 
          79
        
        
          
            Match the terms used in the text with the corresponding definitions
          
        
        
          1.
        
        
          inertia
        
        
          a) a period of time when electric power has failed,
        
        
          causing a loss of lights;
        
        
          2.
        
        
          utility
        
        
          b) the physical force that keeps something in the same
        
        
          position or moving in the same direction;
        
        
          3.
        
        
          blackout
        
        
          c) an occasion when less electric power than usual is
        
        
          supplied to an area;
        
        
          4.
        
        
          grid
        
        
          d) a service that is used by the public, such as an
        
        
          electricity or gas supply;
        
        
          5.
        
        
          surge
        
        
          e) a sudden and great increase;
        
        
          6.
        
        
          brownout
        
        
          f)
        
        
          a system of wires through which electricity is
        
        
          connected to different power stations across a region.
        
        
          
            Follow the link
          
        
        
        
          
            Watch the video carefully and take some notes
          
        
        
          
            Answer the questions below
          
        
        
          1. What is electricity today? How do we use it?
        
        
          2. What is the main problem about electricity?
        
        
          3. What is an electrical grid?
        
        
          4.
        
        
          How does it work?
        
        
          5. What are the three components of a typical power grid?
        
        
          6. What do all types of power plants have on common?
        
        
          7.
        
        
          Describe the process of the generation of the electric energy.
        
        
          8. What is the main advantage of AC power?
        
        
          9. What is a transformer used for?
        
        
          10. Why can the grid be compared to a marketplace?
        
        
          11. Why is the power grid a shared resource?
        
        
          12. What are the three overarching technical goals that engineers use to
        
        
          design and maintain the power grid?
        
        
          13. Why is it hard to balance electricity supply and demand?
        
        
          14. How can we make grid smarter?
        
        
          
            Take notes on them. Discuss your answers with your groupmates
          
        
        
          
            
              You are going to take part in a videoconference. The conference is
            
          
        
        
          
            
              devoted to main problems in power engineering and ways to solve them.
            
          
        
        
          What are types of energy most widely used by humanity?