True or false. States of matter

Answer true or false: The particles are less tightly bound together in a solid. The particles in a gas move very quickly. All systems are composed of material particles. Liquids are compressed and…

Check. Mass and weight

Remember what you have studied in this section and answer the questions: What is gravity? Where do we see examples of the force of attraction between bodies? Discuss.

Calculate. Pressure

Calculate the pressure exerted on snow by the feet of a man with a mass of 81 kg if you know that the total surface area of the soles of his boots is 0,6 m2? Note: g = 9,8 m/s2. P = Pa

Choose. Upthrust and buoyancy

Choose the correct answer: What equals the upward thrust experienced by a submerged object in a liquid? What is the apparent weight of an object? What happens if the weight is less than the upward…

Final Autoevaluation T10 01 - Obtaining and using energy

Choose the correct answer: What type of energy is produced when a girl is moving on roller skate? How is this energy transformed when she goes up hill? When a an elastic bow shoots an arrow to the…

The great colonial empires

3.1. Dividing up the world The major European powers gained control of almost all of Africa and Asia, most of the islands in the Pacific Ocean and Oceania, and large parts of North America. Africa was…

Peasant revolts

We believe that peasants should not seek any other economic goal but the fairest distribution of land and farming equipment. Our hope lies with the Andalusian peasants, who we consider capable of…

Choose. Artists of the 20th century

Match each artist with the correct artistic discipline: S. Calatrava Picasso Le Corbusier A. Warhol e. Kandisky E. Chillida Miquel Barceló Mies Van der Rohe Calder S. Dalí P. Gargallo J. Miró A. Tàpies

La lírica de preguerra

El teatro de preguerra