2nd April 2020
Actividades de refuerzo y repaso Semana Santa
Os dejo aquí las actividades de refuerzo y apoyo de Semana Santa. Os recuerdo a todos que los alumnos con la asignatura suspensa deberán mandarme estas actividades de forma obligatoria por class dojo o a mi mail . Para los demás alumnos será opcional.
La idea es ir haciendo las tareas poco a poco y mandarlas poco a poco.
Yo estaré disponible mañana durante la mañana para resolver dudas y también me volveré a conectar el miércoles 8 de Abril.
31st March 2020
1. Because the gold is not a metallic object.
2. Look at my picture.
Now read pages 88 and 89 and do exercise number 1 .
30th March 2020
Page 87 exercise number 1 :
1.-What does electrically neutral mean?
An Object is electrically neutral when it has the same number of positive and negative charges.
2.-Cables are usually made of coper wire and wrapped in plastic . Why do you think they are made this way ?
Because the copper is a conductor and allow the electrical charges to move from the generator to all parts of the circuit. The plastic is an insulator and prevent us to be hurt by electrical currents.
I leave you a simple game about electrical circuits.
For today you have to copy this scheme and you have to read pages 88 and 89 of your book and then do exercise 1 and 2 from page 89.
27th March 2020
TOday you have to copy this scheme in your note books with the paintings of the electrical circuit diagrams of page 87. You have to read pages 86 and 87 and you must do exercises 1 and 2 from page 87.
1.- The problem that all means of transpor have is the friction .
2.- Bicycle Surface and air friction
Boat Water and air friction
Car Surface and air friction.
Plane Air friction.
3.- Scientis replaced the wheels of a train with magnets. This magnets were faced down with the north pole. In the other hand they replaced the train tracks with magnets with the north magnetic pole facing up . The magnets of the train and the magnets of the traks repeled each other making the train float.
4.- Surface friction is avoided.
5.- Maglev trains can be found in Corea , Japan or China. They can reach up to 600km/h .
6.- The air friction.
A : Heat
B: Chemical effects.
Homework for today:
To read page 84 and to do exercises of page 84 and 85 .
Send me your exercises via Class dojo .
to copy this scheme: