Transcription of TECHNOLOGY Grade 9 - Tegnologie
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TECHNOLOGY Grade 9 - Tegnologie
TECHNOLOGY . Grade 9. Ho rskool Gerrit Maritz CONTENTS. Types of Functions of Structural Properties of The design of What is Food Mechanical Control Belt Hydraulic and pneumatic Elektricity vs Electronics ..44. Elektronic Voltage and Conductors and Electronic Logic TECHNICAL 3-D Isomectric and Oblique Orthographic 1. Structures Types of Structures Natural and Manmade structures Structures are all around us, some are natural like eggshells, spider-webs, caves and trees and others are man-made like bridges, towers, houses, shopping bags and cups. Structures are further divided into three other groups namely frame, shell and mass structures: Frame Structures A frame structure is a structure made up of many rigid parts joined together to form a framework'. These different parts are called members. Shell Structures A shell structure is more enclosing than a frame structure - it surrounds and encloses something. Solid/mass Structures Solid structures rely heavily on solid construction such as masonry to support loads and to transfer these loads safely to the ground.
shells, caves, hollow tree trunks etc. Spanning a gap The most common structure fulfilling this function is a bridge. Bridges fulfills another function - supporting a load - ... Torsion: Is the name given to a turning or a twisting force. Shear: A shear force is created where two opposite forces try to cut tear or rip something in two.
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