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II. Match the words with their synonyms
III. What is the difference between Watts and Volts and voltage? What is voltage drop? A unit of power equal to one joule per second is .(1) The difference in voltage from one end of an electrical circuit to the other is called (2) The force, or pressure, of electricity is (3) (4) is also known as potential. (5) is a unit of electric potential and electromotive force, equal to the difference of electric potential between two points on a conducting wire carrying a constant current of one ampere when the power dissipated between the points is one watt. IV. Revise your Vocabulary for Cars:
V. Watch the video again for specific information. Write the missing figures.
Recharging costs after a 5 ..miles distance
Energy efficiency
VI. Use the table to answer the questions: Which type of car is cheaper? Describe the difference in price per 100 miles between electric and petrol cars. (Use the words compared to, cheaper than, more expensive than) Which car is more efficient? Why? Where does the rest of the energy go in electric cars?
VII. Listen to the recording again and fill in the missing information. Prepositions 1. A typical electric vehicle battery would require ____________ 8 hours if the battery was completely empty. It would draw about 2500 Watts ____________ hour if charged ____________ a typical residential circuit consuming about 20 kWh hours ____________ total.
2. Compare this to a 100 Watt light bulb which, if run ____________ 8 hours, will consume ____________ 0.8 kWh.
3. To put it another way, recharging your electric vehicle ____________ a typical size battery ____________ one year will be equivalent ____________ the average annual energy used ____________ four plasma televisions. Words 4. Its likely that your electric ____________ recharging ____________ after a hundred-mile ____________ will be about $3.00. To ____________ another perspective, the cost of ____________ the typical gasoline power vehicle for a ____________ distance will be about $10 depending on a ____________ class. ____________, your operating cost will ____________ significantly if using electrified vehicles.
Date: 2016-03-03; view: 1279
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