In this video Paul Andersen explains that the angular momentum of a system will be conserved as long as there is no net external torque. Both point objects and extended objects are covered along with several examples.

In this video Paul Andersen explains how the kinetic energy of an object if due to the motion of an object. Objects can have kinetic energy but they cannot have potential energy unless they are part of a system. He then explains how to...

In this video Paul Andersen explains how the angular momentum of an object if a product of the rotational inertia and the angular velocity. The rotational inertia depends on the mass, radius and shape of the rotating objects. A sample...

Bridges... bridges, bridges, bridges. We talk a lot about bridges in Physics. Why? Because there is A LOT of practical physics that can be learned from the planning and construction of them. In this episode of Crash Course Physics, Shini...

In the third act of "Swan Lake", the Black Swan pulls off a seemingly endless series of turns, bobbing up and down on one pointed foot and spinning around and around and around thirty-two times. How is this move - which is called a...

In this video Paul Andersen explains how a rotating system will have several quantities; including torque, angular velocity, angular acceleration and angular momentum. Each of these quantities have a vector property that can be...

In this video Paul Andersen explains how the angular momentum of a system can be calculated by determining the angular momentum of all individual objects within the system. An inquiry activity using a gyroscope is also included.

In this video Paul Andersen explains rotating object have angular momentum. The angular momentum of a point object is the product of the distant from the center of rotation and the linear momentum. The angular momentum of an extended...

In this video Paul Andersen explains how a net torque acting on an object will create rotational motion. This motion can be described by the angular displacement, angular velocity, and angular acceleration. The linear velocity can be...

In this video Paul Andersen explains how the change in angular momentum is equal to the torque applied over a given time. A sample problem and inquiry activity are included.

Did you know that, at a certain point on a moving wheel... there's no motion? I mean, kinda... it's all relative, right? Prepare to have your mind blown in this episode of Crash Course Physics where Shini delves into the world of...

A neutron star spinning at 1 revolution per second is on the edge of tearing itself apart. This lesson breaks down the physics of rotational stability, showing how gravity and circular motion determine the star's minimum mass.

This video explains the concept of rotational kinetic energy stored in a flywheel, demonstrating its application in vehicles like trucks for efficient energy usage

This content provides a step-by-step solution to a physics numerical problem involving a decelerating flywheel. It calculates the constant angular acceleration, the total revolutions before stopping, and both the tangential and net...

This video presents a challenging physics problem about shooting an arrow through a spinning wheel without hitting any spokes, requiring the application of rotational dynamics principles.

This video explains how to calculate angular displacement and other rotational kinematic variables for a rotating wheel, illustrating concepts like angular acceleration and revolutions.

This content explains how to calculate the rotational inertia and angular momentum of a rigid structure composed of a circular hoop and a square frame made of thin rods. It demonstrates the application of the parallel-axis theorem to...

This content solves a multi-part physics problem involving a solid ball that first rolls smoothly along a horizontal path, then up a ramp onto a plateau, and finally launches horizontally to land at a specific distance. It demonstrates...

This content delves into the physics of a falling cylindrical chimney, treating it as a thin rod rotating about its base. It uses energy conservation to determine the angular velocity and subsequently calculates the radial and tangential...

Rolling as Rotation and Translation This content explores rolling motion without slipping, a combination of translational and rotational motion. It explains how the center of an object moves linearly while the object simultaneously...

This content explains how to calculate the kinetic energy of a rotating body, introducing the concept of rotational inertia (also known as moment of inertia). It clarifies that rotational inertia depends on both the mass and its...

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 content introduces the Law of Conservation of Angular Momentum, stating that if the net external torque on a system is zero, its angular momentum (L) remains constant. It draws a parallel with the conservation of linear momentum and...

This content defines the total angular momentum (L) of a rigid body as the vector sum of the angular momenta of its constituent particles. It then extends Newton's Second Law to rotational motion, stating that the net external torque on...