Lesson Plan

Define rotational motion, circular motion, and spin, and give examples of each

Relate arc length, radius of curvature, and angle of rotation using Δθ = Δs/r

Convert among radians, revolutions, and degrees (1 rev = 2π rad = 360°)

Define angular velocity ω = Δθ/Δt and relate it to tangential velocity using v = rω

Solve problems involving angle of rotation, angular velocity, and tangential velocity

6.1

"Rotational motion is the circular motion of an object about an axis of rotation." "The angle of rotation $\Delta\theta$ is the arc length divided by the radius of curvature." "1 revolution = $2\pi$ rad = 360°." "The equation $v = r\omega$ says that the tangential speed v is proportional to the distance r from the center of rotation."