This is a presentation we made in technology class. The topic was "ENERGY", and we made it about The Electric Cars.

1. Electric Car
Index:
· What are electric cars?
· History
· How do they work?
· Advantages
· Disadvantages

2. What are electric cars?
 An electric car is an automobile that is propelled by one
or more electric motors.
Electric motors give electric cars instant torque,
creating strong and smooth acceleration.

3. History
 The first electric cars were produced in the 1880´s and
became popular in the late 19th century and early 20th
century until advances in internal combustion
engines and mass production of cheaper gasoline
vehicles led to a decline in the use of electric drive
vehicles.
 The energy crisis of the 70´s and 80´s brought a short-
lived interest in electric cars, but since 2008, a
renaissance in electric vehicle manufacturing has
occurred due to advances in batteries and power
management.

4. How do electric cars work?
 While most current highway-speed electric vehicle
designs focus on lithium-ion and other lithium-based
variants a variety of alternative batteries can also be
used in electric cars, such as:
 Lead acid batteries
 Zinc-air batteries
 Molten salt batteries
 Nickel iron batteries
 Etc.

5. Advantages & disadvantages
 Advantages:
- No gas is required, some electric cars have a battery range of 40 miles
without any gas consumption.
- Electricity is much cheaper than gas, and you can plug the car into any
outlet of the proper voltage.
- Electric cars give off no emissions, they are better than hybrids in this
because the are 100% free of pollutants.
- Safety is a big concern with these vehicles. However, the fluid batteries
actually take impact better than a fully made gas car, and can help even
more in the event of an accident.

6. Advantages & disadvantages
 Disadvantages:
 -The first disadvantage is the price. Electric car batteries are not cheap, a 40
miles range vehicle sells for around 30.000$.
 -These cars make no silence, so people won´t hear if one of this cars is coming
and an accident could occur.
 -Most of the batteries of electric cars are slowly charged, it take you hours to
fully charge them.
 -Mostly all the electric cars have a range of less than 25 miles and the top speed
of most models is 60 miles per hour, but this will improve in the future.

7. Advantages & disadvantages
 Disadvantages:
 -The first disadvantage is the price. Electric car batteries are not cheap, a 40
miles range vehicle sells for around 30.000$.
 -These cars make no silence, so people won´t hear if one of this cars is coming
and an accident could occur.
 -Most of the batteries of electric cars are slowly charged, it take you hours to
fully charge them.
 -Mostly all the electric cars have a range of less than 25 miles and the top speed
of most models is 60 miles per hour, but this will improve in the future.