Stability and Strength of Objects and Structures

There are various strong and stable structures around humans. Among the examples that can be seen are the Pyramids in Egypt in the shape of a pyramid and the Igloo in the polar region in the shape of a hemisphere. In this chapter, students will learn more about the factors that affect the stability and strength of objects and structures as well as the importance of strong and stable structures.

12.1

Stability and Strength of Objects and Structures

Strong and stable structures are secure, firm and does not collapse or topple easily.

Stability of an Object and Structure

	The ability of objects and structures to remain or return to their original position

Factors Affecting the Stability of Objects and Structures

The height of the object

The lower the object, the more stable it is

Base area

The larger the base area, the more stable it is

The strength of objects and buildings is the ability of objects and buildings to withstand forces that will damage or change the shape of the structure of the objects and buildings.

Factors Affecting the Strength of Objects and Structures

Types of materials

1. Concrete

Concrete is stronger than wood. Concrete can be molded, does not burn, does not decay and does not rust

2. Steel

Steel is stronger than wood. Bridges made of steel are stronger than wooden bridges

Shape of structure

1. Tunnel

The tunnel is built with a curved shape to make it stronger

2. Dome

The hemispherical shape of the dome makes it strong and does not require pillars for support

The importance of strong and stable structures

Can be used for a long time
Low maintenance costs
Not easily damaged
Safe to use