PHYSICS AND CHEMISTRY 4th ESO IES VILLABLANCA DOUBTS

You may ask all your doubts, along the year, through this thread or anything else related to this subject.

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  1. Are the results in page 10 exercise 1 c d and 2 wright? Is because i obtained different solutions. This are the results I have obtained:
    1c: 5,5x10 to the power of -6
    1d: 2.08
    2: 332,5
    Are they ok or am i wrong and the ones in the book are good ?
    Thank you very much.
    ELISA MORAGA LÓPEZ

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  2. Your answers for exercise 1 are OK. They are wrong in your book. In exercise 2 there is a mistake because the radius of the Earth is 6378 km instead of 6378 m.

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    Respuestas
    1. Thank you for answering my questions. Now I understand everything better.
      ELISA MORAGA LÓPEZ

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  3. Africa, can you explain me the exercise 5 and 3 of the page 9? Thank you. I´m Alberto García González. 4º eso C

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    Respuestas
    1. EXERCISE 3: With the same picture we did last Thursday, ma = mgsin45º-Ff;
      4m = 6,93 m-1; 1=(6,93-4)m and now you can obtain the mass value.
      EXERCIOSE 5:The friction force and Wx are both directed downwards as the body is moving upwards. The rest of the data are for you to calculate acceleration.

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  4. Africa, can you explain me the exercise 9 of the page 8? It´s important! Thank you. I´m Alberto García González. 4º eso C

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  5. Don't worry, Alberto. You have already passed this term.

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    Respuestas
    1. Africa, thank you very much for your response and your information. In addition it wanted to ask you if it is possible not to make 1 the recovery of the topic since this week I have her loaded with examinations and it me would come very well not to have to prepare this one. Thank you. I´m Alberto García González. 4º eso C

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  6. You don't need to do any recovery exams. Those of you who have passed the term already will begin to solve the practice exam (without books) on wednesday´s class but you will hand it to me a few days later.

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  7. África me podrías decir lo que entra en el examen de recuperación de septiembre de fyq, porque de todas las asignaturas han dado un papel que ponía lo que había quue estudiar de esa asignatura pero de fyq no han dado ningún papel

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    Respuestas
    1. Entra todo lo que vimos en clase. Es decir, todos los temas menos el de ondas y el de formulación orgánica. Del tema de estequiometría sólo entran los cálculos y los tipos de reacciones pero no toda la teoría sobre ácido-base y cinética. En definitiva, lo que explicamos en clase.

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