Stability science form 2
description
Transcript of Stability science form 2
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STABILITYSTABILITY
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In this unit, a student is able to state :
what stability is
factors that affect stability
applications of stability in daily life
INTRODUCTION
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Ability of an object to maintain its original position
STABILITY
STABLE NOT STABLE
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Gravity affects every part of an object.
Centre of gravity (equilibrium point)
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the point at which the whole weight of
the object seems to act
Centre of gravity
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Centre of gravity
Regular shaped objects : exactly in the middle
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Centre of gravity
Irregular shaped objects : at the side with greater mass
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Centre of gravity
• An object can be balanced at its centre of gravity
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Let’s do an activity!
How to find point of equilibirum?
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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
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Base Area
the larger the base area, the more stable it is
Factors affecting stability
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Lowering its centre of gravity
Increasing its base area
Improving the stability of objects
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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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~THE END~