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7. Play the simulation. Describe where the Blue Item is when it has reached its highest kinetic energy and what happens to the energy of the item as it gains height again. Type Answer HERE: The blue item is around O when the Kinetic Energy is the highest and when the item gains high again the potential energy is now the highest. 8. Continue to play the simulation. This simulation will go on and on for eternity if we let it. This simulation is in what we call a Closed System. We are only looking at the variables we want to in this simulation. In the Real World (Open System), if we had a Pendulum like this, it would eventually stop. Explain why it would stop in the Real World. Type Answer HERE:

In the real world, a pendulum would eventually stop due to the presence of external forces such as air resistance and friction. These forces act to slow down the motion of the pendulum over time, causing it to lose energy and eventually come to a rest. Additionally, the pendulum may also lose energy through other factors such as internal friction within the system and sound or heat energy loss. Therefore, in an open system, the pendulum's motion would gradually decrease and eventually stop due to the dissipative forces present.

Pause the simulation and raise the Blue Item up to 90°. What energy type is at its highest and why?

Type Answer HERE:

When the Blue Item is raised up to 90°, the potential energy is at its highest. This is because potential energy is associated with the position or height of an object relative to a reference point. At 90°, the Blue Item is at its highest point and has the maximum potential energy because it has the potential to fall down and convert that potential energy into kinetic energy as it moves downward.

In the real world, a pendulum like this would eventually stop due to the presence of external factors such as air resistance and friction. As the pendulum swings back and forth, it experiences resistance from the air and friction at the pivot point, which gradually reduces its energy over time. This leads to a loss of kinetic energy, resulting in a decrease in the amplitude of the swings until eventually, the pendulum comes to a stop.