Question bank: Energy Transformation

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Question 1:

Medium

In a thermal power station, the heat produced from burning fossil fuels is used to heat water in a boiler, creating steam. This steam then drives the blades of a turbine linked to a generator, which converts mechanical energy into electrical energy. Given the process described, which of the options below accurately represents the order of energy transformations that take place in this power station?

Energy Transformation

Question 2:

Medium

Energy Transformation

Question 3:

Hard

In a city situated by a river, they've set up a hydroelectric power plant that harnesses the potential energy of water to generate electricity. During a school excursion to the plant, the guide explained that for electrical energy to reach households, it undergoes various transformations, including turning mechanical energy into electrical energy. Keeping in mind the principles of energy conservation and transformation, which of the following stages represents a key transformation that takes place inside the hydroelectric power plant for the effective supply of electrical energy?

Energy Transformation

Question 4:

Hard

In a city where the need for electricity is on the rise, there's a proposal for building a new thermoelectric power plant to meet this demand. In the energy conversion process at the plant, the heat produced by burning fuel is transformed into electricity. Considering the efficiency of this energy conversion and the environmental impacts involved, what’s the key aspect to evaluate when deciding between constructing a thermoelectric power plant or adopting renewable energy sources, like solar or wind?

Energy Transformation

Question 5:

Medium

Energy Transformation

IARA TIP

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