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                                                        MAKING AN ELECTROMAGNET.


     * Activity 1.4  ( 20 points ) :  Electromagnet.      ( 8/25/17   Friday )




             1.4.a   Crossword review activity :


                                                           CROSSWORD 1  ( sort of forces )

                                                               CROSSWORD 2  ( sort of forces )




           Let’s see the video to make an easy electromagnet.             VIDEO.  ( 2:09 - 3:09 min ).





              1.4.b   NOW , DO IT !!!     (Materials are given to you, groups of 3 people).
                                                      ( You need a battery, wire, tape and a nail ).
        




             1.4.c  Make a report about the steps followed to make the electromagnet and give it to your teacher. Use the template your teacher gives you in order to full all the important sections



                                                             REPORT  TEMPLATE









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                           WHAT KIND OF FORCES IS POSSIBLE TO HAVE?
CAN WE CONNECT EACH KIND WITH A CERTAIN HUMAN ACTIVITY?.



    * Activity 1.3 (5 points) :   Sort of forces.      ( 8/24/17 Thursday )

 


         1.3.a   Review crossword exercise.   (stiffing structures ).


        1.3.b   Paying attention to the activities societies achieve for living, we can deduce the different kind of forces we can have. ( Electrical force, magnetic force, tension force, friction force,  nuclear force, contact forces, non contact forces or action at a distance forces, gravitational forces, centripetal force, centrifugal force, etc ) , but in physics we have the following classification.
 
                  Observe the drawings at the sheet you are given and try to match each one with the appropiate kind of force using arrows :


                                                                       KIND OF FORCES


                                               CONTACT AND NON CONTACT FORCES VIDEO 1.


                                                              NON CONTACT FORCES VIDEO 2.

                                                            



        1.3.c  Make a table and classify the kind of forces you know in two groups, "contact forces" and " action at a distance forces or non contact forces" :

     ( electrical force, applied force, normal force, frictional force, magnetic force, nuclear force, spring force, gravitational force, air resistance force, tension force ).


                                                                   
                                                                  TABLE



           1.3.d  Make groups of four people and with the objects given, try to creat some of the different kind of forces you have learnt.

                ( string , marble, elastic band, battery, paper, rug, plastic tube, nail, wire, tape, balloon, paperclip,   ... some other objects you can have around you...).








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                                    TOTAL SOLAR ACLIPSE ON AUGUST 21th.      ( 8/18/17  Friday )




   1- Are you ready for the total solar eclipse on 21th August next week?. Check on the following video what a total solar eclipse is and how you may watch it without damage your ayes and why it is going to be well visible in Kentucky.


                                                              TOTAL SOLAR ECLIPSE VIDEO



    2- Read the information given by your teacher about the total solar eclipse and answer the questions at the paper’s bottom.



                                                            TEXT TO READ :  SOLAR ECLIPSE



 

   3-  Will you go out to see the eclipse next Monday?, you will enjoy if you do.


                                                      VIDEO HOW TO DO A PINHOLE CAMERA.



        Try now to explain with your own words what a total solar eclipse consists of. Write you explanation at the paper’s back from the activity 2. 



    4-  Explain the way you are going to see the eclipse for you know you cannot see it looking directly at the sun unless you want to damage seriously your eyes. Which method are you going to use to see the eclipse?  glasses?  pinhole?.




                                        HOMEWORK FOR WEEKEND 8/19/17 - 8/21/17


    - As a homework about the solar eclipse to can do these two works :

 1) Look for  the meaning of the following vocabulary (PDF file attached) on internet :

                                                                   Vocabulary (PDF).

  2a) Search in internet how many total solar eclipse there have been since the year 1900 to  on 21 August 2017.

  2b)  How many of them have been able to be seen in USA (Kentucky)?.


                         

      - At the following link you can find how many solar eclipses ( counting partial and total solar eclipses in total, about 92 since 1900 ) there have been since 1900 to 2017 :


                                                   Number of solar eclipses since 1900



   - Addicional interesting and nice information about the solar eclipse :


                                                       SOLAR ECLIPSE WEBPAGE







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               * Activity 1.2  ( 20 points ):   Supporting structures.      ( 8/23/17   Wednesday )



   - ACTIVITY 1.2 : Forces are very important in every facets of our life. But today we’re going to analyze what they have to do with the structures that surround us.



