Hello again!

This is my last blog post for Technology. in the past few days we have been learning all about structures in both Technology and Science class, but I’m going to mainly talk about what I learned in Technology.

The main things that I have learned about is tension, compression, and the properties of materials. Tension is stress that a structure undergoes when it is being stretched, and compression is stress on a structure when it is being squeezed. To combat these issues, people have made braces out of triangles, which are the strongest shape, to allow for the structure to take on more tension and compression.

The properties of materials define what it can be used for. There are 6 different properties. The first property is stiffness, which is the materials ability to resist deformation under stress. he second property is strength, which is the ability to resist externally applied forces without breaking or yielding. The third property is ductility, which is the property of a material that enables it to be drawn into a wire. The fourth property is brittleness, which is the property of breaking a material withe little permanent distortion. Brittleness is the opposite of ductility. The fifth property is toughness, which is the property of a material to resist fracture due to high impact. The last property is hardness, which is the property of a material to resist permanent deformation when a load is applied.

This is what we have learned from the last few days of technology.