Biomechanical Principles Paper 2 Flashcards
What are Newton’s 3 laws?
- ) 1st Law of Inertia
- ) 2nd Law of Acceleration (F = m x a)
- ) 3rd Law of action/reaction
Define linear motion.
Motion in a straight or curved line, with all body parts moving the same distance at the same speed in the same direction.
What is angular motion?
Movement of a body part in a circular path around an axis.
What does Newton’s 1st Law of Inertia state?
A force is required to change the state of motion.
What’s does Newton’s 2nd Law of Acceleration (F = m x a) state?
The magnitude (size) and direction of the force determines the magnitude and direction of the acceleration.
What does Newton’s third law of motion state?
For every action (force) there is an equal and opposite reaction (force).
Force =
Mass x Acceleration
What is angular motion.
Movement of a body part in a circular path around an axis.
Speed =
Distance / Time
What is the centre of mass?
This is the point of balance
What is the line of gravity?
This is the line extending vertically downwards from the centre of mass.
What is the base of support?
The larger the area, the greater the stability.
