Stability science form 2

STABILITYSTABILITY

In this unit, a student is able to state :

what stability is

factors that affect stability

applications of stability in daily life

INTRODUCTION

Ability of an object to maintain its original position

STABILITY

STABLE NOT STABLE

Gravity affects every part of an object.

Centre of gravity (equilibrium point)

the point at which the whole weight of

the object seems to act

Centre of gravity

Centre of gravity

Regular shaped objects : exactly in the middle

Centre of gravity

Irregular shaped objects : at the side with greater mass

Centre of gravity

• An object can be balanced at its centre of gravity

Let’s do an activity!

How to find point of equilibirum?

Location of centre of gravity

Factors affecting stability

the lower the centre of gravity, the more stable it is

Shorter objects have a lower centre of gravity compared to taller ones 

Base Area

the larger the base area, the more stable it is

Factors affecting stability

Lowering its centre of gravity

Increasing its base area

Improving the stability of objects

Foundation of buildings Racing car Bottom of glass is thicker Tripod stand, conical flask Trucks with engine at the bottom

Applying the principle of stability

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