Page 207 - SCIENCE DLP T6 SK (SEMAKAN 2017)
P. 207

Strength of Objects and Structures

             Chua and his father have just finished building a rabbit cage.




                                                                            What does the
             Father, why did                                                strength of objects
             we use steel                                                   and structures mean?
             rods for the
             cage pillars?



                                                             We used steel rods so
                                                             that the structure of the
                                                             cage is stronger and can
                                                             last longer.

            The strength of objects and structures is the ability of the objects
            and structures to withstand a force that could damage or change
            their structural shapes.

                              What are the types of materials used to
                              ensure the strength of built structures?



             Factors Affecting the Strength of Objects

             and Structures

             Structures such as buildings are built using various types of materials such as
             concrete, steel, plastic, and wood to ensure their structural strength. Different
             materials have different strength.


                                                                               Concrete is a
                                                                               material that
                                                                               is strong, not
              Plastic is a material                                            flammable,
              that is light and easy                                           and does not
              to shape.                                                        rust or rot.




                                                                                 Wood is strong,
                                                                                 hard, and easy
                                                                                 to cut according
                             Steel is a strong and                               to size.
                             durable metal.

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