Determine how potential and kinetic energy changes at each position of the pendulum as the ball swings from A to E.
Answers
Answer:
Position A: is all potential
Position B: is losing potential and gaining kinetic
Position C: is all kinetic
Position D: is losing kinetic and gaining potential
Position E: is all potential
Explanation:
Answer:
Position A is a point of maximum potential energy and minimum kinetic energy since it is the highest point of the pendulum. Position B, which is half way between A and C, the ball is losing potential energy and gaining kinetic energy.
Explanation:
At position E the potential energy of the pendulum is zero because the bob is at the bottom of the swing.
As the pendulum swings back and forth, the balance between the two types of energy changes constantly. At some points in its swing, the pendulum has more kinetic energy. At other points, it has more potential energy.
In a simple pendulum with no friction, mechanical energy is conserved. Total mechanical energy is a combination of kinetic energy and gravitational potential energy. As the pendulum swings back and forth, there is a constant exchange between kinetic energy and gravitational potential energy.
As a pendulum swings, its potential energy changes to kinetic energy, then back to potential energy, then back to kinetic energy, and so forth.
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