Science q??? -help?
Answer:
A hybrid uses a gasoline engine to power a battery bank, which is used for motive power. The gasoline engine can also be used directly if additional power is needed.
A hybrid electric vehicle runs on electricity, but only part of the time (typically at lower speeds), the rest of the time it runs on gasoline (like very other car). You use less gas because, when the engine is running on gas, it is charging the battery and only running on gasoline part of the time. Therefore it saves you on $$ at the pump because you are using less gass over all.
Purely electric cars have to be plugged into an electrical outlet and charged. A big pain. Also, they can't run so fast.
It is a vehicle operated by gas and electricity.
A hybrid uses two technologies, an internal combustion engine, which we have seen for many years, burning gasoline as a fuel, and electric motors, which is not so common, but equally viable as a means of transportation and much cleaner.
In the past, electric vehicles needed to be plugged in somewhere to charge the batteries, then you could drive until the batteries were drained. The longer you drove, the less power the car had, until at last, you were stopped, stranded, or, hopefully back home.
The hybrid uses the combustion engine to keep the batteries charged, or "topped off" all the time and much of the time the engine will switch off while you continue to drive and switch back on when additional charge is needed. At highway speeds the batteries are discharging so quickly that the combustion engine may need to run much more, thus the car will actually get lower mileage on the highway than in town...K ;o)
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