The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes in energy as she begins to descend?
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Answer: Kinetic energy is increasing, and potential energy is decreasing
To understand the changes in energy as the girl in the picture starts to descend while swinging, we need to consider the principles of potential and kinetic energy.
1. Potential Energy: When the girl is at the highest point of her swing, she possesses the highest potential energy. This is because potential energy is dependent on an object's height or position relative to some reference point. As she begins to descend, her potential energy decreases gradually.
2. Kinetic Energy: As the girl starts descending, her potential energy is converted into kinetic energy. Kinetic energy is the energy of motion, and it depends on an object's mass and velocity. As the girl swings down, her velocity increases, leading to an increase in kinetic energy.
Combining these principles, we can conclude that as the girl in the picture begins to descend while swinging, her potential energy decreases, while her kinetic energy increases. So, the best statement describing the changes in energy is that her potential energy decreases and her kinetic energy increases.