ESTADOS DE LA MATERIA. CAMBIOS DE ESTADO

- Pincha sobre la imagen para repasar los estados de la materia y sus cambios
- Video sobre la sublimación
- Visita la siguiente página y realiza las actividades 1,2,3,4,5 y 6.

CÁLCULO DE LA DENSIDAD

1) Pincha en este enlace para aprender a calcular la densidad
2) Actividades de densidades

ECUACIONES DE PRIMER GRADO

Repasa la resolución de ecuaciones con la siguiente actividad

PERIODIC TABLE OF THE ELEMENTS

Click on an element symbol for more information

TORRICELLI EXPERIMENT

Listen to the following video about the experiment of Torricelli and then fill the gaps in the text:

Torricelli Experiment

Torricelli performed his celebrated experiment on argento vivo (quicksilver) i.e mercury in ……………………. in Spring 1644.  Torricelli filled a glass tube open on one end with ……………………….  Then closing off the open end with a finger he tipped the ..…………. upside down and lowered it into another basin containing more mercury.  He observed that the column of mercury…………………………. only partially stopping at a height of about ………. cm.  Toricelli was convinced that the space created by the descent of the mercury in the tube was …………………, and that the force holding up the column consisted of the ………………… exerted by the……..  on the mercury in the basin.  In a letter to Michelangelo Ricci June the 11^th 1644 Torricelli declared that his ………………………. proved 2 fundamental concepts; 1^st that nature did not abhor the void 2^nd that air had ………………..  The results of the mercury experiment opened a period of………………………….. change, forcing a re-examination of doctrine accepted for ………………………... 

ESTADOS DE LA MATERIA. CAMBIOS DE ESTADO

Puedes repasar los estados de la materia y los cambios de estado pinchando en el  siguiente enlace.

NEWTON´S LAWS OF MOTION

 

Answer the following questions with the information you will find in the  website: http://teachertech.rice.edu/Participants/louviere/Newton/

1. Enunciate Newton's first law of motion.

2. What is another name for the first law of motion?

3. Enunciate Newton's second law of motion.

4. What is the mathematical formula for Newton's second law?

5. Enunciate Newton's third law of motion.

6. Calculate the acceleration with which  we will move a toy car of 750 g, if we pull it with a force of 5 N.

7.  Give an example which explains Newton's third law,  and draw on it  the forces of action and reaction.

8. Do the quiz and check your answers.