The document presents information about electric cars, including their history and advantages and disadvantages compared to gas-powered cars. It discusses how the first cars were electric but were replaced by gasoline-powered internal combustion engines in the 1930s. It then covers how electric motors work and highlights advantages like no emissions, simpler engines, and high efficiency, but also disadvantages such as long recharging times, expensive batteries, and lack of mechanics who can repair them.

1. David Yabar, Jordi Duocastella and Sergi Gomez

2. Presentation of electric car
 We're going to talk about electric cars
 The petrol is disappearing
 Electric cars use clean energy
 Advantages and disadvantages

3. History of the car
 The first kind of cars were electric
 At the beginning electric cars were for rich people
 Improvement
 Improvements on the starting of internal combustion
technology simplified thermic engines
 Electric cars totally disappeared in 1930

4. How electric motors work

5. Advantages
 There is no transformation of energy
 An electric engine is more simple than thermic
engines
 Electric cars don’t make much noise
 An electric engine is extremely efficient, around 90
percent

6. Disadvantages
 We still need a few hours or at least an hour to
recharge it
 Batteries are not recyclable
 Electric cars are very expensive
 There are a few mechanics that can repair it

7. Conclusion
 Economic deals with governments.
 Pollution and greenhouse gases
 Electric car will have a positive impact