Un mecanismo es una combinación de operadores cuya función es producir, transformar o controlar un movimiento.
Para interpretar mejor su funcionamiento, no hay nada mejor que verlos en movimiento. En la red existen recursos muy interesantes. Aquí os dejo una colección de animaciones de mecanismos.
WEB ANIMATED ENGINES
LIBROS VIVOS. EL MOVIMIENTO DE LAS MÁQUINAS.
WEB TECNOLOXIA.COM de Antonio Lomba.
WEB DEL CENTRE DE DÉVELOPPMENT PÉDAGOGIQUE
WEB MÁQUINAS Y MECANISMOS.
You are going to make a presentation about renewable energy sources using OpenOffice Impress.
As you know, you can include text, graphics, diagrams, photographs and sound in a presentation using this program.
This presentation has to include slides about hidraulic energy, solar energy, wind energy, geothermal energy, marine energy and biomass. Every slide must explain how we use this kind of energy, and the advantages and disadvantages of this renewable source. It would be better if you include pictures in the slides.
You can watch this video about presentations:
In this file you find advices about a good presentation:
how to ppt
You can find information about these sources on the internet and in your book. These links have information about this topic:
We are going to study in this post these three renewable energies: solar energy, biomass and ocean power. The information we are going to study is on this web page:
You will find in this site made by Susana Amorós Ortega notes about energy resources.
Firstly, students read the document called Hand out 4.1. After reading, students have to answer questions about this text which are on page 12 of the Student worksheets.
Secondly, students read the document called Hand out 4.2 about biomass. After reading, they have to answer the questions which are on page 13 of the Student worksheets.
Finally, students have to read the text and answer the questions about ocean power which are on pages 13 and 14 of the Student worksheets.
Energy and environment is the topic we study this week. Firstly, we are going to read a text about the carbon footprint. It is defined as the total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).
Click on this link to read the text:
After reading you have to answer the questions from the printable worksheet. Click on the link you will see on this webpage.
Finally, you are going to find out your carbon footprint using this calculator:
This is s good video to understand electromagnets. As you know an electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off. Electromagnets are widely used as components of other electrical devices, such as motors and generators.
After watching the video, you have to answer these questions:
1. A magnet can pick up a pile of staples. True or false.
2. A screw can pick up a pile of staples. True or False.
3. Wire wrapped around a screw can pick up a pile of staples. True or False.
4. How can you create a magnet with a screw and wire?
5. How did the man in the video make the needle of the compass move?
6. As recommended by the man in the video, how can you experiment with electromagnetics at home? How can you measure the strength of the electromagnets?
Visit this webpage and click on Voltage, Current, Resistance. You will make electric circuits on line and you can put an ammeter or voltmeter in order to check your answers in circuits you solved before. http://gwydir.demon.co.uk/jo/elect/index.htm
We are going to review what we have learnt in this link: http://www.andythelwell.com/blobz/.
This web page has information about electric circuits and activities.