplifying and demodulating a desired AM signal.

Radio Receivers

This video will show students how to calculate the moments of a distribution and how moments can help us understand something about a distribution.

Moments of Distributions

This video uses robotics as a context for describing rigid body motion and equations of constraint. Illustrative video clips are drawn from the robotics competition in MIT’s 2.007 "Design and Manufacturing" course.

Motion

This video presents students with a problem solving process that they might find useful in solving ill defined problems. Students see how this problem solving process was used by MIT graduate students to complete a class project.

Problem Solving Process

This video encourages students to access their knowledge of kinetic theory and apply it to the real world problem of light bulb blackening.

Kinetic Theory

This video explains the concept of "latent heat" and how it can dramatically reduce heating and cooling costs in homes and skyscrapers alike.

Latent Heat

Prof. Ben Brubaker defines and explores the properties of the linear approximation of a function at a point. The linear approximation is then applied to solve a simple differential equation encountered in chemical kinetics.

Linear Approximations

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