     1.2.0    Review concepts from activity 1.1
                 At the following crossword look for five word-concepts we learnt at the last activity 1.1
 

                                                                      CROSSWORD

                                                                      ( Force’s effects )



     1.2.a   To understand what we’re going to do today we watch a very nice video first :
    

                                      VIDEO FOR BUILGING  A STRUCTURE’S STABILIZER.






      1.2.b   Build that triangle structure in order to support a pile of books.
                 Use the materials given by your teacher to build it.




       1.2.c   After building the structure you have made and checked, talk in pairs about the reason why it is necessary to have a bunch of these triangle strucutures in order to support an object.  What is happening with the forces around these triangles?.
              
                        Write your answer at your notebook and show it and give it to your teacher.


        1.2.d   What does it happen when forces are not nicely worked out?...check it!!

 
                                                        Tacoma bridge collapse video                                






      
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                                                                LESSON 1

           FORCES AND INTERACTIONS.


   - Pre-task (5 points) : 

  Level test to assign current course students level.

                                          Test 




    - First of all, we should check what science is and what is used for, because we are studying forces and forces are just a part of the big branch of Physics (science).




  * Activiti 1.0 (5 points) :      WHAT SCIENCE IS.  ( 8/17/17 Thursday )

      1.0.a   Sit in groups of four and write in a sheet the answers you think are appropiate for the following questions :   (discussion in groups).

         - Copy the following questions in your notebook :
What science is? , what is it for? , How many parts does it have? , Which ones are we going to study? , do we use it in our daily life?...


                           Template to fill out :  WHAT SCIENCE IS.


       1.0.b  Watch this video and after check again the answers you gave to the previous questions and change the answers if needed.

                                  VIDEO 1

                                  VIDEO 2






          * Activiti 1.1 (10 points) :    Force’s effects.    ( 8/22/17  Tuesday )


1. In order to learn what a Force is and the effects Forces can produce we develope the ACTIVITY 1.1.
   
      1.1.a  In this activity you are going to follow your teacher instructions in order to manipulate the following materials : Two pieces of paper, a pen, marble, your own hands.
      
                 In pairs, with those objects, ask your partner what you must do to get the following effects :  

                       - Folding.
                       - Deformation, loss of shape.
                       - Breaking.
                       - Heating.
                       - Change of velocity, turn, spin, motion.






       1.1.b  Draw a chart at your notebook in which you write the effects a force can do.
                 Besides the effect write a little description of an example of you have done in order to get that effect.

                 Draw a chart like this :    CHART.






        1.1.c  We should try now to explain what a force is, what it is not an easy task.
                  Talk in a voice level 2 with your classmate about how to explain what a force is. Try to explain to each other without using the Word FORCE.
 




         1.1.d  Once you have talked for a while, and when your teacher tells you, watch the following video and after watching it, talk with your partner again trying to explain now with other words what you thing a force is.

                                         VIDEO 1.1.d  Forces and its effects.


                     After watching the video and talking with your classmate, write a proper definition at your notebook about what you think a force is. You can use an example (situation) in order to explain it.

           1.1.e    > Once you have written your own definition about what a force is, copy the following description of a force :

 

           A Force is :
 
                      a) A force is a push or pull upon an object resulting from the object’s interaction with another object.

   b) Whenever there is an interaction between two objects, there is a force upon each of the objects.

   c) When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction.





                                                                  What a force is...








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                                         7th GRADE SCIENCE’S RULES :




     - In order to develop a proper environment for a good learning process in class and for the students to get most profit of contents the following statements must be followed by every student :


1. Show respect to yourself and others. Follow your teacher directions.
2. Raise your hand before speaking or leaving your seat.                       
3. Arrive on time, prepared and ready to learn.
4. Say please and thank you.
5. Don’t either eat or gum in class. Drink when allowed.  
6. Make Friends and be thoughtful.
7. Keep hands, feet, and objects to yourself.



