8. David Arva is standing on the roof of his house. He throws a basketball off the roof. Which of these best describes what happens as the ball falls? A. The kinetic energy increases and so does the total amount of energy. B. The kinetic energy decreases and the total amount of energy increases. C. The potential energy decreases and the total amount of energy also decreases. D. The kinetic energy increases and the potential energy decreases. But the total energy remains the same.

D. The kinetic energy increases and the potential energy decreases. But the total energy remains the same.

Explanation:

Potential energy is the energy that every body stores naturally and that, for a certain period of time, represents the total energy of that body. However, this energy is easily transformed into other types of energy depending on the situation and the factors that current about this body, however, this transformation does not decrease the amount of total energy, in most cases. One of these cases can be seen in the question above, where David captures a ball that has potential energy stored and released from the roof of the house. As the ball moves, the potential energy turns into kinetic energy (which is the energy responsible for the movement), there is no loss of the ball's total energy, just a transformation. This transformation decreases the amount of potential to mediated energy that transforms it into kinetic energy, which increases in quantity.

terrestrial level - terrene position

potentially - possible/likely

dangerous tasks - treacherous assignment

specifically - exactly/precisely

disabilities - impairment/ailment

to boost - push/lift/raise

artificial intelligence - robot/ ai/machine

enemies - terrorist/opponent/competitor

scientific endeavors - experimental intent

valuable - expensive/priceless

result - outcome/product

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