Intro to Angular Motion (Rotating Bodies)

Explainer: Angular vs Linear Motion Quantities

I've found that the best way to introduce rotational motion concepts to students is to first explain how similar they are to the kinematics you learned back at the beginning of physics. Same equations. Similar symbols. And best of all, rotational problems are always one-dimensional! No more of that X & Y component clutter to worry about.

Units of Angular Velocity, Acceleration, & Displacement

In this video I explain the units of each of the variables (aka "quantities") you'll see in rotational motion and kinematics problems, and I work some examples of how to convert between the different units you'll see, especially for angular velocity (ω).

Vocab: Frequency in Angular Motion (Rotating Bodies)

Your professor might not do this, but there are a few out there who sometimes use the word "frequency" in place of "angular velocity" or "omega" (ω). In this video I just explain quickly what frequency means in this context, and I work a few conversion problems.

Right Hand Rule In Rotational Motion & Torque

In physics there are like at least 5 different right hand rules that I can think of off the top of my head. This video relates only to the one where you use your right hand to figure out whether a given torque, angular velocity, or angular acceleration is positive or negative.

Angular Quantities Are Vectors

This video explains something kind of non-intuitive: all these rotational quantities (ω, α, Τ) are vectors that point along the spin axis. Which direction along the spin axis? "Into the page" or "out of the page"? Just as the right hand rule!