A pendulum will lose energy in two ways: 1. by friction with the air, 2. by friction in its supporting bearing. Both these energy losses will produce heat.
me
No, it is not a chemical form of energy.
From potential to kinetic and back again - with every swing.
Energy is conserved in an isolated system, meaning since energy cannot be created or destroyed, the amount of energy in the system is the same. The point is, what is the 'system' in a certain scenario. Even if the pendulum was in an isolated room, that doesn't mean the pendulum will swing forever, because energy is constsntly lost to the environment, due to the friction with the air. But while energy is lost from the pendulum, energy is gained by the surrounding air molecules (also isolated), and thus energy in the system is conserved. Eventually the pendulum's kinetic energy will be zero, having lost too much to be able to make it move.
A swinging pendulum demonstrates primarily two types of energy - kinetic energy when the pendulum is in motion, and potential energy - based on how high it is above the mid-point of the swing. If not for friction, a pendulum would continue to swing forever, with the sum of the kinetic and potential energy remaining constant but the distribution between the two constantly changing as the pendulum moved through its swings.
As the pendulum stops swinging, its maximum kinetic energy (the initial energy at the beginning of the swing) decreases, and its potential energy increases. Once the pendulum stops, it will have zero kinetic energy and maximum potential energy.
When the bob of the pendulum while moving stops at one, its Kinetic energy changes completely into potential energy and when it starts its motion again, the potential energy changes to the kinetic energy
If at the top of the swing the pendulum is STOPPED then it has zero kinetic energy.
me
Potential energy
At the low point of a swinging pendulum, the type of energy being demonstrated is maximum kinetic energy. It has zero potential energy at this point of the swing.
No, it is not a chemical form of energy.
From potential to kinetic and back again - with every swing.
A pendulum transfers potential gravitational energy (at the top of its swing) to kinetic energy (movement at the bottom of the swing) and then back again (at the top on the other side).
A swinging pendulum has potential energy at each end of it's travel (when it stops momentarily) This energy is converted to kinetic energy as it swings down and back to potential energy as it swings up the other way.
Energy is conserved in an isolated system, meaning since energy cannot be created or destroyed, the amount of energy in the system is the same. The point is, what is the 'system' in a certain scenario. Even if the pendulum was in an isolated room, that doesn't mean the pendulum will swing forever, because energy is constsntly lost to the environment, due to the friction with the air. But while energy is lost from the pendulum, energy is gained by the surrounding air molecules (also isolated), and thus energy in the system is conserved. Eventually the pendulum's kinetic energy will be zero, having lost too much to be able to make it move.
In a pendulum, the energy transformations involve potential energy being converted to kinetic energy as the pendulum swings back and forth. At the highest point of the swing, the pendulum has maximum potential energy, which is then converted to maximum kinetic energy at the lowest point of the swing. This process continues as the pendulum oscillates, with energy being continually converted between potential and kinetic forms.