Biomechanics - Bewtons laws of motions Flashcards Preview

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Flashcards in Biomechanics - Bewtons laws of motions Deck (14)
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1
Q

What are Newton’s laws of motion

A

Law of inertia

Law of acceleration

Law of reaction

2
Q

What is inertia

A

The resistance of a body to change its state of motion

3
Q

Acceleration

A

Rate of change in velocity

4
Q

Reaction

A

For every force that is exerted, there is an equal and opposite force exerted by the second body on the first

5
Q

Types of motion

A
  • Linear
  • Angular
  • General
6
Q

Linear motion

A
  • Straight Line

- All body parts moving in the same direction at the same speed

7
Q

Angular motion

A

Swinging your arm back in a tennis serve

Circular or rotational movement

8
Q

General motion

A

A combination of linear and angular motion

9
Q

Weight

A

The gravitational pull that the earth exerts in a body

10
Q

Friction

A

The force that opposes the motion of two surfaces in contact

11
Q

Air resistance

A

The force that opposes the motion through the air

12
Q

Streamlining

A

The creation of smooth air flow around an aerodynamic shape to minimise air resistance

13
Q

Reliability

A

The extent to which an experiment, test or measuring procedure gives the same results after repeated trials.

14
Q

How to reduce effects of air resistance

A

Surface (clothing)
Shape
Mass

Design more efficient equipment in wind tunnels

Improve position on bike in wind tunnels