Question

question 4 (1 point) use the information and image to answer the following question. a pendulum is released from a certain height. as it swings back and forth, which of the following best describes what happens to energy according to the law of conservation of energy? the potential energy increases and the kinetic energy decreases as the pendulum reaches its lowest point. the potential energy decreases and the kinetic energy increases as the pendulum swings higher. the potential energy and kinetic energy are both constant during the entire motion of the pendulum. the potential energy is constant, while the kinetic energy varies throughout the motion of the pendulum.

Explanation:

The Law of Conservation of Energy states that energy is neither created nor destroyed, just converted between forms. For a pendulum, at the highest - points, it has maximum potential energy and minimum kinetic energy. As it swings down to the lowest point, potential energy decreases and kinetic energy increases because height decreases and speed increases.

Answer:

The potential energy decreases and the kinetic energy increases as the pendulum swings lower (not higher as in the wrong option). As it swings back up, kinetic energy is converted back to potential energy. So the correct statement is: The potential energy decreases and the kinetic energy increases as the pendulum reaches its lowest point.