Unit 3 AOS 1: Biomechanics Review Flashcards

These flashcards cover key terms and concepts from biomechanics discussed in Unit 3 AOS 1, aiding in exam preparation.

Biomechanics

The study of motion and the effects of forces relative to the body.

Inertia

The tendency of an object to resist changes in its state of motion.

Torque

The turning effect produced by an eccentric force applied around a pivot or axis.

Impulse

The change in momentum of an object, calculated as the product of force and time.

Momentum

The quantity of motion an object has; calculated as the product of mass and velocity.

Angular momentum

A measure of the quantity of rotation of a body around an axis.

Linear motion

Movement that occurs along a straight or curved path without rotation.

Angular motion

Movement of an object around a central point or axis.

Force

A push or pull that can change the motion of an object.

Mechanical advantage

The ratio of the output force to the input force in a system.

Equilibrium

A state of balance where all acting forces are equal.

External force

A force that arises from the interaction between the body and the environment.

Internal force

Forces generated by the structures of the body to produce movement.

Speed

The rate at which an object covers distance.

Velocity

Speed in a specific direction.

Acceleration

The rate of change of velocity.

Centre of gravity

The point where the entire weight of a body can be considered to act.

Friction

The resistance that one surface or object encounters when moving over another.

Newton's first law

An object in motion stays in motion unless acted upon by an external force.

Newton's second law

The acceleration of an object is dependent on the mass of the object and the amount of force applied.

Newton's third law

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