Levers and equilbriums (from biomechanics glossary table)

Question 1

Lever

Answer 1

A rigid beam that rotates around an axis/fulcrum via the application of force.

Question 2

First class lever

Answer 2

The axis is the central component that separates the force and resistance.

Question 3

Second class lever

Answer 3

The resistance is the central component that separates the axis and the force.

Question 4

Third class lever

Answer 4

The force is the central component that separates the axis and resistance.

Question 5

Lever length

Answer 5

The length of the lever.

Question 6

Equilibrium

Answer 6

A state in which all opposing forces are balanced.

Question 7

Balance

Answer 7

The ability to control equilibrium

Question 8

Stability

Answer 8

The resistance to the disruption of equilibrium.

Question 9

Centre of gravity

Answer 9

An imaginary point in a body of matter where the total weight of the body may be thought to be concentrated.

Question 10

Line of gravity

Answer 10

An imaginary vertical line passing from the centre of gravity of an object down to the ground.

Question 11

Base of support

Answer 11

The area beneath an object or person that includes every point of contact that the object or person makes with the supporting surface.