Blogg con entradas, ejercicios y recursos destinado a los estudiantes de las asignaturas Física y Química de 3ESO a 1 Bachillerato, Física de 2ºBachillerato y Química de 2º Bachillerato

jueves, 17 de noviembre de 2016

Structure of Matter and the KMT hypothesis



Watch these videos and answer the questions

  1.  What is the main idea of the KMT?
  2. What are the two main parte of KMT
  3.  How do partícles move in a)solid b)líquids c)gasses





viernes, 11 de noviembre de 2016

Consejo seguridad nuclear

For this activity You must visit Visita Virtual CSN

  • What does radioactivity consist of?
  • What are the three main types of radioactive emmisions?
  • Explain the interior of a nuclear reactor and the safety equipment. 
  • What can they do With the nuclear waste?

jueves, 3 de noviembre de 2016

Last Review 3 ESO


1 How would you separate? A) A mixture of oil and water, b) a mixture of sand, water and iron c)a dissolution of water and alcohol.

2 List the basic and the derived magnitudes, indicating symbols and units

3 Convert these magnitudes to the IS units
813 mm                                                               12,5 mg
3,2 min                                                                234ºC(add 273,15K)
5,98 km2                                                             165 km/h
0.125 hm3                                                           77,7 h
23,14 ton                                                            25 L(dm3)

 4 Express into scientific notation with the number of digits between parenthesis:
0.00025698781 m (4)                                         235874 kg (3)
21.8754 l (2)                                                       0.012543 g/l (5)

5 When we measure the energy of an object against its speed, we get:
Speed m(s)
Energy (J)
2
8
4
32
5
50
6
72

Graph these results, determine the relationship and the equation for energy as a funcion of speed

Review 4 ESO L1 and L2


  • Take the elements A)Z=12; B)Z=17 and C)Z=36. Write their electrónic configuration, their Group and period. Tell their aggregation state, their stable iones.  Order them by their increasing atómic radious, electronegativity, ionization potential. For the bonds A-A, B-B, A-B, Tell which Will be gaseous, which Will be a solid electrical conductor and which will be an electric conductor. 
  • Summarise the 4 atomic models: author, experiment and what it consists of. 
  • When we measure the kinetic energy against the speed, we get these data:
        v(m/s) 2; 4;  5;  6
        E (J) 8; 32; 50; 72
     Graph these data, determine the type of relationship and the equation E as a function of v.

Review 4 ESO L1 and L2


  • Take the elements A)Z=12; B)Z=17 and C)Z=36. White their electrónic configuration, their Group and period. Tell their aggregation state, their stable iones.  Order them by their increasing atómic radious, electronegativity, ionization potential. For the bonds A-A, B-B, A-B, Tell which Will be gaseous, which Will be a solid electrical conductor and which will be antes electric conductor. 

  • Summarize the 4 atomic models: author, experimentado and what it consists of. 

  • When we measure the kinetic energy against the speed, we get these data:
v(m/s) 2; 4;  5;  6
E (J) 8; 32; 50; 72
     Graph these data, determine the type of relationship and the equation E as a function of v.

miércoles, 2 de noviembre de 2016

Problems Matter 3ESO

  1. Explain what is and give examples of: a) homogeneus
    Mixture; b)element c)heterogeneus mixture d)compound
  2.  How doesw KMT explain? a) we only know the taste of a soup if we take it, but we can smell it from far away b)Solids have a constant shape and volume c)gasses can be compressed, solids and liquids cannot d)A punctured tyre quickly desinflates, even if the hole is tiny
  3. Which are the properties of the 3 aggregation states?
  4. Supposse a gas at 26,85ºC  (convert to K). Its volume is 50 L and its pressure 2 atm. What will be its new volume if:   a) The new temperature is 600k at 2 atm. b)At 300 K, the new pressure is 4 atm c)At 600 K, the new pressure is 1 atm

Problems Matter 3ESO

Explain the meaning and give examples of
Mixture
Element
Heterogeneus mixture
Compound