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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 else can I help you with?
What are two interesting facts about mechanical energy?
Mechanical energy is the sum of kinetic energy and potential energy in a system. Mechanical energy can be converted from one form to another, such as from potential to kinetic energy in a swinging pendulum.
What are examples of mechanical kinetic energy?
Examples of mechanical kinetic energy include a moving car, a revolving ceiling fan, a spinning top, and a swinging pendulum.
What is the input and output energy of a pendulum?
The input energy of a pendulum is the potential energy when it is lifted to a certain height, and the output energy is the kinetic energy when it is swinging back and forth. The total mechanical energy of the system remains constant, with potential energy converting to kinetic energy and vice versa during the pendulum's motion.
What form of energy is demonstrated by the motion of pendulum swinging back and forth?
The kinetic energy is demonstrated by the motion of a pendulum swinging back and forth. As the pendulum moves, it converts potential energy (from its raised position) into kinetic energy (from its motion).
What form of energy is demonstrated by the motion of the pendulum swinging back and forth?
The motion of a swinging pendulum demonstrates kinetic energy, which is the energy of motion. As the pendulum swings back and forth, its kinetic energy changes as it moves between potential energy at the highest point of the swing.
What are two interesting facts about mechanical energy?
Mechanical energy is the sum of kinetic energy and potential energy in a system. Mechanical energy can be converted from one form to another, such as from potential to kinetic energy in a swinging pendulum.
What are examples of mechanical kinetic energy?
Examples of mechanical kinetic energy include a moving car, a revolving ceiling fan, a spinning top, and a swinging pendulum.
What is the input and output energy of a pendulum?
The input energy of a pendulum is the potential energy when it is lifted to a certain height, and the output energy is the kinetic energy when it is swinging back and forth. The total mechanical energy of the system remains constant, with potential energy converting to kinetic energy and vice versa during the pendulum's motion.
What would happen if you let a pendulum go on swinging?
Obviously, it will stop after sometime , after swinging. It is because we cannot apply energy continuously to the swinging pendulum.
What form of energy is demonstrated by the motion of pendulum swinging back and forth?
The kinetic energy is demonstrated by the motion of a pendulum swinging back and forth. As the pendulum moves, it converts potential energy (from its raised position) into kinetic energy (from its motion).
What form of energy is demonstrated by the motion of the pendulum swinging back and forth?
The motion of a swinging pendulum demonstrates kinetic energy, which is the energy of motion. As the pendulum swings back and forth, its kinetic energy changes as it moves between potential energy at the highest point of the swing.
Example of machanical energy?
A swinging pendulum is an example of mechanical energy. As the pendulum moves back and forth, it alternates between potential energy at its highest points and kinetic energy at its lowest points. This transfer between potential and kinetic energy represents mechanical energy.
A swinging pendulum demonstrates which type of energy?
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.
What are two examples of micanical energy?
a) gravitational potential energy, b) kinetic energy. I believe elastic energy would also be considered mechanical energy.
Where is mechanical energy found?
Mechanical energy is found in objects that are in motion or under tension, such as a moving car, a swinging pendulum, or a stretched rubber band. It can also be found in systems where potential and kinetic energy are being interchanged.
When considering a swinging pendulum its kinetic energy is greatest when?
At its lowest point
A swinging pendulum is moving fastest at?
A swinging pendulum is moving fastest at the lowest point of its arc. That is the point where all its potential energy has been converted into kinetic energy, and it is the only point in a pendulum's arc where that happens. See related link (a simulation).
