A satellite in elliptical orbit speeds up as it approaches the planet—thanks to angular momentum conservation. Learn how to calculate angular speed at perihelion using Kepler’s laws and orbital geometry.

This lesson explores the relationship between work done by torque and a body's rotational kinetic energy. It covers the application of the work-kinetic energy theorem for rotating bodies, explains how to calculate work done by constant...

This content walks through a multi-step physics problem involving a block sliding down a frictionless surface and undergoing an inelastic collision with a pivoted rod, causing the combined system to swing upwards. It demonstrates the...

This content analyzes the motion of a solid cylinder rolling down an inclined roof. It uses the conservation of energy to determine the angular speed as it leaves the roof and then applies projectile motion principles to calculate the...

Ever wonder why toast often lands butter-side down? This video explains the rotational motion of a falling object in free fall and calculates the angular speeds required for butter-side down landings

This content explains and solves a physics problem involving an inelastic collision in rotational motion. A uniform rod, pivoted at one end, collides with a putty ball that sticks to its end. The solution demonstrates how to calculate...

This content explores the relationship between linear and angular variables for a rigid body undergoing rotation with constant angular acceleration. It clarifies how concepts like linear speed and acceleration vary with radial distance,...

This video lesson introduces the fundamental concepts and variables used to describe rotational motion of rigid bodies. It draws parallels with linear motion to simplify understanding of angular position, displacement, velocity, and...

This content analyzes the motion of a bowling ball as it transitions from sliding to smooth rolling on a lane. It explains the role of kinetic friction in simultaneously causing linear deceleration and angular acceleration. The video...

This content analyzes the motion of a hollow sphere rolling without slipping up an incline. It demonstrates how to determine the initial rotational and translational kinetic energies from the total, calculate the initial speed of the...

Torque basics explained, in this video we quickly learn what is torque and how it is used with worked examples and gears to illustrate the principle in under 2 minutes.

This video will explain and illustrate how to describe and measure rotational motion.

My solutions to Free Response Question #3 from the 2017 AP Physics 1 Exam. Also included are my reflections on how to get more points on the exam.

This Quantitative/Qualitative Translation question also works as a part of the AP...

My solutions to Free Response Question #1 from the 2018 AP Physics 1 Exam. Also included are my reflections on how to get more points on the exam.

This Short Answer question also works as a part of the AP Physics C: Mechanics...

Lesson 14 (Rotation and Torque) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this...

Analyzing the forces acting on a bucket of water which is revolving in a vertical circle.

What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.

A Level Physics - Doodle Science teaches you high school and College physics in a less boring way in almost no time!

Determining the force of tension in a string as a function of angular position for a ball moving in a vertical circle. A ball of mass m on the end of a string of length L moves in a vertical circle with a non-constant angular...

Angular momentum of a rigid body is demonstrated and derived. This is an AP Physics C: Mechanics topic. <br<br/>/>

Content Ti<br/>mes:
0:00<br/> The Demonstration
1:20 The Derivation
4:15 Newton’s Second Law

An honest look at vectors vs. scalars in rotational motion equations. Want Lecture Notes? <b<br/>r/>
Content Ti<br/>mes:
0:00<br/> All the equations
0:51 Common mistake
3:28 The correct equations