        - MATERIALS YOU NEED TO BRING TO CLASS FOR THE LESSONS :

     
                 > Notebook, pencil, eraser, scissors, glue.
                 > Your phone and headphones.
                 > Wish to learn.











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    I WANT TO WELCOME TO EVERY 7th GRADE SCIENCE STUDENT THIS COURSE TO MY CLASS AND I HOPE YOU ENJOY AND LEARN A LOT ABOUT WHAT WE PERFORMANCE AND ACHIEVE INTO THE CLASSROOM.



                                                              HAVE FUN


             AND ENJOY THE SCIENCE!!







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    - Els que teniu que recuperar l’assignatura de Tecnologia de 1ESO cal que presenteu al Setembre, entre el dia 1 i el 5, el dossier que us podeu descarregar aquí, i també haureu de fer un petit examen al Setembre de tots els temes que hem donat durant el curs.


 


    



   - Els que teniu que recuperar les eines TIC de 2ESO cal que feu la següent feina i que la pengeu al vostre bloc perquè la pugui corregir al Setembre :





 (Has de fer dues presentacions en anglès, del tema que vulguis, un esport, una festivitat, un viatge, un hobby...el que vulguis, una en PowerPoint i altra fent servir el programa PREZI, fes click a l’enllaç i veuràs  com fer-ho).


    Una vegada tinguis fetes les dues presentacions pots enviarme-les a :
                        (Si tens cap dubte escriu-me a aquesta adreça)


                                           profesoresobatx@hotmail.com














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  - We are going to learn in this lesseon about a magnitud close related to forces, the pressure into a fluid and the statics into fluids. We will also learn too about atmospheric pressure and other issues.

    We will begin studying how a force acting over a Surface can cause pressure.


    * More links will be added soon :
   


     Pressure 1


  




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- Cerca a internet i investiga quins components té un altaveu i quin material o component fa que un altaveu tingui un so potent i de què depèn la potència d’un altaveu potent com el del MEGABOOM.


   * Fes un treball en PowerPoint o Word i penja-lo al teu bloc. Aquí tens algunes pàgines que pots consultar :




 








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- Cal que us descarregueu els arxius que us agradin de sons d’animals a la següent web i després que els enganxeu a la foto de l’animal que haveu enganxat en un PowerPoint NO del DRIVE, cal que sigui una presentación Powerpoint, no del PowerPoint del drive perquè el del drive no deixa insertar arxius d'audio mp3.


   *     Per tant el que cal que feu és el següent : 

          Enganxeu fotos d’animals a un PowerPoint, però no el que hi ha al drive, després en aquesta web que us dono descarregueu els corresponents arxius de so amb els sons dels animals que us agradin i els enganxeu a la foto de l’animal del PowerPoint, de tal manera que, al PowerPoint , quan feu click sobre la foto s’escolti el so que fa aquest animal .  
           Aquí teniu l’enllaç per descarregar els sons dels animals en mp3 :




                                                                          SONS D’ANIMALS.






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- Noelia ha fet un molt bon treball amb el programa de GIMP modificant la següent imatge del següent link a l'enllaç número 1 i transformant-la en la que es veu en aquest article i que es pot veure més gran en l'enllaç número 2.      Aquí els tens :














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   - Next week, during the watch hours (horas de guardia) you will have to do the following tasks. Pay attention to them because they consist in a very important concept (friction).




  - TASK 1 :  Watch the following videos in order to remember the most important concepts about Newton’s laws we have already studied and after that watch the videos about friction because later you will try to achieve a few exercise with a friction force involved :











   - Video 1 of a friction force excercise.   (Pay attention when watching this video!!)






   - TASK 2 :   * Because this friction force exercises are not the easiest at all, I’m gonna post for you a few videos in spanish in order to get them well understood :








   - TASK 3Read very carefully pages 63, 64 and 65 of your book about friction.
                                Look up and read carefully the examples done there on this pages.






   - TASK 4 :   - Do the exercises  10, 11, 12, 13 and 14  from pages  63, 64 and 65  of your book.










