B.2.1.1 (4) Applying Newton's law of motion

What factors affect the stability of an object according to the Principle of Stability?

Height of the center of mass, size of the base of support, position of the line of gravity, and mass.

What is the Principle of Summing Forces in relation to sports?

Your muscles create forces that act on joints, allowing for a wide range of movements.

What does the Principle of Impulse Direction signify in sports?

It refers to how to apply the right amount of force in the right direction to control the movement of a ball.

What is the formula for Momentum?

Momentum = mass x velocity.

What is the relationship between impulse and momentum?

A greater impulse results in greater momentum.

Define Torque in relation to angular motion.

Torque is a turning force that results in rotation when a force is applied away from the center of mass.

What influences the speed and control of an object's rotation?

moment of inertia.

What is angular momentum?

The quantity of rotation of a body, calculated as the product of moment of inertia and angular velocity.

What does the Conservation of Angular Momentum state?

In the absence of external forces, the angular momentum of a system remains constant.

How does moment of inertia affect rotation during diving?

If mass is closer to the axis, it is smaller and rotation is easier; if mass is spread out, it is larger and rotation is slower.

How do athletes control moment of inertia during acrobatics?

By tucking their body during rotation to increase spin speed or extending it before landing to slow rotation.

What is angular velocity?

The rate at which an object rotates around an axis, measured in degrees or radians per second.

What happens when an athlete increases their speed of movement in sports like cycling?

They increase the angular velocity, resulting in faster rotation or movement.