Learning Goal
Rotational Motion
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
"Angular acceleration $\vec{\alpha}$ is the rate of change of angular velocity."
"Keep in mind that, by convention, counterclockwise is the positive direction and clockwise is the negative direction."
"The kinematics of rotational motion describes the relationships between the angle of rotation, angular velocity, angular acceleration, and time."
"The angular version of force is torque $\vec{\tau}$, which is the turning effectiveness of a force."
"Torque is maximized by applying force perpendicular to the lever arm and at a point as far as possible from the pivot point or fulcrum. If torque is zero, angular acceleration is zero."
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"Angular acceleration $\vec{\alpha}$ is the rate of change of angular velocity."
"Keep in mind that, by convention, counterclockwise is the positive direction and clockwise is the negative direction."
"The kinematics of rotational motion describes the relationships between the angle of rotation, angular velocity, angular acceleration, and time."
"The angular version of force is torque $\vec{\tau}$, which is the turning effectiveness of a force."
"Torque is maximized by applying force perpendicular to the lever arm and at a point as far as possible from the pivot point or fulcrum. If torque is zero, angular acceleration is zero."
What you'll learn
- Define angular acceleration α = Δω/Δt and apply the counterclockwise-positive sign convention
- Relate tangential acceleration and angular acceleration using a = rα, and distinguish tangential from centripetal acceleration
- State the rotational kinematics equations as analogs of the linear equations and use them to solve constant-α problems
- Define torque and lever arm, and use τ = rF sinθ to compute torque
- Explain how to maximize torque and why zero net torque means zero angular acceleration
Slides
Step through the lesson, or watch it as a narrated video
Slides
In development
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