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  - Now read a few definitions about the difference between mass and weight. After reading them try to write your own definition with your own words about the difference between mass and weight :




   Definition 1 :

In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities. In scientific contexts, mass refers loosely to the amount of "matter" in an object (though "matter" may be difficult to define), whereas weight refers to the force exerted on an object by gravity.[1] In other words, an object with a mass of 1.0 kilogram will weigh approximately 9.81 newtons on the surface of the Earth (its mass multiplied by the gravitational field strength).

(The newton is a unit of force, while the kilogram is a unit of mass.)

Its weight will be less on Mars (where gravity is weaker), more on Saturn, and negligible in space when far from any significant source of gravity, but it will always have the same mass.

 

    Definition 2 :

   A better scientific definition of mass is its description as being composed of inertia, which is the resistance of an object being accelerated when acted on by an external force. Gravitational "weight" is the force created when a mass is acted upon by a gravitational field and the object is not allowed to free-fall, but is supported or retarded by a mechanical force, such as the surface of a planet. Such a force constitutes weight.[2] This force can be added to by any other kind of force.
 

   Definition 3 :

While the weight of an object varies in proportion to the strength of the gravitational field, its mass is constant (ignoring relativistic effects) as long as no energy or matter is added to the object.[3] Accordingly, for an astronaut on a spacewalk in orbit (a free-fall), no effort is required to hold a communications satellite in front of him; it is "weightless". However, since objects in orbit retain their mass and inertia, an astronaut must exert ten times as much force to accelerate a 10‑ton satellite at the same rate as one with a mass of only 1 ton.

On Earth, a swing seat can demonstrate this relationship between force, mass, and acceleration. If one were to stand behind a large adult sitting stationary on a swing and give him a strong push, the adult would temporarily accelerate to a quite low speed, and then swing only a short distance before beginning to swing in the opposite direction. Applying the same impetus to a small child would produce a much greater speed.



  Definition 4 :





  Definition 5 :







   * Have you really understood the difference ?  then...try to do these exercises :


      Wording  1: 

     You are on the earth and have a bag of apples which weights 85N.  If you were to carry
the bag of apples to the surface of the moon, where the gravitational field is
only 1.67 N/kg, how much would the apples weigh?




       Wording 2 :

      An 80 kg person on
top of Mt. Everest would weigh only 781.6 N. 
How strong is the Earth’s gravitational field on top of Mt. Everest?




        Wording 3 :

       If you went to the
moon, how much would you weigh?




        









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     WE DON’T FORGET TO THANK OUR TECHNOLOGY TEACHER :

                                                               JORDI GIMÉNEZ

FOR HAVING PROVIDED US WITH ALL MATERIALS AND INSTRUCTIONS TO BUILD , SHOW AND MAKE THIS ROBOTS WORK AND FOR HAVING EXPLAINED HOW TO DO IT TO THE STUDENTS IN HIS TECHNOLOGY CLASSES.


  AND I WANNA THANK OUR STUDENT MARK ALARCON TOO FOR HAVING SET ALL THE ROBOT UP, PREPARE THE PRESENTATIONS, ORGANISE THE GROUP WITH THE OTHER STUDENTS AND CREATE THE VIDEOS AND ALL STUFF HE HAS DONE ABOUT THIS GREAT ROBOT PROJECT!!


  -  First of all we can check at the following link the presentation the students have prepared about how to work with a base plate or circuit board in order to connect and program the robot ( the robot we will take to Czech Republic to show ) and its functions :


                                                            CIRCUIT BOARD PRESENTATION



                                               PRESENTATION ABOUT HOW TO BUILD A ROBOT



                                                     PRESENTATION ABOUT EDISON ROBOTS




    - On the other hand you can watch several videos about what our robot can do  :


                                                             

       

                                          Video 1:   https://www.youtube.com/watch?v=FcK5C3PCZKM







                                          Video 2:   https://www.youtube.com/watch?v=v8gScecgtJg



 



                                          Video 3:   https://www.youtube.com/watch?v=lP7haTTZlK4