Biomechanical Principles Paper 2

Question 1

What are Newton’s 3 laws?

Answer 1

1. ) 1st Law of Inertia
2. ) 2nd Law of Acceleration (F = m x a)
3. ) 3rd Law of action/reaction

Question 2

Define linear motion.

Answer 2

Motion in a straight or curved line, with all body parts moving the same distance at the same speed in the same direction.

Question 3

What is angular motion?

Answer 3

Movement of a body part in a circular path around an axis.

Question 4

What does Newton’s 1st Law of Inertia state?

Answer 4

A force is required to change the state of motion.

Question 5

What’s does Newton’s 2nd Law of Acceleration (F = m x a) state?

Answer 5

The magnitude (size) and direction of the force determines the magnitude and direction of the acceleration.

Question 6

What does Newton’s third law of motion state?

Answer 6

For every action (force) there is an equal and opposite reaction (force).

Question 7

Force =

Answer 7

Mass x Acceleration

Question 8

What is angular motion.

Answer 8

Movement of a body part in a circular path around an axis.

Question 9

Speed =

Answer 9

Distance / Time

Question 10

What is the centre of mass?

Answer 10

This is the point of balance

Question 11

What is the line of gravity?

Answer 11

This is the line extending vertically downwards from the centre of mass.

Question 12

What is the base of support?

Answer 12

The larger the area, the greater the stability.