How can electricity be controlled and used?


Targets

At the end of this Unit you should be able to answer the following questions 

2. How can electricity be controlled and used?

2.1 How is the electricity we use daily measured and paid for?

2.2 Do all materials allow electricity to flow through them?

2.3 How can we understand, design, and control electrical pathways?

2.4 How can we change circuits to control the amount of electricity that flows?


Electricity and technology give us many advantages. For example, thanks to advanced electrical circuits, home control systems can control lights and music automatically, turn alarm systems on and off, keep the temperature just right, monitor all areas of the home wirelessly, and even alert police if needed.