Question 1
This image of people on a rollercoaster shows:
- the moment that potential energy is no longer at its maximum and begins converting to kinetic energy
- the moment that kinetic energy is at its maximum
- the moment that potential energy is at its least as its being converted to kinetic energy
- the moment that potential and kinetic energy are equal
Explanation: The answer is "the moment that potential energy is no longer at its maximum and begins converting to kinetic energy."
Potential Energy is “stored energy.” It is energy that is ready to be converted or released as another type of energy. We most often think of potential energy as gravitational potential energy. When objects are higher up, they are ready to fall back down. When you stretch an object and it has a tendency to return to its original shape, it is said to have elastic potential energy. Chemical potential energy is the stored energy in a substance’s chemical structure that can be released in a chemical reaction or as heat.
Potential energy is greatest when the most energy is stored. This could be when an object reaches its highest point in the air before falling, a rollercoaster just before it drops, or when a rubber band is stretched as far back as possible before it snaps. Potential energy is then converted to kinetic energy.