How does the cost per mile of driving an electric vehicle compare to the cost of driving a gasoline- or diesel-powered vehicle?Multiple choice question.The cost per mile of driving an electric vehicle is currently twice as much as the cost of driving a gasoline- or diesel-powered vehicle.The cost per mile of driving an electric vehicle is about half as much as the cost of driving a gasoline- or diesel-powered vehicle.The cost per mile of driving an electric vehicle is about three times as much as the cost of driving a gasoline- or diesel-powered vehicle.The cost per mile of driving an electric vehicle is about the same as the cost of driving a gasoline- or diesel-powered vehicle.

3 . 5 Table 1 shows data about different ways to power electric cars. Table 1 Hydrogen fuel cell Rechargeable lithium-ion battery Time taken to refuel or recharge in minutes 5 30 Distance travelled before refuelling or recharging in miles Up to 415 Up to 240 Distance travelled per unit of energy in km 22 66 Cost of refuelling or recharging in £ 50 3 Minimum cost of car in £ 60 000 18 000 Evaluate the use of hydrogen fuel cells compared with rechargeable lithium-ion batteries to power electric cars. Use Table 1 and your own knowledge.

Nowadays there is a debate on whether electric cars (EV) are more ecological and economical compared with normal gasoline cars (internal combustion engine, ICE). As materials engineers, we have the knowledge to solve this debate. We did a literature review and we found the following information:- The CO2 emission for the fabrication of an EV and an ICE car is the same and equal to 10 metric tonnes of CO2. However, EV cars depend on Li-Ion batteries. The fabrication of a 100 kWh battery pack adds to the EV fabrication another 12 metric tonnes of CO2 emissions. -ICE car consumes non-renewable fuel that produces an average of 5 metric tonnes of CO2 annually. EV cars consume electricity which is produced by a combination of renewable (solar, wind, hydro) and non-renewable energy sources, producing an average of 2 metric tonnes of CO2 annually. How many years will it take for the EV to be more ecological (less total CO2 emissions) than the ICE car?  Kysymys 2Valitse yksi:a.4 yearsb.many years because fabrication of ICE  car produces only 10 metric tonnes of CO2 emissions compared to EV that produces 22 metric tonnes of CO2 emissionsc.0 years. EV is immediately more ecologicald.8 months

Multiple Select QuestionSelect all that applyWhat are the benefits of electrical energy, as opposed to other forms, for powering our machines, vehicles, and appliances?Multiple select question.The generation of electrical energy doesn't produce pollution.There are less mineral resources needed to make electrical machines and engines.Electrical appliances and vehicles are more efficient.We can make electrical energy in many different ways.Operating costs are cheaper.

Select all that applyWhat are the benefits of electrical energy, as opposed to other forms, for powering our machines, vehicles, and appliances?Multiple select question.There are less mineral resources needed to make electrical machines and engines.Operating costs are cheaper.We can make electrical energy in many different ways.The generation of electrical energy doesn't produce pollution.Electrical appliances and vehicles are more efficient.

After careful thinking, can we say that EV cars are better than ICE cars?Kysymys 4Valitse yksi:a.Considering questions 3 a and b, we cannot give a specific answer on whether an EV car is a better overall option. We will be able to give a specific answer if a) we know the exact needs of each individual person or household and b) consider also advancements in technology that can lead to changes in ecological impact and costs. b.No we cannot knowc.Yes EV cars are better than ICE carsd.Considering questions 3 a and b, we can clearly say that EV car is a better overall option if we plan to keep it for more than 5 years and we travel more than 10 000 km per year.