3º ESO


Mechanisms

Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices  Levers. Give me the place to stand, and I shall move the earth (Arquimedes) A lever is a simple machine that makes work easier; it involves moving a load around a pivot using a force. In a lever there is a […]


Computers

Computers Drivers     Computers    Exercises Computers   In this topic we’re going to study the fundamental parts of computers and what functions they have In general terms, the function of computers is to take in data that is inputted by peripherals (keyboard, mouse, stylus etc), process this data […]


Injection Molding

Injection Molding .   Video text. Read carefully the text and watch the Video about this Method of Processing Plastic. Injection molding is the most common method of producing parts out of plastic material. The process involves injecting molten plastic at high pressure into a mold shaped in the form […]


Plastics videos and Exercises

Plastics Fabrication Adhesives Exercises  Plastics, videos  and Exercises .     Below, we are going to see a series of questions for the 3º ESO technology students. All of the questions can be completed interactively in the part of “potatoes”. Choose the correct answer 1. Plastics are: a) Elastomers which […]


Adhesives and assembly in plastics

Plastics Fabrication Adhesives Exercises  Adhesives and assembly in plastics.   Adhesives There are many adhesives (glues) available that have been developed over recent years. Some adhesives, such as wood glues, are for specific materials, whilst others, like epoxy resin, will bond dissimilar materials. Adhesives may be rigid or they may […]


Fabrication of Plastics

Plastics Fabrication Adhesives Exercises  Fabrication of Plastics.   Fig 1 Extrusion: Using this processing it is possible to produce a wide range of different forms of plastic, such as tubes, sheets and films, structural parts, etc. 1º Step: Plastic pellets are placed in a feed hopper which feeds into the […]


Plastics

Plastics Fabrication Adhesives Exercises  Most plastics are made from oil. Plastics are man-made materials. They are a useful invention because they are waterproof, easy to shape and tough. They have taken the place of traditional materials like wood and metal in many products. It is bad to waste plastic, as […]