viernes, 31 de marzo de 2017

EXERCISES:
Page 92, exercises 1-2
1.Copy and complete the following table:


Type of structures
Examples
Mass
Walls, dams, etc.
Frame structures
Building
Truss Structures
Electricity pylons
Suspended stuctures
Bridges, marquees, etc.
 
2.Have you seen a structure that uses cables? Write down the names of ones that you can remember or the ones that you can see.

Resultado de imagen de  electricity pylons
Electricity pylons
Page 93, exercises 3-6
3. When a person  sits on a chair, the stress that the chair has to withstand is due to the weight of the person, whereas the strength is the chair's ability to withstand the load without breaking. Indicate which is the strength and which is the stress in these two examples:

    A) A wardrobe hanting from a rope: Bending.

    B) A twisting telephone cord: Torsion.



6. Describe the structure of a turtle's shell. Why do you think it has this shape? What material do you think it is made from? Is it strong enough for the stresses it has to withstand?

The shell it's like an oval.
I thing that it is made of  a type of bone, an external eskeleton.
Yes I think it is cuse it has to withstand the turtle body.



7. Which types of stress do the following elements and activities have to support: 1) a rope with a weight hanting off it, 2) a man pushing a cabinet, 3) tightening a screw, 4) cutting our fingernails.

1) Bending

2) Compression

3) Tension

4) Shear



 9. Write s short description of three objects using one of the following adjectives for each object: rigid, elastic and plastic. Explain how these properties allow the objects to fulfil their function or make them suitable for yheir purpose.

Rigid: does not deform.

Elastic: deforms but then returns to its original shape.

Plastic: deforms and stays deformed.

Page 95, exercises 11-12
11. Copy and complete the following table in your notebook with objects that have the properties shown in the right-hand columm.



Object
Properties
Brick
Rigid
Plastic
Deformable
Rubber
Elastic
Plasticine
Plastic

12. Think about the following objects and state whether they are rigid, plastic or elastic: balloon, empty drinks can, window frame, clay, catapult, door.
Rigid: Door, Catapult.

Plastic: Balloon, Windows frame, Empty drinks can.

Elastic:  Balloon, Clay.


miércoles, 22 de marzo de 2017

Comprehesion Activities

  • Explain what is a website and give three examples:                                                               A website is a series of web pages linked each other that can  be accesed from a common adress.  For example:
  1. Define the following concepts: static page and dynamic web page . Explain what language each one uses:                                                                                                        
 Static web page are pages that do not change , thet always shows the same contens . Example schools web  pages are always the same  they just upload more info but it could be once a year.

Dynamic web page are pages that constantly changing and change a lot .Example Google facebook twitter... 

     2. What extension is used by the files to make up a website?
To make up a website we use HTML



         
THE CLOUD BUTTERFLY
Tinkercad
You can do it  with Tinkercad and you can printer with a 3D printer.
Structures:
Mass:
A mass structure is a structure that is made by combining similar materials into a certain shape or design. Mountains are an example of a natural mass structure, and brick walls are an example of a man-made mass structure.
Frame:
Frame structures are the structures having the combination of beam, column and slab to resist the lateral and gravity loads. These structures are usually used to overcome the large moments developing due to the applied loading.
Truss: 
These structures are composed of bars that form triangles. They are lightweight and sturdy. Examples include cranes, electricity pylons, etc.
Suspended: 
These are held in place by cables and suspended attached to study supports , Examples include suspension bridges, tents, marquees, etc.

viernes, 25 de noviembre de 2016

1. Web Pages

In this entry im goint to talk about several things related with web pages.
I n this excercises im going to explain: Web page, Hosting, Local site and Remote site.

Resultado de imagen de web page iconWEB PAGE: A web page or webpage is a document commonly written in hypertext  Markup Language (HTML) that is accessible through the Internet or other network using an Internet BROWSER. A web page is accessed by entering a URL address and may contain text, graphics, and hyperlinks  to other web pages and files. The page you are reading now is an example of a web page.

HOSTING: It is the process used by a webmaster to make  a web page available to internet users.

Resultado de imagen de remote site icon

LOCAL SITE:  Is the normal  working procedure for webmasters is to create the set of files that the web  on their computer .

REMOTE SITE:  This allows  the webmaster´s web page page to be viewed  by other user . It must be located on an   Internet server , which is usually provided by private companies. 

 

When do yo think a web master should replace the files hosted on the sever?

The webmaster should change or replace files when a hacker or someone find  some personal information