1.3.a

Question 1

Biomechanics

Answer 1

the study of human movement and the effect of force and motion on sport performance

Question 2

Force

Answer 2

A push or pull that alters the state of motion of a body

Question 3

1. Newton law of inertia

Answer 3

A body continues in a state of rest or uniform velocity unless acted upon by an external or unbalanced force

Question 4

Inertia

Answer 4

the resistance of a body to change its state of motion. The greater the mass the greater the inertia

Question 5

2. Newtons law of acceleration

Answer 5

A body’s rate of change in momentum is proportional to the size of the force applied and acts in the same direction as the force applied
(Acceleration is proportional to force)

Question 6

Momentum

Answer 6

The quantity of motion

Question 7

3. Newtons law of reaction

Answer 7

For every action force applied to a body there is an equal and opposite reaction force

Question 8

Action force

Answer 8

generated and applied by the athlete to the ground or an object

Question 9

Reaction force

Answer 9

the equal and opposite force generated by the ground or object back to the athlete

Question 10

Velocity

Answer 10

= displacement : time taken
The rate of change in displacement