Biomechanics and Newton's Laws of Motion

These flashcards cover key vocabulary and definitions related to biomechanics and Newton's laws of motion, important for understanding movement skills.

Newton's 1st Law of Motion

An object will remain at rest or in constant linear motion unless acted upon by an external force.

Inertia

The resistance of an object to a change in its state of motion, directly proportional to its mass.

Newton's 2nd Law of Motion

Acceleration is proportional to the force applied to an object and inversely proportional to its mass, expressed as F=MA.

Force (F)

An interaction that causes an object to change its state of motion, measured in Newtons (N).

Acceleration (A)

The rate of change of velocity of an object, caused by the application of force.

Mass

A measure of the amount of matter in an object, typically measured in kilograms.

Newton's 3rd Law of Motion

For every action, there is an equal and opposite reaction.

Ground Reaction Forces (GRF)

The force exerted by the ground on a body in contact with it, crucial for movement.

Momentum

The product of the mass and velocity of an object, conserved in a closed system during collisions.

Mechanical Advantage

The ratio of the output force to the input force in a lever system, determined by the distances from the fulcrum.