Angular momentum is a property of rotating objects that depends on both the mass and distribution of mass within the object.
What is the formula for angular momentum?
The formula for angular momentum is L = Iω, where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.
What is the SI unit of angular momentum?
The SI unit of angular momentum is kilogram meter squared per second (kg·m²/s).
How does angular momentum change when the moment of inertia increases?
When the moment of inertia increases, the angular momentum of a rotating object also increases.
How does angular momentum change when the angular velocity increases?
When the angular velocity increases, the angular momentum of a rotating object also increases.
What is the conservation of angular momentum?
The conservation of angular momentum states that the total angular momentum of a system remains constant if no external torques act on the system.
What happens to the angular velocity when an ice skater pulls their arms inward?
When an ice skater pulls their arms inward, their moment of inertia decreases, causing their angular velocity to increase due to the conservation of angular momentum.
What is the relationship between angular momentum and linear momentum?
Angular momentum is related to linear momentum through the moment of inertia and the radius.
What is the direction of angular momentum in a rotating object?
The direction of angular momentum in a rotating object is perpendicular to the plane of rotation and follows the right-hand rule.
What is the angular momentum of a stationary object?
The angular momentum of a stationary object is zero.
What is the relationship between torque and angular momentum?
Torque is the rate of change of angular momentum.
Can angular momentum be negative?
Yes, angular momentum can be negative. The direction of angular momentum determines its sign.
What is the principle of conservation of angular momentum?
The principle of conservation of angular momentum states that the total angular momentum of a system remains constant in the absence of external torques.
Which quantity determines the resistance to changes in angular motion?
The moment of inertia determines the resistance to changes in angular motion.
What is the angular momentum of a rotating object with a moment of inertia of 2 kg·m² and an angular velocity of 3 rad/s?