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Swinging pendulum comes to rest is it violation of mechanical energy?
Conservation of mechanical energy is only an approximation of reality. There is friction caused by the resistance of air as the pendulum is swinging, gradually reducing its speed, therefore its kinetic energy. As a result, mechanical energy is not conserved. At school, however, in most physics problems, the question or your instructor will most likely tell you to disregard this friction, because its expression only complicates your calculations.
What are some characteristics of mechanical energy?
Mechanical energy is the sum of potential energy and kinetic energy in a system. It is conserved in the absence of non-conservative forces like friction. Mechanical energy can be in the form of rotational or translational motion.
Is a pendulum inelastic?
A pendulum is considered to be elastic because it converts potential energy into kinetic energy and back again without any energy loss due to friction or other dissipative forces. This means that the total mechanical energy of the pendulum remains constant throughout its motion.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
The total mechanical energy of the system is conserved and remains constant as long as the only force acting on the pendulum is gravity. This means that the sum of the kinetic energy and potential energy of the pendulum remains constant throughout its motion.
Why does a ideal pendulum swing back and forth indefinitely?
An ideal pendulum is one in which no air resistance or friction is present. Hence when set into motion it never loses energy to it's surrondings. So when released, and left to swing, the energy potential it had get's convertedinto kinetic energy and therefore the pendulum swings. When it reaches it's amplitude(Highest swing) the energy is converted back to potential, and as it falls back to kinetic. As it is "ideal" it never loses energy to heat/ friction. Therefore, the conversion of kinetic energy to potential etc etc will always be constant and it will never stop. Although in reality it is impossible to have an "ideal" pendulum, near ideal ones can be obtained by suspending the pendulum in a vacuum.
Swinging pendulum comes to rest is it violation of mechanical energy?
Conservation of mechanical energy is only an approximation of reality. There is friction caused by the resistance of air as the pendulum is swinging, gradually reducing its speed, therefore its kinetic energy. As a result, mechanical energy is not conserved. At school, however, in most physics problems, the question or your instructor will most likely tell you to disregard this friction, because its expression only complicates your calculations.
What are some characteristics of mechanical energy?
Mechanical energy is the sum of potential energy and kinetic energy in a system. It is conserved in the absence of non-conservative forces like friction. Mechanical energy can be in the form of rotational or translational motion.
Is a pendulum inelastic?
A pendulum is considered to be elastic because it converts potential energy into kinetic energy and back again without any energy loss due to friction or other dissipative forces. This means that the total mechanical energy of the pendulum remains constant throughout its motion.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
The total mechanical energy of the system is conserved and remains constant as long as the only force acting on the pendulum is gravity. This means that the sum of the kinetic energy and potential energy of the pendulum remains constant throughout its motion.
Why does a ideal pendulum swing back and forth indefinitely?
An ideal pendulum is one in which no air resistance or friction is present. Hence when set into motion it never loses energy to it's surrondings. So when released, and left to swing, the energy potential it had get's convertedinto kinetic energy and therefore the pendulum swings. When it reaches it's amplitude(Highest swing) the energy is converted back to potential, and as it falls back to kinetic. As it is "ideal" it never loses energy to heat/ friction. Therefore, the conversion of kinetic energy to potential etc etc will always be constant and it will never stop. Although in reality it is impossible to have an "ideal" pendulum, near ideal ones can be obtained by suspending the pendulum in a vacuum.
What energy occur as a pendulum swings?
There is Mechanical Energy. This Mechanical Energy equals Potential + Kinetic Energies. At the maximum heigh and with the pendulum set still there is the maximum Potential Energy (so Kinetic equals 0, and Potential Energy equals Mechanical Energy). When we release the pendulum this Potential Energy transforms into Kinetic Energy which will be maximum and equal to the Mechanical Energy when the 'rope' or 'string' that holds the pendulum is in the same direction as the acceleration, or force, in this case gravity. Then, and if there is no friction (e.g. air) the pendulum will reach the same maximum heigh that it had in X0 and the Kinetic Energy will transform into Potential, reinitiating the process but in the opposite direction. Hope i helped and sorry for my english. :)
How do you use mechanical energy in a sentence?
You can see an example of mechanical energy when an earthquake happens.
Is mechanical energy always conserved why or why not?
Mechanical energy is not always conserved. It can be converted into other forms of energy such as heat, sound, or work, due to external forces like friction or air resistance acting on the system. In the absence of non-conservative forces, mechanical energy is conserved according to the law of conservation of energy.
When a pendulum stops swaying and its at rest has it loss energy?
Yes. Pendulum lose energy due to friction with the air.
What are the characteristics of mechanical energy?
Mechanical energy is the sum of kinetic and potential energy in a system. It is associated with motion and position of an object. Mechanical energy is conserved in the absence of non-conservative forces like friction.
Friction causes mechanical energy to be transformed into what?
Friction causes mechanical energy to be transformed into heat energy.
A pendulum has a kinetic energy of 65 J and a gravitational potential energy of 78 J. What is its mechanical energy?
The mechanical energy is the sum of the two.
