Question bank: Energy Transformation

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Question 1:

Easy

Imagine you are at an amusement park and observe a ride called 'The Drop Tower'. In this ride, an elevator takes people to the top of a tower and then releases them in free fall. During the descent, gravitational potential energy is converted into kinetic energy. Consider that the mass of the empty elevator is 1200 kg and it descends from a height of 50 m. 1. Calculate the gravitational potential energy of the elevator at the highest point of the tower. 2. Assuming that all gravitational potential energy is converted into kinetic energy at the lowest point of the fall, calculate the kinetic energy of the elevator at that point.

Energy Transformation

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Question 2:

Easy

Using electrical energy efficiently is a way to save natural resources, as it is possible to use devices that consume less energy. What is the main way to take advantage of electrical energy efficiently?

Energy Transformation

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Question 3:

Medium

Energy transformation is a process that aims to change the way it is presented, so that it can be used in various types of processes. What are the main forms of energy transformation?

Energy Transformation

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Question 4:

Easy

Energy conversion is the process of transforming one form of energy into another. It is a phenomenon present in various daily activities, from the production of electricity to the operation of mechanical tools. What are the main sources of energy that can be converted?

Energy Transformation

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Question 5:

Easy

Consider a thermal power plant that operates by burning fossil fuels, such as coal or oil, to generate electricity. During this process, the thermal energy contained in the fuel is converted into mechanical energy and, finally, into electrical energy that we use in our homes. Reflecting on this practical situation, explain the energy transformation process that occurs in the thermal power plant, identifying the different types of energy involved and describing how each one is converted into the next. In addition, discuss a possible environmental consequence of this process of converting thermal energy into electrical energy.

Energy Transformation

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